0001327567-21-000029 | 10-K | XBRL Viewer

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Cover Page - USD ($)	12 Months Ended
Cover Page - USD ($)	Jul. 31, 2021	Aug. 23, 2021	Jan. 31, 2021
Cover [Abstract]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Jul. 31, 2021
Document Fiscal Year End Date	--07-31
Document Transition Report	false
Entity File Number	001-35594
Entity Registrant Name	Palo Alto Networks, Inc
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	20-2530195
Entity Address, Address Line One	3000 Tannery Way
Entity Address, City or Town	Santa Clara
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	95054
City Area Code	408
Local Phone Number	753-4000
Title of 12(b) Security	Common stock, $0.0001 par value per share
Trading Symbol	PANW
Security Exchange Name	NYSE
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	true
Entity Shell Company	false
Entity Public Float			$ 33,296,058,434
Entity Common Stock, Shares Outstanding		97,406,113
Documents Incorporated by Reference	Portions of the information called for by Part III of this Annual Report on Form 10-K is hereby incorporated by reference from the definitive proxy statement for the registrant’s 2021 annual meeting of stockholders, which will be filed with the Securities and Exchange Commission not later than 120 days after the registrant’s fiscal year ended July 31, 2021.
Entity Central Index Key	0001327567
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	FY
Amendment Flag	false

CONSOLIDATED BALANCE SHEETS Statement - USD ($) $ in Millions	Jul. 31, 2021	Jul. 31, 2020
Current assets:
Cash and cash equivalents	$ 1,874.2	$ 2,958.0
Short-term investments	1,026.9	789.8
Accounts receivable, net of allowance for credit losses of $11.2 and $2.3 at July 31, 2021 and July 31, 2020, respectively	1,240.4	1,037.1
Short-term deferred contract costs	276.5	206.0
Prepaid expenses and other current assets	229.3	138.3
Total current assets	4,647.3	5,129.2
Property and equipment, net	318.4	348.1
Operating lease right-of-use assets	262.9	258.7
Long-term investments	888.3	554.4
Long-term deferred contract costs	494.6	422.3
Goodwill	2,710.1	1,812.9
Intangible assets, net	498.6	358.2
Other assets	421.4	181.6
Total assets	10,241.6	9,065.4
Current liabilities:
Accounts payable	56.9	63.6
Accrued compensation	430.6	322.2
Accrued and other liabilities	329.4	256.8
Deferred revenue	2,741.9	2,049.1
Convertible senior notes, net	1,557.9	0.0
Total current liabilities	5,116.7	2,691.7
Convertible senior notes, net	1,668.1	3,084.1
Long-term deferred revenue	2,282.1	1,761.1
Long-term operating lease liabilities	313.4	336.6
Other long-term liabilities	97.7	90.1
Commitments and contingencies (Note 12)
Temporary equity	129.1	0.0
Stockholders’ equity:
Preferred stock; $0.0001 par value; 100.0 shares authorized; none issued and outstanding at July 31, 2021 and July 31, 2020	0.0	0.0
Common stock and additional paid-in capital; $0.0001 par value; 1,000.0 shares authorized; 97.3 and 96.3 shares issued and outstanding at July 31, 2021 and July 31, 2020, respectively	2,311.2	2,259.2
Accumulated other comprehensive income (loss)	(9.9)	10.5
Accumulated deficit	(1,666.8)	(1,167.9)
Total stockholders’ equity	634.5	1,101.8
Total liabilities, temporary equity and stockholders’ equity	$ 10,241.6	$ 9,065.4

CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Millions	Jul. 31, 2021	Jul. 31, 2020
Current assets:
Allowance for doubtful accounts	$ 11.2	$ 2.3
Stockholders’ equity:
Preferred stock, par value (in usd per share)	$ 0.0001	$ 0.0001
Preferred stock, shares authorized (in shares)	100,000,000.0	100,000,000.0
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in usd per share)	$ 0.0001	$ 0.0001
Common stock, shares authorized (in shares)	1,000,000,000	1,000,000,000
Common stock, shares issued (in shares)	97,300,000	96,300,000
Common stock, shares outstanding (in shares)	97,300,000	96,300,000

CONSOLIDATED STATEMENTS OF OPERATIONS Statement - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Jul. 31, 2021	Jul. 31, 2020	Jul. 31, 2019
Revenue:
Revenue	$ 4,256.1	$ 3,408.4	$ 2,899.6
Cost of revenue:
Cost of revenue	1,274.9	999.5	808.4
Total gross profit	2,981.2	2,408.9	2,091.2
Operating expenses:
Research and development	1,140.4	768.1	539.5
Sales and marketing	1,753.8	1,520.2	1,344.0
General and administrative	391.1	299.6	261.8
Total operating expenses	3,285.3	2,587.9	2,145.3
Operating loss	(304.1)	(179.0)	(54.1)
Interest expense	(163.3)	(88.7)	(83.9)
Other income, net	2.4	35.9	63.4
Loss before income taxes	(465.0)	(231.8)	(74.6)
Provision for income taxes	33.9	35.2	7.3
Net loss	$ (498.9)	$ (267.0)	$ (81.9)
Net loss per share, basic (in USD per share)	$ (5.18)	$ (2.76)	$ (0.87)
Net loss per share, diluted (in USD per share)	$ (5.18)	$ (2.76)	$ (0.87)
Weighted-average shares used to compute net loss per share, basic (in shares)	96.4	96.9	94.5
Weighted-average shares used to compute net loss per share, diluted (in shares)	96.4	96.9	94.5
Product
Revenue:
Revenue	$ 1,120.3	$ 1,064.2	$ 1,096.2
Cost of revenue:
Cost of revenue	308.5	294.4	315.9
Subscription and support
Revenue:
Revenue	3,135.8	2,344.2	1,803.4
Cost of revenue:
Cost of revenue	$ 966.4	$ 705.1	$ 492.5

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) Statement - USD ($) $ in Millions	12 Months Ended
	Jul. 31, 2021	Jul. 31, 2020	Jul. 31, 2019
Statement of Comprehensive Income [Abstract]
Net loss	$ (498.9)	$ (267.0)	$ (81.9)
Other comprehensive income (loss), net of tax:
Change in unrealized gains (losses) on investments	(3.0)	1.0	10.4
Change in unrealized gains (losses) on cash flow hedges	(17.4)	13.2	2.3
Other comprehensive income (loss)	(20.4)	14.2	12.7
Comprehensive loss	$ (519.3)	$ (252.8)	$ (69.2)

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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+ Details

CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY Statement - USD ($) shares in Millions, $ in Millions	Total	Cumulative-effect adjustment from adoption of new accounting pronouncement	Common stock	Common stock and additional paid in capital	Accumulated Other Comprehensive Income (Loss)	Accumulated Deficit	Accumulated Deficit Cumulative-effect adjustment from adoption of new accounting pronouncement
Common stock, beginning balance (in shares) at Jul. 31, 2018			93.6
Beginning balance at Jul. 31, 2018	$ 1,160.3	$ (28.3)		$ 1,967.4	$ (16.4)	$ (790.7)	$ (28.3)
Increase (decrease) in stockholders' equity
Net loss	(81.9)					(81.9)
Other comprehensive income (loss)	12.7				12.7
Issuance of common stock in connection with employee equity incentive plans (in shares)			3.8
Issuance of common stock in connection with employee equity incentive plans	72.0			72.0
Taxes paid related to net share settlement of equity awards	(33.2)			(33.2)
Share-based compensation for equity-based awards	575.5			575.5
Repurchase and retirement of common stock (in shares)			(1.9)
Repurchase and retirement of common stock	(330.0)			(330.0)
Temporary equity reclassification	21.9			21.9
Settlement of convertible notes (in shares)			2.5
Settlement of convertible notes	(12.2)			(12.2)
Common stock received from exercise of note hedges (in shares)			(2.5)
Issuance of common and restricted common stock in connection with acquisitions (in shares)			1.3
Issuance of common and restricted common stock in connection with acquisitions	229.5			229.5
Common stock, ending balance (in shares) at Jul. 31, 2019			96.8
Ending balance at Jul. 31, 2019	1,586.3			2,490.9	(3.7)	(900.9)
Increase (decrease) in stockholders' equity
Net loss	(267.0)					(267.0)
Other comprehensive income (loss)	14.2				14.2
Issuance of common stock in connection with employee equity incentive plans (in shares)			3.6
Issuance of common stock in connection with employee equity incentive plans	84.0			84.0
Taxes paid related to net share settlement of equity awards	(22.7)			(22.7)
Share-based compensation for equity-based awards	674.4			674.4
Repurchase and retirement of common stock (in shares)			(6.1)
Repurchase and retirement of common stock	(1,198.1)			(1,198.1)
Settlement of warrants (in shares)			2.0
Equity component of convertible senior notes, net	398.7			398.7
Issuance of warrants	202.8			202.8
Purchase of note hedges	$ (370.8)			(370.8)
Common stock, ending balance (in shares) at Jul. 31, 2020	96.3		96.3
Ending balance at Jul. 31, 2020	$ 1,101.8			2,259.2	10.5	(1,167.9)
Increase (decrease) in stockholders' equity
Net loss	(498.9)					(498.9)
Other comprehensive income (loss)	(20.4)				(20.4)
Issuance of common stock in connection with employee equity incentive plans (in shares)			3.7
Issuance of common stock in connection with employee equity incentive plans	104.0			104.0
Taxes paid related to net share settlement of equity awards	(28.9)			(28.9)
Share-based compensation for equity-based awards	943.4			943.4
Repurchase and retirement of common stock (in shares)			(4.0)
Repurchase and retirement of common stock	(1,178.1)			(1,178.1)
Temporary equity reclassification	(129.1)			(129.1)
Issuance of common and restricted common stock in connection with acquisitions (in shares)			1.3
Issuance of common and restricted common stock in connection with acquisitions	$ 340.7			340.7
Common stock, ending balance (in shares) at Jul. 31, 2021	97.3		97.3
Ending balance at Jul. 31, 2021	$ 634.5			$ 2,311.2	$ (9.9)	$ (1,666.8)

CONSOLIDATED STATEMENTS OF CASH FLOWS Statement - USD ($) $ in Millions	12 Months Ended
	Jul. 31, 2021	Jul. 31, 2020	Jul. 31, 2019
Cash flows from operating activities
Net loss	$ (498.9)	$ (267.0)	$ (81.9)
Adjustments to reconcile net loss to net cash provided by operating activities:
Share-based compensation for equity-based awards	894.5	658.4	567.7
Depreciation and amortization	260.4	206.1	153.8
(Gain) loss related to facility exit	0.0	(3.1)	7.0
Amortization of deferred contract costs	298.0	254.4	223.8
Amortization of debt discount and debt issuance costs	142.9	73.9	70.2
Amortization of operating lease right-of-use assets	44.5	47.4	0.0
Amortization of investment premiums, net of accretion of purchase discounts	13.1	(6.2)	(17.5)
Loss on conversions of convertible senior notes	0.0	0.0	2.6
Repayments of convertible senior notes attributable to debt discount	(0.1)	0.0	(97.6)
Changes in operating assets and liabilities, net of effects of acquisitions:
Accounts receivable, net	(172.4)	(435.6)	(108.7)
Deferred contract costs	(440.8)	(407.4)	(361.1)
Prepaid expenses and other assets	(299.1)	(1.6)	28.6
Accounts payable	(11.8)	(12.8)	32.3
Accrued compensation	105.1	75.7	66.8
Accrued and other liabilities	(28.5)	(39.8)	(20.6)
Deferred revenue	1,196.1	893.3	590.2
Net cash provided by operating activities	1,503.0	1,035.7	1,055.6
Cash flows from investing activities
Purchases of investments	(1,958.9)	(1,180.8)	(2,984.6)
Proceeds from sales of investments	131.1	314.0	6.5
Proceeds from maturities of investments	1,240.5	1,952.7	2,057.1
Business acquisitions, net of cash acquired	(777.3)	(583.5)	(773.7)
Purchases of property, equipment, and other assets	(116.0)	(214.4)	(131.2)
Net cash provided by (used in) investing activities	(1,480.6)	288.0	(1,825.9)
Cash flows from financing activities
Repayments of convertible senior notes attributable to principal and equity component	(0.9)	0.0	(477.4)
Payments for debt issuance costs	(0.2)	0.0	(3.7)
Proceeds from borrowings on convertible senior notes, net	0.0	1,979.1	0.0
Proceeds from issuance of warrants	0.0	202.8	0.0
Purchase of note hedges	0.0	(370.8)	0.0
Repurchases of common stock	(1,178.1)	(1,198.1)	(330.0)
Proceeds from sales of shares through employee equity incentive plans	104.0	84.0	71.7
Payments for taxes related to net share settlement of equity awards	(28.8)	(22.7)	(33.2)
Payment of deferred consideration related to prior year business acquisition	0.0	(1.3)	(1.3)
Net cash provided by (used in) financing activities	(1,104.0)	673.0	(773.9)
Net increase (decrease) in cash, cash equivalents, and restricted cash	(1,081.6)	1,996.7	(1,544.2)
Cash, cash equivalents, and restricted cash—beginning of period	2,961.7	965.0	2,509.2
Cash, cash equivalents, and restricted cash—end of period	1,880.1	2,961.7	965.0
Non-cash investing and financing activities
Equity consideration for business acquisitions	(365.4)	(11.0)	(229.5)
Supplemental disclosures of cash flow information
Cash paid for income taxes	24.9	17.2	22.0
Cash paid for contractual interest	$ 20.0	$ 13.5	$ 13.5

CONSOLIDATED STATEMENTS OF CASH FLOWS Reconciliation of cash, cash equivalents, and restricted cash to the consolidated balance sheets - USD ($) $ in Millions	Jul. 31, 2021	Jul. 31, 2020	Jul. 31, 2019
Reconciliation of cash, cash equivalents, and restricted cash
Cash and cash equivalents	$ 1,874.2	$ 2,958.0	$ 961.4
Total cash, cash equivalents, and restricted cash	1,880.1	2,961.7	965.0
Prepaid expenses and other current assets
Reconciliation of cash, cash equivalents, and restricted cash
Restricted cash	5.4	2.8	1.9
Other assets
Reconciliation of cash, cash equivalents, and restricted cash
Restricted cash	$ 0.5	$ 0.9	$ 1.7

Description of Business, Basis of Presentation, Principles of Consolidation, and Summary of Significant Accounting Policies (Notes)	12 Months Ended
	Jul. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Description of business, basis of presentation, principles of consolidation, and summary of significant accounting policies	Description of Business and Summary of Significant Accounting Policies Description of Business Palo Alto Networks, Inc. (the “Company,” “we,” “us,” or “our”), headquartered in Santa Clara, California, was incorporated in March 2005 under the laws of the State of Delaware and commenced operations in April 2005. We empower enterprises, service providers, and government entities to secure all users, applications, data, networks, clouds and devices with comprehensive visibility and context, continuously, across all locations. Basis of Presentation The accompanying consolidated financial statements have been prepared in conformity with U.S. generally accepted accounting principles (“GAAP”). The consolidated financial statements include all adjustments necessary for a fair presentation of our annual results. All adjustments are of a normal recurring nature. Principles of Consolidation The consolidated financial statements include our accounts and our wholly owned subsidiaries. All significant intercompany balances and transactions have been eliminated in consolidation. Use of Estimates The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Such management estimates include, but are not limited to, the standalone selling price for our products and services, share-based compensation, fair value of assets acquired and liabilities assumed in business combinations, identified intangibles and goodwill, valuation allowance against deferred tax assets, manufacturing partner and supplier liabilities, fair value of debt component of convertible notes, interest rate for operating lease liabilities, deferred contract cost benefit period, and loss contingencies. We base our estimates on historical experience and also on assumptions that we believe are reasonable. Actual results could differ materially from those estimates due to risks and uncertainties, including uncertainty in the current economic environment due to the global impact of COVID-19. Concentrations Financial instruments that subject us to concentrations of credit risk consist primarily of cash and cash equivalents, investments, derivative contracts, accounts receivable and financing receivables. We invest only in high-quality credit instruments and maintain our cash and cash equivalents and available-for-sale investments in fixed income securities. Management believes that the financial institutions that hold our investments are financially sound and, accordingly, are subject to minimal credit risk. Deposits held with banks may exceed the amount of insurance provided on such deposits. Our derivative contracts expose us to credit risk to the extent that the counterparties may be unable to meet the terms of the arrangement. We mitigate this credit risk by transacting with major financial institutions with high credit ratings and also enter into master netting arrangements, which permit net settlement of transactions with the same counterparty. We are not required to pledge, and are not entitled to receive, cash collateral related to these derivative instruments. We do not enter into derivative contracts for trading or speculative purposes. Our accounts receivable are primarily derived from our distributors in various geographical locations. Our financing receivables are with certain qualified end-customers. We perform ongoing credit evaluations and generally do not require collateral on accounts receivable or financing receivables. As of July 31, 2021, four distributors individually represented 10% or more of our gross accounts receivable, and in the aggregate represented 56.6% of our gross accounts receivable. As of July 31, 2021, four end-customers represented 10% or more of our gross financing receivables, and in aggregate represented 67.0% of our gross financing receivables. For fiscal 2021, three distributors represented 10% or more of our total revenue, representing 33.2%, 12.2%, and 10.6%, respectively. No single end-customer accounted for more than 10% of our total revenue in fiscal 2021, 2020, or 2019. We rely on an electronics manufacturing services provider (“EMS provider”) to assemble most of our products and sole source component suppliers for a certain number of our components. Comprehensive Loss Comprehensive loss is comprised of net loss and other comprehensive income (loss). Our other comprehensive income (loss) includes unrealized gains and losses on available-for-sale investments and unrealized gains and losses on cash flow hedges. Foreign Currency Transactions The functional currency of our foreign subsidiaries is the U.S. dollar. Monetary assets and liabilities denominated in foreign currencies have been remeasured into U.S. dollars using the exchange rates in effect at the balance sheet dates. Foreign currency remeasurement gains and losses and foreign currency transaction gains and losses are not significant to the financial statements. Fair Value We define fair value as the price that would be received from selling an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. When determining the fair value measurements for assets and liabilities which are required to be recorded at fair value, we consider the principal or most advantageous market in which to transact and the market-based risk. We apply fair value accounting for all financial assets and liabilities that are recognized or disclosed at fair value in the financial statements on a recurring basis. Goodwill, intangible assets, and other long-lived assets are measured at fair value on a nonrecurring basis, only if impairment is indicated. The carrying amounts reported in the consolidated financial statements approximate the fair value for cash and cash equivalents, accounts receivable, accounts payable, and accrued liabilities, due to their short-term nature. Cash, Cash Equivalents, and Investments We consider all highly liquid investments with original maturities of three months or less at the date of purchase to be cash equivalents. Investments not considered cash equivalents, and with maturities of one year or less from the consolidated balance sheet date, are classified as short-term investments. Investments with maturities greater than one year from the consolidated balance sheet date are classified as long-term investments. We classify our investments in marketable debt securities as available-for-sale at the time of purchase. When the fair value of a security is below its amortized cost, the amortized cost will be reduced to its fair value if it is more likely than not that we are required to sell the impaired security before recovery of its amortized cost basis, or we have the intention to sell the security. If neither of these conditions are met, we determine whether the impairment is due to credit losses by comparing the present value of the expected cash flows of the security with its amortized cost basis. The amount of impairment recognized is limited to the excess of the amortized cost over the fair value of the security. An allowance for credit losses for the excess of amortized cost over the expected cash flows is recorded in other income, net in our consolidated statements of operations. Impairment losses that are not credit-related are included in accumulated other comprehensive income (loss) (“AOCI”) in stockholders’ equity. Accounts Receivable Trade accounts receivable are recorded at the invoiced amount, net of allowances for credit losses for any potential uncollectible amounts. The allowance for credit losses is based on our assessment of the collectability of accounts. Management regularly reviews the adequacy of the allowance for credit losses on a collective basis by considering the age of each outstanding invoice, each customer’s expected ability to pay and collection history, current market conditions, and reasonable and supportable forecasts of future economic conditions to determine whether the allowance is appropriate. Accounts receivable deemed uncollectible are charged against the allowance for credit losses when identified. For the years ended July 31, 2021 and 2020, the allowance for credit losses activity was not significant. Financing Receivables We provide financing arrangements, primarily loans, for certain qualified end-user customers to purchase our products and services. Payment terms on these financing arrangements are up to five years. We evaluate our allowance for credit losses by assessing the risks and losses inherent in our financing receivables on either an individual or a collective basis. Our assessment considers various factors, including lifetime expected losses determined using customer risk profile, current economic conditions that may affect a customer’s ability to pay, and forward-looking economic considerations. Financing receivables are written off when they are considered uncollectible, and related outstanding balances are reversed and charged against the allowance for credit losses. Short-term financing receivables are included in prepaid expenses and other current assets, and long-term financing receivables are included in other assets on our consolidated balance sheets. For the years ended July 31, 2021 and 2020, the allowance for credit losses activity was not significant. Refer to Note 5. Financing Receivables for additional information. Derivatives As a global business, we are exposed to currency exchange rate risk. Substantially all of our revenue is transacted in U.S. dollars, however, a portion of our operating expenditures are incurred outside of the United States and are denominated in foreign currencies, making them subject to fluctuations in foreign currency exchange rates. We enter into foreign currency derivative contracts with maturities of 16 months or less, which we designate as cash flow hedges, to manage the foreign currency exchange rate risk associated with these expenditures. Our derivative financial instruments are recorded at fair value, on a gross basis, as either assets or liabilities in our consolidated balance sheets. Gains or losses related to our cash flow hedges are recorded as a component of AOCI in our consolidated balance sheets and are reclassified into the financial statement line item associated with the underlying hedged transaction in our consolidated statements of operations when the underlying hedged transaction is recognized in earnings. If it becomes probable that the hedged transaction will not occur, the cumulative unrealized gain or loss is reclassified immediately from AOCI into the financial statement line item associated with the underlying hedged transaction in our consolidated statements of operations. Gains or losses related to non-designated derivative instruments are recognized in other income, net in our consolidated statements of operations for each period until the instrument matures, is terminated, is re-designated as a qualified cash flow hedge, or is sold. Derivatives designated as cash flow hedges are classified in our consolidated statements of cash flows in the same manner as the underlying hedged transaction, primarily within cash flows from operating activities. Property and Equipment Property and equipment are stated at cost, less accumulated depreciation. Depreciation is computed using the straight-line method over the estimated useful lives of the assets, generally three to ten years. Leasehold improvements are depreciated over the shorter of the estimated useful lives of the improvements or the remaining lease term. Land is not depreciated. Business Combinations We include the results of operations of the businesses that we acquire as of the respective dates of acquisition. We allocate the fair value of the purchase price of our acquisitions to the tangible assets acquired, liabilities assumed, and intangible assets acquired, based on their estimated fair values. The excess of the purchase price over the fair values of these identifiable assets and liabilities is recorded as goodwill. Additional information existing as of the acquisition date but unknown to us may become known during the remainder of the measurement period, not to exceed 12 months from the acquisition date, which may result in changes to the amounts and allocations recorded. Intangible Assets Purchased intangible assets with finite lives are carried at cost, less accumulated amortization. Amortization is computed over the estimated useful lives of the respective assets. Impairment of Goodwill, Intangible Assets, and Other Long-Lived Assets Goodwill is evaluated for impairment on an annual basis in the fourth quarter of our fiscal year, and whenever events or changes in circumstances indicate the carrying amount of goodwill may not be recoverable. We have elected to first assess qualitative factors to determine whether it is more likely than not that the fair value of our single reporting unit is less than its carrying amount, including goodwill. If we determine that it is more likely than not that the fair value of our single reporting unit is less than its carrying amount, then the quantitative impairment test will be performed. Under the quantitative impairment test, if the carrying amount of our single reporting unit exceeds its fair value, we will recognize an impairment loss in an amount equal to that excess but limited to the total amount of goodwill. We evaluate events and changes in circumstances that could indicate carrying amounts of purchased intangible assets and other long-lived assets may not be recoverable. When such events or changes in circumstances occur, we assess the recoverability of these assets by determining whether or not the carrying amount will be recovered through undiscounted expected future cash flows. If the total of the future undiscounted cash flows is less than the carrying amount of an asset, we record an impairment loss for the amount by which the carrying amount of the asset exceeds the fair value of the asset. We did not recognize any impairment losses on our goodwill, intangible assets, or other long-lived assets during the years ended July 31, 2021, 2020, and 2019. Manufacturing Partner and Supplier Liabilities We outsource most of our manufacturing, repair, and supply chain management operations to our EMS provider and payments to it are a significant portion of our cost of product revenue. Although we could be contractually obligated to purchase manufactured products and components, we generally do not own the manufactured products and components. Product title transfers from our EMS provider to us and immediately to our customers upon shipment. Our EMS provider assembles our products using design specifications, quality assurance programs, and standards that we establish, and it procures components and assembles our products based on our demand forecasts. These forecasts represent our estimates of future demand for our products based upon historical trends and analysis from our sales and product management functions as adjusted for overall market conditions. If the actual component usage and product demand are significantly lower than forecast, we record a liability for manufacturing purchase commitments in excess of our forecasted demand including costs for excess components or for carrying costs incurred by our manufacturing partners and component suppliers. Through July 31, 2021, we have not accrued any significant costs associated with this exposure. Convertible Senior Notes In accounting for the issuance of our convertible senior notes, we separate the notes into liability and equity components. The carrying amount of the liability component is calculated by measuring the fair value of a similar liability that does not have an associated convertible feature, using a discounted cash flow model with a risk adjusted yield. The carrying amount of the equity component representing the conversion option is determined by deducting the fair value of the liability component from the par value of the notes as a whole. This difference represents a debt discount that is amortized to interest expense using the effective interest method over the term of the notes. The equity component is not remeasured as long as it continues to meet the conditions for equity classification. In accounting for the transaction costs related to the issuance of the notes, we allocate the total amount incurred to the liability and equity components using the same proportions as the proceeds from the notes. Transaction costs attributable to the liability component are netted with the liability component and amortized to interest expense using the effective interest method over the term of the notes. Transaction costs attributable to the equity component are netted with the equity component of the notes in additional paid-in capital in the consolidated balance sheets. When the notes are convertible, the net carrying amount of the notes is classified as a current liability and a portion of the equity component representing the conversion option is reclassified to temporary equity in our consolidated balance sheets. The portion of the equity component classified as temporary equity is measured as the difference between the principal and net carrying amount of the notes, excluding debt issuance costs. Revenue Recognition Our revenue consists of product revenue and subscription and support revenue. Revenue is recognized when control of promised products, subscriptions and support services are transferred to customers, in an amount that reflects the expected consideration in exchange for those products and services. We determine revenue recognition through the following steps: •Identification of the contract, or contracts, with a customer. •Identification of the performance obligations in the contract. •Determination of the transaction price. •Allocation of the transaction price to the performance obligations in the contract. •Recognition of revenue when, or as, we satisfy a performance obligation. Revenues are reported net of sales taxes. Shipping charges billed to channel partners are included in revenues and related costs are included in cost of revenue. Product Revenue Product revenue is derived primarily from sales of our appliances. Product revenue also includes revenue derived from software licenses of Panorama and the VM-Series. Our appliances and software licenses include a broad set of built-in networking and security features and functionalities. We recognize product revenue at the time of hardware shipment or delivery of software license. Subscription and Support Revenue Subscription and support revenue is derived primarily from sales of our subscription and support offerings. We recognize subscription and support revenue over time as the services are performed. Our contractual subscription and support contracts are typically one to five years. Contracts with Multiple Performance Obligations The majority of our contracts with our customers include various combinations of our products and subscriptions and support. Our appliances and software licenses have significant standalone functionalities and capabilities. Accordingly, these appliances and software licenses are distinct from our subscriptions and support services as the customer can benefit from the product without these services and such services are separately identifiable within the contract. We account for multiple agreements with a single customer as a single contract if the contractual terms and/or substance of those agreements indicate that they may be so closely related that they are, in effect, parts of a single contract. The amount of consideration we expect to receive in exchange for delivering on the contract is allocated to each performance obligation based on its relative standalone selling price. If a contract contains a single performance obligation, no allocation is required. We establish standalone selling price using the prices charged for a deliverable when sold separately. If the standalone selling price is not observable through past transactions, we estimate the standalone selling price based on our pricing model and our go-to-market strategy, which include factors such as type of sales channel (reseller, distributor, or end-customer), the geographies in which our offerings were sold (domestic or international), and offering type (products, subscriptions, or support). Deferred Revenue We record deferred revenue when cash payments are received or due in advance of our performance. Our payment terms typically require payment within 30 to 45 days of the date we issue an invoice. The current portion of deferred revenue represents the amounts that are expected to be recognized as revenue within one year of the consolidated balance sheet date. Deferred Contract Costs We defer contract costs that are recoverable and incremental to obtaining customer sales contracts. Contract costs, which primarily consist of sales commissions, are amortized on a systematic basis that is consistent with the transfer to the customer of the goods or services to which the asset relates. Sales commissions paid for initial contracts are generally not commensurate with the commissions paid for renewal contracts, given the substantive difference in commission rates in proportion to their respective contract values. Sales commissions for initial contracts that are not commensurate are amortized over a benefit period of five years, consistent with the revenue recognition pattern of the performance obligations in the related contracts including expected renewals. The benefit period is determined by taking into consideration contract length, technology life, and other quantitative and qualitative factors. The expected renewals are estimated based on historical renewal trends. Sales commissions for initial contracts that are commensurate and sales commissions for renewal contracts are amortized over the related contractual period in proportion to the revenue recognized. We classify deferred contract costs as short-term or long-term based on when we expect to recognize the expense. The amortization of deferred contract costs is included in sales and marketing expense in our consolidated statements of operations. Deferred contract costs are periodically reviewed for impairment. We did not recognize any impairment losses on our deferred contract costs during the years ended July 31, 2021, 2020, or 2019. Software Development Costs Internally developed software includes security software developed to meet our internal needs to provide cloud-based subscription offerings to our end-customers and business software that we customize to meet our specific operational needs. These capitalized costs consist of internal compensation related costs and external direct costs incurred during the application development stage and will be amortized over a useful life of three to five years. As of July 31, 2021 and 2020, we capitalized as other assets on our consolidated balance sheets $114.8 million and $90.1 million in costs, respectively, net of accumulated amortization, for security software developed to meet our internal needs to provide our cloud-based subscription offerings. We recognized amortization expense of $47.8 million, $31.3 million, and $12.9 million related to these capitalized costs as cost of subscription and support revenue in our consolidated statements of operations during the years ended July 31, 2021, 2020, and 2019, respectively. The costs to develop software that is marketed externally have not been capitalized as we believe our current software development process is essentially completed concurrent with the establishment of technological feasibility. As such, all related software development costs are expensed as incurred and included in research and development expense in our consolidated statements of operations. Share-Based Compensation Compensation expense related to share-based transactions, including employee and non-employee director awards, is measured and recognized in the financial statements based on fair value on the grant date. We recognize share-based compensation expense for awards with only service conditions on a straight-line basis over the requisite service period of the related award. We recognize share-based compensation expense for awards with market conditions and awards with performance conditions on a straight-line basis over the requisite service period for each separately vesting portion of the award and, for awards with performance conditions, when it is probable that the performance condition will be achieved. We account for forfeitures of all share-based payment awards when they occur. Leases We determine if an arrangement is a lease at inception. We evaluate the classification of leases at commencement and, as necessary, at modification. Operating leases are included in operating lease right-of-use assets, accrued and other liabilities, and long-term operating lease liabilities on our consolidated balance sheets. We did not have any material finance leases in any of the periods presented. Operating lease right-of-use assets represent our right to use an underlying asset for the lease term. Operating lease liabilities represent our obligation to make payments arising from the lease. Operating lease right-of-use assets and liabilities are recognized at the present value of the future lease payments at the lease commencement date. The interest rate used to determine the present value of the future lease payments is our incremental borrowing rate, because the interest rates implicit in most of our leases are not readily determinable. Our incremental borrowing rate is estimated to approximate the interest rate on a collateralized basis with similar terms and payments, and in economic environments where the leased asset is located. Operating lease right-of-use assets also include adjustments related to lease incentives, prepaid or accrued rent and initial direct lease costs. Operating lease right-of-use assets are subject to evaluation for impairment or disposal on a basis consistent with other long-lived assets. Our lease terms may include periods under options to extend or terminate the lease when it is reasonably certain that we will exercise that option. We generally use the base, non-cancelable lease term when determining the lease assets and liabilities. Operating lease cost is recognized on a straight-line basis over the lease term. We account for lease and non-lease components as a single lease component and do not recognize right-of-use assets and lease liabilities for leases with a term of 12 months or less. Payments under our lease arrangements are primarily fixed, however, certain lease agreements contain variable payments, which are expensed as incurred and not included in the operating lease right-of-use assets and liabilities. Variable lease payments are primarily comprised of real estate taxes, common area maintenance, and insurance. Income Taxes We account for income taxes using the asset and liability method, which requires the recognition of deferred tax assets and liabilities for the expected future tax consequences of events that have been recognized in our financial statements or tax returns. In addition, deferred tax assets are recorded for the future benefit of utilizing net operating losses and research and development credit carryforwards. Valuation allowances are provided when necessary to reduce deferred tax assets to the amount expected to be realized. Significant judgment is required in determining any valuation allowance recorded against deferred tax assets. In assessing the need for a valuation allowance, we consider all available evidence, including past operating results, estimates of future taxable income, and the feasibility of tax planning strategies. In the event that we change our determination as to the amount of deferred tax assets that can be realized, we will adjust our valuation allowance with a corresponding impact to the provision for income taxes in the period in which such determination is made. We apply the authoritative accounting guidance prescribing a threshold and measurement attribute for the financial recognition and measurement of a tax position taken or expected to be taken in a tax return. We recognize liabilities for uncertain tax positions based on a two-step process. The first step is to evaluate the tax position for recognition by determining if the weight of available evidence indicates that it is more likely than not that the position will be sustained on audit, including resolution of related appeals or litigation processes, if any. The second step requires us to estimate and measure the tax benefit as the largest amount that is more likely than not to be realized upon ultimate settlement. Loss Contingencies We are subject to the possibility of various loss contingencies arising in the ordinary course of business. In determining loss contingencies, we consider the likelihood of loss or impairment of an asset, or the incurrence of a liability, as well as our ability to reasonably estimate the amount of loss. An estimated loss contingency is accrued when it is probable that an asset has been impaired, or a liability has been incurred and the amount of loss can be reasonably estimated. If we determine that a loss is possible and the range of the loss can be reasonably determined, then we disclose the range of the possible loss. We regularly evaluate current information available to us to determine whether an accrual is required, an accrual should be adjusted, or a range of possible loss should be disclosed. Recently Adopted Accounting Pronouncements Credit Losses In June 2016, the Financial Accounting Standards Board (“FASB”) issued new authoritative guidance on the accounting for credit losses on most financial assets and certain financial instruments. The standard replaces the incurred loss model with an expected credit loss model for off-balance sheet credit exposures and financial assets measured at amortized cost, including trade accounts receivables and financing receivables. Credit losses on available-for-sale debt securities are required to be recorded through an allowance rather than as a write-down. We adopted this standard in our first quarter of fiscal 2021 using the modified-retrospective approach. The adoption of this standard did not have a material impact on our consolidated financial statements. Recently Issued Accounting Pronouncements Debt with Conversion Options In August 2020, the FASB issued new authoritative guidance to simplify the accounting for certain financial instruments with characteristics of liabilities and equity, including convertible instruments and contracts on an entity’s own equity. The standard reduces the number of models used to account for convertible instruments and simplifies both the classification of debt on the balance sheet and the earnings per share calculation. We intend to early adopt this standard in our first quarter of fiscal 2022 using the modified-retrospective approach, under which, financial results reported in periods prior to fiscal 2022 will not be adjusted. We expect the adoption of this standard to result in a decrease to accumulated deficit of $266.6 million, a decrease to additional paid-in capital of $711.0 million, and an increase to convertible senior notes, net of $444.4 million. Interest expense recognized in future periods will be reduced as a result of accounting for our convertible debt instrument as a single liability measured at its amortized cost.

Revenue (Notes)

12 Months Ended

Jul. 31, 2021

Revenue from Contract with Customer [Abstract]

Revenue

Disaggregation of Revenue

The following table presents revenue by geographic theater (in millions):


	Year Ended July 31,
	2021		2020		2019
Revenue:
Americas
United States	$	2,747.8	$	2,157.6	$	1,824.2
Other Americas	189.7		160.4		152.8
Total Americas	2,937.5		2,318.0		1,977.0
Europe, the Middle East, and Africa (“EMEA”)	817.3		671.9		568.6
Asia Pacific and Japan (“APAC”)	501.3		418.5		354.0
Total revenue	$	4,256.1	$	3,408.4	$	2,899.6

The following table presents revenue for groups of similar products and services (in millions):


	Year Ended July 31,
	2021		2020		2019
Revenue:
Product	$	1,120.3	$	1,064.2	$	1,096.2
Subscription and support
Subscription	1,898.8		1,405.3		1032.7
Support	1,237.0		938.9		770.7
Total subscription and support	3,135.8		2,344.2		1,803.4
Total revenue	$	4,256.1	$	3,408.4	$	2,899.6

Deferred Revenue

During the years ended July 31, 2021 and July 31, 2020, we recognized approximately $2.0 billion and $1.5 billion of revenue pertaining to amounts that were deferred as of July 31, 2020 and July 31, 2019, respectively.

Remaining Performance Obligations

Revenue expected to be recognized from remaining performance obligations was $5.9 billion as of July 31, 2021, of which we expect to recognize approximately $3.1 billion over the next 12 months and the remainder thereafter.

- Definition

The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-URI http://asc.fasb.org/topic&trid=49130388

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130551-203045

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 13
-Subparagraph (b)(2)
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130556-203045

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 12
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130554-203045

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 9
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130550-203045

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 12
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130554-203045

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 12
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130554-203045

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 12
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130554-203045

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130558-203045

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 12
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130554-203045

+ Details

Fair Value Measurements (Notes)

12 Months Ended

Jul. 31, 2021

Fair Value Disclosures [Abstract]

Fair Value Measurements

We categorize assets and liabilities recorded or disclosed at fair value on our consolidated balance sheets based upon the level of judgment associated with inputs used to measure their fair value. The categories are as follows:

•Level 1—Inputs are unadjusted quoted prices in active markets for identical assets or liabilities.

•Level 2—Inputs are quoted prices for similar assets and liabilities in active markets or inputs that are observable for the assets or liabilities, either directly or indirectly through market corroboration, for substantially the full term of the financial instruments.

•Level 3—Inputs are unobservable inputs based on our own assumptions used to measure assets and liabilities at fair value. The inputs require significant management judgment or estimation.

The following table presents the fair value of our financial assets and liabilities measured at fair value on a recurring basis using the above input categories as of July 31, 2021 and July 31, 2020 (in millions):


	July 31, 2021								July 31, 2020
	Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
Cash equivalents:
Money market funds	$	124.2	$	—	$	—	$	124.2	$	1,589.5	$	—	$	—	$	1,589.5
Certificates of deposit	—		150.4		—		150.4		—		—		—		—

Corporate debt securities	—		1.0		—		1.0		—		—		—		—
U.S. government and agency securities	—		116.3		—		116.3		—		342.0		—		342.0
Total cash equivalents	124.2		267.7		—		391.9		1,589.5		342.0		—		1,931.5
Short-term investments:
Certificates of deposit	—		12.4		—		12.4		—		26.9		—		26.9

Corporate debt securities	—		208.9		—		208.9		—		100.2		—		100.2
U.S. government and agency securities	—		762.1		—		762.1		—		645.6		—		645.6
Non-U.S. government and agency securities	—		43.5		—		43.5		—		17.1		—		17.1
Total short-term investments	—		1,026.9		—		1,026.9		—		789.8		—		789.8
Long-term investments:
Certificates of deposit	—		5.0		—		5.0		—		5.0		—		5.0
Corporate debt securities	—		180.7		—		180.7		—		91.7		—		91.7
U.S. government and agency securities	—		674.1		—		674.1		—		447.4		—		447.4
Non-U.S. government and agency securities	—		28.5		—		28.5		—		10.3		—		10.3
Total long-term investments	—		888.3		—		888.3		—		554.4		—		554.4
Prepaid expenses and other current assets:
Foreign currency forward contracts	—		4.1		—		4.1		—		13.6		—		13.6
Total prepaid expenses and other current assets	—		4.1		—		4.1		—		13.6		—		13.6
Other assets:
Foreign currency forward contracts	—		0.1		—		0.1		—		1.4		—		1.4
Total other assets	—		0.1		—		0.1		—		1.4		—		1.4
Total assets measured at fair value	$	124.2	$	2,187.1	$	—	$	2,311.3	$	1,589.5	$	1,701.2	$	—	$	3,290.7

Accrued and other liabilities:
Foreign currency forward contracts	$	—	$	6.4	$	—	$	6.4	$	—	$	—	$	—	$	—
Total accrued and other liabilities	—		6.4		—		6.4		—		—		—		—
Other long-term liabilities:
Foreign currency forward contracts	—		0.5		—		0.5		—		—		—		—
Total other long-term liabilities	—		0.5		—		0.5		—		—		—		—
Total liabilities measured at fair value	$	—	$	6.9	$	—	$	6.9	$	—	$	—	$	—	$	—

Refer to Note 10. Debt, for the carrying amount and estimated fair value of our convertible senior notes as of July 31, 2021 and July 31, 2020.

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References + Details

Cash Equivalents and Investments (Notes)

12 Months Ended

Jul. 31, 2021

Investments, Debt and Equity Securities [Abstract]

Cash equivalents and investments

Cash Equivalents and Investments

Available-for-sale Debt Securities

The following tables summarize the amortized cost, unrealized gains and losses, and fair value of our available-for-sale debt securities as of July 31, 2021 and July 31, 2020 (in millions):


	July 31, 2021
	Amortized Cost		Unrealized Gains		Unrealized Losses		Fair Value
Cash equivalents:
Certificates of deposit	$	150.4	$	—	$	—	$	150.4

Corporate debt securities	1.0		—		—		1.0
U.S. government and agency securities	116.3		—		—		116.3
Total available-for-sale cash equivalents	$	267.7	$	—	$	—	$	267.7

Investments:
Certificates of deposit	$	17.4	$	—	$	—	$	17.4

Corporate debt securities	389.2		0.5		(0.1)		389.6
U.S. government and agency securities	1,435.1		1.1		—		1,436.2
Non-U.S. government and agency securities	72.0		—		—		72.0
Total available-for-sale investments	$	1,913.7	$	1.6	$	(0.1)	$	1,915.2


	July 31, 2020
	Amortized Cost		Unrealized Gains		Unrealized Losses		Fair Value
Cash equivalents:


U.S. government and agency securities	$	342.0	$	—	$	—	$	342.0
Total available-for-sale cash equivalents	$	342.0	$	—	$	—	$	342.0

Investments:
Certificates of deposit	$	31.9	$	—	$	—	$	31.9

Corporate debt securities	190.1		1.8		—		191.9
U.S. government and agency securities	1,090.3		2.8		(0.1)		1,093.0
Non-U.S. government and agent securities	27.4		—		—		27.4
Total available-for-sale investments	$	1,339.7	$	4.6	$	(0.1)	$	1,344.2

We do not intend to sell any of the securities in an unrealized loss position and it is not likely that we would be required to sell these securities before recovery of their amortized cost basis, which may be at maturity. We did not recognize any credit losses related to our available-for-sale debt securities during the year ended July 31, 2021, and there were no other-than-temporary impairments for these securities during the year ended July 31, 2020.

The following table summarizes the amortized cost and fair value of our available-for-sale debt securities as of July 31, 2021, by contractual years-to-maturity (in millions):


	Amortized Cost		Fair Value
Due within one year	$	1,293.3	$	1,294.6
Due between one and three years	888.1		888.3
Total	$	2,181.4	$	2,182.9

Marketable Equity Securities

Marketable equity securities consist of money market funds and are included in cash and cash equivalents in our consolidated balance sheets. As of July 31, 2021 and 2020, the carrying value of our marketable equity securities were $124.2 million and $1.6 billion, respectively. There were no unrealized gains or losses recognized for these securities during the years ended July 31, 2021, 2020, and 2019.

Financing Receivables

12 Months Ended

Jul. 31, 2021

Receivables [Abstract]

Financing Receivables

The following table summarizes our short-term and long-term financing receivables as of July 31, 2021 (in millions):


	Amount
Short-term financing receivables, gross	$	80.0
Allowance for credit losses	(1.0)
Short-term financing receivables, net	$	79.0
Long-term financing receivables, gross	$	198.6
Allowance for credit losses	(4.3)
Long-term financing receivables, net	$	194.3

There was no significant activity in allowance for credit losses during the year ended July 31, 2021. Past due amounts on financing receivables were immaterial as of July 31, 2021. Through July 31, 2020, financing receivables were not significant to our consolidated balance sheet.

Derivative Instruments (Notes)	12 Months Ended
Derivative Instruments (Notes)	Jul. 31, 2021
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Instruments	Derivative Instruments As of July 31, 2021 and 2020, the total notional amount of our outstanding foreign currency forward contracts was $531.9 million and $443.6 million, respectively. Refer to Note 3. Fair Value Measurements for the fair value of our derivative instruments as reported on our consolidated balance sheets as of July 31, 2021. During the years ended July 31, 2021, 2020, and 2019, both unrealized gains and losses recognized in AOCI related to our cash flow hedges and amounts reclassified into earnings were not material. Unrealized gains and losses in AOCI related to our cash flow hedges as of July 31, 2021 and July 31, 2020 were not material.

Acquisitions (Notes)

12 Months Ended

Jul. 31, 2021

Business Combinations [Abstract]

Acquisitions

Fiscal 2021

Bridgecrew Inc.

On March 2, 2021, we completed our acquisition of Bridgecrew Inc. (“Bridgecrew”), a privately-held cloud security company. We expect the acquisition will expand our Prisma Cloud offering to deliver security across the full application lifecycle. The total purchase consideration for the acquisition of Bridgecrew was $156.9 million, which consisted of the following (in millions):


	Amount
Cash	$	155.9

Fair value of replacement awards	1.0
Total	$	156.9

As part of the acquisition, we issued $42.5 million of replacement awards, of which the portion attributable to services performed prior to the acquisition date was allocated to purchase consideration. The remaining fair value was allocated to future services and will be expensed over the remaining service periods as share-based compensation.

We have accounted for this transaction as a business combination and allocated the purchase consideration to assets acquired and liabilities assumed based on preliminary estimated fair values, as presented in the following table (in millions):


	Amount
Goodwill	$	129.6
Identified intangible assets	21.6
Cash	9.0
Net liabilities assumed	(3.3)
Total	$	156.9

Goodwill generated from this business combination is primarily attributable to the assembled workforce and expected post-acquisition synergies from integrating Bridgecrew technology into our platforms. The goodwill is not deductible for income tax purposes.

The following table presents details of the identified intangible asset acquired (in millions, except years):


	Fair Value		Estimated Useful Life
Developed technology	$	21.6	6 years

Expanse Inc.

On December 15, 2020, we completed our acquisition of Expanse Inc. (“Expanse”), a privately-held company specializing in attack surface management. We expect the acquisition will enrich our Cortex offerings and provide organizations an integrated view of the enterprise to combine external, internal, and threat data. The total purchase consideration for the acquisition of Expanse was $797.2 million, which consisted of the following (in millions):


	Amount
Cash	$	434.9
Common stock (1.1 million shares)	340.7
Fair value of replacement awards	21.6
Total	$	797.2

As part of the acquisition, we issued replacement equity awards, which included 0.2 million shares of our restricted common stock. The total fair value of the replacement equity awards was $160.0 million, of which the portion attributable to services performed prior to the acquisition date was allocated to purchase consideration. The remaining fair value was allocated to future services and will be expensed over the remaining service periods as share-based compensation.


	Amount
Goodwill	$	598.2
Identified intangible assets	160.3
Cash	51.1
Net liabilities assumed	(12.4)
Total	$	797.2

Goodwill generated from this business combination is primarily attributable to the assembled workforce and expected post-acquisition synergies from integrating Expanse technology into our platforms. The goodwill is not deductible for income tax purposes.

The following table presents details of the identified intangible assets acquired (in millions, except years):


	Fair Value		Estimated Useful Life
Developed technology	$	123.4	6 years
Customer relationships	36.9		10 years
Total	$	160.3

Sinefa Group, Inc.

On November 24, 2020, we completed our acquisition of Sinefa Group, Inc. and its wholly owned subsidiaries (“Sinefa”), a privately-held digital experience monitoring company. We expect the acquisition will extend our Prisma Access offering. The total purchase consideration for the acquisition of Sinefa was $27.0 million, which consisted of the following (in millions):


	Amount
Cash	$	26.9
Fair value of replacement awards	0.1
Total	$	27.0

As part of the acquisition, we issued $11.5 million of replacement equity awards, of which the portion attributable to services performed prior to the acquisition date was allocated to purchase consideration. The remaining fair value was allocated to future services and will be expensed over the remaining service periods as share-based compensation.


	Amount
Goodwill	$	13.7
Identified intangible assets	20.4

Net liabilities assumed	(7.1)
Total	$	27.0

Goodwill generated from this business combination is primarily attributable to the assembled workforce and expected post-acquisition synergies from integrating Sinefa technology into our platforms. The goodwill is deductible for income tax purposes.

The following table presents details of the identified intangible assets acquired (in millions, except years):


	Fair Value		Estimated Useful Life
Developed technology	$	18.6	6 years
Customer relationships	1.8		8 years
Total	$	20.4

The Crypsis Group

On September 17, 2020, we completed our acquisition of The Crypsis Group (“Crypsis”), an incident response, risk management, and digital forensics consulting firm. We expect the acquisition will expand our capabilities and strengthen our Cortex strategy. The total purchase consideration for the acquisition of Crypsis was $227.7 million, which consisted of the following (in millions):


	Amount
Cash	$	225.7
Fair value of replacement awards	2.0
Total	$	227.7

As part of the acquisition, we issued $27.1 million of replacement awards, of which the portion attributable to services performed prior to the acquisition date was allocated to purchase consideration. The remaining fair value was allocated to future services and will be expensed over the remaining service periods as share-based compensation.


	Amount
Goodwill	$	157.6
Identified intangible assets	54.4
Net assets acquired	15.7
Total	$	227.7

Goodwill generated from this business combination is primarily attributable to the assembled workforce and expected post-acquisition synergies from integrating Crypsis technology into our platforms. The goodwill is deductible for income tax purposes.

The following table presents details of the identified intangible assets acquired (in millions, except years):


	Fair Value		Estimated Useful Life
Developed technology	$	6.9	3 years
Customer relationships	47.5		7 years
Total	$	54.4

Fiscal 2020

CloudGenix Inc.

On April 21, 2020, we completed our acquisition of CloudGenix, Inc. (“CloudGenix”), a privately-held company. We believe the acquisition will strengthen our secure access service edge (“SASE”) offering. The total purchase consideration for the acquisition of CloudGenix was $402.7 million, which consisted of the following (in millions):


	Amount
Cash	$	396.1
Fair value of replacement awards	6.6
Total	$	402.7

As part of the acquisition, we issued $30.3 million of replacement awards, of which the portion attributable to services performed prior to the acquisition date was allocated to purchase consideration. The remaining fair value was allocated to future services and will be expensed over the remaining service periods as share-based compensation.

We have accounted for this transaction as a business combination and allocated the purchase consideration to assets acquired and liabilities assumed based on estimated fair values, as presented in the following table (in millions):


	Amount
Goodwill	$	301.2
Identified intangible assets	109.9
Cash	8.3
Net liabilities assumed	(16.7)
Total	$	402.7

Goodwill generated from this business combination is primarily attributable to the assembled workforce and expected post-acquisition synergies from integrating CloudGenix technology into our portfolio. The goodwill is not deductible for income tax purposes.

The following table presents details of the identified intangible assets acquired (in millions, except years):


	Fair Value		Estimated Useful Life
Developed technology	$	67.2	5 years
Customer relationships	42.7		10 years
Total	$	109.9

Aporeto, Inc.

On December 23, 2019, we completed our acquisition of Aporeto, Inc. (“Aporeto”), a privately-held machine identity-based microsegmentation company. We believe the acquisition will strengthen our cloud-native security platform capabilities delivered by Prisma Cloud. The total purchase consideration for the acquisition of Aporeto was $144.1 million, which consisted of the following (in millions):


	Amount
Cash	$	139.8
Fair value of replacement awards	4.3
Total	$	144.1

As part of the acquisition, we issued $16.4 million of replacement awards, of which the portion attributable to services performed prior to the acquisition date was allocated to purchase consideration. The remaining fair value was allocated to future services and will be expensed over the remaining service periods as share-based compensation.


	Amount
Goodwill	$	111.3
Identified intangible assets	23.8
Cash	10.5
Net liabilities assumed	(1.5)
Total	$	144.1

Goodwill generated from this business combination is primarily attributable to the assembled workforce and expected post-acquisition synergies from integrating Aporeto’s technology into our platform. The goodwill is not deductible for income tax purposes.

The following table presents details of the identified intangible assets acquired (in millions, except years):


	Fair Value		Estimated Useful Life
Developed technology	$	20.5	7 years
Customer relationships	3.3		4 years
Total	$	23.8

Zingbox, Inc.

On September 20, 2019, we completed our acquisition of Zingbox, Inc. (“Zingbox”), a privately-held Internet of Things (“IoT”) security company. We believe the acquisition will accelerate our delivery of IoT security through our ML-Powered Next-Generation Firewall and Cortex offerings. The total purchase consideration for the acquisition of Zingbox was $66.4 million in cash.

As part of the acquisition, we issued replacement equity awards with a total fair value of $5.7 million, which will be expensed over the remaining service periods as share-based compensation.


	Amount
Goodwill	$	48.1
Identified intangible assets	20.4
Net liabilities assumed	(2.1)
Total	$	66.4

Goodwill generated from this business combination is primarily attributable to the assembled workforce and expected post-acquisition synergies from integrating Zingbox’s technology into our portfolio. The goodwill is not deductible for income tax purposes.

The following table presents details of the identified intangible assets acquired (in millions, except years):


	Fair Value		Estimated Useful Life
Developed technology	$	18.6	5 years
Customer relationships	1.8		8 years
Total	$	20.4

Fiscal 2019

Twistlock Ltd.

On July 9, 2019, we completed our acquisition of Twistlock Ltd. (“Twistlock”), a privately-held company specializing in container security. The acquisition extends our cloud security strategy with the addition of Twistlock to our Prisma cloud security offerings. The total purchase consideration for the acquisition of Twistlock was $378.1 million, which consisted of the following (in

millions):


	Amount
Cash	$	375.4
Fair value of replacement equity awards	2.7
Total purchase consideration	$	378.1

As part of the acquisition, we issued replacement equity awards, which included 0.1 million shares of our restricted common stock. The total fair value of the replacement equity awards was $51.8 million, of which the portion attributable to services performed prior to the acquisition date was allocated to the purchase consideration. The remaining fair value was allocated to future services and will be expensed over the remaining service periods as share-based compensation.


	Amount
Goodwill	$	300.6
Identified intangible assets	54.1
Cash and cash equivalents	14.0
Net assets acquired	9.4
Total	$	378.1

Goodwill generated from this business combination is primarily attributable to the assembled workforce and expected post-acquisition synergies from integrating Twistlock’s product into our platform. The goodwill is deductible for U.S. income tax purposes.

The following table presents details of the identified intangible assets acquired (in millions, except years):


	Fair Value		Estimated Useful Life
Developed technology	$	51.5	7 years
Customer relationships	2.6		8 years
Total	$	54.1

PureSec Ltd.

On June 12, 2019, we completed our acquisition of PureSec Ltd. (“PureSec”), a privately-held company specializing in cybersecurity solutions for serverless architectures. The acquisition extends our cloud security strategy with the addition of PureSec to our Prisma cloud security offerings. The total purchase consideration for the acquisition of PureSec was $36.8 million, which consisted of the following (in millions):


	Amount
Cash	$	35.9
Fair value of replacement equity awards	0.9
Total purchase consideration	$	36.8

As part of the acquisition, we issued replacement equity awards. The total fair value of the replacement equity awards was $9.1 million, of which the portion attributable to services performed prior to the acquisition date was allocated to the purchase consideration. The remaining fair value was allocated to future services and will be expensed over the remaining service periods as share-based compensation.


	Amount
Goodwill	$	24.4
Identified intangible assets	7.4
Cash	4.0
Net assets acquired	1.0
Total	$	36.8

Goodwill generated from this business combination is primarily attributable to the assembled workforce and expected post-

acquisition synergies from integrating PureSec’s product into our platform. The goodwill is deductible for U.S. income tax purposes.

The following table presents details of the identified intangible assets acquired (in millions, except years):


	Fair Value		Estimated Useful Life
Developed technology	$	7.4	5 years

Demisto, Inc.

On March 28, 2019, we completed our acquisition of Demisto, Inc. (“Demisto”), a privately-held security company specializing in security orchestration, automation and response (“SOAR”). The acquisition expands the functionality of our portfolio with the addition of Demisto’s SOAR product. The total purchase consideration for the acquisition of Demisto was $474.2 million, which consisted of the following (in millions):


	Amount
Cash	$	250.0
Common stock (0.9 million shares)	214.7
Fair value of replacement equity awards	9.5
Total purchase consideration	$	474.2

As part of the acquisition, we issued replacement equity awards, which included 0.3 million shares of our restricted common stock. The total fair value of the replacement equity awards was $105.2 million, of which the portion attributable to services performed prior to the acquisition date was allocated to the purchase consideration. The remaining fair value was allocated to future services and will be expensed over the remaining service periods as share-based compensation.


	Amount
Goodwill	$	387.8
Identified intangible assets	76.3
Cash	25.9
Net liabilities assumed	(15.8)
Total	$	474.2

Goodwill generated from this business combination is primarily attributable to the assembled workforce and expected post-acquisition synergies from integrating Demisto’s product into our portfolio. The goodwill is not deductible for income tax purposes.

The following table presents details of the identified intangible assets acquired (in millions, except years):


	Fair Value		Estimated Useful Life
Developed technology	$	56.6	6 years
Customer relationships	19.7		6 years
Total	$	76.3

RedLock Inc.

On October 12, 2018, we completed our acquisition of RedLock Inc. (“RedLock”), a privately-held cloud security company. The acquisition expands our security capabilities for the public cloud with the addition of RedLock’s cloud security analytics technology. The total purchase consideration for the acquisition of RedLock was $158.2 million, which consisted of $155.0 million in cash paid upon closing and $3.2 million in fair value of unvested equity awards attributable to services performed prior to the acquisition date.

As part of the acquisition, we assumed RedLock equity awards with a total fair value of $57.4 million. Of the total fair value, a portion was allocated to the purchase consideration and the remainder was allocated to future services and will be expensed over the remaining service periods as share-based compensation.


	Amount
Goodwill	$	113.6
Identified intangible assets	54.8
Net liabilities assumed	(10.2)
Total	$	158.2

Goodwill generated from this business combination is primarily attributable to the assembled workforce and expected post-acquisition synergies from integrating RedLock’s technology into our platform. The goodwill is not deductible for income tax purposes.

The following table presents details of the identified intangible assets acquired (in millions, except years):


	Fair Value		Estimated Useful Life
Developed technology	$	48.6	4 years
Customer relationships	5.3		8 years
Trade name and trademarks	0.9		6 months
Total	$	54.8

Additional Acquisition-Related Information

The operating results of the acquired companies are included in our consolidated statements of operations from the respective dates of acquisition. Pro forma results of operations have not been presented because the effects of the acquisitions were not material to our consolidated statements of operations.

Additional information related to our acquisitions completed in fiscal 2021, such as that related to income tax and other contingencies, existing as of the acquisition date but unknown to us may become known during the remainder of the measurement period, not to exceed 12 months from the respective acquisition date, which may result in changes to the amounts and allocations recorded.

Goodwill and Intangible Assets (Notes)

12 Months Ended

Jul. 31, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Intangible Assets

Goodwill

The following table presents details of our goodwill during the year ended July 31, 2021 (in millions):


	Amount
Balance as of July 31, 2020	$	1,812.9
Goodwill acquired	899.1
Measurement period adjustment	(1.9)
Balance as of July 31, 2021	$	2,710.1

Purchased Intangible Assets

The following table presents details of our purchased intangible assets as of July 31, 2021 and July 31, 2020 (in millions):


	July 31,
	2021						2020
	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Intangible assets subject to amortization:
Developed technology	$	596.2	$	(243.8)	$	352.4	$	425.9	$	(146.6)	$	279.3
Customer relationships	172.7		(30.6)		142.1		87.6		(12.4)		75.2
Acquired intellectual property	7.9		(3.8)		4.1		6.3		(3.2)		3.1
Trade name and trademarks	9.4		(9.4)		—		9.4		(9.4)		—
Other	1.8		(1.8)		—		3.1		(2.5)		0.6



Total purchased intangible assets	$	788.0	$	(289.4)	$	498.6	$	532.3	$	(174.1)	$	358.2

We recognized amortization expense of $117.8 million, $77.3 million, and $53.6 million for the years ended July 31, 2021, 2020, and 2019, respectively.

The following table summarizes estimated future amortization expense of our intangible assets as of July 31, 2021 (in millions):


			Fiscal years ending July 31,
	Total		2022		2023		2024		2025		2026		2027 and Thereafter
Future amortization expense	$	498.6	$	125.7	$	99.6	$	89.6	$	75.9	$	54.3	$	53.5

Property and Equipment (Notes)

12 Months Ended

Jul. 31, 2021

Property, Plant and Equipment [Abstract]

Property and Equipment

The following table presents details of our property and equipment, net as of July 31, 2021 and July 31, 2020 (in millions):


	July 31,
	2021		2020
Computers, equipment, and software	$	352.1	$	306.8
Leasehold improvements	231.6		229.5
Land	49.6		49.6
Demonstration units	43.8		43.3
Furniture and fixtures	40.3		39.9
Total property and equipment, gross	717.4		669.1
Less: accumulated depreciation	(399.0)		(321.0)
Total property and equipment, net	$	318.4	$	348.1

We recognized depreciation expense of $94.2 million, $96.0 million, and $86.2 million related to property and equipment during the years ended July 31, 2021, 2020, and 2019, respectively.

Debt (Notes)

12 Months Ended

Jul. 31, 2021

Debt Disclosure [Abstract]

Debt

Convertible Senior Notes

In June 2014, we issued $575.0 million aggregate principal amount of 0.0% Convertible Senior Notes due 2019 (the “2019 Notes”), in July 2018, we issued $1.7 billion aggregate principal amount of 0.75% Convertible Senior Notes due 2023 (the “2023 Notes”) and, in June 2020, we issued $2.0 billion aggregate principal amount of 0.375% Convertible Senior Notes due 2025 (the “2025 Notes,” and together with the 2023 Notes, the “Notes”). The 2019 Notes were converted prior to or settled on the maturity date of July 1, 2019, in accordance with their terms. The 2023 Notes bear interest at a fixed rate of 0.75% per year, payable semi-annually in arrears on January 1 and July 1 of each year, beginning on January 1, 2019. The 2025 Notes bear interest at a fixed rate of 0.375% per year, payable semi-annually in arrears on June 1 and December 1 of each year, beginning on December 1, 2020. Each series of the convertible notes is governed by an indenture between us, as the issuer, and U.S. Bank National Association, as Trustee (individually, each an “Indenture,” and together, the “Indentures”). The Notes of each series are unsecured, unsubordinated obligations and the applicable Indenture governing each series of Notes does not contain any financial covenants or restrictions on the payments of dividends, the incurrence of indebtedness, or the issuance or repurchase of securities by us or any of our subsidiaries. The 2023 Notes and the 2025 Notes mature on July 1, 2023 and June 1, 2025, respectively. We cannot redeem the 2023 Notes prior to maturity. We may redeem for cash all or any portion of the 2025 Notes, at our option, on or after June 5, 2023, and prior to the 31st scheduled trading day immediately preceding the maturity date if the last reported sale price of our common stock has been at least 130% of the conversion price then in effect for at least 20 trading days during any 30 consecutive trading day period ending on and including the trading day preceding the date on which we provide notice of redemption. The redemption will be at a price equal to 100% of the principal amount of the 2025 Notes and adjusted for interest. If we call any or all of the 2025 Notes for redemption, holders may convert such 2025 Notes called for redemption at any time prior to the close of business on the second scheduled trading day immediately preceding the redemption date.

The following table presents details of our Notes (number of shares in millions):


	Conversion Rate per $1,000 Principal	Initial Conversion Price		Convertible Date	Initial Number of Shares

2023 Notes	3.7545	$	266.35	April 1, 2023	6.4
2025 Notes	3.3602	$	297.60	March 1, 2025	6.7

Holders of the Notes may surrender their Notes for conversion at their option at any time prior to the close of business on the business day immediately preceding their respective convertible dates only under the following circumstances:

•during any fiscal quarter commencing after the fiscal quarters ending on October 31, 2018 and October 31, 2020 for the 2023 Notes and the 2025 Notes, respectively (and only during such fiscal quarter), if the last reported sale price of our common stock for at least 20 trading days (whether or not consecutive) during a period of 30 consecutive trading days ending on the last trading day of the immediately preceding fiscal quarter is greater than or equal to 130% of the applicable conversion price for the respective Notes on each applicable trading day (the “sale price condition”);

•during the five business day period after any five consecutive trading day period (the “measurement period”) in which the trading price per $1,000 principal amount of the applicable series of Notes for each trading day of the measurement period was less than 98% of the product of the last reported sale price of our common stock and the applicable conversion rate for the respective Notes on each such trading day; or

•upon the occurrence of specified corporate events.

On or after the respective convertible date, holders may surrender all or any portion of their Notes for conversion at any time prior to the close of business on the second scheduled trading day immediately preceding the applicable maturity date regardless of the foregoing conditions, and such conversions will be settled upon the applicable maturity date. Upon conversion, holders of the Notes of a series will receive cash equal to the aggregate principal amount of the Notes of such series to be converted, and, at our election, cash and/or shares of our common stock for any amounts in excess of the aggregate principal amount of the Notes of such series being converted.

The conversion price will be subject to adjustment in some events. Holders of the Notes of a series who convert their Notes of such series in connection with certain corporate events that constitute a “make-whole fundamental change” under the applicable Indenture are, under certain circumstances, entitled to an increase in the conversion rate for such series of Notes. Additionally, upon the occurrence of a corporate event that constitutes a “fundamental change” under the applicable Indenture, holders of the Notes of such series may require us to repurchase for cash all or a portion of the Notes of such series at a repurchase price equal to 100% of the principal amount of the Notes of such series plus accrued and unpaid interest to, but excluding, the fundamental change repurchase date.

The sale price condition was met for the 2023 Notes during the fiscal quarter ended July 31, 2021, and as a result, holders may convert their 2023 Notes at any time during the fiscal quarter ending October 31, 2021. Accordingly, the net carrying amount of the 2023 Notes was reclassified into current liabilities and the portion of the equity component representing the conversion option was reclassified into temporary equity in our consolidated balance sheet as of July 31, 2021.

The sale price condition was not met for the 2025 Notes during the fiscal quarters ended July 31, 2021 or July 31, 2020, and was not met for the 2023 Notes during the fiscal quarter ended July 31, 2020. Since the 2025 Notes for both periods and the 2023 Notes as of July 31, 2020 were not convertible, the associated net carrying amount was classified as a long-term liability and the equity component was included in additional paid-in capital in our consolidated balance sheets.

During the year ended July 31, 2019, we repaid $575.0 million in aggregate principal amount of the 2019 Notes and issued 2.5 million shares of common stock to the holders of the 2019 Notes for the conversion value in excess of the principal amount. These shares were fully offset by shares received from the corresponding exercise of the associated note hedges.

The following table sets forth the components of the Notes as of July 31, 2021 and July 31, 2020 (in millions):


	July 31, 2021						July 31, 2020
	2023 Notes		2025 Notes		Total		2023 Notes		2025 Notes		Total
Liability component:
Principal	$	1,692.0	$	2,000.0	$	3,692.0	$	1,693.0	$	2,000.0	$	3,693.0
Less: debt discount and debt issuance costs, net of amortization	(134.1)		(331.9)		(466.0)		(200.0)		(408.9)		(608.9)
Net carrying amount	$	1,557.9	$	1,668.1	$	3,226.0	$	1,493.0	$	1,591.1	$	3,084.1

Equity component (including amounts classified as temporary equity)	$	315.0	$	403.0	$	718.0	$	315.0	$	403.0	$	718.0

The total estimated fair value of the Notes was $5.5 billion and $4.1 billion at July 31, 2021 and July 31, 2020, respectively. The fair value was determined based on the closing trading price per $100 of the Notes as of the last day of trading for the period. We consider the fair value of the Notes at July 31, 2021 and July 31, 2020 to be a Level 2 measurement. The fair value of the Notes is primarily affected by the trading price of our common stock and market interest rates. Based on the closing price of our common stock on July 31, 2021, the if-converted values of the 2023 Notes and 2025 Notes exceeded their principal amounts by $754.4 million and $587.8 million, respectively.

The following table sets forth interest expense recognized related to our convertible senior notes (dollars in millions):


	Year Ended July 31, 2021								Year Ended July 31, 2020								Year Ended July 31, 2019
	2023 Notes			2025 Notes			Total		2023 Notes			2025 Notes			Total		2019 Notes			2023 Notes			Total
Contractual interest expense	$	12.7		$	7.5		$	20.2	$	12.7		$	1.1		$	13.8	$	—		$	12.7		$	12.7
Amortization of debt discount	63.5			74.3			137.8		60.9			10.5			71.4		8.7			58.5			67.2
Amortization of debt issuance costs	2.3			2.8			5.1		2.1			0.4			2.5		1.1			1.9			3.0
Total interest expense recognized	$	78.5		$	84.6		$	163.1	$	75.7		$	12.0		$	87.7	$	9.8		$	73.1		$	82.9

Effective interest rate of the liability component	5.2		%	5.4		%			5.2		%	5.4		%			4.8		%	5.2		%

Note Hedges

To minimize the impact of potential economic dilution upon conversion of our convertible senior notes, we entered into separate convertible note hedge transactions (the “2019 Note Hedges,” with respect to the 2019 Notes, the “2023 Note Hedges,” with respect to the 2023 Notes, the “2025 Note Hedges,” with respect to the 2025 Notes and the 2023 Notes Hedgers together with 2025 Note Hedges, the “Note Hedges”) with respect to our common stock concurrent with the issuance of each series of our convertible senior notes. Upon the settlement of the 2019 Notes, we exercised the corresponding portion of our 2019 Note Hedges during the year ended July 31, 2019 and received shares of our common stock that fully offset the shares issued in excess of the principal amount of the converted 2019 Notes. The 2019 Note Hedges expired upon maturity of the 2019 Notes.

The following table presents details of our Note Hedges (in millions):


	Initial Number of Shares	Aggregate Purchase

2023 Note Hedges	6.4	$	332.0
2025 Note Hedges	6.7	$	370.8

The Note Hedges cover shares of our common stock at a strike price per share that corresponds to the initial applicable conversion price of the applicable series of Notes, which are also subject to adjustment, and are exercisable upon conversion of the applicable series of the Notes. The Note Hedges will expire upon maturity of the applicable series of Notes. The Note Hedges are separate transactions and are not part of the terms of the applicable series of the Notes. Holders of the Notes of either series will not have any rights with respect to the Note Hedges. Any shares of our common stock receivable by us under the Note Hedges are

excluded from the calculation of diluted earnings per share as they are antidilutive. The aggregate amounts paid for the Note Hedges are included in additional paid-in capital in our consolidated balance sheets.

Warrants

Separately, but concurrently with the issuance of each series of our convertible senior notes, we entered into transactions whereby we sold warrants (the “2019 Warrants,” with respect to the 2019 Notes, the “2023 Warrants,” with respect to the 2023 Notes, the “2025 Warrants,” with respect to the 2025 Notes, and the 2023 Warrants together with the 2025 Warrants, the “Warrants”) to acquire shares of our common stock, subject to anti-dilution adjustments. During the year ended July 31, 2020, we net settled all 2019 Warrants with 2.0 million shares or $462.0 million in fair value of our common stock. The 2023 Warrants and 2025 Warrants are exercisable beginning October 2023 and September 2025, respectively.

The following table presents details of our Warrants (in millions, except per share data):


	Initial Number of Shares	Strike Price per Share		Aggregate Proceeds

2023 Warrants	6.4	$	417.80	$	145.4
2025 Warrants	6.7	$	408.47	$	202.8

The shares issuable under the Warrants will be included in the calculation of diluted earnings per share when the average market value per share of our common stock for the reporting period exceeds the applicable strike price for such series of Warrants. The Warrants are separate transactions and are not part of either series of Notes or Note Hedges and are not remeasured through earnings each reporting period. Holders of the Notes of either series will not have any rights with respect to the Warrants. The aggregate proceeds received from the sale of the Warrants are included in additional paid-in capital in our consolidated balance sheets.

Revolving Credit Facility

On September 4, 2018, we entered into a credit agreement (the “Credit Agreement”) with certain institutional lenders that provides for a $400.0 million unsecured revolving credit facility (the “Credit Facility”), with an option to increase the amount of the Credit Facility by up to an additional $350.0 million, subject to certain conditions. The Credit Facility matures on the earlier of (i) September 4, 2023 and (ii) the date that is 91 days prior to the stated maturity of our 2023 Notes if (a) any of the 2023 Notes are still outstanding and (b) our unrestricted cash and cash equivalents are less than the then outstanding principal amount of our 2023 Notes plus $400.0 million.

The borrowings under the Credit Facility currently bear interest, at our option, at a base rate plus a spread of 0.00% to 0.75%, or an adjusted LIBO Rate plus a spread of 1.00% to 1.75%, in each case with such spread being determined based on our leverage ratio. We are obligated to pay an ongoing commitment fee on undrawn amounts at a rate of 0.125% to 0.250%, depending on our leverage ratio. Regulatory authorities that oversee financial markets have announced that after the end of 2021, they would no longer compel banks currently reporting information used to set the LIBO Rate to continue to make rate submissions. As a result, it is possible that beginning in 2022, the LIBO Rate will no longer be available as a reference rate. Under the terms of our Credit Facility, in the event of the discontinuance of the LIBO Rate, a mutually agreed-upon alternative benchmark rate will be established to replace the LIBO Rate, which may include the Secured Overnight Financing Rate (“SOFR”). We do not anticipate that the discontinuance of the LIBO Rate will materially impact our liquidity or financial position.

As of July 31, 2021, there were no amounts outstanding, and we were in compliance with all covenants under the Credit Agreement.

Leases (Notes)

12 Months Ended

Jul. 31, 2021

Leases [Abstract]

Leases

We have entered into various non-cancelable operating leases primarily for our facilities with original lease periods expiring through the year ending July 31, 2028, with the most significant leases relating to corporate headquarters in Santa Clara.

In May 2015 and October 2015, we entered into a total of three lease agreements for approximately 941,000 square feet of corporate office space in Santa Clara, California, which serves as our current corporate headquarters. The leases contain rent holiday periods, scheduled rent increases, lease incentives, and renewal options which allow the lease terms to be extended beyond their expiration dates of July 2028 through July 2046. Rental payments under the three lease agreements are approximately $412.0 million over the lease term.

In September 2012, we entered into two lease agreements for a total of approximately 300,000 square feet of space in Santa Clara, California, which served as our previous corporate headquarters through August 2017, when we relocated to our current corporate campus. The leases contain rent holiday periods and two separate five-year options to extend the lease term beyond their expiration dates of July 2023. Rental payments under these lease agreements are approximately $94.3 million over the lease term. In August 2017, we exited our previous corporate headquarter facilities and relocated to our new corporate campus, which resulted in the recognition of a cease-use loss of $39.2 million during the year ended July 31, 2018. Due to changes in market conditions, and the resulting changes to the amount and timing of estimated cash flows from sublease rentals that could be reasonably obtained, we recognized an additional cease-use loss of $7.0 million as general and administrative expense in our consolidated statements of operations during the year ended July 31, 2019. In December 2019, we terminated these leases prior to their expiration date. The early

termination fee is $25.0 million, payable in equal quarterly installments from April 2020 through July 2023. Upon termination, we recorded a decrease of $13.6 million in operating lease liabilities based on the payment schedule of the early termination fee discounted by the incremental borrowing rate for the remaining payment term. We also decreased right-of-use assets by $8.7 million upon surrendering possession of the properties. As a result, during the year ended July 31, 2020, we recorded a gain of $3.1 million net of other related fees of $1.8 million in general and administrative expense in our consolidated statements of operations.

During the years ended July 31, 2021 and July 31, 2020, our net cost for operating leases was $75.2 million and $80.4 million, respectively, primarily consisting of operating lease costs of $59.3 million and $63.5 million, respectively. Our net cost for operating leases also included variable lease costs, short-term lease costs and sublease income in both periods. We recognized rent expense of $43.0 million for the year ended July 31, 2019, prior to our adoption of the new lease guidance.

The following tables present additional information for our operating leases (in millions, except for years and percentages):


	Year Ended July 31,
	2021			2020
Operating cash flows used in payments of operating lease liabilities	$	81.7		$	78.3
Right-of-use assets obtained in exchange for new operating lease liabilities	$	48.6		$	28.4

	July 31, 2021			July 31, 2020
Weighted-average remaining lease term	6.1 years			7.0 years
Weighted-average discount rate	3.8		%	3.9		%

The following table presents maturities of operating lease liabilities as of July 31, 2021 (in millions):


	Amount
Fiscal years ending July 31:
2022	$	78.8
2023	72.6
2024	61.6
2025	58.7
2026	57.4
2027 and thereafter	97.5
Total operating lease payments	426.6
Less: imputed interest	(47.4)
Present value of operating lease liabilities	$	379.2
Current portion of operating lease liabilities(1)	$	65.8
Long-term operating lease liabilities	$	313.4

________________________

(1) Current portion of operating lease liabilities is included in accrued and other liabilities on our consolidated balance sheet.

Commitments and Contingencies (Notes)

12 Months Ended

Jul. 31, 2021

Commitments and Contingencies Disclosure [Abstract]

Commitments and contingencies

Commitments and Contingencies

Manufacturing Purchase Commitments

In order to reduce manufacturing lead times and plan for adequate supply, we enter into agreements with manufacturing partners and component suppliers to procure inventory based on our demand forecasts. We are committed to minimum or fixed purchases through the year ending July 31, 2026. The following table presents details of the aggregate future purchase commitments under these arrangements excluding obligations under contracts that we can cancel without a significant penalty as of July 31, 2021 (in millions):


			Fiscal years ending July 31,
	Total		2022		2023		2024		2025		2026
Manufacturing purchase commitments	$	359.9	$	219.3	$	35.6	$	30.0	$	35.0	$	40.0

Other Purchase Commitments

We have entered into various non-cancelable agreements with certain service providers, under which we are committed to minimum or fixed purchases through the year ending July 31, 2026. The following table presents details of the aggregate future non-cancelable purchase commitments under these agreements as of July 31, 2021 (in millions):


			Fiscal years ending July 31,
	Total		2022		2023		2024		2025		2026
Other purchase commitments	$	1,471.8	$	32.0	$	241.3	$	302.1	$	345.3	$	551.1

Mutual Covenant Not to Sue and Release Agreement

In January 2020, we executed a Mutual Covenant Not to Sue and Release Agreement for $50.0 million to extend an existing covenant not to sue for seven years. As the primary benefit of the arrangement was attributable to future use, the amount was recorded in other assets on our consolidated balance sheets and is amortized to cost of product revenue in our consolidated statements of operations over the estimated period of benefit of seven years.

Litigation

We are subject to legal proceedings, claims, and litigation arising in the ordinary course of business, including intellectual property litigation. Such matters are subject to many uncertainties and outcomes are not predictable with assurance. We accrue for contingencies when we believe that a loss is probable and that we can reasonably estimate the amount of any such loss.

To the extent there is a reasonable possibility that a loss exceeding amounts already recognized may be incurred and the amount of such additional loss would be material, we will either disclose the estimated additional loss or state that such an estimate cannot be made. As of July 31, 2021, we have not recorded any significant accruals for loss contingencies associated with such legal proceedings, determined that an unfavorable outcome is probable or reasonably possible, or determined that the amount or range of any possible loss is reasonably estimable.

Indemnification

Under the indemnification provisions of our standard sales related contracts, we agree to defend our end-customers against third-party claims asserting infringement of certain intellectual property rights, which may include patents, copyrights, trademarks, or trade secrets, and to pay judgments entered on such claims. Our exposure under these indemnification provisions is generally limited to payments made to us for the alleged infringing products over the preceding twelve months under the agreement. However, certain agreements include indemnification provisions that could potentially expose us to losses in excess of these payments. In addition, we indemnify our officers, directors, and certain key employees while they are serving in good faith in their company capacities. To date, we have not recorded any accruals for loss contingencies associated with indemnification claims or determined that an unfavorable outcome is probable or reasonably possible.

Stockholders' Equity (Notes)	12 Months Ended
Stockholders' Equity (Notes)	Jul. 31, 2021
Equity [Abstract]
Stockholders’ Equity	Stockholders’ Equity Share Repurchase Program In August 2016, our board of directors authorized a $500.0 million share repurchase program and in February 2017 authorized a $500.0 million increase to the repurchase program, bringing the total authorization to $1.0 billion (our “original authorization”). This repurchase program expired on December 31, 2018. In February 2019, our board of directors authorized a $1.0 billion share repurchase program and in December 2020 authorized a $700.0 million increase to this share repurchase program, bringing the total authorization to $1.7 billion (our “current authorization”). The expiration date of our current authorization was extended to December 31, 2021, and our repurchase program may be suspended or discontinued at any time. Repurchases may be made at management’s discretion from time to time on the open market, through privately negotiated transactions, transactions structured through investment banking institutions, block purchase techniques, 10b5-1 trading plans, or a combination of the foregoing. During the year ended July 31, 2019, we repurchased and retired 1.9 million shares of our common stock under our original authorization for an aggregate purchase price of $330.0 million and an average price per share of $177.64, including transaction costs. During the years ended July 31, 2021 and 2020, we repurchased and retired 4.0 million shares and 0.9 million shares of our common stock under our current authorization for an aggregate purchase price of $1.2 billion and $198.1 million, and an average price per share of $294.87 and $209.12, respectively, including transaction costs. As of July 31, 2021, we have $323.9 million remaining for future share repurchases under our current repurchase authorization. The total price of the shares repurchased and related transaction costs are reflected as a reduction to common stock and additional paid-in capital on our consolidated balance sheets. Accelerated Stock Repurchase In February 2020, our board of directors approved the repurchase of $1.0 billion of our common stock through an accelerated share repurchase (“ASR”) transaction with a financial institution. This ASR transaction was in addition to our share repurchase program. During the fiscal year ended July 31, 2020, we completed the ASR transaction with an aggregate of 5.2 million shares of our common stock repurchased and retired. The total price of the ASR transaction is reflected as a reduction to common stock and additional paid-in capital on our consolidated balance sheet.

Equity Award Plans (Notes)

12 Months Ended

Jul. 31, 2021

Share-based Payment Arrangement [Abstract]

Equity Award Plans

Share-Based Compensation Plans

2012 Equity Incentive Plan

Our 2012 Equity Incentive Plan (our “2012 Plan”) was adopted by our board of directors and approved by the stockholders on June 5, 2012 and was effective one business day prior to the effectiveness of our registration statement for our initial public offering (“IPO”). Our 2012 Plan replaced our 2005 Equity Incentive Plan (our “2005 Plan”), which terminated upon the completion of our IPO, however, awards that were outstanding upon termination remained outstanding pursuant to their original terms. Our 2012 Plan provides for the granting of stock options, restricted stock award (“RSA”), restricted stock unit (“RSU”), stock appreciation rights, performance shares (“PSAs”), performance-based stock units (“PSUs”) and performance stock options (“PSOs”) to our employees, directors, and consultants.

Awards granted under our 2012 Plan vest over the periods determined by the board of directors, generally three to four years from the date of grant, and our options expire no more than ten years after the date of grant. Since our IPO in 2012, awards granted under our 2012 Plan consist primarily of RSUs. Until vested, RSUs do not have the voting and dividend participation rights of common stock and the shares underlying the awards are not considered issued and outstanding.

We grant awards with performance conditions (PSAs and PSUs) to certain employees, which vest over a period of one to four years from the date of grant. The actual number of PSAs and PSUs earned and eligible to vest is determined based on the level of achievement against revenue growth, pre-established billings and operating margin goals, or pre-defined individual performance targets for the fiscal year.

We have also granted PSOs with both a market condition and a service condition to certain executives. The market condition for PSOs granted in the fiscal years 2018 and 2019 requires the price of our common stock to equal or exceed $297.75, $397.00, $496.25, and $595.50 based on the average closing price for 30 consecutive trading days during the four-, five-, six-, and seven-and-a-half-year periods following the date of grant in fiscal year 2018 and 2019, respectively. The market condition for PSOs granted in the fiscal year 2021 requires the price of our common stock to equal or exceed $397.00, $496.25, $595.50 and $700.00 based on the average closing price for 30 consecutive trading days during the three-, four-, five-, and six-and-a-half-year periods following the date of grant. To the extent that the market condition has been met, one-fourth of the PSOs will vest on the anniversary date of the grant date for such PSOs, subject to continued service. Certain outstanding PSOs may be exercised prior to vesting (“early exercise”). Shares of common stock issued upon early exercise of the PSOs will be restricted and, at our option, subject to repurchase if the option holder ceases to be a service provider. The maximum contractual term of our PSOs ranged from six and a half years to seven and a half years from the date of grant, depending on vesting period. During the fiscal year ended July 31, 2021, 0.4 million shares of our PSOs vested as the first stock price target for our PSOs granted in fiscal years 2018 and 2019 was satisfied and the service condition was met.

We net-share settle equity awards held by certain employees by withholding shares upon vesting to satisfy tax withholding obligations. The shares withheld to satisfy employee tax withholding obligations are returned to our 2012 Plan and will be available for future issuance. Payments for employees’ tax obligations to the tax authorities are recognized as a reduction to additional paid-in capital and reflected as financing activities in our consolidated statements of cash flows.

A total of 21.9 million shares of our common stock are reserved for issuance pursuant to our 2012 Plan as of July 31, 2021. This includes shares that are (i) reserved but unissued under our 2005 Plan on the effective date of our 2012 Plan or (ii) returned to our 2005 Plan as a result of expiration or termination of options. On the first day of each fiscal year, the number of shares in the reserve may be increased by the lesser of (i) 8,000,000 shares, (ii) 4.5% of the outstanding shares of common stock on the last day of our immediately preceding fiscal year, or (iii) such other amount as determined by our board of directors.

2012 Employee Stock Purchase Plan

Our 2012 Employee Stock Purchase Plan was adopted by our board of directors and approved by the stockholders on June 5, 2012, and was effective upon completion of our IPO. On August 29, 2017, we amended and restated our 2012 Employee Stock Purchase Plan (our “2012 ESPP”) to extend the length of our offering periods from 6 to 24 months.

Our 2012 ESPP permits eligible employees to acquire shares of our common stock at 85% of the lower of the fair market value of our common stock on the first trading day of each offering period or on the purchase date. If the fair market value of our common stock on the purchase date is lower than the first trading day of the offering period, the current offering period will be cancelled after purchase and a new 24-month offering period will begin. Under our 2012 ESPP, each 24-month offering period consists of four consecutive 6-month purchase periods, with purchase dates on the first trading day on or after February 28 and August 31 of each year. Participants may purchase shares of common stock through payroll deductions of up to 15% of their eligible compensation, subject to purchase limits of 625 shares per six-month purchase period and $25,000 worth of stock for each calendar year. Shares

purchased under our 2012 ESPP during the fiscal years ended July 31, 2021, 2020 and 2019 were 0.6 million, 0.6 million and 0.5 million, at an average exercise price of $161.07 per share, $146.90 per share and $128.81 per share respectively.

A total of 4.6 million shares of our common stock are available for sale under our 2012 ESPP as of July 31, 2021. On the first day of each fiscal year, the number of shares in the reserve may be increased by the lesser of (i) 2,000,000 shares, (ii) 1% of the outstanding shares of our common stock on the first day of the fiscal year, or (iii) such other amount as determined by our board of directors.

Acquisition-related Activities

Assumed Share-based Compensation Plans

In connection with our acquisitions of Bridgecrew, Expanse, Sinefa and Crypsis during the year ended July 31, 2021, we assumed the Bridgecrew, Inc. 2019 Stock Incentive Plan, the Expanse Holding Company, Inc. Amended and Restated 2012 Stock Incentive Plan, the Sinefa Group, Inc. 2020 Stock Plan, and the Crypsis Group Holdings, LLC 2017 Equity Incentive Plan (together, the “2021 assumed Plans”). In connection with our acquisitions of CloudGenix, Aporeto, and Zingbox during the year ended July 31, 2020, we assumed CloudGenix’s 2013 Equity Incentive Plan, Aporeto’s Amended and Restated 2015 Stock Option and Grant Plan and Zingbox’s Stock Incentive Plan, as amended and restated (together, the “2020 assumed Plans”). In connection with our acquisitions of RedLock, Demisto, and Twistlock during the year ended July 31, 2019, we assumed RedLock’s 2015 Stock Plan, as amended, Demisto’s 2015 Stock Option Plan, as amended, and Twistlock’s 2015 Share Option Plan, as amended and restated (together, the “2019 assumed Plans”). In aggregate, the 2021 assumed Plans, the 2020 assumed Plans and the 2019 assumed plans are referenced as “the Assumed Plans.”

The equity awards assumed in connection with each acquisition were granted from their respective assumed plans. The assumed equity awards will be settled in shares of our common stock and will retain the terms and conditions under which they were originally granted. No additional equity awards will be granted under and forfeited awards will not be returned to the Assumed Plans. Refer to Note 7. Acquisitions for more information on our acquisitions and the related equity awards assumed.

Restricted Stock Issuances

In connection with our acquisitions of Expanse and Sinefa during the year ended July 31, 2021, we issued a total of 0.3 million shares of restricted common stock as replacement equity awards which are subject to additional time-based vesting requirements and continued service by the award holder.

In connection with our acquisition of Zingbox during the year ended July 31, 2020, we issued a total of 0.1 million shares of restricted common stock as replacement equity awards which are subject to additional time-based vesting requirements and continued service by the award holder.

In connection with our acquisitions of RedLock, Demisto, PureSec, and Twistlock during the year ended July 31, 2019, we issued a total of 0.5 million shares of restricted common stock as replacement equity awards which are subject to additional time-based vesting requirements and continued service by the award holder.

Stock Option Activities

The following table summarizes the stock option and PSO activity under our stock plans during the years ended July 31, 2021, 2020, and 2019 (in millions, except per share amounts):


	Stock Options Outstanding						PSOs Outstanding
	Number of Shares	Weighted-Average Exercise Price Per Share		Weighted-Average Remaining Contractual Term (Years)	Aggregate Intrinsic Value		Number of Shares	Weighted-Average Exercise Price Per Share		Weighted-Average Remaining Contractual Term (Years)	Aggregate Intrinsic Value
Balance—July 31, 2018	1.0	$	13.28	3.1	$	199.8	1.2	$	198.50	7.0	$	—
Granted	—	$	—				2.6	$	191.97
Exercised	(0.7)	$	12.61				—	$	—
Forfeited	0.0	$	1.24				(0.1)	$	193.51
Balance—July 31, 2019	0.3	$	14.53	2.2	$	81.4	3.7	$	193.99	6.2	$	120.1

Exercised	(0.2)	$	11.46				—	$	—
Forfeited	—	$	—				(0.9)	$	193.51
Balance—July 31, 2020	0.1	$	19.59	1.5	$	34.2	2.8	$	194.14	5.2	$	170.9
Granted	—	$	—				0.2	$	304.29
Exercised	0.0	$	12.82				—	$	—
Forfeited	0.0	$	7.84				(0.2)	$	304.29
Balance—July 31, 2021	0.1	$	26.20	0.8	$	27.4	2.8	$	194.14	4.2	$	566.8
Exercisable—July 31, 2021	0.1	$	26.20	0.8	$	27.4	2.8	$	194.14	4.2	$	566.8

The weighted-average grant-date fair value of PSOs granted during the years ended July 31, 2021 and 2019 was $82.12 and $59.11, per share, respectively. The intrinsic value of options exercised during the years ended July 31, 2021, 2020, and 2019 was $22.2 million, $50.2 million and $139.5 million, respectively.

RSA and PSA Activities

The following table summarizes the RSA and PSA activity under our stock plans during the years ended July 31, 2021, 2020, and 2019 (in millions, except per share amounts):


	RSAs Outstanding			PSAs Outstanding
	Number of Shares	Weighted- Average Grant-Date Fair Value Per Share		Number of Shares	Weighted- Average Grant-Date Fair Value Per Share
Balance—July 31, 2018	0.2	$	163.14	0.1	$	148.54

Vested	(0.2)	$	166.83	0.0	$	148.54
Forfeited	0.0	$	152.09	0.0	$	148.54
Balance—July 31, 2019	0.0	$	148.54	0.1	$	148.54

Vested	0.0	$	148.54	0.0	$	148.54
Forfeited	0.0	$	148.54	0.0	$	148.54
Balance—July 31, 2020	0.0	$	148.54	0.1	$	148.54

Vested	0.0	$	148.54	(0.1)	$	148.54
Forfeited	0.0	$	148.54	0.0	$	148.54
Balance—July 31, 2021	—	$	—	—	$	—

The aggregate fair value, as of respective vesting dates, of RSAs vested during the years ended July 31, 2021, 2020 and 2019, was $1.6 million, $7.0 million and $41.1 million, respectively. The aggregate fair value, as of the respective vesting dates, of PSAs vested during the years ended July 31, 2021, 2020, and 2019 was $0.8 million, $3.8 million and $4.5 million, respectively.

RSU and PSU Activities

The following table summarizes the RSU and PSU activity under our stock plans during the years ended July 31, 2021, 2020, and 2019 (in millions, except per share amounts):


	RSUs Outstanding			PSUs Outstanding
	Number of Shares	Weighted- Average Grant-Date Fair Value Per Share		Aggregate Intrinsic Value		Number of Shares	Weighted- Average Grant-Date Fair Value Per Share		Aggregate Intrinsic Value
Balance—July 31, 2018	6.5	$	160.70	$	1,291.4	0.2	$	149.73	$	43.7
Granted(1)(2)	3.9	$	210.14			0.2	$	215.64
Vested(3)	(2.7)	$	160.87			(0.1)	$	149.73
Forfeited	(0.8)	$	162.73			0.0	$	155.38
Balance—July 31, 2019	6.9	$	188.16	$	1,554.0	0.3	$	197.86	$	67.0
Granted(1)(2)	3.5	$	211.38			0.4	$	248.55
Vested(3)	(2.8)	$	181.19			(0.1)	$	166.90
Forfeited	(1.0)	$	188.18			0.0	$	175.88
Balance—July 31, 2020	6.6	$	203.30	$	1,688.1	0.6	$	231.42	$	147.2
Granted(1)(2)	4.1	$	297.89			0.8	$	321.45
Vested(3)	(2.9)	$	200.91			(0.1)	$	195.60
Forfeited	(0.9)	$	226.79			0.0	$	235.98
Balance—July 31, 2021	6.9	$	257.56	$	2,760.2	1.3	$	292.93	$	498.4

______________

(1) For PSUs, shares granted represent the aggregate maximum number of shares that may be earned and issued with respect to these awards over their full terms.

(2) Includes 0.4 million RSUs assumed in connection with the acquisitions of Crypsis, Sinefa, Expanse and Bridgecrew, with weighted-average grant-date fair value of $241.43, $297.17, $317.45, $354.66, respectively, for the year ended July 31, 2021 and 0.1 million RSUs assumed in connection with the acquisitions of Zingbox, Aporeto and CloudGenix, with weighted-average grant-date fair value of $208.25, $231.30 and $181.48, respectively, for the year ended July 31, 2020. It also

includes 0.4 million RSUs assumed and 0.1 million replacement RSUs granted in connection with the acquisitions of RedLock, Demisto, PureSec, and Twistlock, with weighted-average grant-date fair values of $218.69 and $224.31 per share, respectively, for the year ended July 31, 2019.

(3) Includes time-based vesting for PSUs.

The aggregate fair value, as of the respective vesting dates, of RSUs vested during the years ended July 31, 2021, 2020, and 2019 was $986.4 million, $615.7 million, and $566.4 million, respectively. The aggregate fair value, as of the respective vesting dates, of PSUs vested during the year ended July 31, 2021, 2020 and 2019 was $20.8 million, $11.9 million and $17.2 million, respectively.

Shares Available for Grant

The following table presents the stock activity and the total number of shares available for grant under our stock plans as of July 31, 2021 (in millions):


			Number of shares
Balance—July 31, 2020			10.5
Authorized			4.7
PSOs, RSUs, and PSUs granted			(5.1)
Options, PSOs, RSAs, PSAs, RSUs, and PSUs forfeited			1.1
Shares withheld for taxes			0.1
Balance—July 31, 2021			11.3

Share-Based Compensation

We record share-based compensation awards based on estimated fair value as of the grant date. The fair value of RSUs, PSUs, RSAs, and PSAs is based on the closing market price of our common stock on the date of grant.

The fair value of PSOs is estimated on the grant date using a Monte Carlo simulation model, which predicts settlement of the options midway between the vesting term and the contractual term. No PSOs were granted during the year ended July 31, 2020. The following table summarizes the assumptions used and the resulting grant-date fair values of our PSOs granted during the years ended July 31, 2021 and 2019:


	Year Ended July 31,
	2021			2019
Volatility	35.9		%	35.6% - 36.5%
Dividend yield	—%			—		%
Risk-free interest rate	0.6		%	3.1% - 3.2%
Weighted-average grant-date fair value per share	$	82.12		$	59.11

The expected volatility is based on a combination of implied volatility from traded options on our common stock and the historical volatility of our common stock. The dividend yield assumption is based on our current expectations about our anticipated dividend policy. The risk-free interest rate is based on the implied yield available on U.S. Treasury zero-coupon issues with terms equal to the contractual terms of each tranche.

The fair value of shares issued under our 2012 ESPP are estimated on the grant date using the Black-Scholes option pricing model. The following table summarizes the assumptions used and the resulting grant-date fair values of our ESPP:


	Year Ended July 31,
	2021		2020		2019
Volatility	34.9% - 42.6%		31.0% - 35.7%		30.0% - 34.5%
Expected term (in years)	0.5 - 2.0		0.5 - 2.0		0.5 - 2.0
Dividend yield	—	%	—	%	—	%
Risk-free interest rate	0.1%		0.9% - 1.9%		2.3% - 2.6%
Grant-date fair value per share	$69.48 - $129.05		$46.75 - $66.47		$55.03 - $87.04

The expected volatility is based on a combination of implied volatility from traded options on our common stock and the historical volatility of our common stock. The expected term represents the term from the first day of the offering period to the purchase dates within each offering period. The dividend yield assumption is based on our expectations about our anticipated dividend

policy. The risk-free interest rate is based on the implied yield available on U.S. Treasury zero-coupon issues with maturities that approximate the expected term.

The following table summarizes share-based compensation included in costs and expenses (in millions):


	Year Ended July 31,
	2021		2020		2019
Cost of product revenue	$	6.2	$	5.7	$	5.6
Cost of subscription and support revenue	93.0		77.7		71.3
Research and development	428.9		274.6		186.8
Sales and marketing	269.9		214.5		221.9
General and administrative	128.9		92.0		102.1
Total share-based compensation	$	926.9	$	664.5	$	587.7

During the year ended July 31, 2021, we accelerated the vesting of certain equity awards in connection with our acquisitions of Bridgecrew, Expanse, Sinefa and Crypsis and recorded $9.8 million, $5.7 million, $9.8 million and $7.1 million, respectively. During the year ended July 31, 2020, we accelerated the vesting of certain equity awards in connection with our acquisitions of Zingbox, Aporeto and CloudGenix and recorded $1.3 million, $4.4 million and $0.3 million, respectively, and during the year ended July 31, 2019, we accelerated the vesting of certain equity awards in connection with our acquisitions of RedLock and Twistlock and recorded $14.2 million and $5.8 million, respectively, of share-based compensation within general and administrative expense.

As of July 31, 2021, total compensation cost related to unvested share-based awards not yet recognized was $2.0 billion. This cost is expected to be amortized over a weighted-average period of approximately 2.6 years. Future grants will increase the amount of compensation expense to be recorded in these periods.

Income Taxes (Notes)

12 Months Ended

Jul. 31, 2021

Income Tax Disclosure [Abstract]

Income Taxes

The following table presents the components of income (loss) before income taxes (in millions):


	Year Ended July 31,
	2021		2020		2019
United States	$	(482.2)	$	(56.1)	$	(198.1)
Foreign	17.2		(175.7)		123.5
Total	$	(465.0)	$	(231.8)	$	(74.6)

The following table summarizes our provision for income taxes (in millions):


	Year Ended July 31,
	2021		2020		2019
Federal:
Current	$	3.3	$	3.8	$	(1.3)
Deferred	(5.9)		(1.3)		(11.3)
State:
Current	1.7		1.3		(0.9)
Deferred	0.1		0.1		(3.0)
Foreign:
Current	41.3		39.2		27.5
Deferred	(6.6)		(7.9)		(3.7)
Total	$	33.9	$	35.2	$	7.3

For the year ended July 31, 2021, our provision for income taxes decreased slightly compared to the year ended July 31, 2020, primarily due to tax benefits from changes in our valuation allowances.

For the year ended July 31, 2020, our provision for income taxes increased compared to the year ended July 31, 2019, primarily due to an increase in foreign income as a result of increased business operations and withholding taxes from an increase in billings in the relevant jurisdictions. We also had a change in our valuation allowance related to acquisitions completed during fiscal 2019.

The following table presents the items accounting for the difference between income taxes computed at the federal statutory income tax rate and our provision for income taxes:


	Year Ended July 31,
	2021		2020		2019

Federal statutory rate	21.0	%	21.0	%	21.0	%
Effect of:
State taxes, net of federal tax benefit	1.3		3.0		7.9
Effects of non-U.S. operations	(3.1)		667.5		89.3
Change in valuation allowance	(40.7)		(714.1)		(196.9)
Effect of U.S. tax law change	—		—		0.6
Share-based compensation	5.0		(5.1)		44.9

Tax credits	9.9		17.9		35.0
Non-deductible expenses	(1.3)		(3.9)		(11.5)
Other, net	0.6		(1.5)		(0.1)
Total	(7.3)	%	(15.2)	%	(9.8)	%

In fiscal 2020, we transferred certain intellectual property rights to a wholly owned United Kingdom subsidiary, primarily to align our legal structure to our evolving operations. The tax benefit from an increase in the tax basis of intellectual property rights resulted in an increase in effects of non-U.S. operations and was fully offset by a full valuation.

The following table presents the components of our deferred tax assets and liabilities as of July 31, 2021 and July 31, 2020 (in millions):


	July 31,
	2021		2020

Deferred tax assets:
Accruals and reserves	$	125.0	$	116.5
Deferred revenue	364.9		272.5
Net operating loss carryforwards	575.9		348.0
Tax credits	230.8		179.6
Share-based compensation	53.9		33.7
Fixed assets and intangible assets	1,789.6		1,458.8
Gross deferred tax assets	3,140.1		2,409.1
Valuation allowance	(2,933.3)		(2,240.4)
Total deferred tax assets	206.8		168.7
Deferred tax liabilities:

Deferred commissions	(165.4)		(130.8)
Other deferred tax liabilities	(32.3)		(28.9)
Total deferred tax liabilities	(197.7)		(159.7)
Net deferred tax assets	$	9.1	$	9.0

Our increase in deferred tax assets relating to net operating losses and fixed assets and intangible assets is largely due to an impact from the United Kingdom tax rate increase from 19% to 25% effective April 1, 2023. As of July 31, 2021, it is not more likely than not that our deferred tax assets will be realizable, and therefore, are offset by a full valuation allowance.

A valuation allowance is provided when it is more likely than not that the deferred tax asset will not be realized. Realization of deferred tax assets is dependent upon future taxable income, if any, the amount and timing of which are uncertain. At such time, if it is determined that it is more likely than not that the deferred tax assets are realizable, the valuation allowance will be adjusted. As of July 31, 2021, we have provided a valuation allowance for our federal, state, United Kingdom and certain other foreign deferred tax assets that we believe will, more likely than not, be unrealizable. The net valuation allowance increased by $0.7 billion from the year

ended July 31, 2020 to the year ended July 31, 2021, primarily due to a change in the United Kingdom tax rate as discussed above and an increase in our operations.

As of July 31, 2021, we had federal, state, and foreign NOL carryforwards of approximately $1.8 billion, $0.9 billion, and $1.1 billion, respectively, as reported on our tax returns, available to reduce future taxable income, if any. If not utilized, our federal and state NOL carryforwards will expire in various amounts at various dates beginning in the years ending July 31, 2034 and July 31, 2022, respectively. Our foreign NOL will carry forward indefinitely.

As of July 31, 2021, we had federal and state research and development tax credit carryforwards of approximately $172.8 million and $144.7 million, respectively, as reported on our tax returns. If not utilized, the federal credit carryforwards will expire in various amounts at various dates beginning in the year ending July 31, 2026. The state credit will carry forward indefinitely.

As of July 31, 2021, we had foreign tax credit carryforwards of $3.6 million as reported on our tax returns. If not utilized, the foreign tax credit carryforwards will expire in various amounts at various dates beginning in the year ending July 31, 2022.

Utilization of the NOL carryforwards and credits may be subject to a substantial annual limitation due to the ownership change limitations provided by the Internal Revenue Code of 1986, as amended, and similar state provisions. The annual limitation may result in the expiration of NOLs and credits before utilization.

As of July 31, 2021, we had $372.9 million of unrecognized tax benefits, $68.7 million of which would affect income tax expense if recognized, after consideration of our valuation allowance in the United States and other assets. As of July 31, 2020, we had $326.4 million of unrecognized tax benefits, $63.9 million of which would affect income tax expense if recognized, after consideration of our valuation allowance in the United States and other assets. As of July 31, 2021, our federal, state, and foreign returns for the tax years 2009 through the current period remain subject to adjustment due to current and future examinations. Fiscal years outside the normal statute of limitation remain open to audit by tax authorities due to tax attributes generated in earlier years, which have been carried forward and may be audited in subsequent years when utilized. We do not expect the amount of unrecognized tax benefits as of July 31, 2021 to change significantly over the next 12 months. We recognize both interest and penalties associated with uncertain tax positions as a component of income tax expense. During the years ended July 31, 2021, 2020, and 2019, we recognized income tax expense related to interest and penalties of $3.5 million, $1.6 million, and $2.3 million, respectively. We had accrued interest and penalties on our consolidated balance sheets related to unrecognized tax benefits of $15.7 million and $12.2 million as of July 31, 2021 and 2020, respectively. The ultimate amount and timing of any future cash settlements cannot be predicted with reasonable certainty.

The following table presents a reconciliation of the beginning and ending amount of our gross unrecognized tax benefits (in millions):


	Year Ended July 31,
	2021		2020		2019
Unrecognized tax benefits at the beginning of the period	$	326.4	$	314.5	$	337.7
Additions for tax positions taken in prior years	26.5		3.2		0.3
Reductions for tax positions taken in prior years	(2.5)		(1.6)		(33.4)
Additions for tax positions taken in the current year	22.5		10.3		9.9
Unrecognized tax benefits at the end of the period	$	372.9	$	326.4	$	314.5

During the year ended July 31, 2021, our additions for tax positions taken in the given year were primarily attributable to uncertain tax positions related to tax credits.

During the year ended July 31, 2020 and July 31, 2019, our additions for tax positions taken in the given year were primarily attributable to intercompany transactions.

As of July 31, 2021, we had no unremitted earnings when evaluating our outside basis difference relating to our U.S. investment in foreign subsidiaries. However, there could be local withholding taxes payable due to various foreign countries if certain lower tier earnings are distributed. Withholding taxes that would be payable upon remittance of these lower tier earnings are not material.

- Definition

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

+ References + Details

Net Loss Per Share (Notes)

12 Months Ended

Jul. 31, 2021

Earnings Per Share [Abstract]

Net Loss Per Share

Net Loss Per Share Basic net loss per share is computed by dividing net loss by basic weighted-average shares outstanding during the period. Diluted net loss per share is computed by dividing net loss by diluted weighted-average shares outstanding, including potentially dilutive securities.

The following table presents the computation of basic and diluted net loss per share of common stock (in millions, except per share data):


	Year Ended July 31,
	2021		2020		2019

Net loss	$	(498.9)	$	(267.0)	$	(81.9)
Weighted-average shares used to compute net loss per share, basic and diluted	96.4		96.9		94.5
Net loss per share, basic and diluted	$	(5.18)	$	(2.76)	$	(0.87)

The following securities were excluded from the computation of diluted net loss per share of common stock for the periods presented as their effect would have been antidilutive (in millions):


	Year Ended July 31,
	2021	2020	2019
Convertible senior notes	13.1	13.1	6.4
Warrants related to the issuance of convertible senior notes	13.1	13.1	11.6
RSUs and PSUs	8.2	7.2	7.2
Options to purchase common stock, including PSOs	2.9	2.9	4.0
RSAs and PSAs	0.3	0.1	0.1
ESPP shares	0.3	0.3	0.2
Total	37.9	36.7	29.5

Other Income, Net (Notes)

12 Months Ended

Jul. 31, 2021

Other Income and Expenses [Abstract]

Other Income, Net

Other Income, NetThe following table sets forth the components of other income, net (in millions):


	Year Ended July 31,
	2021		2020		2019
Interest income	$	8.5	$	41.4	$	69.8
Foreign currency exchange gains (losses), net	(5.4)		(6.7)		(3.5)
Other	(0.7)		1.2		(2.9)
Total other income, net	$	2.4	$	35.9	$	63.4

Employee Benefit Plan (Notes)	12 Months Ended
Employee Benefit Plan (Notes)	Jul. 31, 2021
Retirement Benefits [Abstract]
Employee Benefit Plan	Employee Benefit PlanWe have established a 401(k) tax-deferred savings plan which permits participants to make contributions by salary deduction pursuant to Section 401(k) of the Internal Revenue Code. We make matching contributions based upon the amount of employees’ contributions, subject to certain limitations. Our matching contributions to the plan were immaterial for the years ended July 31, 2021, 2020, and 2019.

Segment Information (Notes)

12 Months Ended

Jul. 31, 2021

Segment Reporting [Abstract]

Segment Information

Segment InformationWe conduct business globally and are primarily managed on a geographic theater basis. Our chief operating decision maker reviews financial information presented on a consolidated basis accompanied by information about revenue by geographic region for purposes of allocating resources and evaluating financial performance. We have one business activity and there are no segment managers who are held accountable for operations, operating results, and plans for levels, components, or types of products or services below the consolidated unit level. Accordingly, we are considered to be in a single reportable segment and operating unit structure.

The following table presents our long-lived assets, which consist of property and equipment, net and operating lease right-of-use assets, by geographic region (in millions):


	Year Ended July 31,
	2021		2020
Long-lived assets:
United States	$	461.1	$	502.3
Israel	61.9		52.1
Other countries	58.3		52.4
Total long-lived assets	$	581.3	$	606.8

Refer to Note 2. Revenue for revenue by geographic theater and revenue for groups of similar products and services for the years ended July 31, 2021, 2020, and 2019.

- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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+ Details

Related Party Transactions (Notes)	12 Months Ended
Related Party Transactions (Notes)	Jul. 31, 2021
Related Party Transactions [Abstract]
Related Party Transactions	Related Party TransactionsCertain members of our board of directors are affiliated with Greylock Partners (“Greylock”), a venture capital firm. Entities affiliated with Greylock owned a portion of the outstanding shares of Demisto immediately prior to completion of our acquisition of Demisto on March 28, 2019 and, as a result, received purchase consideration valued at $85.6 million during the year ended July 31, 2019. Refer to Note 7. Acquisitions for more information on our acquisition of Demisto.

Subsequent Events (Notes)	12 Months Ended
Subsequent Events (Notes)	Jul. 31, 2021
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events Share Repurchase On August 17, 2021, our board of directors authorized a $676.1 million increase to our share repurchase program under the current authorization, bringing the total remaining authorization for future share repurchases to $1.0 billion. Repurchases may be made at management’s discretion from time to time on the open market, through privately negotiated transactions, transactions structured through investment banking institutions, block purchase techniques, 10b5-1 trading plans, or a combination of the foregoing. The repurchase authorization will expire on December 31, 2022, and may be suspended or discontinued at any time. Business Combination On August 11, 2021, we completed our acquisition of Gamma Networks, Inc. (“Gamma”), a privately-held AI powered company, for total consideration of approximately $36 million, subject to adjustment. We expect the acquisition will expand our data loss prevention offerings. We will complete the initial accounting for the acquisition of Gamma, including the allocation of purchase consideration, during our first quarter of fiscal 2022.

Description of Business, Basis of Presentation, Principles of Consolidation, and Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Jul. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of PresentationThe accompanying consolidated financial statements have been prepared in conformity with U.S. generally accepted accounting principles (“GAAP”). The consolidated financial statements include all adjustments necessary for a fair presentation of our annual results. All adjustments are of a normal recurring nature.
Principles of Consolidation	Principles of Consolidation The consolidated financial statements include our accounts and our wholly owned subsidiaries. All significant intercompany balances and transactions have been eliminated in consolidation.
Use of Estimates	Use of Estimates The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Such management estimates include, but are not limited to, the standalone selling price for our products and services, share-based compensation, fair value of assets acquired and liabilities assumed in business combinations, identified intangibles and goodwill, valuation allowance against deferred tax assets, manufacturing partner and supplier liabilities, fair value of debt component of convertible notes, interest rate for operating lease liabilities, deferred contract cost benefit period, and loss contingencies. We base our estimates on historical experience and also on assumptions that we believe are reasonable. Actual results could differ materially from those estimates due to risks and uncertainties, including uncertainty in the current economic environment due to the global impact of COVID-19.
Concentrations	Concentrations Financial instruments that subject us to concentrations of credit risk consist primarily of cash and cash equivalents, investments, derivative contracts, accounts receivable and financing receivables. We invest only in high-quality credit instruments and maintain our cash and cash equivalents and available-for-sale investments in fixed income securities. Management believes that the financial institutions that hold our investments are financially sound and, accordingly, are subject to minimal credit risk. Deposits held with banks may exceed the amount of insurance provided on such deposits. Our derivative contracts expose us to credit risk to the extent that the counterparties may be unable to meet the terms of the arrangement. We mitigate this credit risk by transacting with major financial institutions with high credit ratings and also enter into master netting arrangements, which permit net settlement of transactions with the same counterparty. We are not required to pledge, and are not entitled to receive, cash collateral related to these derivative instruments. We do not enter into derivative contracts for trading or speculative purposes. Our accounts receivable are primarily derived from our distributors in various geographical locations. Our financing receivables are with certain qualified end-customers. We perform ongoing credit evaluations and generally do not require collateral on accounts receivable or financing receivables. As of July 31, 2021, four distributors individually represented 10% or more of our gross accounts receivable, and in the aggregate represented 56.6% of our gross accounts receivable. As of July 31, 2021, four end-customers represented 10% or more of our gross financing receivables, and in aggregate represented 67.0% of our gross financing receivables. For fiscal 2021, three distributors represented 10% or more of our total revenue, representing 33.2%, 12.2%, and 10.6%, respectively. No single end-customer accounted for more than 10% of our total revenue in fiscal 2021, 2020, or 2019. We rely on an electronics manufacturing services provider (“EMS provider”) to assemble most of our products and sole source component suppliers for a certain number of our components.
Comprehensive Loss	Comprehensive LossComprehensive loss is comprised of net loss and other comprehensive income (loss). Our other comprehensive income (loss) includes unrealized gains and losses on available-for-sale investments and unrealized gains and losses on cash flow hedges.
Foreign Currency Transactions	Foreign Currency Transactions The functional currency of our foreign subsidiaries is the U.S. dollar. Monetary assets and liabilities denominated in foreign currencies have been remeasured into U.S. dollars using the exchange rates in effect at the balance sheet dates. Foreign currency remeasurement gains and losses and foreign currency transaction gains and losses are not significant to the financial statements.
Fair Value	Fair Value We define fair value as the price that would be received from selling an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. When determining the fair value measurements for assets and liabilities which are required to be recorded at fair value, we consider the principal or most advantageous market in which to transact and the market-based risk. We apply fair value accounting for all financial assets and liabilities that are recognized or disclosed at fair value in the financial statements on a recurring basis. Goodwill, intangible assets, and other long-lived assets are measured at fair value on a nonrecurring basis, only if impairment is indicated. The carrying amounts reported in the consolidated financial statements approximate the fair value for cash and cash equivalents, accounts receivable, accounts payable, and accrued liabilities, due to their short-term nature.
Cash and Cash Equivalents	Cash, Cash Equivalents, and Investments We consider all highly liquid investments with original maturities of three months or less at the date of purchase to be cash equivalents. Investments not considered cash equivalents, and with maturities of one year or less from the consolidated balance sheet date, are classified as short-term investments. Investments with maturities greater than one year from the consolidated balance sheet date are classified as long-term investments. We classify our investments in marketable debt securities as available-for-sale at the time of purchase. When the fair value of a security is below its amortized cost, the amortized cost will be reduced to its fair value if it is more likely than not that we are required to sell the impaired security before recovery of its amortized cost basis, or we have the intention to sell the security. If neither of these conditions are met, we determine whether the impairment is due to credit losses by comparing the present value of the expected cash flows of the security with its amortized cost basis. The amount of impairment recognized is limited to the excess of the amortized cost over the fair value of the security. An allowance for credit losses for the excess of amortized cost over the expected cash flows is recorded in other income, net in our consolidated statements of operations. Impairment losses that are not credit-related are included in accumulated other comprehensive income (loss) (“AOCI”) in stockholders’ equity.
Investments	Cash, Cash Equivalents, and Investments We consider all highly liquid investments with original maturities of three months or less at the date of purchase to be cash equivalents. Investments not considered cash equivalents, and with maturities of one year or less from the consolidated balance sheet date, are classified as short-term investments. Investments with maturities greater than one year from the consolidated balance sheet date are classified as long-term investments. We classify our investments in marketable debt securities as available-for-sale at the time of purchase. When the fair value of a security is below its amortized cost, the amortized cost will be reduced to its fair value if it is more likely than not that we are required to sell the impaired security before recovery of its amortized cost basis, or we have the intention to sell the security. If neither of these conditions are met, we determine whether the impairment is due to credit losses by comparing the present value of the expected cash flows of the security with its amortized cost basis. The amount of impairment recognized is limited to the excess of the amortized cost over the fair value of the security. An allowance for credit losses for the excess of amortized cost over the expected cash flows is recorded in other income, net in our consolidated statements of operations. Impairment losses that are not credit-related are included in accumulated other comprehensive income (loss) (“AOCI”) in stockholders’ equity.
Accounts Receivable	Accounts ReceivableTrade accounts receivable are recorded at the invoiced amount, net of allowances for credit losses for any potential uncollectible amounts. The allowance for credit losses is based on our assessment of the collectability of accounts. Management regularly reviews the adequacy of the allowance for credit losses on a collective basis by considering the age of each outstanding invoice, each customer’s expected ability to pay and collection history, current market conditions, and reasonable and supportable forecasts of future economic conditions to determine whether the allowance is appropriate. Accounts receivable deemed uncollectible are charged against the allowance for credit losses when identified. For the years ended July 31, 2021 and 2020, the allowance for credit losses activity was not significant.
Financing Receivable	Financing Receivables We provide financing arrangements, primarily loans, for certain qualified end-user customers to purchase our products and services. Payment terms on these financing arrangements are up to five years. We evaluate our allowance for credit losses by assessing the risks and losses inherent in our financing receivables on either an individual or a collective basis. Our assessment considers various factors, including lifetime expected losses determined using customer risk profile, current economic conditions that may affect a customer’s ability to pay, and forward-looking economic considerations. Financing receivables are written off when they are considered uncollectible, and related outstanding balances are reversed and charged against the allowance for credit losses. Short-term financing receivables are included in prepaid expenses and other current assets, and long-term financing receivables are included in other assets on our consolidated balance sheets. For the years ended July 31, 2021 and 2020, the allowance for credit losses activity was not significant. Refer to Note 5. Financing Receivables for additional information.
Derivatives	Derivatives As a global business, we are exposed to currency exchange rate risk. Substantially all of our revenue is transacted in U.S. dollars, however, a portion of our operating expenditures are incurred outside of the United States and are denominated in foreign currencies, making them subject to fluctuations in foreign currency exchange rates. We enter into foreign currency derivative contracts with maturities of 16 months or less, which we designate as cash flow hedges, to manage the foreign currency exchange rate risk associated with these expenditures. Our derivative financial instruments are recorded at fair value, on a gross basis, as either assets or liabilities in our consolidated balance sheets. Gains or losses related to our cash flow hedges are recorded as a component of AOCI in our consolidated balance sheets and are reclassified into the financial statement line item associated with the underlying hedged transaction in our consolidated statements of operations when the underlying hedged transaction is recognized in earnings. If it becomes probable that the hedged transaction will not occur, the cumulative unrealized gain or loss is reclassified immediately from AOCI into the financial statement line item associated with the underlying hedged transaction in our consolidated statements of operations. Gains or losses related to non-designated derivative instruments are recognized in other income, net in our consolidated statements of operations for each period until the instrument matures, is terminated, is re-designated as a qualified cash flow hedge, or is sold. Derivatives designated as cash flow hedges are classified in our consolidated statements of cash flows in the same manner as the underlying hedged transaction, primarily within cash flows from operating activities.
Property and Equipment	Property and Equipment Property and equipment are stated at cost, less accumulated depreciation. Depreciation is computed using the straight-line method over the estimated useful lives of the assets, generally three to ten years. Leasehold improvements are depreciated over the shorter of the estimated useful lives of the improvements or the remaining lease term. Land is not depreciated.
Business Combinations	Business Combinations We include the results of operations of the businesses that we acquire as of the respective dates of acquisition. We allocate the fair value of the purchase price of our acquisitions to the tangible assets acquired, liabilities assumed, and intangible assets acquired, based on their estimated fair values. The excess of the purchase price over the fair values of these identifiable assets and liabilities is recorded as goodwill. Additional information existing as of the acquisition date but unknown to us may become known during the remainder of the measurement period, not to exceed 12 months from the acquisition date, which may result in changes to the amounts and allocations recorded.
Intangible Assets	Intangible Assets Purchased intangible assets with finite lives are carried at cost, less accumulated amortization. Amortization is computed over the estimated useful lives of the respective assets.
Impairment of Goodwill, Intangible Assets, and Other Long-Lived Assets	Impairment of Goodwill, Intangible Assets, and Other Long-Lived Assets Goodwill is evaluated for impairment on an annual basis in the fourth quarter of our fiscal year, and whenever events or changes in circumstances indicate the carrying amount of goodwill may not be recoverable. We have elected to first assess qualitative factors to determine whether it is more likely than not that the fair value of our single reporting unit is less than its carrying amount, including goodwill. If we determine that it is more likely than not that the fair value of our single reporting unit is less than its carrying amount, then the quantitative impairment test will be performed. Under the quantitative impairment test, if the carrying amount of our single reporting unit exceeds its fair value, we will recognize an impairment loss in an amount equal to that excess but limited to the total amount of goodwill. We evaluate events and changes in circumstances that could indicate carrying amounts of purchased intangible assets and other long-lived assets may not be recoverable. When such events or changes in circumstances occur, we assess the recoverability of these assets by determining whether or not the carrying amount will be recovered through undiscounted expected future cash flows. If the total of the future undiscounted cash flows is less than the carrying amount of an asset, we record an impairment loss for the amount by which the carrying amount of the asset exceeds the fair value of the asset.
Manufacturing Partner and Supplier Liabilities	Manufacturing Partner and Supplier LiabilitiesWe outsource most of our manufacturing, repair, and supply chain management operations to our EMS provider and payments to it are a significant portion of our cost of product revenue. Although we could be contractually obligated to purchase manufactured products and components, we generally do not own the manufactured products and components. Product title transfers from our EMS provider to us and immediately to our customers upon shipment. Our EMS provider assembles our products using design specifications, quality assurance programs, and standards that we establish, and it procures components and assembles our products based on our demand forecasts. These forecasts represent our estimates of future demand for our products based upon historical trends and analysis from our sales and product management functions as adjusted for overall market conditions. If the actual component usage and product demand are significantly lower than forecast, we record a liability for manufacturing purchase commitments in excess of our forecasted demand including costs for excess components or for carrying costs incurred by our manufacturing partners and component suppliers.
Convertible Senior Notes	Convertible Senior Notes In accounting for the issuance of our convertible senior notes, we separate the notes into liability and equity components. The carrying amount of the liability component is calculated by measuring the fair value of a similar liability that does not have an associated convertible feature, using a discounted cash flow model with a risk adjusted yield. The carrying amount of the equity component representing the conversion option is determined by deducting the fair value of the liability component from the par value of the notes as a whole. This difference represents a debt discount that is amortized to interest expense using the effective interest method over the term of the notes. The equity component is not remeasured as long as it continues to meet the conditions for equity classification. In accounting for the transaction costs related to the issuance of the notes, we allocate the total amount incurred to the liability and equity components using the same proportions as the proceeds from the notes. Transaction costs attributable to the liability component are netted with the liability component and amortized to interest expense using the effective interest method over the term of the notes. Transaction costs attributable to the equity component are netted with the equity component of the notes in additional paid-in capital in the consolidated balance sheets. When the notes are convertible, the net carrying amount of the notes is classified as a current liability and a portion of the equity component representing the conversion option is reclassified to temporary equity in our consolidated balance sheets. The portion of the equity component classified as temporary equity is measured as the difference between the principal and net carrying amount of the notes, excluding debt issuance costs.
Revenue Recognition	Revenue Recognition Our revenue consists of product revenue and subscription and support revenue. Revenue is recognized when control of promised products, subscriptions and support services are transferred to customers, in an amount that reflects the expected consideration in exchange for those products and services. We determine revenue recognition through the following steps: •Identification of the contract, or contracts, with a customer. •Identification of the performance obligations in the contract. •Determination of the transaction price. •Allocation of the transaction price to the performance obligations in the contract. •Recognition of revenue when, or as, we satisfy a performance obligation. Revenues are reported net of sales taxes. Shipping charges billed to channel partners are included in revenues and related costs are included in cost of revenue. Product Revenue Product revenue is derived primarily from sales of our appliances. Product revenue also includes revenue derived from software licenses of Panorama and the VM-Series. Our appliances and software licenses include a broad set of built-in networking and security features and functionalities. We recognize product revenue at the time of hardware shipment or delivery of software license. Subscription and Support Revenue Subscription and support revenue is derived primarily from sales of our subscription and support offerings. We recognize subscription and support revenue over time as the services are performed. Our contractual subscription and support contracts are typically one to five years. Contracts with Multiple Performance Obligations The majority of our contracts with our customers include various combinations of our products and subscriptions and support. Our appliances and software licenses have significant standalone functionalities and capabilities. Accordingly, these appliances and software licenses are distinct from our subscriptions and support services as the customer can benefit from the product without these services and such services are separately identifiable within the contract. We account for multiple agreements with a single customer as a single contract if the contractual terms and/or substance of those agreements indicate that they may be so closely related that they are, in effect, parts of a single contract. The amount of consideration we expect to receive in exchange for delivering on the contract is allocated to each performance obligation based on its relative standalone selling price. If a contract contains a single performance obligation, no allocation is required. We establish standalone selling price using the prices charged for a deliverable when sold separately. If the standalone selling price is not observable through past transactions, we estimate the standalone selling price based on our pricing model and our go-to-market strategy, which include factors such as type of sales channel (reseller, distributor, or end-customer), the geographies in which our offerings were sold (domestic or international), and offering type (products, subscriptions, or support). Deferred Revenue We record deferred revenue when cash payments are received or due in advance of our performance. Our payment terms typically require payment within 30 to 45 days of the date we issue an invoice. The current portion of deferred revenue represents the amounts that are expected to be recognized as revenue within one year of the consolidated balance sheet date.
Deferred Contract Costs	Deferred Contract Costs We defer contract costs that are recoverable and incremental to obtaining customer sales contracts. Contract costs, which primarily consist of sales commissions, are amortized on a systematic basis that is consistent with the transfer to the customer of the goods or services to which the asset relates. Sales commissions paid for initial contracts are generally not commensurate with the commissions paid for renewal contracts, given the substantive difference in commission rates in proportion to their respective contract values. Sales commissions for initial contracts that are not commensurate are amortized over a benefit period of five years, consistent with the revenue recognition pattern of the performance obligations in the related contracts including expected renewals. The benefit period is determined by taking into consideration contract length, technology life, and other quantitative and qualitative factors. The expected renewals are estimated based on historical renewal trends. Sales commissions for initial contracts that are commensurate and sales commissions for renewal contracts are amortized over the related contractual period in proportion to the revenue recognized.We classify deferred contract costs as short-term or long-term based on when we expect to recognize the expense. The amortization of deferred contract costs is included in sales and marketing expense in our consolidated statements of operations. Deferred contract costs are periodically reviewed for impairment.
Software Development Costs	Software Development Costs Internally developed software includes security software developed to meet our internal needs to provide cloud-based subscription offerings to our end-customers and business software that we customize to meet our specific operational needs. These capitalized costs consist of internal compensation related costs and external direct costs incurred during the application development stage and will be amortized over a useful life of three to five years. As of July 31, 2021 and 2020, we capitalized as other assets on our consolidated balance sheets $114.8 million and $90.1 million in costs, respectively, net of accumulated amortization, for security software developed to meet our internal needs to provide our cloud-based subscription offerings. We recognized amortization expense of $47.8 million, $31.3 million, and $12.9 million related to these capitalized costs as cost of subscription and support revenue in our consolidated statements of operations during the years ended July 31, 2021, 2020, and 2019, respectively. The costs to develop software that is marketed externally have not been capitalized as we believe our current software development process is essentially completed concurrent with the establishment of technological feasibility. As such, all related software development costs are expensed as incurred and included in research and development expense in our consolidated statements of operations.
Share-Based Compensation	Share-Based Compensation Compensation expense related to share-based transactions, including employee and non-employee director awards, is measured and recognized in the financial statements based on fair value on the grant date. We recognize share-based compensation expense for awards with only service conditions on a straight-line basis over the requisite service period of the related award. We recognize share-based compensation expense for awards with market conditions and awards with performance conditions on a straight-line basis over the requisite service period for each separately vesting portion of the award and, for awards with performance conditions, when it is probable that the performance condition will be achieved. We account for forfeitures of all share-based payment awards when they occur.
Leases	Leases We determine if an arrangement is a lease at inception. We evaluate the classification of leases at commencement and, as necessary, at modification. Operating leases are included in operating lease right-of-use assets, accrued and other liabilities, and long-term operating lease liabilities on our consolidated balance sheets. We did not have any material finance leases in any of the periods presented. Operating lease right-of-use assets represent our right to use an underlying asset for the lease term. Operating lease liabilities represent our obligation to make payments arising from the lease. Operating lease right-of-use assets and liabilities are recognized at the present value of the future lease payments at the lease commencement date. The interest rate used to determine the present value of the future lease payments is our incremental borrowing rate, because the interest rates implicit in most of our leases are not readily determinable. Our incremental borrowing rate is estimated to approximate the interest rate on a collateralized basis with similar terms and payments, and in economic environments where the leased asset is located. Operating lease right-of-use assets also include adjustments related to lease incentives, prepaid or accrued rent and initial direct lease costs. Operating lease right-of-use assets are subject to evaluation for impairment or disposal on a basis consistent with other long-lived assets. Our lease terms may include periods under options to extend or terminate the lease when it is reasonably certain that we will exercise that option. We generally use the base, non-cancelable lease term when determining the lease assets and liabilities. Operating lease cost is recognized on a straight-line basis over the lease term. We account for lease and non-lease components as a single lease component and do not recognize right-of-use assets and lease liabilities for leases with a term of 12 months or less. Payments under our lease arrangements are primarily fixed, however, certain lease agreements contain variable payments, which are expensed as incurred and not included in the operating lease right-of-use assets and liabilities. Variable lease payments are primarily comprised of real estate taxes, common area maintenance, and insurance.
Income Taxes	Income Taxes We account for income taxes using the asset and liability method, which requires the recognition of deferred tax assets and liabilities for the expected future tax consequences of events that have been recognized in our financial statements or tax returns. In addition, deferred tax assets are recorded for the future benefit of utilizing net operating losses and research and development credit carryforwards. Valuation allowances are provided when necessary to reduce deferred tax assets to the amount expected to be realized. Significant judgment is required in determining any valuation allowance recorded against deferred tax assets. In assessing the need for a valuation allowance, we consider all available evidence, including past operating results, estimates of future taxable income, and the feasibility of tax planning strategies. In the event that we change our determination as to the amount of deferred tax assets that can be realized, we will adjust our valuation allowance with a corresponding impact to the provision for income taxes in the period in which such determination is made. We apply the authoritative accounting guidance prescribing a threshold and measurement attribute for the financial recognition and measurement of a tax position taken or expected to be taken in a tax return. We recognize liabilities for uncertain tax positions based on a two-step process. The first step is to evaluate the tax position for recognition by determining if the weight of available evidence indicates that it is more likely than not that the position will be sustained on audit, including resolution of related appeals or litigation processes, if any. The second step requires us to estimate and measure the tax benefit as the largest amount that is more likely than not to be realized upon ultimate settlement.
Loss Contingencies	Loss Contingencies We are subject to the possibility of various loss contingencies arising in the ordinary course of business. In determining loss contingencies, we consider the likelihood of loss or impairment of an asset, or the incurrence of a liability, as well as our ability to reasonably estimate the amount of loss. An estimated loss contingency is accrued when it is probable that an asset has been impaired, or a liability has been incurred and the amount of loss can be reasonably estimated. If we determine that a loss is possible and the range of the loss can be reasonably determined, then we disclose the range of the possible loss. We regularly evaluate current information available to us to determine whether an accrual is required, an accrual should be adjusted, or a range of possible loss should be disclosed.
Recent Accounting Pronouncements	Recently Adopted Accounting Pronouncements Credit Losses In June 2016, the Financial Accounting Standards Board (“FASB”) issued new authoritative guidance on the accounting for credit losses on most financial assets and certain financial instruments. The standard replaces the incurred loss model with an expected credit loss model for off-balance sheet credit exposures and financial assets measured at amortized cost, including trade accounts receivables and financing receivables. Credit losses on available-for-sale debt securities are required to be recorded through an allowance rather than as a write-down. We adopted this standard in our first quarter of fiscal 2021 using the modified-retrospective approach. The adoption of this standard did not have a material impact on our consolidated financial statements. Recently Issued Accounting Pronouncements Debt with Conversion Options In August 2020, the FASB issued new authoritative guidance to simplify the accounting for certain financial instruments with characteristics of liabilities and equity, including convertible instruments and contracts on an entity’s own equity. The standard reduces the number of models used to account for convertible instruments and simplifies both the classification of debt on the balance sheet and the earnings per share calculation. We intend to early adopt this standard in our first quarter of fiscal 2022 using the modified-retrospective approach, under which, financial results reported in periods prior to fiscal 2022 will not be adjusted. We expect the adoption of this standard to result in a decrease to accumulated deficit of $266.6 million, a decrease to additional paid-in capital of $711.0 million, and an increase to convertible senior notes, net of $444.4 million. Interest expense recognized in future periods will be reduced as a result of accounting for our convertible debt instrument as a single liability measured at its amortized cost.
Fair Value Measurements	We categorize assets and liabilities recorded or disclosed at fair value on our consolidated balance sheets based upon the level of judgment associated with inputs used to measure their fair value. The categories are as follows: •Level 1—Inputs are unadjusted quoted prices in active markets for identical assets or liabilities. •Level 2—Inputs are quoted prices for similar assets and liabilities in active markets or inputs that are observable for the assets or liabilities, either directly or indirectly through market corroboration, for substantially the full term of the financial instruments. •Level 3—Inputs are unobservable inputs based on our own assumptions used to measure assets and liabilities at fair value. The inputs require significant management judgment or estimation.

Revenue (Tables)

12 Months Ended

Jul. 31, 2021

Revenue from Contract with Customer [Abstract]

Revenue from external customers by geographic areas

The following table presents revenue by geographic theater (in millions):


	Year Ended July 31,
	2021		2020		2019
Revenue:
Americas
United States	$	2,747.8	$	2,157.6	$	1,824.2
Other Americas	189.7		160.4		152.8
Total Americas	2,937.5		2,318.0		1,977.0
Europe, the Middle East, and Africa (“EMEA”)	817.3		671.9		568.6
Asia Pacific and Japan (“APAC”)	501.3		418.5		354.0
Total revenue	$	4,256.1	$	3,408.4	$	2,899.6

Revenue from external customers by products and services

The following table presents revenue for groups of similar products and services (in millions):


	Year Ended July 31,
	2021		2020		2019
Revenue:
Product	$	1,120.3	$	1,064.2	$	1,096.2
Subscription and support
Subscription	1,898.8		1,405.3		1032.7
Support	1,237.0		938.9		770.7
Total subscription and support	3,135.8		2,344.2		1,803.4
Total revenue	$	4,256.1	$	3,408.4	$	2,899.6

Fair Value Measurements (Tables)

12 Months Ended

Jul. 31, 2021

Fair Value Disclosures [Abstract]

Schedule of fair value of financial assets and liabilities


	July 31, 2021								July 31, 2020
	Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
Cash equivalents:
Money market funds	$	124.2	$	—	$	—	$	124.2	$	1,589.5	$	—	$	—	$	1,589.5
Certificates of deposit	—		150.4		—		150.4		—		—		—		—

Corporate debt securities	—		1.0		—		1.0		—		—		—		—
U.S. government and agency securities	—		116.3		—		116.3		—		342.0		—		342.0
Total cash equivalents	124.2		267.7		—		391.9		1,589.5		342.0		—		1,931.5
Short-term investments:
Certificates of deposit	—		12.4		—		12.4		—		26.9		—		26.9

Corporate debt securities	—		208.9		—		208.9		—		100.2		—		100.2
U.S. government and agency securities	—		762.1		—		762.1		—		645.6		—		645.6
Non-U.S. government and agency securities	—		43.5		—		43.5		—		17.1		—		17.1
Total short-term investments	—		1,026.9		—		1,026.9		—		789.8		—		789.8
Long-term investments:
Certificates of deposit	—		5.0		—		5.0		—		5.0		—		5.0
Corporate debt securities	—		180.7		—		180.7		—		91.7		—		91.7
U.S. government and agency securities	—		674.1		—		674.1		—		447.4		—		447.4
Non-U.S. government and agency securities	—		28.5		—		28.5		—		10.3		—		10.3
Total long-term investments	—		888.3		—		888.3		—		554.4		—		554.4
Prepaid expenses and other current assets:
Foreign currency forward contracts	—		4.1		—		4.1		—		13.6		—		13.6
Total prepaid expenses and other current assets	—		4.1		—		4.1		—		13.6		—		13.6
Other assets:
Foreign currency forward contracts	—		0.1		—		0.1		—		1.4		—		1.4
Total other assets	—		0.1		—		0.1		—		1.4		—		1.4
Total assets measured at fair value	$	124.2	$	2,187.1	$	—	$	2,311.3	$	1,589.5	$	1,701.2	$	—	$	3,290.7

Accrued and other liabilities:
Foreign currency forward contracts	$	—	$	6.4	$	—	$	6.4	$	—	$	—	$	—	$	—
Total accrued and other liabilities	—		6.4		—		6.4		—		—		—		—
Other long-term liabilities:
Foreign currency forward contracts	—		0.5		—		0.5		—		—		—		—
Total other long-term liabilities	—		0.5		—		0.5		—		—		—		—
Total liabilities measured at fair value	$	—	$	6.9	$	—	$	6.9	$	—	$	—	$	—	$	—

Cash Equivalents and Investments (Tables)

12 Months Ended

Jul. 31, 2021

Investments, Debt and Equity Securities [Abstract]

Schedule of available-for-sale debt securities

The following tables summarize the amortized cost, unrealized gains and losses, and fair value of our available-for-sale debt securities as of July 31, 2021 and July 31, 2020 (in millions):


	July 31, 2021
	Amortized Cost		Unrealized Gains		Unrealized Losses		Fair Value
Cash equivalents:
Certificates of deposit	$	150.4	$	—	$	—	$	150.4

Corporate debt securities	1.0		—		—		1.0
U.S. government and agency securities	116.3		—		—		116.3
Total available-for-sale cash equivalents	$	267.7	$	—	$	—	$	267.7

Investments:
Certificates of deposit	$	17.4	$	—	$	—	$	17.4

Corporate debt securities	389.2		0.5		(0.1)		389.6
U.S. government and agency securities	1,435.1		1.1		—		1,436.2
Non-U.S. government and agency securities	72.0		—		—		72.0
Total available-for-sale investments	$	1,913.7	$	1.6	$	(0.1)	$	1,915.2


	July 31, 2020
	Amortized Cost		Unrealized Gains		Unrealized Losses		Fair Value
Cash equivalents:


U.S. government and agency securities	$	342.0	$	—	$	—	$	342.0
Total available-for-sale cash equivalents	$	342.0	$	—	$	—	$	342.0

Investments:
Certificates of deposit	$	31.9	$	—	$	—	$	31.9

Corporate debt securities	190.1		1.8		—		191.9
U.S. government and agency securities	1,090.3		2.8		(0.1)		1,093.0
Non-U.S. government and agent securities	27.4		—		—		27.4
Total available-for-sale investments	$	1,339.7	$	4.6	$	(0.1)	$	1,344.2

Contractual maturities of available-for-sale debt securities

The following table summarizes the amortized cost and fair value of our available-for-sale debt securities as of July 31, 2021, by contractual years-to-maturity (in millions):


	Amortized Cost		Fair Value
Due within one year	$	1,293.3	$	1,294.6
Due between one and three years	888.1		888.3
Total	$	2,181.4	$	2,182.9

Financing Receivables (Tables)

12 Months Ended

Jul. 31, 2021

Receivables [Abstract]

Short- and long-term financing receivables

The following table summarizes our short-term and long-term financing receivables as of July 31, 2021 (in millions):


	Amount
Short-term financing receivables, gross	$	80.0
Allowance for credit losses	(1.0)
Short-term financing receivables, net	$	79.0
Long-term financing receivables, gross	$	198.6
Allowance for credit losses	(4.3)
Long-term financing receivables, net	$	194.3

Acquisitions (Tables)

12 Months Ended

Jul. 31, 2021

Bridgecrew Inc.

Business Acquisition

Schedule of purchase consideration

The total purchase consideration for the acquisition of Bridgecrew was $156.9 million, which consisted of the following (in millions):


	Amount
Cash	$	155.9

Fair value of replacement awards	1.0
Total	$	156.9

Schedule of recognized identified assets acquired and liabilities assumed


	Amount
Goodwill	$	129.6
Identified intangible assets	21.6
Cash	9.0
Net liabilities assumed	(3.3)
Total	$	156.9

Schedule of finite-lived intangible assets acquired as part of business combination

The following table presents details of the identified intangible asset acquired (in millions, except years):


	Fair Value		Estimated Useful Life
Developed technology	$	21.6	6 years

Expanse Inc.

Business Acquisition

Schedule of purchase consideration

The total purchase consideration for the acquisition of Expanse was $797.2 million, which consisted of the following (in millions):


	Amount
Cash	$	434.9
Common stock (1.1 million shares)	340.7
Fair value of replacement awards	21.6
Total	$	797.2

Schedule of recognized identified assets acquired and liabilities assumed


	Amount
Goodwill	$	598.2
Identified intangible assets	160.3
Cash	51.1
Net liabilities assumed	(12.4)
Total	$	797.2

Schedule of finite-lived intangible assets acquired as part of business combination

The following table presents details of the identified intangible assets acquired (in millions, except years):


	Fair Value		Estimated Useful Life
Developed technology	$	123.4	6 years
Customer relationships	36.9		10 years
Total	$	160.3

Sinefa Group, Inc.

Business Acquisition

Schedule of purchase consideration

The total purchase consideration for the acquisition of Sinefa was $27.0 million, which consisted of the following (in millions):


	Amount
Cash	$	26.9
Fair value of replacement awards	0.1
Total	$	27.0

Schedule of recognized identified assets acquired and liabilities assumed


	Amount
Goodwill	$	13.7
Identified intangible assets	20.4

Net liabilities assumed	(7.1)
Total	$	27.0

Schedule of finite-lived intangible assets acquired as part of business combination

The following table presents details of the identified intangible assets acquired (in millions, except years):


	Fair Value		Estimated Useful Life
Developed technology	$	18.6	6 years
Customer relationships	1.8		8 years
Total	$	20.4

The Crypsis Group

Business Acquisition

Schedule of purchase consideration

The total purchase consideration for the acquisition of Crypsis was $227.7 million, which consisted of the following (in millions):


	Amount
Cash	$	225.7
Fair value of replacement awards	2.0
Total	$	227.7

Schedule of recognized identified assets acquired and liabilities assumed


	Amount
Goodwill	$	157.6
Identified intangible assets	54.4
Net assets acquired	15.7
Total	$	227.7

Schedule of finite-lived intangible assets acquired as part of business combination

The following table presents details of the identified intangible assets acquired (in millions, except years):


	Fair Value		Estimated Useful Life
Developed technology	$	6.9	3 years
Customer relationships	47.5		7 years
Total	$	54.4

CloudGenix, Inc.

Business Acquisition

Schedule of purchase consideration

The total purchase consideration for the acquisition of CloudGenix was $402.7 million, which consisted of the following (in millions):


	Amount
Cash	$	396.1
Fair value of replacement awards	6.6
Total	$	402.7

Schedule of recognized identified assets acquired and liabilities assumed


	Amount
Goodwill	$	301.2
Identified intangible assets	109.9
Cash	8.3
Net liabilities assumed	(16.7)
Total	$	402.7

Schedule of finite-lived intangible assets acquired as part of business combination

The following table presents details of the identified intangible assets acquired (in millions, except years):


	Fair Value		Estimated Useful Life
Developed technology	$	67.2	5 years
Customer relationships	42.7		10 years
Total	$	109.9

Aporeto

Business Acquisition

Schedule of purchase consideration

The total purchase consideration for the acquisition of Aporeto was $144.1 million, which consisted of the following (in millions):


	Amount
Cash	$	139.8
Fair value of replacement awards	4.3
Total	$	144.1

Schedule of recognized identified assets acquired and liabilities assumed


	Amount
Goodwill	$	111.3
Identified intangible assets	23.8
Cash	10.5
Net liabilities assumed	(1.5)
Total	$	144.1

Schedule of finite-lived intangible assets acquired as part of business combination

The following table presents details of the identified intangible assets acquired (in millions, except years):


	Fair Value		Estimated Useful Life
Developed technology	$	20.5	7 years
Customer relationships	3.3		4 years
Total	$	23.8

Zingbox, Inc.

Business Acquisition

Schedule of recognized identified assets acquired and liabilities assumed


	Amount
Goodwill	$	48.1
Identified intangible assets	20.4
Net liabilities assumed	(2.1)
Total	$	66.4

Schedule of finite-lived intangible assets acquired as part of business combination

The following table presents details of the identified intangible assets acquired (in millions, except years):


	Fair Value		Estimated Useful Life
Developed technology	$	18.6	5 years
Customer relationships	1.8		8 years
Total	$	20.4

Twistlock Ltd.

Business Acquisition

Schedule of purchase consideration

The total purchase consideration for the acquisition of Twistlock was $378.1 million, which consisted of the following (in millions):


	Amount
Cash	$	375.4
Fair value of replacement equity awards	2.7
Total purchase consideration	$	378.1

Schedule of recognized identified assets acquired and liabilities assumed


	Amount
Goodwill	$	300.6
Identified intangible assets	54.1
Cash and cash equivalents	14.0
Net assets acquired	9.4
Total	$	378.1

Schedule of finite-lived intangible assets acquired as part of business combination

The following table presents details of the identified intangible assets acquired (in millions, except years):


	Fair Value		Estimated Useful Life
Developed technology	$	51.5	7 years
Customer relationships	2.6		8 years
Total	$	54.1

PureSec Ltd.

Business Acquisition

Schedule of purchase consideration

The total purchase consideration for the acquisition of PureSec was $36.8 million, which consisted of the following (in millions):


	Amount
Cash	$	35.9
Fair value of replacement equity awards	0.9
Total purchase consideration	$	36.8

Schedule of recognized identified assets acquired and liabilities assumed


	Amount
Goodwill	$	24.4
Identified intangible assets	7.4
Cash	4.0
Net assets acquired	1.0
Total	$	36.8

Schedule of finite-lived intangible assets acquired as part of business combination

The following table presents details of the identified intangible assets acquired (in millions, except years):


	Fair Value		Estimated Useful Life
Developed technology	$	7.4	5 years

Demisto, Inc.

Business Acquisition

Schedule of purchase consideration

The total purchase consideration for the acquisition of Demisto was $474.2 million, which consisted of the following (in millions):


	Amount
Cash	$	250.0
Common stock (0.9 million shares)	214.7
Fair value of replacement equity awards	9.5
Total purchase consideration	$	474.2

Schedule of recognized identified assets acquired and liabilities assumed


	Amount
Goodwill	$	387.8
Identified intangible assets	76.3
Cash	25.9
Net liabilities assumed	(15.8)
Total	$	474.2

Schedule of finite-lived intangible assets acquired as part of business combination

The following table presents details of the identified intangible assets acquired (in millions, except years):


	Fair Value		Estimated Useful Life
Developed technology	$	56.6	6 years
Customer relationships	19.7		6 years
Total	$	76.3

RedLock, Inc.

Business Acquisition

Schedule of recognized identified assets acquired and liabilities assumed


	Amount
Goodwill	$	113.6
Identified intangible assets	54.8
Net liabilities assumed	(10.2)
Total	$	158.2

Schedule of finite-lived intangible assets acquired as part of business combination

The following table presents details of the identified intangible assets acquired (in millions, except years):


	Fair Value		Estimated Useful Life
Developed technology	$	48.6	4 years
Customer relationships	5.3		8 years
Trade name and trademarks	0.9		6 months
Total	$	54.8

Goodwill and Intangible Assets (Tables)

12 Months Ended

Jul. 31, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of goodwill

The following table presents details of our goodwill during the year ended July 31, 2021 (in millions):


	Amount
Balance as of July 31, 2020	$	1,812.9
Goodwill acquired	899.1
Measurement period adjustment	(1.9)
Balance as of July 31, 2021	$	2,710.1

Schedule of finite-lived intangible assets by major class

The following table presents details of our purchased intangible assets as of July 31, 2021 and July 31, 2020 (in millions):


	July 31,
	2021						2020
	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Intangible assets subject to amortization:
Developed technology	$	596.2	$	(243.8)	$	352.4	$	425.9	$	(146.6)	$	279.3
Customer relationships	172.7		(30.6)		142.1		87.6		(12.4)		75.2
Acquired intellectual property	7.9		(3.8)		4.1		6.3		(3.2)		3.1
Trade name and trademarks	9.4		(9.4)		—		9.4		(9.4)		—
Other	1.8		(1.8)		—		3.1		(2.5)		0.6



Total purchased intangible assets	$	788.0	$	(289.4)	$	498.6	$	532.3	$	(174.1)	$	358.2

Future amortization expense of intangible assets

The following table summarizes estimated future amortization expense of our intangible assets as of July 31, 2021 (in millions):


			Fiscal years ending July 31,
	Total		2022		2023		2024		2025		2026		2027 and Thereafter
Future amortization expense	$	498.6	$	125.7	$	99.6	$	89.6	$	75.9	$	54.3	$	53.5

Property and Equipment (Tables)

12 Months Ended

Jul. 31, 2021

Property, Plant and Equipment [Abstract]

Schedule of property and equipment

The following table presents details of our property and equipment, net as of July 31, 2021 and July 31, 2020 (in millions):


	July 31,
	2021		2020
Computers, equipment, and software	$	352.1	$	306.8
Leasehold improvements	231.6		229.5
Land	49.6		49.6
Demonstration units	43.8		43.3
Furniture and fixtures	40.3		39.9
Total property and equipment, gross	717.4		669.1
Less: accumulated depreciation	(399.0)		(321.0)
Total property and equipment, net	$	318.4	$	348.1

Debt (Tables)

12 Months Ended

Jul. 31, 2021

Debt Disclosure [Abstract]

Convertible senior notes details

The following table presents details of our Notes (number of shares in millions):


	Conversion Rate per $1,000 Principal	Initial Conversion Price		Convertible Date	Initial Number of Shares

2023 Notes	3.7545	$	266.35	April 1, 2023	6.4
2025 Notes	3.3602	$	297.60	March 1, 2025	6.7

Components of convertible senior notes

The following table sets forth the components of the Notes as of July 31, 2021 and July 31, 2020 (in millions):


	July 31, 2021						July 31, 2020
	2023 Notes		2025 Notes		Total		2023 Notes		2025 Notes		Total
Liability component:
Principal	$	1,692.0	$	2,000.0	$	3,692.0	$	1,693.0	$	2,000.0	$	3,693.0
Less: debt discount and debt issuance costs, net of amortization	(134.1)		(331.9)		(466.0)		(200.0)		(408.9)		(608.9)
Net carrying amount	$	1,557.9	$	1,668.1	$	3,226.0	$	1,493.0	$	1,591.1	$	3,084.1

Equity component (including amounts classified as temporary equity)	$	315.0	$	403.0	$	718.0	$	315.0	$	403.0	$	718.0

Interest expense recognized related to the convertible senior notes

The following table sets forth interest expense recognized related to our convertible senior notes (dollars in millions):


	Year Ended July 31, 2021								Year Ended July 31, 2020								Year Ended July 31, 2019
	2023 Notes			2025 Notes			Total		2023 Notes			2025 Notes			Total		2019 Notes			2023 Notes			Total
Contractual interest expense	$	12.7		$	7.5		$	20.2	$	12.7		$	1.1		$	13.8	$	—		$	12.7		$	12.7
Amortization of debt discount	63.5			74.3			137.8		60.9			10.5			71.4		8.7			58.5			67.2
Amortization of debt issuance costs	2.3			2.8			5.1		2.1			0.4			2.5		1.1			1.9			3.0
Total interest expense recognized	$	78.5		$	84.6		$	163.1	$	75.7		$	12.0		$	87.7	$	9.8		$	73.1		$	82.9

Effective interest rate of the liability component	5.2		%	5.4		%			5.2		%	5.4		%			4.8		%	5.2		%

Note hedges details

The following table presents details of our Note Hedges (in millions):


	Initial Number of Shares	Aggregate Purchase

2023 Note Hedges	6.4	$	332.0
2025 Note Hedges	6.7	$	370.8

Warrants details

The following table presents details of our Warrants (in millions, except per share data):


	Initial Number of Shares	Strike Price per Share		Aggregate Proceeds

2023 Warrants	6.4	$	417.80	$	145.4
2025 Warrants	6.7	$	408.47	$	202.8

Leases (Tables)

12 Months Ended

Jul. 31, 2021

Leases [Abstract]

Schedule of operating leases, additional information

The following tables present additional information for our operating leases (in millions, except for years and percentages):


	Year Ended July 31,
	2021			2020
Operating cash flows used in payments of operating lease liabilities	$	81.7		$	78.3
Right-of-use assets obtained in exchange for new operating lease liabilities	$	48.6		$	28.4

	July 31, 2021			July 31, 2020
Weighted-average remaining lease term	6.1 years			7.0 years
Weighted-average discount rate	3.8		%	3.9		%

Lessee, operating lease, liability, maturity

The following table presents maturities of operating lease liabilities as of July 31, 2021 (in millions):


	Amount
Fiscal years ending July 31:
2022	$	78.8
2023	72.6
2024	61.6
2025	58.7
2026	57.4
2027 and thereafter	97.5
Total operating lease payments	426.6
Less: imputed interest	(47.4)
Present value of operating lease liabilities	$	379.2
Current portion of operating lease liabilities(1)	$	65.8
Long-term operating lease liabilities	$	313.4

________________________

(1) Current portion of operating lease liabilities is included in accrued and other liabilities on our consolidated balance sheet.

Commitments and Contingencies (Tables)

12 Months Ended

Jul. 31, 2021

Manufacturing products and components

Unrecorded Unconditional Purchase Obligation

Schedule of future non-cancelable purchase commitments for cloud and other services

The following table presents details of the aggregate future purchase commitments under these arrangements excluding obligations under contracts that we can cancel without a significant penalty as of July 31, 2021 (in millions):


			Fiscal years ending July 31,
	Total		2022		2023		2024		2025		2026
Manufacturing purchase commitments	$	359.9	$	219.3	$	35.6	$	30.0	$	35.0	$	40.0

Cloud and other services

Unrecorded Unconditional Purchase Obligation

Schedule of future non-cancelable purchase commitments for cloud and other services

The following table presents details of the aggregate future non-cancelable purchase commitments under these agreements as of July 31, 2021 (in millions):


			Fiscal years ending July 31,
	Total		2022		2023		2024		2025		2026
Other purchase commitments	$	1,471.8	$	32.0	$	241.3	$	302.1	$	345.3	$	551.1

Equity Award Plans (Tables)

12 Months Ended

Jul. 31, 2021

Share-based Payment Arrangement [Abstract]

Schedule of stock option activities

The following table summarizes the stock option and PSO activity under our stock plans during the years ended July 31, 2021, 2020, and 2019 (in millions, except per share amounts):


	Stock Options Outstanding						PSOs Outstanding
	Number of Shares	Weighted-Average Exercise Price Per Share		Weighted-Average Remaining Contractual Term (Years)	Aggregate Intrinsic Value		Number of Shares	Weighted-Average Exercise Price Per Share		Weighted-Average Remaining Contractual Term (Years)	Aggregate Intrinsic Value
Balance—July 31, 2018	1.0	$	13.28	3.1	$	199.8	1.2	$	198.50	7.0	$	—
Granted	—	$	—				2.6	$	191.97
Exercised	(0.7)	$	12.61				—	$	—
Forfeited	0.0	$	1.24				(0.1)	$	193.51
Balance—July 31, 2019	0.3	$	14.53	2.2	$	81.4	3.7	$	193.99	6.2	$	120.1

Exercised	(0.2)	$	11.46				—	$	—
Forfeited	—	$	—				(0.9)	$	193.51
Balance—July 31, 2020	0.1	$	19.59	1.5	$	34.2	2.8	$	194.14	5.2	$	170.9
Granted	—	$	—				0.2	$	304.29
Exercised	0.0	$	12.82				—	$	—
Forfeited	0.0	$	7.84				(0.2)	$	304.29
Balance—July 31, 2021	0.1	$	26.20	0.8	$	27.4	2.8	$	194.14	4.2	$	566.8
Exercisable—July 31, 2021	0.1	$	26.20	0.8	$	27.4	2.8	$	194.14	4.2	$	566.8

Schedule of restricted stock award (“RSA”), performance-based stock award (“PSA”), restricted stock unit (”RSU”), and performance stock unit (“PSU”) activities

The following table summarizes the RSA and PSA activity under our stock plans during the years ended July 31, 2021, 2020, and 2019 (in millions, except per share amounts):


	RSAs Outstanding			PSAs Outstanding
	Number of Shares	Weighted- Average Grant-Date Fair Value Per Share		Number of Shares	Weighted- Average Grant-Date Fair Value Per Share
Balance—July 31, 2018	0.2	$	163.14	0.1	$	148.54

Vested	(0.2)	$	166.83	0.0	$	148.54
Forfeited	0.0	$	152.09	0.0	$	148.54
Balance—July 31, 2019	0.0	$	148.54	0.1	$	148.54

Vested	0.0	$	148.54	0.0	$	148.54
Forfeited	0.0	$	148.54	0.0	$	148.54
Balance—July 31, 2020	0.0	$	148.54	0.1	$	148.54

Vested	0.0	$	148.54	(0.1)	$	148.54
Forfeited	0.0	$	148.54	0.0	$	148.54
Balance—July 31, 2021	—	$	—	—	$	—

The following table summarizes the RSU and PSU activity under our stock plans during the years ended July 31, 2021, 2020, and 2019 (in millions, except per share amounts):


	RSUs Outstanding			PSUs Outstanding
	Number of Shares	Weighted- Average Grant-Date Fair Value Per Share		Aggregate Intrinsic Value		Number of Shares	Weighted- Average Grant-Date Fair Value Per Share		Aggregate Intrinsic Value
Balance—July 31, 2018	6.5	$	160.70	$	1,291.4	0.2	$	149.73	$	43.7
Granted(1)(2)	3.9	$	210.14			0.2	$	215.64
Vested(3)	(2.7)	$	160.87			(0.1)	$	149.73
Forfeited	(0.8)	$	162.73			0.0	$	155.38
Balance—July 31, 2019	6.9	$	188.16	$	1,554.0	0.3	$	197.86	$	67.0
Granted(1)(2)	3.5	$	211.38			0.4	$	248.55
Vested(3)	(2.8)	$	181.19			(0.1)	$	166.90
Forfeited	(1.0)	$	188.18			0.0	$	175.88
Balance—July 31, 2020	6.6	$	203.30	$	1,688.1	0.6	$	231.42	$	147.2
Granted(1)(2)	4.1	$	297.89			0.8	$	321.45
Vested(3)	(2.9)	$	200.91			(0.1)	$	195.60
Forfeited	(0.9)	$	226.79			0.0	$	235.98
Balance—July 31, 2021	6.9	$	257.56	$	2,760.2	1.3	$	292.93	$	498.4

______________

(1) For PSUs, shares granted represent the aggregate maximum number of shares that may be earned and issued with respect to these awards over their full terms.

(3) Includes time-based vesting for PSUs.

Schedule of shares available for grant

The following table presents the stock activity and the total number of shares available for grant under our stock plans as of July 31, 2021 (in millions):


			Number of shares
Balance—July 31, 2020			10.5
Authorized			4.7
PSOs, RSUs, and PSUs granted			(5.1)
Options, PSOs, RSAs, PSAs, RSUs, and PSUs forfeited			1.1
Shares withheld for taxes			0.1
Balance—July 31, 2021			11.3

Schedule of assumptions used and resulting grant-date fair values of our PSOs

The following table summarizes the assumptions used and the resulting grant-date fair values of our PSOs granted during the years ended July 31, 2021 and 2019:


	Year Ended July 31,
	2021			2019
Volatility	35.9		%	35.6% - 36.5%
Dividend yield	—%			—		%
Risk-free interest rate	0.6		%	3.1% - 3.2%
Weighted-average grant-date fair value per share	$	82.12		$	59.11

Schedule of assumptions used and resulting grant-date fair values of our ESPP

The following table summarizes the assumptions used and the resulting grant-date fair values of our ESPP:


	Year Ended July 31,
	2021		2020		2019
Volatility	34.9% - 42.6%		31.0% - 35.7%		30.0% - 34.5%
Expected term (in years)	0.5 - 2.0		0.5 - 2.0		0.5 - 2.0
Dividend yield	—	%	—	%	—	%
Risk-free interest rate	0.1%		0.9% - 1.9%		2.3% - 2.6%
Grant-date fair value per share	$69.48 - $129.05		$46.75 - $66.47		$55.03 - $87.04

Schedule of allocation of share-based compensation expense

The following table summarizes share-based compensation included in costs and expenses (in millions):


	Year Ended July 31,
	2021		2020		2019
Cost of product revenue	$	6.2	$	5.7	$	5.6
Cost of subscription and support revenue	93.0		77.7		71.3
Research and development	428.9		274.6		186.8
Sales and marketing	269.9		214.5		221.9
General and administrative	128.9		92.0		102.1
Total share-based compensation	$	926.9	$	664.5	$	587.7

Income Taxes (Tables)

12 Months Ended

Jul. 31, 2021

Income Tax Disclosure [Abstract]

Schedule of components of income (loss) before income tax, domestic and foreign

The following table presents the components of income (loss) before income taxes (in millions):


	Year Ended July 31,
	2021		2020		2019
United States	$	(482.2)	$	(56.1)	$	(198.1)
Foreign	17.2		(175.7)		123.5
Total	$	(465.0)	$	(231.8)	$	(74.6)

Schedule of provision for income taxes

The following table summarizes our provision for income taxes (in millions):


	Year Ended July 31,
	2021		2020		2019
Federal:
Current	$	3.3	$	3.8	$	(1.3)
Deferred	(5.9)		(1.3)		(11.3)
State:
Current	1.7		1.3		(0.9)
Deferred	0.1		0.1		(3.0)
Foreign:
Current	41.3		39.2		27.5
Deferred	(6.6)		(7.9)		(3.7)
Total	$	33.9	$	35.2	$	7.3

Schedule of effective income tax rate reconciliation

The following table presents the items accounting for the difference between income taxes computed at the federal statutory income tax rate and our provision for income taxes:


	Year Ended July 31,
	2021		2020		2019

Federal statutory rate	21.0	%	21.0	%	21.0	%
Effect of:
State taxes, net of federal tax benefit	1.3		3.0		7.9
Effects of non-U.S. operations	(3.1)		667.5		89.3
Change in valuation allowance	(40.7)		(714.1)		(196.9)
Effect of U.S. tax law change	—		—		0.6
Share-based compensation	5.0		(5.1)		44.9

Tax credits	9.9		17.9		35.0
Non-deductible expenses	(1.3)		(3.9)		(11.5)
Other, net	0.6		(1.5)		(0.1)
Total	(7.3)	%	(15.2)	%	(9.8)	%

Schedule of components of deferred tax assets and liabilities

The following table presents the components of our deferred tax assets and liabilities as of July 31, 2021 and July 31, 2020 (in millions):


	July 31,
	2021		2020

Deferred tax assets:
Accruals and reserves	$	125.0	$	116.5
Deferred revenue	364.9		272.5
Net operating loss carryforwards	575.9		348.0
Tax credits	230.8		179.6
Share-based compensation	53.9		33.7
Fixed assets and intangible assets	1,789.6		1,458.8
Gross deferred tax assets	3,140.1		2,409.1
Valuation allowance	(2,933.3)		(2,240.4)
Total deferred tax assets	206.8		168.7
Deferred tax liabilities:

Deferred commissions	(165.4)		(130.8)
Other deferred tax liabilities	(32.3)		(28.9)
Total deferred tax liabilities	(197.7)		(159.7)
Net deferred tax assets	$	9.1	$	9.0

Schedule of gross unrecognized tax benefits roll-forward

The following table presents a reconciliation of the beginning and ending amount of our gross unrecognized tax benefits (in millions):


	Year Ended July 31,
	2021		2020		2019
Unrecognized tax benefits at the beginning of the period	$	326.4	$	314.5	$	337.7
Additions for tax positions taken in prior years	26.5		3.2		0.3
Reductions for tax positions taken in prior years	(2.5)		(1.6)		(33.4)
Additions for tax positions taken in the current year	22.5		10.3		9.9
Unrecognized tax benefits at the end of the period	$	372.9	$	326.4	$	314.5

Net Loss Per Share (Tables)

12 Months Ended

Jul. 31, 2021

Earnings Per Share [Abstract]

Computation of basic and diluted net loss per share of common stock

The following table presents the computation of basic and diluted net loss per share of common stock (in millions, except per share data):


	Year Ended July 31,
	2021		2020		2019

Net loss	$	(498.9)	$	(267.0)	$	(81.9)
Weighted-average shares used to compute net loss per share, basic and diluted	96.4		96.9		94.5
Net loss per share, basic and diluted	$	(5.18)	$	(2.76)	$	(0.87)

Schedule of antidilutive securities excluded from computation of net loss per share

The following securities were excluded from the computation of diluted net loss per share of common stock for the periods presented as their effect would have been antidilutive (in millions):


	Year Ended July 31,
	2021	2020	2019
Convertible senior notes	13.1	13.1	6.4
Warrants related to the issuance of convertible senior notes	13.1	13.1	11.6
RSUs and PSUs	8.2	7.2	7.2
Options to purchase common stock, including PSOs	2.9	2.9	4.0
RSAs and PSAs	0.3	0.1	0.1
ESPP shares	0.3	0.3	0.2
Total	37.9	36.7	29.5

Other Income, Net (Tables)

12 Months Ended

Jul. 31, 2021

Other Income and Expenses [Abstract]

Schedule of components of other income, net

The following table sets forth the components of other income, net (in millions):


	Year Ended July 31,
	2021		2020		2019
Interest income	$	8.5	$	41.4	$	69.8
Foreign currency exchange gains (losses), net	(5.4)		(6.7)		(3.5)
Other	(0.7)		1.2		(2.9)
Total other income, net	$	2.4	$	35.9	$	63.4

Segment Information (Tables)

12 Months Ended

Jul. 31, 2021

Segment Reporting [Abstract]

Long-lived assets by geographic areas

The following table presents our long-lived assets, which consist of property and equipment, net and operating lease right-of-use assets, by geographic region (in millions):


	Year Ended July 31,
	2021		2020
Long-lived assets:
United States	$	461.1	$	502.3
Israel	61.9		52.1
Other countries	58.3		52.4
Total long-lived assets	$	581.3	$	606.8

Description of Business, Basis of Presentation, Principles of Consolidation, and Summary of Significant Accounting Policies (Concentrations) (Details)	12 Months Ended
	Jul. 31, 2021 distributor	Jul. 31, 2021 end-customer	Jul. 31, 2020 end-customer	Jul. 31, 2019 end-customer
Accounts receivable
Concentration Risk
Number of customers \| distributor	4
Financing receivable
Concentration Risk
Number of customers \| end-customer		4
Revenue
Concentration Risk
Number of customers	3	0	0	0
Customer concentration risk \| Accounts receivable \| Accounts receivable
Concentration Risk
Percentage	56.60%
Customer concentration risk \| Financing receivable \| Financing receivable
Concentration Risk
Percentage	67.00%
Customer concentration risk \| Revenue \| Customer A
Concentration Risk
Percentage	33.20%
Customer concentration risk \| Revenue \| Customer B
Concentration Risk
Percentage	12.20%
Customer concentration risk \| Revenue \| Customer C
Concentration Risk
Percentage	10.60%

Description of Business, Basis of Presentation, Principles of Consolidation, and Summary of Significant Accounting Policies (Financing Receivables) (Details)	12 Months Ended
	Jul. 31, 2021
Maximum
Financing receivable
Financing receivable, payment terms	5 years

Description of Business, Basis of Presentation, Principles of Consolidation, and Summary of Significant Accounting Policies (Derivatives) (Details)	12 Months Ended
	Jul. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Maximum contract term of cash flow hedge (in months)	16 months

Description of Business, Basis of Presentation, Principles of Consolidation, and Summary of Significant Accounting Policies (Property and Equipment) (Details)	12 Months Ended
	Jul. 31, 2021
Minimum
Property and Equipment
Property, plant and equipment, useful life	3 years
Maximum
Property and Equipment
Property, plant and equipment, useful life	10 years

Description of Business, Basis of Presentation, Principles of Consolidation, and Summary of Significant Accounting Policies (Impairment of Goodwill, Intangible Assets, and Other Long-Lived Assets) (Details) - USD ($)	12 Months Ended
	Jul. 31, 2021	Jul. 31, 2020	Jul. 31, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Impairment losses	$ 0	$ 0	$ 0

Description of Business, Basis of Presentation, Principles of Consolidation, and Summary of Significant Accounting Policies (Revenue Recognition) (Details)	12 Months Ended
	Jul. 31, 2021
Minimum
Revenue from Contract with Customer
Contract term of subscription and support contracts	1 year
Revenue, payment terms	30 days
Maximum
Revenue from Contract with Customer
Contract term of subscription and support contracts	5 years
Revenue, payment terms	45 days

Description of Business, Basis of Presentation, Principles of Consolidation, and Summary of Significant Accounting Policies (Deferred Contract Costs) (Details)	Jul. 31, 2021
Revenue from Contract with Customer [Abstract]
Deferred contract costs, amortization period	5 years

Description of Business, Basis of Presentation, Principles of Consolidation, and Summary of Significant Accounting Policies (Software Development Costs) (Details) - USD ($) $ in Millions	12 Months Ended
	Jul. 31, 2021	Jul. 31, 2020	Jul. 31, 2019
Minimum
Property and Equipment
Property, plant and equipment, useful life	3 years
Maximum
Property and Equipment
Property, plant and equipment, useful life	10 years
Software development \| Minimum
Property and Equipment
Property, plant and equipment, useful life	3 years
Software development \| Maximum
Property and Equipment
Property, plant and equipment, useful life	5 years
Other assets
Property and Equipment
Capitalized internally developed software, net	$ 114.8	$ 90.1
Cost of subscription and support revenue
Property and Equipment
Capitalized internally developed software, amortization	$ 47.8	$ 31.3	$ 12.9

Description of Business, Basis of Presentation, Principles of Consolidation, and Summary of Significant Accounting Policies (Recently Adopted Accounting Pronouncements) (Details) - USD ($) $ in Millions	Aug. 01, 2021	Jul. 31, 2021	Jul. 31, 2020
New Accounting Pronouncements or Change in Accounting Principle
Decrease to accumulated deficit		$ (1,666.8)	$ (1,167.9)
Accounting Standards Update 2020-06 \| Forecast \| Subsequent event
New Accounting Pronouncements or Change in Accounting Principle
Decrease to accumulated deficit	$ 266.6
Decrease to additional paid in capital	711.0
Increase to convertible senior notes	$ 444.4

Revenue (Disaggregation of Revenue - Geographic Theater) (Details) - USD ($) $ in Millions	12 Months Ended
	Jul. 31, 2021	Jul. 31, 2020	Jul. 31, 2019
Disaggregation of Revenue
Revenue	$ 4,256.1	$ 3,408.4	$ 2,899.6
United States
Disaggregation of Revenue
Revenue	2,747.8	2,157.6	1,824.2
Other Americas
Disaggregation of Revenue
Revenue	189.7	160.4	152.8
Total Americas
Disaggregation of Revenue
Revenue	2,937.5	2,318.0	1,977.0
EMEA
Disaggregation of Revenue
Revenue	817.3	671.9	568.6
APAC
Disaggregation of Revenue
Revenue	$ 501.3	$ 418.5	$ 354.0

- Definition

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 30
-Subparagraph (a)
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 40
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9031-108599

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 41
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9038-108599

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130543-203045

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 42
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9054-108599

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130545-203045

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 924
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 11.L)
-URI http://asc.fasb.org/extlink&oid=6472922&loc=d3e499488-122856

+ Details

Revenue (Disaggregation of Revenue - Type of Revenue) (Details) - USD ($) $ in Millions	12 Months Ended
	Jul. 31, 2021	Jul. 31, 2020	Jul. 31, 2019
Revenue:
Revenue	$ 4,256.1	$ 3,408.4	$ 2,899.6
Product
Revenue:
Revenue	1,120.3	1,064.2	1,096.2
Subscription
Revenue:
Revenue	1,898.8	1,405.3	1,032.7
Support
Revenue:
Revenue	1,237.0	938.9	770.7
Subscription and support
Revenue:
Revenue	$ 3,135.8	$ 2,344.2	$ 1,803.4

- Definition

+ References

+ Details

Revenue (Deferred Revenue) (Details) - USD ($) $ in Billions	12 Months Ended
	Jul. 31, 2021	Jul. 31, 2020
Revenue from Contract with Customer [Abstract]
Revenue recognized from opening deferred revenue balance	$ 2.0	$ 1.5

Revenue (Remaining Performance Obligations) (Details) $ in Billions	Jul. 31, 2021 USD ($)
Revenue from Contract with Customer [Abstract]
Remaining performance obligations	$ 5.9
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2020-08-01
Revenue from Contract with Customer [Abstract]
Remaining performance obligations	$ 3.1
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction
Remaining performance obligations, expected timing of satisfaction, period	12 months

Fair Value Measurements (Details) - Fair value, measurements, recurring - USD ($) $ in Millions	Jul. 31, 2021	Jul. 31, 2020
Fair Value, Assets and Liabilities Measured on Recurring Basis
Cash equivalents	$ 391.9	$ 1,931.5
Short-term investments	1,026.9	789.8
Long-term investments	888.3	554.4
Prepaid expenses and other current assets	4.1	13.6
Other assets	0.1	1.4
Total assets measured at fair value	2,311.3	3,290.7
Accrued and other liabilities	6.4	0.0
Other long-term liabilities	0.5	0.0
Total liabilities measured at fair value	6.9	0.0
Level 1
Fair Value, Assets and Liabilities Measured on Recurring Basis
Cash equivalents	124.2	1,589.5
Short-term investments	0.0	0.0
Long-term investments	0.0	0.0
Prepaid expenses and other current assets	0.0	0.0
Other assets	0.0	0.0
Total assets measured at fair value	124.2	1,589.5
Accrued and other liabilities	0.0	0.0
Other long-term liabilities	0.0	0.0
Total liabilities measured at fair value	0.0	0.0
Level 2
Fair Value, Assets and Liabilities Measured on Recurring Basis
Cash equivalents	267.7	342.0
Short-term investments	1,026.9	789.8
Long-term investments	888.3	554.4
Prepaid expenses and other current assets	4.1	13.6
Other assets	0.1	1.4
Total assets measured at fair value	2,187.1	1,701.2
Accrued and other liabilities	6.4	0.0
Other long-term liabilities	0.5	0.0
Total liabilities measured at fair value	6.9	0.0
Level 3
Fair Value, Assets and Liabilities Measured on Recurring Basis
Cash equivalents	0.0	0.0
Short-term investments	0.0	0.0
Long-term investments	0.0	0.0
Prepaid expenses and other current assets	0.0	0.0
Other assets	0.0	0.0
Total assets measured at fair value	0.0	0.0
Accrued and other liabilities	0.0	0.0
Other long-term liabilities	0.0	0.0
Total liabilities measured at fair value	0.0	0.0
Money market funds
Fair Value, Assets and Liabilities Measured on Recurring Basis
Cash equivalents	124.2	1,589.5
Money market funds \| Level 1
Fair Value, Assets and Liabilities Measured on Recurring Basis
Cash equivalents	124.2	1,589.5
Money market funds \| Level 2
Fair Value, Assets and Liabilities Measured on Recurring Basis
Cash equivalents	0.0	0.0
Money market funds \| Level 3
Fair Value, Assets and Liabilities Measured on Recurring Basis
Cash equivalents	0.0	0.0
Certificates of deposit
Fair Value, Assets and Liabilities Measured on Recurring Basis
Cash equivalents	150.4	0.0
Short-term investments	12.4	26.9
Long-term investments	5.0	5.0
Certificates of deposit \| Level 1
Fair Value, Assets and Liabilities Measured on Recurring Basis
Cash equivalents	0.0	0.0
Short-term investments	0.0	0.0
Long-term investments	0.0	0.0
Certificates of deposit \| Level 2
Fair Value, Assets and Liabilities Measured on Recurring Basis
Cash equivalents	150.4	0.0
Short-term investments	12.4	26.9
Long-term investments	5.0	5.0
Certificates of deposit \| Level 3
Fair Value, Assets and Liabilities Measured on Recurring Basis
Cash equivalents	0.0	0.0
Short-term investments	0.0	0.0
Long-term investments	0.0	0.0
Corporate debt securities
Fair Value, Assets and Liabilities Measured on Recurring Basis
Cash equivalents	1.0	0.0
Short-term investments	208.9	100.2
Long-term investments	180.7	91.7
Corporate debt securities \| Level 1
Fair Value, Assets and Liabilities Measured on Recurring Basis
Cash equivalents	0.0	0.0
Short-term investments	0.0	0.0
Long-term investments	0.0	0.0
Corporate debt securities \| Level 2
Fair Value, Assets and Liabilities Measured on Recurring Basis
Cash equivalents	1.0	0.0
Short-term investments	208.9	100.2
Long-term investments	180.7	91.7
Corporate debt securities \| Level 3
Fair Value, Assets and Liabilities Measured on Recurring Basis
Cash equivalents	0.0	0.0
Short-term investments	0.0	0.0
Long-term investments	0.0	0.0
U.S. government and agency securities
Fair Value, Assets and Liabilities Measured on Recurring Basis
Cash equivalents	116.3	342.0
Short-term investments	762.1	645.6
Long-term investments	674.1	447.4
U.S. government and agency securities \| Level 1
Fair Value, Assets and Liabilities Measured on Recurring Basis
Cash equivalents	0.0	0.0
Short-term investments	0.0	0.0
Long-term investments	0.0	0.0
U.S. government and agency securities \| Level 2
Fair Value, Assets and Liabilities Measured on Recurring Basis
Cash equivalents	116.3	342.0
Short-term investments	762.1	645.6
Long-term investments	674.1	447.4
U.S. government and agency securities \| Level 3
Fair Value, Assets and Liabilities Measured on Recurring Basis
Cash equivalents	0.0	0.0
Short-term investments	0.0	0.0
Long-term investments	0.0	0.0
Non-U.S. government and agency securities
Fair Value, Assets and Liabilities Measured on Recurring Basis
Short-term investments	43.5	17.1
Long-term investments	28.5	10.3
Non-U.S. government and agency securities \| Level 1
Fair Value, Assets and Liabilities Measured on Recurring Basis
Short-term investments	0.0	0.0
Long-term investments	0.0	0.0
Non-U.S. government and agency securities \| Level 2
Fair Value, Assets and Liabilities Measured on Recurring Basis
Short-term investments	43.5	17.1
Long-term investments	28.5	10.3
Non-U.S. government and agency securities \| Level 3
Fair Value, Assets and Liabilities Measured on Recurring Basis
Short-term investments	0.0	0.0
Long-term investments	0.0	0.0
Foreign currency forward contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis
Foreign currency forward contracts assets	4.1	13.6
Other assets	0.1	1.4
Foreign currency forward contracts, current	6.4	0.0
Foreign currency forward contracts, noncurrent	0.5	0.0
Foreign currency forward contracts \| Level 1
Fair Value, Assets and Liabilities Measured on Recurring Basis
Foreign currency forward contracts assets	0.0	0.0
Other assets	0.0	0.0
Foreign currency forward contracts, current	0.0	0.0
Foreign currency forward contracts, noncurrent	0.0	0.0
Foreign currency forward contracts \| Level 2
Fair Value, Assets and Liabilities Measured on Recurring Basis
Foreign currency forward contracts assets	4.1	13.6
Other assets	0.1	1.4
Foreign currency forward contracts, current	6.4	0.0
Foreign currency forward contracts, noncurrent	0.5	0.0
Foreign currency forward contracts \| Level 3
Fair Value, Assets and Liabilities Measured on Recurring Basis
Foreign currency forward contracts assets	0.0	0.0
Other assets	0.0	0.0
Foreign currency forward contracts, current	0.0	0.0
Foreign currency forward contracts, noncurrent	$ 0.0	$ 0.0

Cash Equivalents and Investments (Available-for-Sale Investments) (Details) - USD ($) $ in Millions	Jul. 31, 2021	Jul. 31, 2020
Debt Securities, Available-for-sale
Amortized Cost	$ 2,181.4
Fair Value	2,182.9
Cash equivalents
Debt Securities, Available-for-sale
Amortized Cost	267.7	$ 342.0
Unrealized Gains	0.0	0.0
Unrealized Losses	0.0	0.0
Fair Value	267.7	342.0
Cash equivalents \| Certificates of deposit
Debt Securities, Available-for-sale
Amortized Cost	150.4
Unrealized Gains	0.0
Unrealized Losses	0.0
Fair Value	150.4
Cash equivalents \| Corporate debt securities
Debt Securities, Available-for-sale
Amortized Cost	1.0
Unrealized Gains	0.0
Unrealized Losses	0.0
Fair Value	1.0
Cash equivalents \| U.S. government and agency securities
Debt Securities, Available-for-sale
Amortized Cost	116.3	342.0
Unrealized Gains	0.0	0.0
Unrealized Losses	0.0	0.0
Fair Value	116.3	342.0
Investments
Debt Securities, Available-for-sale
Amortized Cost	1,913.7	1,339.7
Unrealized Gains	1.6	4.6
Unrealized Losses	(0.1)	(0.1)
Fair Value	1,915.2	1,344.2
Investments \| Certificates of deposit
Debt Securities, Available-for-sale
Amortized Cost	17.4	31.9
Unrealized Gains	0.0	0.0
Unrealized Losses	0.0	0.0
Fair Value	17.4	31.9
Investments \| Corporate debt securities
Debt Securities, Available-for-sale
Amortized Cost	389.2	190.1
Unrealized Gains	0.5	1.8
Unrealized Losses	(0.1)	0.0
Fair Value	389.6	191.9
Investments \| U.S. government and agency securities
Debt Securities, Available-for-sale
Amortized Cost	1,435.1	1,090.3
Unrealized Gains	1.1	2.8
Unrealized Losses	0.0	(0.1)
Fair Value	1,436.2	1,093.0
Investments \| Non-U.S. government and agency securities
Debt Securities, Available-for-sale
Amortized Cost	72.0	27.4
Unrealized Gains	0.0	0.0
Unrealized Losses	0.0	0.0
Fair Value	$ 72.0	$ 27.4

Cash Equivalents and Investments (Available-for-Sale Investments, Contractual Maturities) (Details) $ in Millions	Jul. 31, 2021 USD ($)
Amortized Cost
Due within one year	$ 1,293.3
Due between one and three years	888.1
Total amortized cost	2,181.4
Fair Value
Due within one year	1,294.6
Due between one and three years	888.3
Total fair value	$ 2,182.9

Cash Equivalents and Investments (Marketable Equity Securities) (Details) - USD ($)	12 Months Ended
	Jul. 31, 2021	Jul. 31, 2020	Jul. 31, 2019
Marketable Equity Securities [Line Items]
Unrealized Gain (Loss) on Investments	$ 0	$ 0	$ 0
Cash and cash equivalents \| Marketable equity securities \| Money market funds
Marketable Equity Securities [Line Items]
Marketable equity securities	$ 124,200,000	$ 1,600,000,000

Financing Receivables (Details) $ in Millions	Jul. 31, 2021 USD ($)
Receivables [Abstract]
Short-term financing receivables, gross	$ 80.0
Allowance for credit losses	(1.0)
Short-term financing receivables, net	79.0
Long-term financing receivables, gross	198.6
Allowance for credit losses	(4.3)
Long-term financing receivables, net	$ 194.3

Derivative Instruments (Details) - USD ($) $ in Millions	Jul. 31, 2021	Jul. 31, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative, notional amount	$ 531.9	$ 443.6

Acquisitions (Consideration Transferred) (Details) - USD ($) shares in Millions, $ in Millions												12 Months Ended
	Mar. 02, 2021	Dec. 15, 2020	Nov. 24, 2020	Sep. 17, 2020	Apr. 21, 2020	Dec. 23, 2019	Sep. 20, 2019	Jul. 09, 2019	Jun. 12, 2019	Mar. 28, 2019	Oct. 12, 2018	Jul. 31, 2021	Jul. 31, 2020	Jul. 31, 2019
Business Acquisition
Fair value of replacement awards												$ 365.4	$ 11.0	$ 229.5
Bridgecrew Inc.
Business Acquisition
Cash	$ 155.9
Total consideration transferred	156.9
Bridgecrew Inc. \| Replacement equity awards
Business Acquisition
Fair value of replacement awards	$ 1.0
Expanse Inc.
Business Acquisition
Cash		$ 434.9
Total consideration transferred		797.2
Expanse Inc. \| Common stock
Business Acquisition
Common stock (1.1 million shares)		$ 340.7
Expanse Inc. \| Common stock
Business Acquisition
Common stock issued (in shares)		1.1
Expanse Inc. \| Replacement equity awards
Business Acquisition
Fair value of replacement awards		$ 21.6
Sinefa Group, Inc.
Business Acquisition
Cash			$ 26.9
Total consideration transferred			27.0
Sinefa Group, Inc. \| Replacement equity awards
Business Acquisition
Fair value of replacement awards			$ 0.1
The Crypsis Group
Business Acquisition
Cash				$ 225.7
Total consideration transferred				227.7
The Crypsis Group \| Replacement equity awards
Business Acquisition
Fair value of replacement awards				$ 2.0
CloudGenix, Inc.
Business Acquisition
Cash					$ 396.1
Total consideration transferred					402.7
CloudGenix, Inc. \| Replacement equity awards
Business Acquisition
Fair value of replacement awards					$ 6.6
Aporeto, Inc.
Business Acquisition
Cash						$ 139.8
Total consideration transferred						144.1
Aporeto, Inc. \| Replacement equity awards
Business Acquisition
Fair value of replacement awards						$ 4.3
Zingbox, Inc.
Business Acquisition
Total consideration transferred							$ 66.4
Twistlock Ltd.
Business Acquisition
Cash								$ 375.4
Total consideration transferred								378.1
Twistlock Ltd. \| Replacement equity awards
Business Acquisition
Fair value of replacement awards								$ 2.7
PureSec Ltd.
Business Acquisition
Cash									$ 35.9
Total consideration transferred									36.8
PureSec Ltd. \| Replacement equity awards
Business Acquisition
Fair value of replacement awards									$ 0.9
Demisto, Inc.
Business Acquisition
Cash										$ 250.0
Total consideration transferred										474.2
Demisto, Inc. \| Common stock
Business Acquisition
Common stock (1.1 million shares)										$ 214.7
Demisto, Inc. \| Common stock
Business Acquisition
Common stock issued (in shares)										0.9
Demisto, Inc. \| Replacement equity awards
Business Acquisition
Fair value of replacement awards										$ 9.5
RedLock, Inc.
Business Acquisition
Cash											$ 155.0
Fair value of replacement awards											3.2
Total consideration transferred											$ 158.2

Acquisitions (Purchase Price Allocation) (Details) - USD ($) $ in Millions	Jul. 31, 2021	Mar. 02, 2021	Dec. 15, 2020	Nov. 24, 2020	Sep. 17, 2020	Jul. 31, 2020	Apr. 21, 2020	Dec. 23, 2019	Sep. 20, 2019	Jul. 09, 2019	Jun. 12, 2019	Mar. 28, 2019	Oct. 12, 2018
Business Acquisition
Goodwill	$ 2,710.1					$ 1,812.9
Bridgecrew Inc.
Business Acquisition
Goodwill		$ 129.6
Identified intangible assets		21.6
Cash		9.0
Net liabilities assumed		(3.3)
Total		$ 156.9
Expanse Inc.
Business Acquisition
Goodwill			$ 598.2
Identified intangible assets			160.3
Cash			51.1
Net liabilities assumed			(12.4)
Total			$ 797.2
Sinefa Group, Inc.
Business Acquisition
Goodwill				$ 13.7
Identified intangible assets				20.4
Net liabilities assumed				(7.1)
Total				$ 27.0
The Crypsis Group
Business Acquisition
Goodwill					$ 157.6
Identified intangible assets					54.4
Net assets acquired					15.7
Total					$ 227.7
CloudGenix, Inc.
Business Acquisition
Goodwill							$ 301.2
Identified intangible assets							109.9
Cash							8.3
Net liabilities assumed							(16.7)
Total							$ 402.7
Aporeto, Inc.
Business Acquisition
Goodwill								$ 111.3
Identified intangible assets								23.8
Cash								10.5
Net liabilities assumed								(1.5)
Total								$ 144.1
Zingbox, Inc.
Business Acquisition
Goodwill									$ 48.1
Identified intangible assets									20.4
Net liabilities assumed									(2.1)
Total									$ 66.4
Twistlock Ltd.
Business Acquisition
Goodwill										$ 300.6
Identified intangible assets										54.1
Cash										14.0
Net assets acquired										9.4
Total										$ 378.1
PureSec Ltd.
Business Acquisition
Goodwill											$ 24.4
Identified intangible assets											7.4
Cash											4.0
Net assets acquired											1.0
Total											$ 36.8
Demisto, Inc.
Business Acquisition
Goodwill												$ 387.8
Identified intangible assets												76.3
Cash												25.9
Net liabilities assumed												(15.8)
Total												$ 474.2
RedLock, Inc.
Business Acquisition
Goodwill													$ 113.6
Identified intangible assets													54.8
Net liabilities assumed													(10.2)
Total													$ 158.2

Acquisitions (Intangible assets acquired as part of business combination) (Details) - USD ($) $ in Millions	Mar. 02, 2021	Dec. 15, 2020	Nov. 24, 2020	Sep. 17, 2020	Apr. 21, 2020	Dec. 23, 2019	Sep. 20, 2019	Jul. 09, 2019	Jun. 12, 2019	Mar. 28, 2019	Oct. 12, 2018
Bridgecrew Inc. \| Developed technology
Finite-Lived Intangible Assets
Fair value of identified intangible assets acquired	$ 21.6
Estimated useful life (in years)	6 years
Expanse Inc.
Finite-Lived Intangible Assets
Fair value of identified intangible assets acquired		$ 160.3
Expanse Inc. \| Developed technology
Finite-Lived Intangible Assets
Fair value of identified intangible assets acquired		$ 123.4
Estimated useful life (in years)		6 years
Expanse Inc. \| Customer relationships
Finite-Lived Intangible Assets
Fair value of identified intangible assets acquired		$ 36.9
Estimated useful life (in years)		10 years
Sinefa Group, Inc.
Finite-Lived Intangible Assets
Fair value of identified intangible assets acquired			$ 20.4
Sinefa Group, Inc. \| Developed technology
Finite-Lived Intangible Assets
Fair value of identified intangible assets acquired			$ 18.6
Estimated useful life (in years)			6 years
Sinefa Group, Inc. \| Customer relationships
Finite-Lived Intangible Assets
Fair value of identified intangible assets acquired			$ 1.8
Estimated useful life (in years)			8 years
The Crypsis Group
Finite-Lived Intangible Assets
Fair value of identified intangible assets acquired				$ 54.4
The Crypsis Group \| Developed technology
Finite-Lived Intangible Assets
Fair value of identified intangible assets acquired				$ 6.9
Estimated useful life (in years)				3 years
The Crypsis Group \| Customer relationships
Finite-Lived Intangible Assets
Fair value of identified intangible assets acquired				$ 47.5
Estimated useful life (in years)				7 years
CloudGenix, Inc.
Finite-Lived Intangible Assets
Fair value of identified intangible assets acquired					$ 109.9
CloudGenix, Inc. \| Developed technology
Finite-Lived Intangible Assets
Fair value of identified intangible assets acquired					$ 67.2
Estimated useful life (in years)					5 years
CloudGenix, Inc. \| Customer relationships
Finite-Lived Intangible Assets
Fair value of identified intangible assets acquired					$ 42.7
Estimated useful life (in years)					10 years
Aporeto, Inc.
Finite-Lived Intangible Assets
Fair value of identified intangible assets acquired						$ 23.8
Aporeto, Inc. \| Developed technology
Finite-Lived Intangible Assets
Fair value of identified intangible assets acquired						$ 20.5
Estimated useful life (in years)						7 years
Aporeto, Inc. \| Customer relationships
Finite-Lived Intangible Assets
Fair value of identified intangible assets acquired						$ 3.3
Estimated useful life (in years)						4 years
Zingbox, Inc.
Finite-Lived Intangible Assets
Fair value of identified intangible assets acquired							$ 20.4
Zingbox, Inc. \| Developed technology
Finite-Lived Intangible Assets
Fair value of identified intangible assets acquired							$ 18.6
Estimated useful life (in years)							5 years
Zingbox, Inc. \| Customer relationships
Finite-Lived Intangible Assets
Fair value of identified intangible assets acquired							$ 1.8
Estimated useful life (in years)							8 years
Twistlock Ltd.
Finite-Lived Intangible Assets
Fair value of identified intangible assets acquired								$ 54.1
Twistlock Ltd. \| Developed technology
Finite-Lived Intangible Assets
Fair value of identified intangible assets acquired								$ 51.5
Estimated useful life (in years)								7 years
Twistlock Ltd. \| Customer relationships
Finite-Lived Intangible Assets
Fair value of identified intangible assets acquired								$ 2.6
Estimated useful life (in years)								8 years
PureSec Ltd. \| Developed technology
Finite-Lived Intangible Assets
Fair value of identified intangible assets acquired									$ 7.4
Estimated useful life (in years)									5 years
Demisto, Inc.
Finite-Lived Intangible Assets
Fair value of identified intangible assets acquired										$ 76.3
Demisto, Inc. \| Developed technology
Finite-Lived Intangible Assets
Fair value of identified intangible assets acquired										$ 56.6
Estimated useful life (in years)										6 years
Demisto, Inc. \| Customer relationships
Finite-Lived Intangible Assets
Fair value of identified intangible assets acquired										$ 19.7
Estimated useful life (in years)										6 years
RedLock, Inc.
Finite-Lived Intangible Assets
Fair value of identified intangible assets acquired											$ 54.8
RedLock, Inc. \| Developed technology
Finite-Lived Intangible Assets
Fair value of identified intangible assets acquired											$ 48.6
Estimated useful life (in years)											4 years
RedLock, Inc. \| Customer relationships
Finite-Lived Intangible Assets
Fair value of identified intangible assets acquired											$ 5.3
Estimated useful life (in years)											8 years
RedLock, Inc. \| Trade name and trademarks
Finite-Lived Intangible Assets
Fair value of identified intangible assets acquired											$ 0.9
Estimated useful life (in years)											6 months

Acquisitions (Supplementary Information) (Details) - USD ($) shares in Millions, $ in Millions	Mar. 02, 2021	Dec. 15, 2020	Nov. 24, 2020	Sep. 17, 2020	Apr. 21, 2020	Dec. 23, 2019	Sep. 20, 2019	Jul. 09, 2019	Jun. 12, 2019	Mar. 28, 2019	Oct. 12, 2018
Bridgecrew Inc.
Business Acquisition
Business combination, consideration transferred	$ 156.9
Total fair value of replacement equity awards	$ 42.5
Expanse Inc.
Business Acquisition
Business combination, consideration transferred		$ 797.2
Total fair value of replacement equity awards		$ 160.0
Expanse Inc. \| Restricted common stock
Business Acquisition
Common stock issued (in shares)		0.2
Sinefa Group, Inc.
Business Acquisition
Business combination, consideration transferred			$ 27.0
Total fair value of replacement equity awards			$ 11.5
The Crypsis Group
Business Acquisition
Business combination, consideration transferred				$ 227.7
Total fair value of replacement equity awards				$ 27.1
CloudGenix, Inc.
Business Acquisition
Business combination, consideration transferred					$ 402.7
Total fair value of replacement equity awards					$ 30.3
Aporeto, Inc.
Business Acquisition
Business combination, consideration transferred						$ 144.1
Total fair value of replacement equity awards						$ 16.4
Zingbox, Inc.
Business Acquisition
Business combination, consideration transferred							$ 66.4
Total fair value of replacement equity awards							$ 5.7
Twistlock Ltd.
Business Acquisition
Business combination, consideration transferred								$ 378.1
Total fair value of replacement equity awards								$ 51.8
Twistlock Ltd. \| Restricted common stock
Business Acquisition
Common stock issued (in shares)								0.1
PureSec Ltd.
Business Acquisition
Business combination, consideration transferred									$ 36.8
Total fair value of replacement equity awards									$ 9.1
Demisto, Inc.
Business Acquisition
Business combination, consideration transferred										$ 474.2
Total fair value of replacement equity awards										$ 105.2
Demisto, Inc. \| Restricted common stock
Business Acquisition
Common stock issued (in shares)										0.3
RedLock, Inc.
Business Acquisition
Business combination, consideration transferred											$ 158.2
Total fair value of equity awards assumed											$ 57.4

Goodwill and Intangible Assets (Goodwill) (Details) $ in Millions	12 Months Ended
	Jul. 31, 2021 USD ($)
Goodwill
Balance as of July 31, 2020	$ 1,812.9
Goodwill acquired	899.1
Measurement period adjustment	(1.9)
Balance as of July 31, 2021	$ 2,710.1

Goodwill and Intangible Assets (Purchased Intangible Assets by Major Class) (Details) - USD ($) $ in Millions	Jul. 31, 2021	Jul. 31, 2020
Finite-Lived Intangible Assets
Gross carrying amount	$ 788.0	$ 532.3
Accumulated amortization	(289.4)	(174.1)
Net carrying amount	498.6	358.2
Developed technology
Finite-Lived Intangible Assets
Gross carrying amount	596.2	425.9
Accumulated amortization	(243.8)	(146.6)
Net carrying amount	352.4	279.3
Customer relationships
Finite-Lived Intangible Assets
Gross carrying amount	172.7	87.6
Accumulated amortization	(30.6)	(12.4)
Net carrying amount	142.1	75.2
Acquired intellectual property
Finite-Lived Intangible Assets
Gross carrying amount	7.9	6.3
Accumulated amortization	(3.8)	(3.2)
Net carrying amount	4.1	3.1
Trade name and trademarks
Finite-Lived Intangible Assets
Gross carrying amount	9.4	9.4
Accumulated amortization	(9.4)	(9.4)
Net carrying amount	0.0	0.0
Other
Finite-Lived Intangible Assets
Gross carrying amount	1.8	3.1
Accumulated amortization	(1.8)	(2.5)
Net carrying amount	$ 0.0	$ 0.6

Goodwill and Intangible Assets (Amortization Expense) (Details) - USD ($) $ in Millions	12 Months Ended
	Jul. 31, 2021	Jul. 31, 2020	Jul. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization expense	$ 117.8	$ 77.3	$ 53.6

Goodwill and Intangible Assets (Future Amortization Expense of Intangible Assets) (Details) - USD ($) $ in Millions	Jul. 31, 2021	Jul. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
2022	$ 125.7
2023	99.6
2024	89.6
2025	75.9
2026	54.3
2027 and thereafter	53.5
Net carrying amount	$ 498.6	$ 358.2

Property and Equipment (Property and Equipment by Type) (Details) - USD ($) $ in Millions	Jul. 31, 2021	Jul. 31, 2020
Property and Equipment
Property and equipment, gross	$ 717.4	$ 669.1
Less: accumulated depreciation	(399.0)	(321.0)
Total property and equipment, net	318.4	348.1
Computers, equipment, and software
Property and Equipment
Property and equipment, gross	352.1	306.8
Leasehold improvements
Property and Equipment
Property and equipment, gross	231.6	229.5
Land
Property and Equipment
Property and equipment, gross	49.6	49.6
Demonstration units
Property and Equipment
Property and equipment, gross	43.8	43.3
Furniture and fixtures
Property and Equipment
Property and equipment, gross	$ 40.3	$ 39.9

Property and Equipment (Depreciation Expense) (Details) - USD ($) $ in Millions	12 Months Ended
	Jul. 31, 2021	Jul. 31, 2020	Jul. 31, 2019
Property, Plant and Equipment [Abstract]
Depreciation expense	$ 94.2	$ 96.0	$ 86.2

Debt (Additional Information) (Details) shares in Millions, $ in Millions			12 Months Ended
	Jun. 03, 2020 USD ($) day	Jul. 31, 2018 USD ($) day	Jul. 31, 2021 USD ($)	Jul. 31, 2019 USD ($) shares	Jul. 31, 2020 USD ($)	Jun. 30, 2014 USD ($)
Level 2
Debt Instrument, Redemption
Fair value of convertible senior notes \| $			$ 5,500.0		$ 4,100.0
2025 Notes
Debt Instrument, Redemption
Aggregate principal amount \| $	$ 2,000.0
Contractual interest rate (in percentage)	0.375%					0.00%
Threshold percentage of stock price trigger (in percentage)	130.00%
Threshold trading days (in days)	20
Threshold consecutive trading days (in days)	30
Redemption price, percentage	100.00%
Repurchase price as percentage of principal amount in event of change (in percentage)	100.00%
If-converted values in excess of principal \| $			587.8
2023 Notes
Debt Instrument, Redemption
Aggregate principal amount \| $		$ 1,700.0
Contractual interest rate (in percentage)		0.75%
Repurchase price as percentage of principal amount in event of change (in percentage)		100.00%
If-converted values in excess of principal \| $			$ 754.4
Option To Convert - 2025 Notes
Debt Instrument, Redemption
Threshold percentage of stock price trigger (in percentage)	130.00%
Threshold trading days (in days)	20
Threshold consecutive trading days (in days)	30
Threshold business days, per $1,000 principal (in days)	5
Threshold consecutive trading days, per $1,000 principal (in days)	5
Threshold percentage of notes price trigger, per $1,000 principal (in percentage)	98.00%
Option to Convert - 2023 Notes
Debt Instrument, Redemption
Threshold percentage of stock price trigger (in percentage)		130.00%
Threshold trading days (in days)		20
Threshold consecutive trading days (in days)		30
Threshold business days, per $1,000 principal (in days)		5
Threshold consecutive trading days, per $1,000 principal (in days)		5
Threshold percentage of notes price trigger, per $1,000 principal (in percentage)		98.00%
2019 Notes
Debt Instrument, Redemption
Aggregate principal amount \| $						$ 575.0
Repayments of convertible senior notes \| $				$ 575.0
Shares of common stock issued in connection with conversion of convertible senior notes (in shares) \| shares				2.5

Debt (Details of out Notes) (Details) shares in Millions	Jun. 03, 2020 shares $ / shares	Jul. 31, 2018 shares $ / shares
2023 Notes
Debt Instrument [Line Items]
Initial conversion rate (in shares per $1000 principal amount)		3.7545
Initial conversion price (in usd per share) \| $ / shares		$ 266.35
Number of common stock convertible at initial conversion rate (in shares) \| shares		6.4
2025 Notes
Debt Instrument [Line Items]
Initial conversion rate (in shares per $1000 principal amount)	3.3602
Initial conversion price (in usd per share) \| $ / shares	$ 297.60
Number of common stock convertible at initial conversion rate (in shares) \| shares	6.7

Debt (Components of Convertible Senior Notes) (Details) - USD ($) $ in Millions	Jul. 31, 2021	Jul. 31, 2020
Debt Instrument, Redemption
Principal	$ 3,692.0	$ 3,693.0
Less: debt discount and debt issuance costs, net of amortization	(466.0)	(608.9)
Net carrying amount	3,226.0	3,084.1
Equity component (including temporary equity)	718.0	718.0
2023 Notes
Debt Instrument, Redemption
Principal	1,692.0	1,693.0
Less: debt discount and debt issuance costs, net of amortization	(134.1)	(200.0)
Net carrying amount	1,557.9	1,493.0
Equity component (including temporary equity)	315.0	315.0
2025 Notes
Debt Instrument, Redemption
Principal	2,000.0	2,000.0
Less: debt discount and debt issuance costs, net of amortization	(331.9)	(408.9)
Net carrying amount	1,668.1	1,591.1
Equity component (including temporary equity)	$ 403.0	$ 403.0

Debt (Schedule of Interest Expense Recognized) (Details) - USD ($) $ in Millions	12 Months Ended
	Jul. 31, 2021	Jul. 31, 2020	Jul. 31, 2019
Debt Instrument, Redemption
Contractual interest expense	$ 20.2	$ 13.8	$ 12.7
Amortization of debt discount	137.8	71.4	67.2
Amortization of debt issuance costs	5.1	2.5	3.0
Total interest expense recognized	163.1	87.7	82.9
2019 Notes
Debt Instrument, Redemption
Contractual interest expense			0.0
Amortization of debt discount			8.7
Amortization of debt issuance costs			1.1
Total interest expense recognized			$ 9.8
Effective interest rate of the liability component (in percentage)			4.80%
2023 Notes
Debt Instrument, Redemption
Contractual interest expense	12.7	12.7	$ 12.7
Amortization of debt discount	63.5	60.9	58.5
Amortization of debt issuance costs	2.3	2.1	1.9
Total interest expense recognized	$ 78.5	$ 75.7	$ 73.1
Effective interest rate of the liability component (in percentage)	5.20%	5.20%	5.20%
2025 Notes
Debt Instrument, Redemption
Contractual interest expense	$ 7.5	$ 1.1
Amortization of debt discount	74.3	10.5
Amortization of debt issuance costs	2.8	0.4
Total interest expense recognized	$ 84.6	$ 12.0
Effective interest rate of the liability component (in percentage)	5.40%	5.40%

Debt (Note Hedges) (Details) - USD ($) shares in Millions, $ in Millions			12 Months Ended
	Jun. 03, 2020	Jul. 31, 2018	Jul. 31, 2021	Jul. 31, 2020	Jul. 31, 2019
Schedule of Note Hedge Transactions
Aggregate amount paid to purchase note hedges - additional paid-in capital			$ 0.0	$ 370.8	$ 0.0
2023 Note Hedges
Schedule of Note Hedge Transactions
Shares of common stock covered by note hedges (in shares)		6.4
Aggregate amount paid to purchase note hedges - additional paid-in capital		$ 332.0
2025 Note Hedges
Schedule of Note Hedge Transactions
Shares of common stock covered by note hedges (in shares)	6.7
Aggregate amount paid to purchase note hedges - additional paid-in capital	$ 370.8

Debt (Warrants) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions			12 Months Ended
	Jun. 03, 2020	Jul. 31, 2018	Jul. 31, 2021	Jul. 31, 2020	Jul. 31, 2019
Class of Warrant or Right
Proceeds from issuance of warrants			$ 0.0	$ 202.8	$ 0.0
2019 Warrants
Class of Warrant or Right
Stock issued during period, settlement of warrants (in shares)				2.0
Stock issued during period, fair value, settlement of warrants				$ 462.0
2023 Warrants
Class of Warrant or Right
Warrants sold, shares authorized to sell to counterparties (in shares)		6.4
Strike price of warrants (in USD per share)		$ 417.80
Proceeds from issuance of warrants		$ 145.4
2025 Warrants
Class of Warrant or Right
Warrants sold, shares authorized to sell to counterparties (in shares)	6.7
Strike price of warrants (in USD per share)	$ 408.47
Proceeds from issuance of warrants	$ 202.8

Debt (Revolving Credit Facility) (Details) - Revolving credit facility $ in Millions	Sep. 04, 2018 USD ($) day	Jul. 31, 2021 USD ($)
Line of Credit Facility
Current borrowing capacity	$ 400.0
Option for additional borrowing capacity	$ 350.0
Revolving credit facility amount outstanding		$ 0.0
Minimum maturity date term criteria
Line of Credit Facility
Number of days prior to maturity of 2023 Notes (in days) \| day	91
Minimum maturity date term, cash and cash equivalents balance criteria
Line of Credit Facility
Amount added to outstanding principal amount of 2023 Notes in minimum maturity date criteria	$ 400.0
Minimum
Line of Credit Facility
Commitment fee rate on undrawn amounts (in percentage)	0.125%
Maximum
Line of Credit Facility
Commitment fee rate on undrawn amounts (in percentage)	0.25%
Base rate \| Minimum
Line of Credit Facility
Spread on variable rate	0.00%
Base rate \| Maximum
Line of Credit Facility
Spread on variable rate	0.75%
LIBOR \| Minimum
Line of Credit Facility
Spread on variable rate	1.00%
LIBOR \| Maximum
Line of Credit Facility
Spread on variable rate	1.75%

Leases (Details) $ in Millions	1 Months Ended	12 Months Ended
Leases (Details) $ in Millions	Dec. 31, 2019 USD ($)	Jul. 31, 2021 USD ($)	Jul. 31, 2020 USD ($)	Jul. 31, 2019 USD ($)	Jul. 31, 2018 USD ($)	Oct. 31, 2015 USD ($) ft² leaseAgreement	Sep. 30, 2012 USD ($) ft² leaseAgreement leaseRenewalOption
Lessee, Lease, Description
Early termination fees for operating leases	$ 25.0
Increase (decrease) in operating lease, liability	13.6
Increase (decrease) in operating lease, right-of-use asset	$ 8.7
Gain (loss) on termination of lease		$ 0.0	$ 3.1	$ (7.0)
Termination of lease, general and administrative expense			1.8
Lease, cost		75.2	80.4
Operating lease, cost		$ 59.3	$ 63.5
Rent expense				43.0
Q415 and Q116 new lease arrangements - new corporate headquarters
Lessee, Lease, Description
Number of lease agreements \| leaseAgreement						3
Area of office space (in square feet) \| ft²						941,000
Total payments under the lease agreements						$ 412.0
Q113 new lease arrangements - previous corporate headquarters
Lessee, Lease, Description
Number of lease agreements \| leaseAgreement							2
Area of office space (in square feet) \| ft²							300,000
Total payments under the lease agreements							$ 94.3
Number of lease renewal options \| leaseRenewalOption							2
Renewal term (in years)							5 years
(Gain) loss related to facility exit				$ 7.0	$ 39.2

Leases - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Jul. 31, 2021	Jul. 31, 2020
Leases [Abstract]
Operating cash flows used in payments of operating lease liabilities	$ 81.7	$ 78.3
Right-of-use assets obtained in exchange for new operating lease liabilities	$ 48.6	$ 28.4
Weighted-average remaining lease term	6 years 1 month 6 days	7 years
Weighted-average discount rate	3.80%	3.90%

Leases - Maturities of Operating Lease Liabilities (Details) - USD ($) $ in Millions	Jul. 31, 2021	Jul. 31, 2020
Leases [Abstract]
2022	$ 78.8
2023	72.6
2024	61.6
2025	58.7
2026	57.4
2027 and thereafter	97.5
Total operating lease payments	426.6
Less: imputed interest	(47.4)
Present value of operating lease liabilities	379.2
Current portion of operating lease liabilities	65.8
Long-term operating lease liabilities	$ 313.4	$ 336.6
Current portion of operating lease liabilities, statement of financial position presentation	Accrued and other liabilities

Commitments and Contingencies (Manufacturing Purchase Commitments) (Details) - Manufacturing products and components $ in Millions	Jul. 31, 2021 USD ($)
Unrecorded Unconditional Purchase Obligation
2022	$ 219.3
2023	35.6
2024	30.0
2025	35.0
2026	40.0
Total manufacturing purchase commitments	$ 359.9

Commitments and Contingencies (Other Purchase Commitments) (Details) - Cloud and other services $ in Millions	Jul. 31, 2021 USD ($)
Unrecorded Unconditional Purchase Obligation
2022	$ 32.0
2023	241.3
2024	302.1
2025	345.3
2026	551.1
Total other purchase commitments	$ 1,471.8

Commitments and Contingencies (Mutual Covenant Not to Sue and Release Agreement) (Details) $ in Millions	1 Months Ended
	Jan. 31, 2020 USD ($)
Commitments and Contingencies Disclosure [Abstract]
Covenant not to sue agreement, amount	$ 50.0
Covenant not to sue period	7 years

Stockholders' Equity (Stockholders' Equity) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions		1 Months Ended	12 Months Ended
	Feb. 28, 2017	Dec. 31, 2020	Jul. 31, 2021	Jul. 31, 2020	Jul. 31, 2019	Feb. 24, 2020	Feb. 28, 2019	Jul. 31, 2017	Aug. 31, 2016
Share Repurchase Programs
Repurchase and retirement of common stock			$ (1,178.1)	$ (1,198.1)	$ (330.0)
Share repurchase program A
Share Repurchase Programs
Share repurchase, authorized amount								$ 1,000.0	$ 500.0
Share repurchase program, increase in authorized amount	$ 500.0
Repurchase and retirement of common stock (in shares)					1.9
Repurchase and retirement of common stock					$ (330.0)
Repurchase price per share (in usd per share)					$ 177.64
Share repurchase program B
Share Repurchase Programs
Share repurchase, authorized amount		$ 1,700.0					$ 1,000.0
Share repurchase program, increase in authorized amount		$ 700.0
Repurchase and retirement of common stock (in shares)			4.0	0.9
Repurchase and retirement of common stock			$ (1,200.0)	$ (198.1)
Repurchase price per share (in usd per share)			$ 294.87	$ 209.12
Share repurchase, remaining authorized repurchase amount			$ 323.9
Accelerated Share Repurchase
Share Repurchase Programs
Share repurchase, authorized amount						$ 1,000.0
Common stock, repurchased and retired			5.2

Equity Award Plans (Share-Based Compensation Plans) (Details)	12 Months Ended
	Jul. 31, 2021 USD ($) day $ / shares shares	Jul. 31, 2020 $ / shares shares	Jul. 31, 2019 day $ / shares shares	Jul. 31, 2018 day $ / shares
Share-based Compensation Arrangement by Share-based Payment Award
PSOs granted (in shares)	5,100,000
PSOs
Share-based Compensation Arrangement by Share-based Payment Award
PSOs granted (in shares)		0
2012 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award
Vesting condition threshold, average closing price days \| day	30		30	30
Number of shares vested (in shares)	400,000
Shares reserved for future issuance (in shares)	21,900,000
Increase in number of shares reserved for issuance on the first day of fiscal year, maximum (in percentage)	4.50%
2012 Equity Incentive Plan \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award
Award vesting period	4 years
Option expiration period (in years)	10 years
Increase in number of shares reserved for issuance on the first day of fiscal year, maximum (in shares)	8,000,000
2012 Equity Incentive Plan \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award
Award vesting period	3 years
2012 Equity Incentive Plan \| PSAs and PSUs \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award
Award vesting period	4 years
2012 Equity Incentive Plan \| PSAs and PSUs \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award
Award vesting period	1 year
2012 Equity Incentive Plan \| PSOs
Share-based Compensation Arrangement by Share-based Payment Award
PSOs to vest on anniversary of grant date, subject to continued service (in percentage)	25.00%
2012 Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award
Shares reserved for future issuance (in shares)	4,600,000
Increase in number of shares reserved for issuance on the first day of fiscal year, maximum (in percentage)	1.00%
ESPP offering period (in months)	24 months	24 months	6 months
Purchase price of common stock in percentage of the lower of the fair market value of our common stock on the first trading day of each offering period or on the exercise date (in percentage)	85.00%
Purchase periods (in months)	6 months
Number of purchase periods in each ESPP offering	4
Maximum subscription rate (in percentage)	15.00%
Purchase limit per employee, number of shares, during each offering period (in shares)	625
Purchase limit per employee, total fair value of common stock, for each calendar year \| $	$ 25,000
2012 Employee Stock Purchase Plan \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award
Increase in number of shares reserved for issuance on the first day of fiscal year, maximum (in shares)	2,000,000
2012 Employee Stock Purchase Plan \| ESPP
Share-based Compensation Arrangement by Share-based Payment Award
Issuance of common stock in connection with employee stock purchase plan (in shares)	600,000	600,000	500,000
Average price of common stock purchased during the period (in usd per share) \| $ / shares	$ 161.07	$ 146.90	$ 128.81
Performance period 1 \| 2012 Equity Incentive Plan \| PSOs
Share-based Compensation Arrangement by Share-based Payment Award
Performance target stock price (in usd per share) \| $ / shares	$ 397.00		$ 297.75	$ 297.75
Performance period (in years)	3 years		4 years	4 years
Performance period 2 \| 2012 Equity Incentive Plan \| PSOs
Share-based Compensation Arrangement by Share-based Payment Award
Performance target stock price (in usd per share) \| $ / shares	$ 496.25		$ 397.00	$ 397.00
Performance period (in years)	4 years		5 years	5 years
Performance period 3 \| 2012 Equity Incentive Plan \| PSOs
Share-based Compensation Arrangement by Share-based Payment Award
Performance target stock price (in usd per share) \| $ / shares	$ 595.50		$ 496.25	$ 496.25
Performance period (in years)	5 years		6 years	6 years
Performance period 4 \| 2012 Equity Incentive Plan \| PSOs
Share-based Compensation Arrangement by Share-based Payment Award
Option expiration period (in years)			7 years 6 months	7 years 6 months
Performance target stock price (in usd per share) \| $ / shares	$ 700.00		$ 595.50	$ 595.50
Performance period (in years)	6 years 6 months

Equity Award Plans (Acquisition-related Activities) (Details) - RSAs and PSAs - shares shares in Millions	12 Months Ended
	Jul. 31, 2021	Jul. 31, 2020
Expanse Inc. and Sinefa Group, Inc.
Share-based Compensation Arrangement by Share-based Payment Award
Restricted common stock issued as replacement equity awards	0.3
Zingbox, Inc.
Share-based Compensation Arrangement by Share-based Payment Award
Restricted common stock issued as replacement equity awards	0.1
Redlock, Demisto, Puresec and Twistlock
Share-based Compensation Arrangement by Share-based Payment Award
Restricted common stock issued as replacement equity awards		0.5

Equity Award Plans (Stock Options Activity) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Jul. 31, 2021	Jul. 31, 2020	Jul. 31, 2019	Jul. 31, 2018
Stock options
Options, Outstanding Roll Forward
Balance, beginning (in shares)	0.1	0.3	1.0
Options granted (in shares)	0.0		0.0
Options exercised (in shares)	0.0	(0.2)	(0.7)
Options forfeited (in shares)	0.0	0.0	0.0
Balance, ending (in shares)	0.1	0.1	0.3	1.0
Options, Outstanding, Weighted Average Exercise Price Roll Forward
Balance, beginning (in usd per share)	$ 19.59	$ 14.53	$ 13.28
Options granted (in usd per share)	0		0
Options exercised (in usd per share)	12.82	11.46	12.61
Options forfeited (in usd per share)	7.84	0	1.24
Balance, ending (in usd per share)	$ 26.20	$ 19.59	$ 14.53	$ 13.28
Options, Additional Disclosures
Weighted-average remaining contractual life (in years)	9 months 18 days	1 year 6 months	2 years 2 months 12 days	3 years 1 month 6 days
Aggregate intrinsic value	$ 27.4	$ 34.2	$ 81.4	$ 199.8
Options exercisable (in shares)	0.1
Options exercisable, weighted-average exercise price (in usd per share)	$ 26.20
Options exercisable, weighted-average remaining contractual term (in years)	9 months 18 days
Options exercisable, aggregate intrinsic value	$ 27.4
Total intrinsic value of options exercised in the period	$ 22.2	$ 50.2	$ 139.5
PSOs
Options, Outstanding Roll Forward
Balance, beginning (in shares)	2.8	3.7	1.2
Options granted (in shares)	0.2		2.6
Options exercised (in shares)	0.0	0.0	0.0
Options forfeited (in shares)	(0.2)	(0.9)	(0.1)
Balance, ending (in shares)	2.8	2.8	3.7	1.2
Options, Outstanding, Weighted Average Exercise Price Roll Forward
Balance, beginning (in usd per share)	$ 194.14	$ 193.99	$ 198.50
Options granted (in usd per share)	304.29		191.97
Options exercised (in usd per share)	0	0	0
Options forfeited (in usd per share)	304.29	193.51	193.51
Balance, ending (in usd per share)	$ 194.14	$ 194.14	$ 193.99	$ 198.50
Options, Additional Disclosures
Weighted-average remaining contractual life (in years)	4 years 2 months 12 days	5 years 2 months 12 days	6 years 2 months 12 days	7 years
Aggregate intrinsic value	$ 566.8	$ 170.9	$ 120.1	$ 0.0
Options exercisable (in shares)	2.8
Options exercisable, weighted-average exercise price (in usd per share)	$ 194.14
Options exercisable, weighted-average remaining contractual term (in years)	4 years 2 months 12 days
Options exercisable, aggregate intrinsic value	$ 566.8
Weighted-average grant-date fair value of options granted (in usd per share)	$ 82.12		$ 59.11

Equity Award Plans (RSA and PSA Activities) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Jul. 31, 2021	Jul. 31, 2020	Jul. 31, 2019
RSAs
RSAs and PSAs, Outstanding Roll Forward
Balance, beginning (in shares)	0.0	0.0	0.2
Vested (in shares)	0.0	0.0	(0.2)
Forfeited (in shares)	0.0	0.0	0.0
Balance, ending (in shares)	0.0	0.0	0.0
RSAs and PSAs, Outstanding, Weighted Average Grant-Date Fair Value Per Share
Balance, beginning (in usd per share)	$ 148.54	$ 148.54	$ 163.14
Vested (in usd per share)	148.54	148.54	166.83
Forfeited (in usd per share)	148.54	148.54	152.09
Balance, ending (in usd per share)	$ 0	$ 148.54	$ 148.54
RSAs and PSAs, additional disclosures
Total fair value of awards vested in the period	$ 1.6	$ 7.0	$ 41.1
PSAs
RSAs and PSAs, Outstanding Roll Forward
Balance, beginning (in shares)	0.1	0.1	0.1
Vested (in shares)	(0.1)	0.0	0.0
Forfeited (in shares)	0.0	0.0	0.0
Balance, ending (in shares)	0.0	0.1	0.1
RSAs and PSAs, Outstanding, Weighted Average Grant-Date Fair Value Per Share
Balance, beginning (in usd per share)	$ 148.54	$ 148.54	$ 148.54
Vested (in usd per share)	148.54	148.54	148.54
Forfeited (in usd per share)	148.54	148.54	148.54
Balance, ending (in usd per share)	$ 0	$ 148.54	$ 148.54
RSAs and PSAs, additional disclosures
Total fair value of awards vested in the period	$ 0.8	$ 3.8	$ 4.5
RSUs
RSAs and PSAs, Outstanding Roll Forward
Balance, beginning (in shares)	6.6	6.9	6.5
Granted (in shares)	4.1	3.5	3.9
Vested (in shares)	(2.9)	(2.8)	(2.7)
Forfeited (in shares)	(0.9)	(1.0)	(0.8)
Balance, ending (in shares)	6.9	6.6	6.9
RSAs and PSAs, Outstanding, Weighted Average Grant-Date Fair Value Per Share
Balance, beginning (in usd per share)	$ 203.30	$ 188.16	$ 160.70
Granted (in usd per share)	297.89	211.38	210.14
Vested (in usd per share)	200.91	181.19	160.87
Forfeited (in usd per share)	226.79	188.18	162.73
Balance, ending (in usd per share)	$ 257.56	$ 203.30	$ 188.16
RSAs and PSAs, additional disclosures
Total fair value of awards vested in the period	$ 986.4	$ 615.7	$ 566.4
RSUs \| Zingbox, Aporeto and Cloudgenix
RSAs and PSAs, Outstanding Roll Forward
Granted (in shares)		0.1
RSUs \| Zingbox, Inc.
RSAs and PSAs, Outstanding, Weighted Average Grant-Date Fair Value Per Share
Granted (in usd per share)		$ 208.25
RSUs \| CloudGenix, Inc.
RSAs and PSAs, Outstanding, Weighted Average Grant-Date Fair Value Per Share
Granted (in usd per share)		181.48
RSUs \| Aporeto, Inc.
RSAs and PSAs, Outstanding, Weighted Average Grant-Date Fair Value Per Share
Granted (in usd per share)		$ 231.30

Equity Award Plans (RSU and PSU Activities) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Jul. 31, 2021	Jul. 31, 2020	Jul. 31, 2019	Jul. 31, 2018
RSUs
RSUs and PSUs, Outstanding Roll Forward
Balance, beginning (in shares)	6.6	6.9	6.5
Granted (in shares)	4.1	3.5	3.9
Vested (in shares)	(2.9)	(2.8)	(2.7)
Forfeited (in shares)	(0.9)	(1.0)	(0.8)
Balance, ending (in shares)	6.9	6.6	6.9
RSUs and PSUs, Outstanding, Weighted Average Grant-Date Fair Value Per Share
Balance, beginning (in usd per share)	$ 203.30	$ 188.16	$ 160.70
Granted (in usd per share)	297.89	211.38	210.14
Vested (in usd per share)	200.91	181.19	160.87
Forfeited (in usd per share)	226.79	188.18	162.73
Balance, ending (in usd per share)	$ 257.56	$ 203.30	$ 188.16
RSUs and PSUs, additional disclosures
Aggregate intrinsic value	$ 2,760.2	$ 1,688.1	$ 1,554.0	$ 1,291.4
Total fair value of awards vested in the period	$ 986.4	$ 615.7	$ 566.4
RSUs \| Cypris, Sinefa, Expanse, and Bridgecrew
RSUs and PSUs, Outstanding Roll Forward
Granted (in shares)	0.4
RSUs \| The Crypsis Group
RSUs and PSUs, Outstanding, Weighted Average Grant-Date Fair Value Per Share
Granted (in usd per share)	$ 241.43
RSUs \| Sinefa Group, Inc.
RSUs and PSUs, Outstanding, Weighted Average Grant-Date Fair Value Per Share
Granted (in usd per share)	297.17
RSUs \| Expanse Inc.
RSUs and PSUs, Outstanding, Weighted Average Grant-Date Fair Value Per Share
Granted (in usd per share)	317.45
RSUs \| Bridgecrew Inc.
RSUs and PSUs, Outstanding, Weighted Average Grant-Date Fair Value Per Share
Granted (in usd per share)	$ 354.66
RSUs \| Zingbox, Aporeto and Cloudgenix
RSUs and PSUs, Outstanding Roll Forward
Granted (in shares)		0.1
RSUs \| Zingbox, Inc.
RSUs and PSUs, Outstanding, Weighted Average Grant-Date Fair Value Per Share
Granted (in usd per share)		$ 208.25
RSUs \| Aporeto, Inc.
RSUs and PSUs, Outstanding, Weighted Average Grant-Date Fair Value Per Share
Granted (in usd per share)		231.30
RSUs \| CloudGenix, Inc.
RSUs and PSUs, Outstanding, Weighted Average Grant-Date Fair Value Per Share
Granted (in usd per share)		$ 181.48
RSUs \| Redlock, Demisto, Puresec and Twistlock
RSUs and PSUs, additional disclosures
Equity awards assumed (in shares)			0.4
Replacement equity awards granted (in shares)			0.1
Equity awards assumed, weighted-average grant date fair value			$ 218.69
Replacement equity awards granted, weighted-average grant date fair value			$ 224.31
PSUs
RSUs and PSUs, Outstanding Roll Forward
Balance, beginning (in shares)	0.6	0.3	0.2
Granted (in shares)	0.8	0.4	0.2
Vested (in shares)	(0.1)	(0.1)	(0.1)
Forfeited (in shares)	0.0	0.0	0.0
Balance, ending (in shares)	1.3	0.6	0.3
RSUs and PSUs, Outstanding, Weighted Average Grant-Date Fair Value Per Share
Balance, beginning (in usd per share)	$ 231.42	$ 197.86	$ 149.73
Granted (in usd per share)	321.45	248.55	215.64
Vested (in usd per share)	195.60	166.90	149.73
Forfeited (in usd per share)	235.98	175.88	155.38
Balance, ending (in usd per share)	$ 292.93	$ 231.42	$ 197.86
RSUs and PSUs, additional disclosures
Aggregate intrinsic value	$ 498.4	$ 147.2	$ 67.0	$ 43.7
Total fair value of awards vested in the period	$ 20.8	$ 11.9	$ 17.2

Equity Award Plans (Shares Available for Grant Roll-forward) (Details) shares in Millions	12 Months Ended
	Jul. 31, 2021 shares
Shares Available for Grant Roll Forward
Shares available for grant, beginning (in shares)	10.5
Authorized (in shares)	4.7
PSOs, RSUs, and PSUs granted (in shares)	(5.1)
Options, PSOs, RSAs, PSAs, RSUs, and PSUs forfeited (in shares)	1.1
Shares withheld for taxes (in shares)	0.1
Shares available for grant, ending (in shares)	11.3

Equity Award Plans (Fair Value Assumptions and Grant-Date Fair Values) (Details) - $ / shares	12 Months Ended
	Jul. 31, 2021	Jul. 31, 2020	Jul. 31, 2019
PSOs
Share-based Compensation Arrangement by Share-based Payment Award
Expected volatility rate (in percentage)	35.90%
Expected volatility rate, minimum (in percentage)			35.60%
Expected volatility rate, maximum (in percentage)			36.50%
Expected dividend rate (in percentage)	0.00%		0.00%
Risk free interest rate (in percentage)	0.60%
Risk-free interest rate, minimum (in percentage)			3.10%
Risk free interest rate, maximum (in percentage)			3.20%
Weighted-average grant-date fair value of options granted (in usd per share)	$ 82.12		$ 59.11
ESPP
Share-based Compensation Arrangement by Share-based Payment Award
Expected volatility rate, minimum (in percentage)	34.90%	31.00%	30.00%
Expected volatility rate, maximum (in percentage)	42.60%	35.70%	34.50%
Expected dividend rate (in percentage)	0.00%	0.00%	0.00%
Risk free interest rate (in percentage)	0.10%
Risk-free interest rate, minimum (in percentage)		0.90%	2.30%
Risk free interest rate, maximum (in percentage)		1.90%	2.60%
Grant-date fair value per share, minimum	$ 69.48	$ 46.75	$ 55.03
Grant date fair value per share, maximum	$ 129.05	$ 66.47	$ 87.04
Minimum \| ESPP
Share-based Compensation Arrangement by Share-based Payment Award
Expected term (in years)	6 months	6 months	6 months
Maximum \| ESPP
Share-based Compensation Arrangement by Share-based Payment Award
Expected term (in years)	2 years	2 years	2 years

Equity Award Plans (Allocation of Share Based Compensation Expense By Functional Area) (Details) - USD ($) $ in Millions	12 Months Ended
	Jul. 31, 2021	Jul. 31, 2020	Jul. 31, 2019
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Share-based compensation expense	$ 926.9	$ 664.5	$ 587.7
Research and development
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Share-based compensation expense	428.9	274.6	186.8
Sales and marketing
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Share-based compensation expense	269.9	214.5	221.9
General and administrative
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Share-based compensation expense	128.9	92.0	102.1
Product \| Cost of revenue
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Share-based compensation expense	6.2	5.7	5.6
Subscription and support \| Cost of revenue
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Share-based compensation expense	$ 93.0	$ 77.7	$ 71.3

Equity Award Plans (Allocation of Share-based Compensation Additional Information) (Details) - USD ($) $ in Millions	12 Months Ended
	Jul. 31, 2021	Jul. 31, 2020	Jul. 31, 2019
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Total compensation cost not yet recognized, nonvested awards	$ 2,000.0
Compensation expense not yet recognized, period for recognition (in years)	2 years 7 months 6 days
Bridgecrew Inc. \| General and administrative
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Share-based compensation recognized for accelerated vesting of acquiree equity awards	$ 9.8
Expanse Inc. \| General and administrative
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Share-based compensation recognized for accelerated vesting of acquiree equity awards	5.7
Sinefa Group, Inc. \| General and administrative
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Share-based compensation recognized for accelerated vesting of acquiree equity awards	9.8
The Crypsis Group \| General and administrative
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Share-based compensation recognized for accelerated vesting of acquiree equity awards	$ 7.1
Zingbox, Inc. \| General and administrative
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Share-based compensation recognized for accelerated vesting of acquiree equity awards		$ 1.3
Aporeto, Inc. \| General and administrative
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Share-based compensation recognized for accelerated vesting of acquiree equity awards		4.4
CloudGenix, Inc. \| General and administrative
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Share-based compensation recognized for accelerated vesting of acquiree equity awards		$ 0.3
RedLock, Inc. \| General and administrative
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Share-based compensation recognized for accelerated vesting of acquiree equity awards			$ 14.2
Twistlock Ltd. \| General and administrative
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Share-based compensation recognized for accelerated vesting of acquiree equity awards			$ 5.8

Income Taxes (Income (Loss) Before Income Taxes) (Details) - USD ($) $ in Millions	12 Months Ended
	Jul. 31, 2021	Jul. 31, 2020	Jul. 31, 2019
Income Tax Disclosure [Abstract]
United States	$ (482.2)	$ (56.1)	$ (198.1)
Foreign	17.2	(175.7)	123.5
Loss before income taxes	$ (465.0)	$ (231.8)	$ (74.6)

- Definition

Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 30
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8906-108599

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 940
-SubTopic 20
-Section 25
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=68072869&loc=d3e41242-110953

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599

Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(10))
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Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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-Topic 944
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-Section S99
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-Subparagraph (SX 210.7-04(8))
-URI http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 235
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-05(b)(2))
-URI http://asc.fasb.org/extlink&oid=120399901&loc=d3e537907-122884

Reference 9: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 31
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8924-108599

Reference 10: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04(15))
-URI http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260

+ Details

Income Taxes (Schedule of Components of Income Tax Expense) (Details) - USD ($) $ in Millions	12 Months Ended
	Jul. 31, 2021	Jul. 31, 2020	Jul. 31, 2019
Federal:
Current	$ 3.3	$ 3.8	$ (1.3)
Deferred	(5.9)	(1.3)	(11.3)
State:
Current	1.7	1.3	(0.9)
Deferred	0.1	0.1	(3.0)
Foreign:
Current	41.3	39.2	27.5
Deferred	(6.6)	(7.9)	(3.7)
Total	$ 33.9	$ 35.2	$ 7.3

Income Taxes (Effective Tax Rate Reconciliation) (Details)	12 Months Ended
	Jul. 31, 2021	Jul. 31, 2020	Jul. 31, 2019
Income Tax Disclosure [Abstract]
Federal statutory rate	21.00%	21.00%	21.00%
State taxes, net of federal tax benefit	1.30%	3.00%	7.90%
Effects of non-U.S. operations	(3.10%)	667.50%	89.30%
Change in valuation allowance	(40.70%)	(714.10%)	(196.90%)
Effect of U.S. tax law change	0.00%	0.00%	0.60%
Share-based compensation	5.00%	(5.10%)	44.90%
Tax credits	9.90%	17.90%	35.00%
Non-deductible expenses	(1.30%)	(3.90%)	(11.50%)
Other, net	0.60%	(1.50%)	(0.10%)
Total	(7.30%)	(15.20%)	(9.80%)

Income Taxes (Components of the Deferred Tax Assets and Liabilities) (Details) - USD ($) $ in Millions	Jul. 31, 2021	Jul. 31, 2020
Deferred tax assets:
Accruals and reserves	$ 125.0	$ 116.5
Deferred revenue	364.9	272.5
Net operating loss carryforwards	575.9	348.0
Tax credits	230.8	179.6
Share-based compensation	53.9	33.7
Fixed assets and intangible assets	1,789.6	1,458.8
Gross deferred tax assets	3,140.1	2,409.1
Valuation allowance	(2,933.3)	(2,240.4)
Total deferred tax assets	206.8	168.7
Deferred tax liabilities:
Deferred commissions	(165.4)	(130.8)
Other deferred tax liabilities	(32.3)	(28.9)
Total deferred tax liabilities	(197.7)	(159.7)
Net deferred tax assets	$ 9.1	$ 9.0

Income Taxes (Net Operating Loss Carryforward) (Details) $ in Billions	Jul. 31, 2021 USD ($)
Federal
Operating Loss Carryforwards
Operating loss carryforwards	$ 1.8
State
Operating Loss Carryforwards
Operating loss carryforwards	0.9
Foreign
Operating Loss Carryforwards
Operating loss carryforwards	$ 1.1

Income Taxes (Tax Credit Carryforwards) (Details) $ in Millions	Jul. 31, 2021 USD ($)
Federal \| Research tax credit carryforward
Tax Credit Carryforward
Tax credit carryforward	$ 172.8
State \| Research tax credit carryforward
Tax Credit Carryforward
Tax credit carryforward	144.7
Foreign
Tax Credit Carryforward
Tax credit carryforward	$ 3.6

Income Taxes (Unrecognized Tax Benefit Roll-Forward) (Details) - USD ($) $ in Millions	12 Months Ended
	Jul. 31, 2021	Jul. 31, 2020	Jul. 31, 2019
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns
Unrecognized tax benefits at the beginning of the period	$ 326.4	$ 314.5	$ 337.7
Additions for tax positions taken in prior years	26.5	3.2	0.3
Reductions for tax positions taken in prior years	(2.5)	(1.6)	(33.4)
Additions for tax positions taken in the current year	22.5	10.3	9.9
Unrecognized tax benefits at the end of the period	$ 372.9	$ 326.4	$ 314.5

Income Taxes (Additional Information) (Details) - USD ($) $ in Millions	12 Months Ended
	Jul. 31, 2021	Jul. 31, 2020	Jul. 31, 2019	Jul. 31, 2018
Income Tax Disclosure [Abstract]
Valuation allowance increase	$ (700.0)
Unrecognized tax benefits	372.9	$ 326.4	$ 314.5	$ 337.7
Unrecognized tax benefits that would affect income tax expense	68.7	63.9
Income tax expense related to interest and penalties	3.5	1.6	$ 2.3
Interest and penalties accrued	15.7	$ 12.2
Undistributed earnings of foreign subsidiaries	$ 0.0

Net Loss Per Share (Computation of Basic and Diluted Net Loss Per Share) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Jul. 31, 2021	Jul. 31, 2020	Jul. 31, 2019
Earnings Per Share [Abstract]
Net loss	$ (498.9)	$ (267.0)	$ (81.9)
Weighted-average shares used to compute net loss per share, basic (in shares)	96.4	96.9	94.5
Weighted-average shares used to compute net loss per share, diluted (in shares)	96.4	96.9	94.5
Net loss per share, basic (in USD per share)	$ (5.18)	$ (2.76)	$ (0.87)
Net loss per share, diluted (in USD per share)	$ (5.18)	$ (2.76)	$ (0.87)

- Definition

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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+ Details

- Definition

The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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+ Details

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References

+ Details

Net Loss Per Share (Schedule of Antidilutive Securities Excluded from Computation) (Details) - shares shares in Millions	12 Months Ended
	Jul. 31, 2021	Jul. 31, 2020	Jul. 31, 2019
Antidilutive Securities Excluded from Computation of Earnings Per Share
Antidilutive securities (in shares)	37.9	36.7	29.5
Convertible senior notes
Antidilutive Securities Excluded from Computation of Earnings Per Share
Antidilutive securities (in shares)	13.1	13.1	6.4
Warrants related to the issuance of convertible senior notes
Antidilutive Securities Excluded from Computation of Earnings Per Share
Antidilutive securities (in shares)	13.1	13.1	11.6
RSUs and PSUs
Antidilutive Securities Excluded from Computation of Earnings Per Share
Antidilutive securities (in shares)	8.2	7.2	7.2
Options to purchase common stock, including PSOs
Antidilutive Securities Excluded from Computation of Earnings Per Share
Antidilutive securities (in shares)	2.9	2.9	4.0
RSAs and PSAs
Antidilutive Securities Excluded from Computation of Earnings Per Share
Antidilutive securities (in shares)	0.3	0.1	0.1
ESPP shares
Antidilutive Securities Excluded from Computation of Earnings Per Share
Antidilutive securities (in shares)	0.3	0.3	0.2

Other Income, Net (Details) - USD ($) $ in Millions	12 Months Ended
Other Income, Net (Details) - USD ($) $ in Millions	Jul. 31, 2021	Jul. 31, 2020	Jul. 31, 2019
Other Income and Expenses [Abstract]
Interest income	$ 8.5	$ 41.4	$ 69.8
Foreign currency exchange gains (losses), net	(5.4)	(6.7)	(3.5)
Other	(0.7)	1.2	(2.9)
Other income, net	$ 2.4	$ 35.9	$ 63.4

Segment Information (Segments) (Details)	12 Months Ended
Segment Information (Segments) (Details)	Jul. 31, 2021
Segment Reporting [Abstract]
Number of reportable segments	1

Segment Information Long-lived Assets by Geographic Theater) (Details) - USD ($) $ in Millions	Jul. 31, 2021	Jul. 31, 2020
Segment Reporting Information
Long-lived assets	$ 581.3	$ 606.8
United States
Segment Reporting Information
Long-lived assets	461.1	502.3
Israel
Segment Reporting Information
Long-lived assets	61.9	52.1
Other countries
Segment Reporting Information
Long-lived assets	$ 58.3	$ 52.4

Related Party Transactions (Details) $ in Millions	Mar. 28, 2019 USD ($)
Demisto, Inc. \| Greylock Partners
Related Party Transaction
Consideration transferred	$ 85.6

Subsequent Events (Details) - USD ($) $ in Millions			1 Months Ended
Subsequent Events (Details) - USD ($) $ in Millions	Aug. 17, 2021	Aug. 11, 2021	Dec. 31, 2020	Jul. 31, 2021
Share repurchase program B
Subsequent Events
Share repurchase program, increase in authorized amount			$ 700.0
Share repurchase, remaining authorized repurchase amount				$ 323.9
Subsequent event \| Gamma Networks, Inc.
Subsequent Events
Total consideration		$ 36.0
Subsequent event \| Share repurchase program B
Subsequent Events
Share repurchase program, increase in authorized amount	$ 676.1
Share repurchase, remaining authorized repurchase amount	$ 1,000.0