NetApp (NTAP) 10-Q 18 Nov 19 2020 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Oct. 25, 2019	Nov. 13, 2019
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Oct. 25, 2019
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q2
Trading Symbol	NTAP
Entity Registrant Name	NetApp, Inc.
Entity Central Index Key	0001002047
Current Fiscal Year End Date	--04-24
Entity Filer Category	Large Accelerated Filer
Entity Current Reporting Status	Yes
Entity Small Business	false
Entity Shell Company	false
Entity Emerging Growth Company	false
Entity Common Stock, Shares Outstanding		228,226,206
Entity File Number	000-27130
Entity Tax Identification Number	77-0307520
Entity Address, Address Line One	1395 Crossman Avenue
Entity Address, City or Town	Sunnyvale
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	94089
City Area Code	408
Local Phone Number	822-6000
Document Quarterly Report	true
Document Transition Report	false
Entity Incorporation, State or Country Code	DE
Entity Interactive Data Current	Yes
Security Exchange Name	NASDAQ
Title of 12(b) Security	Common Stock, $0.001 Par Value

CONDENSED CONSOLIDATED BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Millions	Oct. 25, 2019	Apr. 26, 2019
Current assets:
Cash and cash equivalents	$ 2,545	$ 2,325
Short-term investments	442	1,574
Accounts receivable	780	1,216
Inventories	111	131
Other current assets	313	364
Total current assets	4,191	5,610
Property and equipment, net	746	759
Goodwill	1,770	1,735
Other intangible assets, net	51	47
Other non-current assets	714	590
Total assets	7,472	8,741
Current liabilities:
Accounts payable	382	542
Accrued expenses	606	851
Commercial paper notes	498	249
Current portion of long-term debt	0	400
Short-term deferred revenue and financed unearned services revenue	1,718	1,825
Total current liabilities	3,204	3,867
Long-term debt	1,145	1,144
Other long-term liabilities	837	797
Long-term deferred revenue and financed unearned services revenue	1,750	1,843
Total liabilities	6,936	7,651
Commitments and contingencies (Note 16)	0	0
Stockholders' equity:
Common stock and additional paid-in capital, $0.001 par value; 229 and 240 shares issued and outstanding as of October 25, 2019 and April 26, 2019, respectively	572	1,133
Retained earnings	0	0
Accumulated other comprehensive loss	(36)	(43)
Total stockholders' equity	536	1,090
Total liabilities and stockholders' equity	$ 7,472	$ 8,741

CONDENSED CONSOLIDATED BALANC_2

CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) - $ / shares shares in Millions	Oct. 25, 2019	Apr. 26, 2019
Statement Of Financial Position [Abstract]
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares issued	229	240
Common stock, shares outstanding	229	240

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Oct. 25, 2019	Oct. 26, 2018	Oct. 25, 2019	Oct. 26, 2018
Revenues:
Net revenues	$ 1,371	$ 1,517	$ 2,607	$ 2,991
Cost of revenues:
Total cost of revenues	446	543	866	1,054
Gross profit	925	974	1,741	1,937
Operating expenses:
Sales and marketing	389	408	794	817
Research and development	209	211	424	419
General and administrative	69	69	140	142
Restructuring charges	0	0	21	19
Gain on sale or derecognition of assets	(38)	0	(38)	0
Total operating expenses	629	688	1,341	1,397
Income from operations	296	286	400	540
Other income, net	3	7	18	25
Income before income taxes	299	293	418	565
Provision for income taxes	56	52	72	41
Net income	$ 243	$ 241	$ 346	$ 524
Net income per share:
Basic	$ 1.03	$ 0.93	$ 1.46	$ 2.02
Diluted	$ 1.03	$ 0.91	$ 1.44	$ 1.96
Shares used in net income per share calculations:
Basic	235	258	237	260
Diluted	236	264	240	267
Product [Member]
Revenues:
Net revenues	$ 771	$ 913	$ 1,415	$ 1,788
Cost of revenues:
Total cost of revenues	341	428	653	826
Software Maintenance [Member]
Revenues:
Net revenues	254	236	504	465
Cost of revenues:
Total cost of revenues	11	8	21	15
Hardware Maintenance and Other Services [Member]
Revenues:
Net revenues	346	368	688	738
Cost of revenues:
Total cost of revenues	$ 94	$ 107	$ 192	$ 213

CONDENSED CONSOLIDATED STATEM_2

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Oct. 25, 2019	Oct. 26, 2018	Oct. 25, 2019	Oct. 26, 2018
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 243	$ 241	$ 346	$ 524
Other comprehensive income (loss):
Foreign currency translation adjustments	(1)	(3)	(2)	(3)
Defined benefit obligations:
Reclassification adjustments related to defined benefit obligations	(1)	(1)	(1)	(1)
Income tax effect	1	0	1	0
Unrealized gains (losses) on available-for-sale securities:
Unrealized holding gains (losses) arising during the period	2	(1)	22	(1)
Reclassification adjustments for gains included in net income	0	0	(14)	0
Unrealized gains on cash flow hedges:
Unrealized holding gains arising during the period	2	0	1	0
Other comprehensive income (loss)	3	(5)	7	(5)
Comprehensive income	$ 246	$ 236	$ 353	$ 519

CONDENSED CONSOLIDATED STATEM_3

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Millions	6 Months Ended
	Oct. 25, 2019	Oct. 26, 2018
Cash flows from operating activities:
Net income	$ 346	$ 524
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	99	98
Stock-based compensation	82	78
Deferred income taxes	(23)	(25)
Gain on sale or derecognition of assets	(38)	0
Other items, net	13	11
Changes in assets and liabilities, net of acquisitions of businesses:
Accounts receivable	435	269
Inventories	20	36
Other operating assets	41	(19)
Accounts payable	(157)	(127)
Accrued expenses	(315)	(162)
Deferred revenue and financed unearned services revenue	(197)	(129)
Long-term taxes payable	(49)	(63)
Net cash provided by operating activities	257	491
Cash flows from investing activities:
Purchases of investments	(9)	(20)
Maturities, sales and collections of investments	1,155	509
Purchases of property and equipment	(68)	(107)
Proceeds from sale of properties	96	0
Acquisitions of businesses, net of cash acquired	(56)	(3)
Other investing activities, net	(2)	2
Net cash provided by investing activities	1,116	381
Cash flows from financing activities:
Proceeds from issuance of common stock under employee stock award plans	55	65
Payments for taxes related to net share settlement of stock awards	(74)	(89)
Repurchase of common stock	(750)	(1,061)
Proceeds from (repayments of) commercial paper notes, net	249	(135)
Repayment of long-term debt	(400)	0
Dividends paid	(226)	(207)
Other financing activities, net	(2)	(2)
Net cash used in financing activities	(1,148)	(1,429)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	(5)	(25)
Net increase (decrease) in cash, cash equivalents and restricted cash	220	(582)
Cash, cash equivalents and restricted cash:
Beginning of period	2,331	2,947
End of period	$ 2,551	$ 2,365

CONDENSED CONSOLIDATED STATEM_4

CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Unaudited) - USD ($) shares in Millions, $ in Millions	Total	Common Stock and Additional Paid-in Capital	Retained Earnings (Accumulated Deficit)	Accumulated Other Comprehensive Loss
Balances at Apr. 27, 2018	$ 2,276	$ 2,355	$ (9)	$ (70)
Balances (in shares) at Apr. 27, 2018		263
Cumulative-effect of new accounting principle (ASU 2016-16) at Apr. 27, 2018	(51)		(51)
Net income	524		524
Other comprehensive income (loss)	(5)			(5)
Issuance of common stock under employee stock award plans, net of taxes	(24)	$ (24)
Issuance of common stock under employee stock award plans, net of taxes (in shares)		5
Repurchase of common stock	(1,061)	$ (597)	(464)
Repurchase of common stock, shares		(14)
Stock-based compensation	78	$ 78
Cash dividends declared ($0.48, $0.40, $0.96 and $0.80 per common share)	(207)	(207)
Balances at Oct. 26, 2018	1,530	$ 1,605		(75)
Balances (in shares) at Oct. 26, 2018		254
Balances at Jul. 27, 2018	1,922	$ 1,992		(70)
Balances (in shares) at Jul. 27, 2018		260
Net income	241		241
Other comprehensive income (loss)	(5)			(5)
Issuance of common stock under employee stock award plans, net of taxes	(3)	$ (3)
Issuance of common stock under employee stock award plans, net of taxes (in shares)		1
Repurchase of common stock	(561)	$ (320)	(241)
Repurchase of common stock, shares		(7)
Stock-based compensation	38	$ 38
Cash dividends declared ($0.48, $0.40, $0.96 and $0.80 per common share)	(102)	(102)
Balances at Oct. 26, 2018	1,530	$ 1,605		(75)
Balances (in shares) at Oct. 26, 2018		254
Balances at Apr. 26, 2019	$ 1,090	$ 1,133		(43)
Balances (in shares) at Apr. 26, 2019	240	240
Cumulative-effect of new accounting principle (ASC 842) at Apr. 26, 2019	$ 6		6
Net income	346		346
Other comprehensive income (loss)	7			7
Issuance of common stock under employee stock award plans, net of taxes	(19)	$ (19)
Issuance of common stock under employee stock award plans, net of taxes (in shares)		3
Repurchase of common stock	$ (750)	$ (398)	(352)
Repurchase of common stock, shares	(14)	(14)
Stock-based compensation	$ 82	$ 82
Cash dividends declared ($0.48, $0.40, $0.96 and $0.80 per common share)	(226)	(226)
Balances at Oct. 25, 2019	$ 536	$ 572		(36)
Balances (in shares) at Oct. 25, 2019	229	229
Balances at Jul. 26, 2019	$ 863	$ 902		(39)
Balances (in shares) at Jul. 26, 2019		239
Net income	243		243
Other comprehensive income (loss)	3			3
Issuance of common stock under employee stock award plans, net of taxes	(2)	$ (2)
Repurchase of common stock	(500)	$ (257)	$ (243)
Repurchase of common stock, shares		(10)
Stock-based compensation	40	$ 40
Cash dividends declared ($0.48, $0.40, $0.96 and $0.80 per common share)	(111)	(111)
Balances at Oct. 25, 2019	$ 536	$ 572		$ (36)
Balances (in shares) at Oct. 25, 2019	229	229

CONDENSED CONSOLIDATED STATEM_5

CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Unaudited) (Parenthetical) - $ / shares	3 Months Ended		6 Months Ended
	Oct. 25, 2019	Oct. 26, 2018	Oct. 25, 2019	Oct. 26, 2018
Statement Of Stockholders Equity [Abstract]
Cash dividends declared, per common share	$ 0.48	$ 0.40	$ 0.96	$ 0.80

Description of Business and Sig

Description of Business and Significant Accounting Policies	6 Months Ended
	Oct. 25, 2019
Accounting Policies [Abstract]
Description of Business and Significant Accounting Policies	1. Description of Business and Significant Accounting Policies NetApp, Inc. (we, us, or the Company) provides global organizations the ability to manage and share their data across on-premises, private and public clouds. Together with our partners, we provide a full range of enterprise-class software, systems and services solutions that customers use to modernize their infrastructures, build next generation data centers and harness the power of hybrid clouds. Basis of Presentation and Preparation Our fiscal year is reported on a 52- or 53-week year ending on the last Friday in April. An additional week is included in the first fiscal quarter approximately every six years to realign fiscal months with calendar months. Fiscal years 2020 and 2019, ending on April 24, 2020, and April 26, 2019, respectively, are each 52-week years, with 13 weeks in each of their quarters. The accompanying unaudited condensed consolidated financial statements have been prepared by the Company, and reflect all adjustments, consisting only of normal recurring adjustments, that are, in the opinion of management, necessary for the fair presentation of our financial position, results of operations, comprehensive income, cash flows and stockholders’ equity for the interim periods presented. The statements have been prepared in accordance with accounting principles generally accepted in the United States of America (GAAP) for interim financial information. Accordingly, these statements do not include all information and footnotes required by GAAP for annual consolidated financial statements, and should be read in conjunction with our audited consolidated financial statements as of and for the fiscal year ended April 26, 2019 contained in our Annual Report on Form 10-K. The results of operations for the three and six months ended October 25, 2019 are not necessarily indicative of the operating results to be expected for the full fiscal year or future operating periods. The preparation of the condensed 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 financial statements and the reported amounts of revenues and expenses during the reporting periods. Such estimates include, but are not limited to, revenue recognition, reserves and allowances; inventory valuation and purchase order accruals; valuation of goodwill and intangibles; restructuring reserves; product warranties; employee compensation and benefit accruals; stock-based compensation; loss contingencies; investment impairments; income taxes and fair value measurements. Actual results could differ materially from those estimates. Accounting Changes In February 2016, the FASB issued an accounting standards update on financial reporting for leasing arrangements, including requiring lessees to recognize an operating lease with a term greater than one year on their balance sheets as a right-of-use (ROU) asset and corresponding lease liability, measured at the present value of the lease payments. In the first quarter of fiscal 2020, we adopted this new standard using the modified retrospective approach, electing the optional transition approach of not adjusting our comparative period financial statements for the impacts of adoption. We also elected the package of practical expedients that did not require us to reassess existing leases under the new guidance, and the practical expedient to not separate lease and non-lease components for all leases. Adoption of the new standard on April 27, 2019 resulted in the recognition of approximately $149 million of operating lease ROU assets, net of deferred rent and lease restructuring liabilities, $158 million of lease liabilities, and a cumulative-effect adjustment to retained earnings of $6 million on our condensed consolidated balance sheets. Adoption of the standard did not have a material impact on our condensed consolidated statements of operations or condensed consolidated statements of cash flows. Additional information is presented below and in Note 9 – Leases. Leases − We determine if an arrangement is or contains a lease at inception, and we classify leases as operating or finance leases at commencement. In our condensed consolidated balance sheets, operating lease ROU assets are included in other non-current assets, while finance lease ROU assets are included in property and equipment, net. Lease liabilities for both types of leases are included in accrued expenses and other long-term liabilities. ROU assets represent our right to use an underlying asset for the lease term and lease liabilities represent our obligation to make lease payments over that term. Operating and finance lease ROU assets and liabilities are recognized at commencement based on the present value of lease payments over the lease term. ROU assets also include any lease payments made prior to lease commencement and exclude lease incentives. The lease term is the noncancelable period of the lease and includes options to extend or terminate the lease when it is reasonably certain that an option will be exercised. As the rate implicit in our leases is typically not readily determinable, in computing the present value of lease payments we generally use our incremental borrowing rate based on information available at the commencement date. Variable lease payments not dependent on an index or rate are expensed as incurred and not included within the calculation of ROU assets and lease liabilities. Lease expense for lease payments is recognized on a straight-line basis over the lease term. We do not separate non-lease components from lease components for any class of leases, and we do not recognize ROU assets and lease liabilities for leases with a lease term of twelve months or less. There have been no other significant changes in our significant accounting policies as of and for the six months ended October 25, 2019, as compared to the significant accounting policies described in our Annual Report on Form 10-K for the fiscal year ended April 26, 2019.

Recent Accounting Standards Not

Recent Accounting Standards Not Yet Effective	6 Months Ended
	Oct. 25, 2019
New Accounting Pronouncements And Changes In Accounting Principles [Abstract]
Recent Accounting Standards Not Yet Effective	2. Recent Accounting Standards Not Yet Effective Credit Losses on Financial Instruments In June 2016, the FASB issued an accounting standards update on the measurement of credit losses on financial instruments. The standard introduces a new model for measuring and recognizing credit losses on financial instruments, requiring financial assets measured at amortized cost basis to be presented at the net amount expected to be collected.

Business Combination

Business Combination	6 Months Ended
	Oct. 25, 2019
Business Combinations [Abstract]
Business Combination	3. On May 23, 2019, we acquired all the outstanding shares of privately-held Cognigo Research Ltd., a provider of data discovery classification software designed to manage and protect critical data, for $58 million in cash. The preliminary acquisition date fair values of the assets acquired and liabilities assumed are as follows (in millions): Cash $ 2 Developed technology intangible asset 26 Goodwill 35 Total assets acquired 63 Liabilities assumed (5 ) Total purchase price $ 58 The results of operations related to this acquisition have been included in our condensed consolidated statements of operations from the acquisition date. Pro forma results of operations have not been presented because the acquisition was not material to our results of operations.

Goodwill and Purchased Intangib

Goodwill and Purchased Intangible Assets, Net	6 Months Ended
	Oct. 25, 2019
Goodwill And Intangible Assets Disclosure [Abstract]
Goodwill and Purchased Intangible Assets, Net	4. Goodwill and Purchased Intangible Assets, Net Goodwill activity is summarized as follows (in millions): Balance as of April 26, 2019 $ 1,735 Additions 35 Balance as of October 25, 2019 $ 1,770 Purchased intangible assets, net are summarized below (in millions): October 25, 2019 April 26, 2019 Gross Accumulated Net Gross Accumulated Net Assets Amortization Assets Assets Amortization Assets Developed technology $ 186 $ (135 ) $ 51 $ 160 $ (113 ) $ 47 Customer contracts/relationships — — — 41 (41 ) — Total purchased intangible assets $ 186 $ (135 ) $ 51 $ 201 $ (154 ) $ 47 Amortization expense for purchased intangible assets is summarized below (in millions): Three Months Ended Six Months Ended Statements of October 25, 2019 October 26, 2018 October 25, 2019 October 26, 2018 Operations Classification Developed technology $ 11 $ 9 $ 22 $ 18 Cost of revenues Customer contracts/relationships — 3 — 7 Operating expenses Total $ 11 $ 12 $ 22 $ 25 As of October 25, 2019, future amortization expense related to purchased intangible assets is as follows (in millions): Fiscal Year Amount Remainder of 2020 $ 16 2021 25 2022 9 2023 1 Total $ 51

Supplemental Financial Informat

Supplemental Financial Information	6 Months Ended
	Oct. 25, 2019
Supplemental Financial Information [Abstract]
Supplemental Financial Information	5. Supplemental Financial Information Cash, cash equivalents and restricted cash (in millions): The following table presents cash and cash equivalents as reported in our condensed consolidated balance sheets, as well as the sum of cash, cash equivalents and restricted cash as reported on our condensed consolidated statements of cash flows: October 25, 2019 April 26, 2019 Cash and cash equivalents $ 2,545 $ 2,325 Restricted cash 6 6 Cash, cash equivalents and restricted cash $ 2,551 $ 2,331 Inventories (in millions): October 25, 2019 April 26, 2019 Purchased components $ 14 $ 8 Finished goods 97 123 Inventories $ 111 $ 131 Property and equipment, net (in millions): October 25, 2019 April 26, 2019 Land $ 104 $ 106 Buildings and improvements 609 605 Leasehold improvements 86 86 Computer, production, engineering and other equipment 841 817 Computer software 358 357 Furniture and fixtures 106 105 Construction-in-progress 21 10 2,125 2,086 Accumulated depreciation and amortization (1,379 ) (1,327 ) Property and equipment, net $ 746 $ 759 In September 2017, we entered into an agreement to sell certain land and buildings located in Sunnyvale, California, through two separate and independent closings, the first of which was completed in the third quarter of fiscal 2018. The remaining properties, consisting of land, were classified as assets held for sale, and included as other current assets in our condensed consolidated balance sheets as of April 26, 2019. On August 29, 2019, the second closing occurred and we consummated the sale of the land, with a net book value of $53 million, and received cash proceeds of $96 million, resulting in a gain, net of direct selling costs, of $38 million. Other non-current assets (in millions): October 25, 2019 April 26, 2019 Deferred tax assets $ 223 $ 201 Operating lease ROU assets 143 — Other assets 348 389 Other non-current assets $ 714 $ 590 Other non-current assets as of October 25, 2019 and April 26, 2019 includes $77 million and $78 million, respectively, for our 49% non-controlling equity interest in Lenovo NetApp Technology Limited, a China-based entity that we formed with Lenovo (Beijing) Information Technology Ltd. in fiscal 2019. Accrued expenses (in millions): October 25, 2019 April 26, 2019 Accrued compensation and benefits $ 279 $ 433 Product warranty liabilities 26 25 Operating lease liabilities 49 — Other current liabilities 252 393 Accrued expenses $ 606 $ 851 Product warranty liabilities: Equipment and software systems sales include a standard product warranty. The following tables summarize the activity related to product warranty liabilities and their balances as reported in our condensed consolidated balance sheets (in millions): Three Months Ended Six Months Ended October 25, 2019 October 26, 2018 October 25, 2019 October 26, 2018 Balance at beginning of period $ 39 $ 38 $ 40 $ 40 Expense accrued during the period 7 6 12 10 Warranty costs incurred (6 ) (5 ) (12 ) (11 ) Balance at end of period $ 40 $ 39 $ 40 $ 39 October 25, 2019 April 26, 2019 Accrued expenses $ 26 $ 25 Other long-term liabilities 14 15 Total warranty liabilities $ 40 $ 40 Warranty expense accrued during the period includes amounts accrued for systems at the time of shipment, adjustments for changes in estimated costs for warranties on systems shipped in the period and changes in estimated costs for warranties on systems shipped in prior periods. Other long-term liabilities (in millions): October 25, 2019 April 26, 2019 Liability for uncertain tax positions $ 251 $ 252 Income taxes payable 399 447 Product warranty liabilities 14 15 Operating lease liabilities 102 — Other liabilities 71 83 Other long-term liabilities $ 837 $ 797 Other income, net (in millions): Three Months Ended Six Months Ended October 25, 2019 October 26, 2018 October 25, 2019 October 26, 2018 Interest income $ 12 $ 21 $ 31 $ 46 Interest expense (12 ) (14 ) (27 ) (28 ) Other income, net 3 — 14 7 Total other income, net $ 3 $ 7 $ 18 $ 25 Statements of cash flows additional information (in millions): Supplemental cash flow information related to our operating leases is included in Note 9 ─ Leases. Non-cash investing activities and other supplemental cash flow information are presented below: Six Months Ended October 25, 2019 October 26, 2018 Non-cash Investing Activities: Capital expenditures incurred but not paid $ 6 $ 7 Supplemental Cash Flow Information: Income taxes paid, net of refunds $ 260 $ 104 Interest paid $ 25 $ 26

Revenue

Revenue	6 Months Ended
	Oct. 25, 2019
Revenue From Contract With Customer [Abstract]
Revenue	6. Revenue Disaggregation of revenue To provide visibility into our transition from older products to our newer, higher growth products and clarity into the dynamics of our product revenue, we group our products by “Strategic” and “Mature” solutions. As our product portfolio evolves, market dynamics change, and management continues to assess of our largest growth opportunities, we periodically change how we group certain products. Beginning in fiscal 2020, Strategic includes All-flash FAS (AFF) products, including all related add-on hardware and operating system (OS) software, private cloud solutions (including SolidFire, converged and hyper-converged infrastructure products, StorageGrid), enterprise software license agreements (ELAs) and other optional add-on software products. Mature now includes Hybrid FAS products, including all related add-on hardware and OS software, original equipment manufacturers (OEM) products, and branded E-Series. Prior to this grouping change, Hybrid FAS products and branded E-Series were included in Strategic, while all add-on hardware and OS software were included in Mature. For comparability, Strategic and Mature revenues presented for the prior year periods have been recast based on the revised groupings. In addition to the sale of our products and solutions, we provide a variety of services to our customers, including software maintenance, hardware maintenance and other services including professional services, global support solutions, and customer education and training. The following table depicts the disaggregation of revenue by our products and services (in millions): Three Months Ended Six Months Ended October 25, 2019 October 26, 2018 October 25, 2019 October 26, 2018 Product revenues $ 771 $ 913 $ 1,415 $ 1,788 Strategic 442 485 779 960 Mature 329 428 636 828 Software maintenance revenues 254 236 504 465 Hardware maintenance and other services revenues 346 368 688 738 Hardware maintenance support contracts 286 303 570 606 Professional and other services 60 65 118 132 Net revenues $ 1,371 $ 1,517 $ 2,607 $ 2,991 Revenues by geographic region are presented in Note 15 – Segment, Geographic, and Significant Customer Information. Deferred revenue and financed unearned services revenue The following table summarizes the components of our deferred revenue and financed unearned services balance as reported in our condensed consolidated balance sheets (in millions): October 25, 2019 April 26, 2019 Deferred product revenue $ 85 $ 84 Deferred services revenue 3,314 3,502 Financed unearned services revenue 69 82 Total $ 3,468 $ 3,668 Reported as: Short-term $ 1,718 $ 1,825 Long-term 1,750 1,843 Total $ 3,468 $ 3,668 Deferred product revenue represents unrecognized revenue related to undelivered product commitments and other product deliveries that have not met all revenue recognition criteria. Deferred services revenue represents customer payments made in advance for services, which include software and hardware maintenance contracts and other services. Financed unearned services revenue represents undelivered services for which cash has been received under certain third-party financing arrangements. See Note 16 – Commitments and Contingencies for additional information related to these arrangements. The following tables summarize the activity related to deferred revenue and financed unearned services revenue (in millions): Six Months Ended October 25, 2019 October 26, 2018 Balance at beginning of period $ 3,668 $ 3,363 Additions 1,011 1,067 Revenue recognized during the period (1,211 ) (1,224 ) Balance at end of period $ 3,468 $ 3,206 During the six months ended October 25, 2019 and October 26, 2018, we recognized $1,045 million and $1,019 million, respectively, that was included in the deferred revenue and financed unearned services revenue balance at the beginning of the respective periods. As of October 25, 2019, the aggregate amount of the transaction price allocated to the remaining performance obligations related to customer contracts that are unsatisfied or partially unsatisfied was $3,468 million, which is equivalent to our deferred revenue and unearned services revenue balance. Because customer orders are typically placed on an as-needed basis, and cancellable without penalty prior to shipment, orders in backlog may not be a meaningful indicator of future revenue and have not been included in this amount. We expect to recognize as revenue approximately 49% of our deferred revenue and financed unearned services revenue balance in the next 12 months Deferred commissions The following tables summarize the activity related to deferred commissions and their balances as reported in our condensed consolidated balance sheets (in millions): Six Months Ended October 25, 2019 October 26, 2018 Balance at beginning of period $ 172 $ 137 Additions 32 35 Expense recognized during the period (50 ) (41 ) Balance at end of period $ 154 $ 131 October 25, 2019 April 26, 2019 Other current assets $ 66 $ 75 Other non-current assets 88 97 Total deferred commissions $ 154 $ 172

Financial Instruments and Fair

Financial Instruments and Fair Value Measurements	6 Months Ended
	Oct. 25, 2019
Investments Debt And Equity Securities [Abstract]
Financial Instruments and Fair Value Measurements	7. Financial Instruments and Fair Value Measurements The accounting guidance for fair value measurements provides a framework for measuring fair value on either a recurring or nonrecurring basis, whereby the inputs used in valuation techniques are assigned a hierarchical level. The following are the three levels of inputs to measure fair value: Level 1: Observable inputs that reflect quoted prices (unadjusted) for identical assets or liabilities in active markets. Level 2: Inputs that reflect quoted prices for identical assets or liabilities in less active markets; quoted prices for similar assets or liabilities in active markets; benchmark yields, reported trades, broker/dealer quotes, inputs other than quoted prices that are observable for the assets or liabilities; or inputs that are derived principally from or corroborated by observable market data by correlation or other means. Level 3: Unobservable inputs that reflect our own assumptions incorporated in valuation techniques used to measure fair value. These assumptions are required to be consistent with market participant assumptions that are reasonably available. We consider an active market to be one in which transactions for the asset or liability occur with sufficient frequency and volume to provide pricing information on an ongoing basis, and consider an inactive market to be one in which there are infrequent or few transactions for the asset or liability, the prices are not current, or price quotations vary substantially either over time or among market makers. Where appropriate, our own or the counterparty’s non-performance risk is considered in measuring the fair values of liabilities and assets, respectively. Investments The following is a summary of our investments (in millions): October 25, 2019 April 26, 2019 Cost or Estimated Cost or Estimated Amortized Gross Unrealized Fair Amortized Gross Unrealized Fair Cost Gains Losses Value Cost Gains Losses Value Corporate bonds $ 319 $ 1 $ — $ 320 $ 1,359 $ 2 $ (8 ) $ 1,353 U.S. Treasury and government debt securities 122 — — 122 214 — (1 ) 213 Certificates of deposit 150 — — 150 117 — — 117 Mutual funds 40 — — 40 35 — — 35 Total debt and equity securities $ 631 $ 1 $ — $ 632 $ 1,725 $ 2 $ (9 ) $ 1,718 During the six months ended October 25, 2019, we sold approximately $1.0 billion of corporate bonds held by foreign subsidiaries and recognized a gain on sale of $14 million, which is presented in other income, net on our condensed consolidated statement of operations. The following table presents the contractual maturities of our debt investments as of October 25, 2019 (in millions): Amortized Cost Fair Value Due in one year or less $ 464 $ 464 Due after one year through five years 122 123 Due after five years through ten years 5 5 $ 591 $ 592 Actual maturities may differ from the contractual maturities because borrowers may have the right to call or prepay certain obligations. Fair Value of Financial Instruments The following table summarizes our financial assets and liabilities measured at fair value on a recurring basis (in millions): October 25, 2019 Fair Value Measurements at Reporting Date Using Total Level 1 Level 2 Cash $ 2,395 $ 2,395 $ — Corporate bonds 320 — 320 U.S. Treasury and government debt securities 122 91 31 Certificates of deposit 150 — 150 Total cash, cash equivalents and short-term investments $ 2,987 $ 2,486 $ 501 Other items: Mutual funds (1) $ 9 $ 9 $ — Mutual funds (2) $ 31 $ 31 $ — Foreign currency exchange contracts assets (1) $ 3 $ — $ 3 Foreign currency exchange contracts liabilities (3) $ (1 ) $ — $ (1 ) (1) Reported as other current assets in the condensed consolidated balance sheets (2) Reported as other non-current assets in the condensed consolidated balance sheets (3) Reported as accrued expenses in the condensed consolidated balance sheets Our Level 2 debt instruments are held by a custodian who prices some of the investments using standard inputs in various asset price models or obtains investment prices from third-party pricing providers that incorporate standard inputs in various asset price models. These pricing providers utilize the most recent observable market information in pricing these securities or, if specific prices are not available for these securities, use other observable inputs like market transactions involving identical or comparable securities. We review Level 2 inputs and fair value for reasonableness and the values may be further validated by comparison to multiple independent pricing sources. In addition, we review third-party pricing provider models, key inputs and assumptions and understand the pricing processes at our third-party providers in determining the overall reasonableness of the fair value of our Level 2 debt instruments. As of October 25, 2019 and April 26, 2019, we have not made any adjustments to the prices obtained from our third-party pricing providers. Fair Value of Debt As of October 25, 2019 and April 26, 2019, the fair value of our long-term debt was approximately $1,174 million and $1,553 million, respectively. The fair value of our long-term debt was based on observable market prices in a less active market. The fair value of our commercial paper notes approximated their carrying value. All of our debt obligations are categorized as Level 2 instruments.

Financing Arrangements

Financing Arrangements	6 Months Ended
	Oct. 25, 2019
Debt Disclosure [Abstract]
Financing Arrangements	8. Financing Arrangements Long-Term Debt The following table summarizes information relating to our long-term debt, which we collectively refer to as our Senior Notes (in millions, except interest rates): October 25, 2019 April 26, 2019 Effective Effective Amount Interest Rate Amount Interest Rate 2.00% Senior Notes Due September 2019 $ — N/A $ 400 2.32 % 3.375% Senior Notes Due June 2021 500 3.54 % 500 3.54 % 3.25% Senior Notes Due December 2022 250 3.43 % 250 3.43 % 3.30% Senior Notes Due September 2024 400 3.42 % 400 3.42 % Total principal amount 1,150 1,550 Unamortized discount and issuance costs (5 ) (6 ) Total senior notes 1,145 1,544 Less: Current portion of long-term debt — (400 ) Total long-term debt $ 1,145 $ 1,144 N/A – Not Applicable Senior Notes On September 27, 2019, we made an aggregate cash payment of $400 million to extinguish our 2.00% Senior Notes at maturity. Our 3.30% Senior Notes, with a principal amount of $400 million, were issued in September 2017. Interest on these Senior Notes is paid semi-annually in March and September. Our 3.375% Senior Notes and 3.25% Senior Notes, with principal amounts of $500 million and $250 million, respectively, were issued in June 2014 and December 2012, respectively. Interest on these Senior Notes is paid semi-annually in June and December. Our Senior Notes, which are unsecured, unsubordinated obligations, rank equally in right of payment with any existing and future senior unsecured indebtedness. We may redeem the Senior Notes in whole or in part, at any time at our option at specified redemption prices. In addition, upon the occurrence of certain change of control triggering events, we may be required to repurchase the Senior Notes under specified terms. The Senior Notes also include covenants that limit our ability to incur debt secured by liens on assets or on shares of stock or indebtedness of our subsidiaries; to engage in certain sale and lease-back transactions; and to consolidate, merge or sell all or substantially all of our assets. As of October 25, 2019, we were in compliance with all covenants associated with the Senior Notes. As of October 25, 2019, our aggregate future principal debt maturities are as follows (in millions): Fiscal Year Amount 2022 $ 500 2023 250 2025 400 Total $ 1,150 Commercial Paper Program and Credit Facility We have a commercial paper program (the Program), under which we may issue unsecured commercial paper notes. Amounts available under the Program, as amended in July 2017, may be borrowed, repaid and re-borrowed, with the aggregate face or principal amount of the notes outstanding under the Program at any time not to exceed $1.0 billion. The proceeds from the issuance of the notes are used for general corporate purposes. As of October 25, 2019, we had commercial paper notes outstanding with an aggregate principal amount of $499 million, a weighted-average interest rate of 2.20% and maturities ranging from 7 days to 91 days. In connection with the Program, we have a senior unsecured credit agreement with a syndicated group of lenders that expires on December 10, 2021. The credit agreement, as amended in July 2017, provides a $1.0 billion revolving unsecured credit facility, with a $50 million letter of credit sub-facility, that serves as a back-up for the Program. Proceeds from the facility may also be used for general corporate purposes to the extent that the credit facility exceeds the outstanding debt issued under the Program . The credit agreement includes options that allow us to request an increase in the facility of up to an additional $300 million and to extend its maturity date for two one-year

Leases

Leases	6 Months Ended
	Oct. 25, 2019
Leases [Abstract]
Leases	9. Leases We lease real estate, equipment and automobiles in the U.S. and internationally. Our real estate leases, which are responsible for the majority of our aggregate ROU asset and liability balances, include leases for office space, data centers and other facilities, and have remaining lease terms of up to 15 years. Some of these leases contain options that allow us to extend or terminate the lease agreement. Our equipment leases are primarily for servers and networking equipment and have remaining lease terms of up to 4 years, while our automobile leases have remaining lease terms of up to 5 years. All our leases are classified as operating leases except for certain immaterial equipment finance leases. The components of lease cost related to our operating leases were as follows (in millions): Three Months Ended Six Months Ended October 25, 2019 October 25, 2019 Operating lease cost $ 15 $ 29 Variable lease cost 4 8 Total lease cost $ 19 $ 37 Variable lease cost is primarily attributable to amounts paid to lessors for common area maintenance and utility charges under our real estate leases. The supplemental cash flow information related to our operating leases is as follows (in millions): Six Months Ended October 25, 2019 Cash paid for amounts included in the measurement of operating lease liabilities $ 29 Right-of-use assets obtained in exchange for new operating lease obligations $ 21 The supplemental balance sheet information related to our operating leases is as follows (in millions, except lease term and discount rate): October 25, 2019 Other non-current assets $ 143 Total operating lease ROU assets $ 143 Accrued expenses $ 49 Other long-term liabilities 102 Total operating lease liabilities $ 151 Weighted Average Remaining Lease Term 3.9 years Weighted Average Discount Rate 2.6 % Future minimum operating lease payments as of October 25, 2019 are as follows (in millions): Operating Leases Fiscal 2020 (remainder) $ 28 Fiscal 2021 46 Fiscal 2022 34 Fiscal 2023 20 Fiscal 2024 14 Thereafter 18 Total lease payments $ 160 Less: Interest (9 ) Total $ 151 Prior to our adoption of the new lease standard, future minimum operating lease payments as of April 26, 2019, which were undiscounted and excluded non-lease components, were as follows (in millions): Operating Leases Fiscal 2020 $ 47 Fiscal 2021 38 Fiscal 2022 26 Fiscal 2023 14 Fiscal 2024 10 Thereafter 16 Total lease payments $ 151

Stockholders' Equity

Stockholders' Equity	6 Months Ended
	Oct. 25, 2019
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Stockholders' Equity	10. Stockholders’ Equity Equity Incentive Awards As of October 25, 2019, we have certain equity incentive awards (awards) outstanding, which include stock options and restricted stock units (RSUs), including time-based RSUs and performance-based RSUs (PBRSUs). Also outstanding are purchase rights under our Employee Stock Purchase Plan (ESPP). During the second quarter of fiscal 2020, the 1999 Stock Option Plan, under which stock options and RSUs are granted, was extended for a 10 year term. Stock Options Less than 1 million options were outstanding as of October 25, 2019 and April 26, 2019. Information related to our stock options is summarized below (in millions): Six Months Ended October 25, 2019 October 26, 2018 Intrinsic value of exercises $ 3 $ 22 Proceeds received from exercises $ 2 $ 17 Fair value of options vested $ — $ 1 The aggregate intrinsic value represents the pre-tax difference between the exercise price of stock options and the quoted market price of our stock on that day for all in-the-money options. Restricted Stock Units In the six months ended October 25, 2019, The following table summarizes information related to our RSUs, including PBRSUs, (in millions, except fair value): Number of Shares Weighted- Average Grant Date Fair Value Outstanding as of April 26, 2019 8 $ 45.68 Granted 3 $ 52.21 Vested (3 ) $ 37.88 Forfeited (1 ) $ 47.64 Outstanding as of October 25, 2019 7 $ 51.25 We primarily use the net share settlement approach upon vesting, where a portion of the shares are withheld as settlement of employee withholding taxes, which decreases the shares issued to the employee by a corresponding value. The number and value of the shares netted for employee taxes are summarized in the table below (in millions): Six Months Ended October 25, 2019 October 26, 2018 Shares withheld for taxes 1 1 Fair value of shares withheld $ 74 $ 89 Employee Stock Purchase Plan The following table summarizes activity related to the purchase rights issued under the ESPP (in millions): Six Months Ended October 25, 2019 October 26, 2018 Shares issued under the ESPP 1 2 Proceeds from issuance of shares $ 54 $ 49 Stock-Based Compensation Expense Stock-based compensation expense is included in the condensed consolidated statements of operations as follows (in millions): Three Months Ended Six Months Ended October 25, 2019 October 26, 2018 October 25, 2019 October 26, 2018 Cost of product revenues $ 1 $ — $ 2 $ 1 Cost of hardware maintenance and other services revenues 3 2 5 5 Sales and marketing 17 16 35 33 Research and development 13 12 28 24 General and administrative 6 8 12 15 Total stock-based compensation expense $ 40 $ 38 $ 82 $ 78 Income tax benefit for stock-based compensation expense $ 4 $ 5 $ 8 $ 10 As of October 25, 2019, total unrecognized compensation expense related to our equity awards was $339 million, which is expected to be recognized on a straight-line basis over a weighted-average remaining service period of 2.3 years. Stock Repurchase Program Our Board of Directors has authorized the repurchase of up to $13.6 billion of our common stock. Under this program, which we may suspend or discontinue at any time, we may purchase shares of our outstanding common stock through solicited or unsolicited transactions in the open market, in privately negotiated transactions, through accelerated share repurchase programs, pursuant to a Rule 10b5-1 plan or in such other manner as deemed appropriate by our management. The following table summarizes activity related to this program for the six months ended October 25, 2019 (in millions, except per share amounts): Number of shares repurchased 14 Average price per share $ 55.06 Aggregate purchase price $ 750 Remaining authorization at end of period $ 1,139 The aggregate purchase price of our stock repurchases for the six months ended October 25, 2019 consisted of $750 million of open market purchases, of which $398 million and $352 million were allocated to additional paid-in capital and retained earnings, respectively. Since the May 13, 2003 inception of our stock repurchase program through October 25, 2019, we repurchased a total of 327 million shares of our common stock at an average price of $38.20 per share, for an aggregate purchase price of $12.5 billion. Dividends The following is a summary of our activities related to dividends on our common stock (in millions, except per share amounts): Six Months Ended October 25, 2019 October 26, 2018 Dividends per share declared $ 0.96 $ 0.80 Dividend payments allocated to additional paid-in capital $ 226 $ 207 Dividend payments allocated to retained earnings $ — $ — On November 13, 2019, we declared a cash dividend of $0.48 per share of common stock, payable on January 22, 2020 to holders of record as of the close of business on January 3, 2020. The timing and amount of future dividends will depend on market conditions, corporate business and financial considerations and regulatory requirements. All dividends declared have been determined by us to be legally authorized under the laws of the state in which we are incorporated. Accumulated Other Comprehensive Income (Loss) Changes in accumulated other comprehensive income (loss) (AOCI) by component, net of tax, are summarized below (in millions): Foreign Currency Translation Adjustments Defined Benefit Obligation Adjustments Unrealized Gains (Losses) on Available- for-Sale Securities Unrealized Gains (Losses) on Derivative Instruments Total Balance as of April 26, 2019 $ (34 ) $ (3 ) $ (7 ) $ 1 $ (43 ) Other comprehensive income (loss), net of tax (2 ) — 22 1 21 Amounts reclassified from AOCI, net of tax — — (14 ) — (14 ) Total other comprehensive income (2 ) — 8 1 7 Balance as of October 25, 2019 $ (36 ) $ (3 ) $ 1 $ 2 $ (36 ) During the first six months of fiscal 2020, realized gains of $14 million from the sale of available-for-sale securities were recorded in other income, net on our condensed consolidated statements of operations.

Derivatives and Hedging Activit

Derivatives and Hedging Activities	6 Months Ended
	Oct. 25, 2019
Derivative Instruments And Hedging Activities Disclosure [Abstract]
Derivatives and Hedging Activities	11. Derivatives and Hedging Activities We use derivative instruments to manage exposures to foreign currency risk. Our primary objective in holding derivatives is to reduce the volatility of earnings and cash flows associated with changes in foreign currency exchange rates. The maximum length of time over which forecasted foreign currency denominated revenues are hedged is 12 months. The program is not designated for trading or speculative purposes. Our derivatives expose us to credit risk to the extent that the counterparties may be unable to meet the terms of our agreements with them. We seek to mitigate such risk by limiting our counterparties to major financial institutions. In addition, the potential risk of loss with any one counterparty resulting from this type of credit risk is monitored on an ongoing basis. We also have in place master netting arrangements to mitigate the credit risk of our counterparties and to potentially reduce our losses due to counterparty nonperformance. We present our derivative instruments as net amounts in our condensed consolidated balance sheets. The gross and net fair value amounts of such instruments were not material as of October 25, 2019 or April 26, 2019. All contracts have a maturity of less than 12 months. The notional amount of our outstanding U.S. dollar equivalent foreign currency exchange forward contracts consisted of the following (in millions): October 25, 2019 April 26, 2019 Cash Flow Hedges Forward contracts purchased $ 305 $ 103 Balance Sheet Contracts Forward contracts sold $ 114 $ 121 Forward contracts purchased $ 145 $ 363 The effect of cash flow hedges recognized in net revenues on our condensed consolidated statements of operations was immaterial in all periods presented. The effect of derivative instruments not designated as hedging instruments recognized in other income, net on our condensed consolidated statements of operations was as follows (in millions): Three Months Ended Six Months Ended October 25, 2019 October 26, 2018 October 25, 2019 October 26, 2018 Gain (Loss) Recognized in Income Gain (Loss) Recognized in Income Foreign currency exchange contracts $ — $ 2 $ (3 ) $ 12

Restructuring Charges

Restructuring Charges	6 Months Ended
	Oct. 25, 2019
Restructuring And Related Activities [Abstract]
Restructuring Charges	12. Restructuring Charges In the first quarter of fiscal 2020, we announced a restructuring plan (the May 2019 Plan) to reduce costs and redirect resources to our highest return activities, which included a reduction in our global workforce by approximately 2%. Charges related to the plan consisted primarily of employee severance-related costs. Substantially all activities under the plan have been completed. Management has previously approved several restructuring actions, including the May 2018 Plan and April 2019 Plan, under which we reduced our global workforce by less than 2%, and approximately 1%, respectively. Charges related to our restructuring plans consisted primarily of employee severance-related costs. Substantially all activities under the May 2018 Plan were completed as of the end of fiscal 2019. We expect to complete all activities associated with the April 2019 plan by the end of the third quarter of fiscal 2020 with no significant additional charges. Activities related to our restructuring plans are summarized as follows (in millions): Six Months Ended Six Months Ended October 25, 2019 October 26, 2018 May 2019 Plan April 2019 Plan November Plan Total May 2018 Plan November 2016 Plan Total Balance at beginning of period $ — $ 15 $ 4 $ 19 $ — $ 6 $ 6 Net charges 21 — — 21 19 — 19 Cash payments (19 ) (12 ) — (31 ) (17 ) (1 ) (18 ) Other — — (4 ) (4 ) — — — Balance at end of period $ 2 $ 3 $ — $ 5 $ 2 $ 5 $ 7 Upon adoption of the new lease accounting standard in the first quarter of fiscal 2020, the remaining lease-related liabilities associated with the November 2016 Plan were recognized as a reduction to the lease right-of-use asset recorded at transition.

Income Taxes

Income Taxes	6 Months Ended
	Oct. 25, 2019
Income Tax Disclosure [Abstract]
Income Taxes	13. Income Taxes Our effective tax rates for the periods presented were as follows: Six Months Ended October 25, 2019 October 26, 2018 Effective tax rates 17.2 % 7.3 % Our effective tax rates reflect the impact of a significant amount of our earnings, primarily income from our European operations, being taxed in foreign jurisdictions at rates below the United States (U.S.) statutory tax rate. The differences in effective tax rates for the six months ended October 25, 2019 and October 26, 2018 were primarily due to discrete tax benefits related to the adoption of the new revenue standard in fiscal 2019, the discrete tax charge on the sale of land in Sunnyvale, California in fiscal 2020 and the differences in discrete benefits for stock-based compensation. On December 22, 2017, the Tax Cuts and Jobs Act (“TCJA”) was enacted into law. The TCJA made significant changes to the U.S. corporate income tax system including a reduction of the U.S. federal corporate income tax rate from 35% to 21%, the imposition of a one-time transition tax on deferred foreign earnings, and the creation of new taxes on certain foreign-sourced earnings. As of April 26, 2019, we had completed the accounting for the tax impacts of the TCJA, however, we will continue to assess the impact of further guidance from federal and state tax authorities on our business and consolidated financial statements, and recognize any adjustments in the period in which they are determined. During fiscal 2019, we adopted the new revenue accounting standard and for the six months ended October 26, 2018, we recognized a $34 million discrete tax benefit for adjustments to certain intercompany transactions resulting from the retrospective application of the new revenue accounting standard. As of October 25, 2019, we had $294 million of gross unrecognized tax benefits. Inclusive of penalties, interest and certain income tax benefits, $246 million would affect our provision for income taxes if recognized, and $251 million has been recorded in other long-term liabilities. We are currently undergoing state income tax audits in the U.S. and audits in several foreign tax jurisdictions. Transfer pricing calculations are key issues under audits in various jurisdictions, and are often subject to dispute and appeals. The IRS has concluded the examination of our tax returns for our fiscal years through 2013. In September 2010, the Danish Tax Authorities issued a decision concluding that distributions declared in 2005 and 2006 by our Danish subsidiary were subject to Danish at-source dividend withholding tax. We do not believe that our Danish subsidiary is liable for such withholding tax and filed an appeal with the Danish Tax Tribunal. In December 2011, the Danish Tax Tribunal issued a ruling in favor of NetApp. The Danish tax examination agency appealed this decision at the Danish High Court (DHC) in March 2012. In February 2016, the DHC requested a preliminary ruling from the Court of Justice of the European Union (CJEU). Parties were heard before the court in October 2017. In March 2018, the Advocate General issued an opinion which was largely in favor of NetApp. The CJEU was not bound by the opinion of the Advocate General and issued its preliminary ruling in February 2019. The CJEU ruling did not preclude the Danish Tax Authorities from imposing withholding tax on distributions based on the benefits of certain European Union directives. The preliminary ruling will be reviewed and may be subjected to additional briefing by the DHC. Once complete, the DHC will then issue its final decision. While the timing and outcome of a final decision on this matter is uncertain, we believe it is more likely than not that our distributions were not subject to withholding tax and we intend to vigorously defend any withholding tax claims by the Danish Tax Authorities. We continue to monitor the progress of ongoing discussions with tax authorities and the impact, if any, of the expected expiration of the statute of limitations in various taxing jurisdictions. We believe that within the next 12 months, it is reasonably possible that either certain audits will conclude, certain statutes of limitations will lapse, or both. As a result of uncertainties regarding tax audits and their possible outcomes, an estimate of the range of possible impacts to unrecognized tax benefits in the next twelve months cannot be made at this time.

Net Income per Share

Net Income per Share	6 Months Ended
	Oct. 25, 2019
Earnings Per Share [Abstract]
Net Income per Share	14. Net Income per Share The following is a calculation of basic and diluted net income per share (in millions, except per share amounts): Three Months Ended Six Months Ended October 25, 2019 October 26, 2018 October 25, 2019 October 26, 2018 Numerator: Net income $ 243 $ 241 $ 346 $ 524 Denominator: Shares used in basic computation 235 258 237 260 Dilutive impact of employee equity award plans 1 6 3 7 Shares used in diluted computation 236 264 240 267 Net Income per Share: Basic $ 1.03 $ 0.93 $ 1.46 $ 2.02 Diluted $ 1.03 $ 0.91 $ 1.44 $ 1.96 Six million and three million potential shares from outstanding employee equity awards were excluded from the diluted net income per share calculations for the three and six months ended October 25, 2019, respectively, as their inclusion would have been anti-dilutive, while no potential shares were excluded from the calculation for the three or six months ended October 26, 2018.

Segment, Geographic, and Signif

Segment, Geographic, and Significant Customer Information	6 Months Ended
	Oct. 25, 2019
Segment Reporting [Abstract]
Segment, Geographic, and Significant Customer Information	15. Segment, Geographic, and Significant Customer Information We operate in one industry segment: the design, manufacturing, marketing, and technical support of high-performance storage and data management solutions. We conduct business globally, and our sales and support activities are managed on a geographic basis. Our management reviews financial information presented on a consolidated basis, accompanied by disaggregated information it receives from our internal management system about revenues by geographic region, based on the location from which the customer relationship is managed, for purposes of allocating resources and evaluating financial performance. We do not allocate costs of revenues, research and development, sales and marketing, or general and administrative expenses to our geographic regions in this internal management reporting because management does not review operations or operating results, or make planning decisions, below the consolidated entity level. Summarized revenues by geographic region based on information from our internal management system and utilized by our Chief Executive Officer, who is considered our Chief Operating Decision Maker, is as follows (in millions): Three Months Ended Six Months Ended October 25, 2019 October 26, 2018 October 25, 2019 October 26, 2018 United States, Canada and Latin America (Americas) $ 771 $ 868 $ 1,406 $ 1,711 Europe, Middle East and Africa (EMEA) 402 429 804 859 Asia Pacific (APAC) 198 220 397 421 Net revenues $ 1,371 $ 1,517 $ 2,607 $ 2,991 Americas revenues consist of sales to Americas commercial and U.S. public sector markets. Sales to customers inside the U.S. were $703 million and $789 million during the three months ended October 25, 2019 and October 26, 2018, respectively, and were $1,277 million and $1,550 million during the six months ended October 25, 2019 and October 26, 2018, respectively. The majority of our assets, excluding cash, cash equivalents, short-term investments and accounts receivable, were attributable to our domestic operations. The following table presents cash, cash equivalents and short-term investments held in the U.S. and internationally in various foreign subsidiaries (in millions): October 25, 2019 April 26, 2019 U.S. $ 125 $ 159 International 2,862 3,740 Total $ 2,987 $ 3,899 With the exception of property and equipment, we do not identify or allocate our long-lived assets by geographic area. The following table presents property and equipment information for geographic areas based on the physical location of the assets (in millions): October 25, 2019 April 26, 2019 U.S. $ 559 $ 572 International 187 187 Total $ 746 $ 759 The following customers, each of which is a distributor, accounted for 10% or more of our net revenues: Three Months Ended Six Months Ended October 25, 2019 October 26, 2018 October 25, 2019 October 26, 2018 Arrow Electronics, Inc. 24 % 24 % 24 % 23 % Tech Data Corporation 21 % 21 % 21 % 19 % The following customers accounted for 10% or more of accounts receivable: October 25, 2019 April 26, 2019 Arrow Electronics, Inc. 11 % 11 % Tech Data Corporation 20 % 24 %

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Oct. 25, 2019
Commitments And Contingencies Disclosure [Abstract]
Commitments and Contingencies	16. Commitments and Contingencies Purchase Orders and Other Commitments In the ordinary course of business, we make commitments to third-party contract manufacturers to manage manufacturer lead times and meet product forecasts, and to other parties to purchase various key components used in the manufacturing of our products. A significant portion of our reported purchase commitments arising from these agreements consists of firm, non-cancelable, and unconditional commitments. As of October 25, 2019, we had $447 million in non-cancelable purchase commitments for inventory. We record a liability for firm, non-cancelable and unconditional purchase commitments for quantities in excess of our future demand forecasts consistent with the valuation of our excess and obsolete inventory. As of October 25, 2019 and April 26, 2019, such liability amounted to $13 million and $16 million, respectively, and is included in accrued expenses in our condensed consolidated balance sheets. To the extent that such forecasts are not achieved, our commitments and associated accruals may change. In addition to inventory commitments with contract manufacturers and component suppliers, we have open purchase orders and contractual obligations associated with our ordinary course of business for which we have not yet received goods or services. As of October 25, 2019, we had $5 million in construction related obligations and $244 million in other purchase obligations. Financing Guarantees While most of our arrangements for sales include short-term payment terms, from time to time we provide long-term financing to creditworthy customers. We have generally sold receivables financed through these arrangements on a non-recourse basis to third party financing institutions within 10 days of the contracts’ dates of execution, and we classify the proceeds from these sales as cash flows from operating activities in our condensed consolidated statements of cash flows. We account for the sales of these receivables as “true sales” as defined in the accounting standards on transfers of financial assets, as we are considered to have surrendered control of these financing receivables. Provided all other revenue recognition criteria have been met, we recognize product revenues for these arrangements, net of any payment discounts from financing transactions, upon product acceptance. We sold $34 million and $43 million of receivables during the six months ended October 25, 2019 and October 26, 2018, respectively. In addition, we enter into arrangements with leasing companies for the sale of our hardware systems products. These leasing companies, in turn, lease our products to end-users. The leasing companies generally have no recourse to us in the event of default by the end-user and we recognize revenue upon delivery to the end-user customer, if all other revenue recognition criteria have been met. Some of the leasing arrangements described above have been financed on a recourse basis through third-party financing institutions. Under the terms of recourse leases, which are generally three years or less, we remain liable for the aggregate unpaid remaining lease payments to the third-party leasing companies in the event of end-user customer default. These arrangements are generally collateralized by a security interest in the underlying assets. Where we provide a guarantee for recourse leases and collectability is probable, we account for these transactions as sales type leases. If collectability is not probable, the cash received is recorded as a deposit liability and revenue is deferred until the arrangement is deemed collectible. For leases that we are not a party to, other than providing recourse, we recognize revenue when control is transferred. As of October 25, 2019 and April 26, 2019, the aggregate amount by which such contingencies exceeded the associated liabilities was not significant. To date, we have not experienced significant losses under our lease financing programs or other financing arrangements. We have entered into service contracts with certain of our end-user customers that are supported by third-party financing arrangements. If a service contract is terminated as a result of our non-performance under the contract or our failure to comply with the terms of the financing arrangement, we could, under certain circumstances, be required to acquire certain assets related to the service contract or to pay the aggregate unpaid financing payments under such arrangements. As of October 25, 2019, we have not been required to make any payments under these arrangements, and we believe the likelihood of having to acquire a material amount of assets or make payments under these arrangements is remote. The portion of the financial arrangement that represents unearned services revenue is included in deferred revenue and financed unearned services revenue in our condensed consolidated balance sheets . Legal Contingencies When a loss is considered probable and reasonably estimable, we record a liability in the amount of our best estimate for the ultimate loss. However, the likelihood of a loss with respect to a particular contingency is often difficult to predict and determining a meaningful estimate of the loss or a range of loss may not be practicable based on the information available and the potential effect of future events and decisions by third parties that will determine the ultimate resolution of the contingency. On August 14, 2019, a purported securities class action lawsuit was filed in the United States District Court for the Northern District of California, naming as defendants NetApp and certain of our executive officers. The complaint alleges that the defendants violated Section 10(b) and 20(a) of the Securities Exchange Act of 1934, as amended, and SEC Rule 10b-5, by making materially false or misleading statements with respect to our financial guidance for fiscal 2020, as provided on May 22, 2019. Members of the alleged class are purchasers of the Company’s stock between May 22, 2019 and August 1, 2019, the date we provided revised financial guidance for fiscal 2020. The complaint alleges unspecified damages based on the decline in the market price of our shares following the issuance of the revised guidance on August 1, 2019. We believe the complaint is without merit and intend to defend the case vigorously. We are subject to various other legal proceedings and claims that arise in the normal course of business. We may, from time to time, receive claims that we are infringing third parties’ intellectual property rights, including claims for alleged patent infringement brought by non-practicing entities. We are currently involved in patent litigations brought by non-practicing entities and other third parties. We believe we have strong arguments that our products do not infringe and/or the asserted patents are invalid, and we intend to vigorously defend against the plaintiffs’ claims. However, there is no guarantee that we will prevail at trial and if a jury were to find that our products infringe, we could be required to pay significant monetary damages, and may cause product shipment delays, require us to redesign our products, or require us to enter into royalty or licensing agreements. Although management at present believes that the ultimate outcome of these proceedings, individually and in the aggregate, will not materially harm our financial position, results of operations, cash flows, or overall trends, legal proceedings are subject to inherent uncertainties, and unfavorable rulings or other events could occur. Unfavorable resolutions could include significant monetary damages. In addition, in matters for which injunctive relief or other conduct remedies are sought, unfavorable resolutions could include an injunction or other order prohibiting us from selling one or more products at all or in particular ways or requiring other remedies. An unfavorable outcome may result in a material adverse impact on our business, results of operations, financial position, and overall trends. No material accrual has been recorded as of October 25, 2019 related to such matters.

Description of Business and S_2

Description of Business and Significant Accounting Policies (Policies)	6 Months Ended
	Oct. 25, 2019
Accounting Policies [Abstract]
Basis of Presentation and Preparation	Basis of Presentation and Preparation Our fiscal year is reported on a 52- or 53-week year ending on the last Friday in April. An additional week is included in the first fiscal quarter approximately every six years to realign fiscal months with calendar months. Fiscal years 2020 and 2019, ending on April 24, 2020, and April 26, 2019, respectively, are each 52-week years, with 13 weeks in each of their quarters. The accompanying unaudited condensed consolidated financial statements have been prepared by the Company, and reflect all adjustments, consisting only of normal recurring adjustments, that are, in the opinion of management, necessary for the fair presentation of our financial position, results of operations, comprehensive income, cash flows and stockholders’ equity for the interim periods presented. The statements have been prepared in accordance with accounting principles generally accepted in the United States of America (GAAP) for interim financial information. Accordingly, these statements do not include all information and footnotes required by GAAP for annual consolidated financial statements, and should be read in conjunction with our audited consolidated financial statements as of and for the fiscal year ended April 26, 2019 contained in our Annual Report on Form 10-K. The results of operations for the three and six months ended October 25, 2019 are not necessarily indicative of the operating results to be expected for the full fiscal year or future operating periods. The preparation of the condensed 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 financial statements and the reported amounts of revenues and expenses during the reporting periods. Such estimates include, but are not limited to, revenue recognition, reserves and allowances; inventory valuation and purchase order accruals; valuation of goodwill and intangibles; restructuring reserves; product warranties; employee compensation and benefit accruals; stock-based compensation; loss contingencies; investment impairments; income taxes and fair value measurements. Actual results could differ materially from those estimates. Accounting Changes In February 2016, the FASB issued an accounting standards update on financial reporting for leasing arrangements, including requiring lessees to recognize an operating lease with a term greater than one year on their balance sheets as a right-of-use (ROU) asset and corresponding lease liability, measured at the present value of the lease payments. In the first quarter of fiscal 2020, we adopted this new standard using the modified retrospective approach, electing the optional transition approach of not adjusting our comparative period financial statements for the impacts of adoption. We also elected the package of practical expedients that did not require us to reassess existing leases under the new guidance, and the practical expedient to not separate lease and non-lease components for all leases. Adoption of the new standard on April 27, 2019 resulted in the recognition of approximately $149 million of operating lease ROU assets, net of deferred rent and lease restructuring liabilities, $158 million of lease liabilities, and a cumulative-effect adjustment to retained earnings of $6 million on our condensed consolidated balance sheets. Adoption of the standard did not have a material impact on our condensed consolidated statements of operations or condensed consolidated statements of cash flows. Additional information is presented below and in Note 9 – Leases. Leases − We determine if an arrangement is or contains a lease at inception, and we classify leases as operating or finance leases at commencement. In our condensed consolidated balance sheets, operating lease ROU assets are included in other non-current assets, while finance lease ROU assets are included in property and equipment, net. Lease liabilities for both types of leases are included in accrued expenses and other long-term liabilities. ROU assets represent our right to use an underlying asset for the lease term and lease liabilities represent our obligation to make lease payments over that term. Operating and finance lease ROU assets and liabilities are recognized at commencement based on the present value of lease payments over the lease term. ROU assets also include any lease payments made prior to lease commencement and exclude lease incentives. The lease term is the noncancelable period of the lease and includes options to extend or terminate the lease when it is reasonably certain that an option will be exercised. As the rate implicit in our leases is typically not readily determinable, in computing the present value of lease payments we generally use our incremental borrowing rate based on information available at the commencement date. Variable lease payments not dependent on an index or rate are expensed as incurred and not included within the calculation of ROU assets and lease liabilities. Lease expense for lease payments is recognized on a straight-line basis over the lease term. We do not separate non-lease components from lease components for any class of leases, and we do not recognize ROU assets and lease liabilities for leases with a lease term of twelve months or less. There have been no other significant changes in our significant accounting policies as of and for the six months ended October 25, 2019, as compared to the significant accounting policies described in our Annual Report on Form 10-K for the fiscal year ended April 26, 2019.
Accounting Standards on Transfers of Financial Assets	While most of our arrangements for sales include short-term payment terms, from time to time we provide long-term financing to creditworthy customers. We have generally sold receivables financed through these arrangements on a non-recourse basis to third party financing institutions within 10 days of the contracts’ dates of execution, and we classify the proceeds from these sales as cash flows from operating activities in our condensed consolidated statements of cash flows. We account for the sales of these receivables as “true sales” as defined in the accounting standards on transfers of financial assets, as we are considered to have surrendered control of these financing receivables. Provided all other revenue recognition criteria have been met, we recognize product revenues for these arrangements, net of any payment discounts from financing transactions, upon product acceptance. We sold $34 million and $43 million of receivables during the six months ended October 25, 2019 and October 26, 2018, respectively.
Debt	The portion of the financial arrangement that represents unearned services revenue is included in deferred revenue and financed unearned services revenue in our condensed consolidated balance sheets .

Business Combination (Tables)

Business Combination (Tables)	6 Months Ended
	Oct. 25, 2019
Business Combinations [Abstract]
Summary of Preliminary Acquisition Date Fair Values of Assets Acquired and Liabilities Assumed	The preliminary acquisition date fair values of the assets acquired and liabilities assumed are as follows (in millions): Cash $ 2 Developed technology intangible asset 26 Goodwill 35 Total assets acquired 63 Liabilities assumed (5 ) Total purchase price $ 58

Goodwill and Purchased Intang_2

Goodwill and Purchased Intangible Assets, Net (Tables)	6 Months Ended
	Oct. 25, 2019
Goodwill And Intangible Assets Disclosure [Abstract]
Schedule of Goodwill Activity	Goodwill activity is summarized as follows (in millions): Balance as of April 26, 2019 $ 1,735 Additions 35 Balance as of October 25, 2019 $ 1,770
Purchased Intangible Assets, Net	Purchased intangible assets, net are summarized below (in millions): October 25, 2019 April 26, 2019 Gross Accumulated Net Gross Accumulated Net Assets Amortization Assets Assets Amortization Assets Developed technology $ 186 $ (135 ) $ 51 $ 160 $ (113 ) $ 47 Customer contracts/relationships — — — 41 (41 ) — Total purchased intangible assets $ 186 $ (135 ) $ 51 $ 201 $ (154 ) $ 47
Amortization Expense for Purchased Intangible Assets	Amortization expense for purchased intangible assets is summarized below (in millions): Three Months Ended Six Months Ended Statements of October 25, 2019 October 26, 2018 October 25, 2019 October 26, 2018 Operations Classification Developed technology $ 11 $ 9 $ 22 $ 18 Cost of revenues Customer contracts/relationships — 3 — 7 Operating expenses Total $ 11 $ 12 $ 22 $ 25
Future Amortization Expense Related to Purchased Intangible Assets	As of October 25, 2019, future amortization expense related to purchased intangible assets is as follows (in millions): Fiscal Year Amount Remainder of 2020 $ 16 2021 25 2022 9 2023 1 Total $ 51

Supplemental Financial Inform_2

Supplemental Financial Information (Tables)	6 Months Ended
	Oct. 25, 2019
Supplemental Financial Information [Abstract]
Cash, Cash Equivalents and Restricted Cash	Cash, cash equivalents and restricted cash (in millions): The following table presents cash and cash equivalents as reported in our condensed consolidated balance sheets, as well as the sum of cash, cash equivalents and restricted cash as reported on our condensed consolidated statements of cash flows: October 25, 2019 April 26, 2019 Cash and cash equivalents $ 2,545 $ 2,325 Restricted cash 6 6 Cash, cash equivalents and restricted cash $ 2,551 $ 2,331
Inventories	Inventories (in millions): October 25, 2019 April 26, 2019 Purchased components $ 14 $ 8 Finished goods 97 123 Inventories $ 111 $ 131
Property and Equipment, Net	Property and equipment, net (in millions): October 25, 2019 April 26, 2019 Land $ 104 $ 106 Buildings and improvements 609 605 Leasehold improvements 86 86 Computer, production, engineering and other equipment 841 817 Computer software 358 357 Furniture and fixtures 106 105 Construction-in-progress 21 10 2,125 2,086 Accumulated depreciation and amortization (1,379 ) (1,327 ) Property and equipment, net $ 746 $ 759
Other Non-Current Assets	Other non-current assets (in millions): October 25, 2019 April 26, 2019 Deferred tax assets $ 223 $ 201 Operating lease ROU assets 143 — Other assets 348 389 Other non-current assets $ 714 $ 590
Accrued Expenses	Accrued expenses (in millions): October 25, 2019 April 26, 2019 Accrued compensation and benefits $ 279 $ 433 Product warranty liabilities 26 25 Operating lease liabilities 49 — Other current liabilities 252 393 Accrued expenses $ 606 $ 851
Product Warranty Liabilities	The following tables summarize the activity related to product warranty liabilities and their balances as reported in our condensed consolidated balance sheets (in millions): Three Months Ended Six Months Ended October 25, 2019 October 26, 2018 October 25, 2019 October 26, 2018 Balance at beginning of period $ 39 $ 38 $ 40 $ 40 Expense accrued during the period 7 6 12 10 Warranty costs incurred (6 ) (5 ) (12 ) (11 ) Balance at end of period $ 40 $ 39 $ 40 $ 39 October 25, 2019 April 26, 2019 Accrued expenses $ 26 $ 25 Other long-term liabilities 14 15 Total warranty liabilities $ 40 $ 40
Other Long-term Liabilities	Other long-term liabilities (in millions): October 25, 2019 April 26, 2019 Liability for uncertain tax positions $ 251 $ 252 Income taxes payable 399 447 Product warranty liabilities 14 15 Operating lease liabilities 102 — Other liabilities 71 83 Other long-term liabilities $ 837 $ 797
Other Income, Net	Other income, net (in millions): Three Months Ended Six Months Ended October 25, 2019 October 26, 2018 October 25, 2019 October 26, 2018 Interest income $ 12 $ 21 $ 31 $ 46 Interest expense (12 ) (14 ) (27 ) (28 ) Other income, net 3 — 14 7 Total other income, net $ 3 $ 7 $ 18 $ 25
Statements of Cash Flows Additional Information	Supplemental cash flow information related to our operating leases is included in Note 9 ─ Leases. Non-cash investing activities and other supplemental cash flow information are presented below: Six Months Ended October 25, 2019 October 26, 2018 Non-cash Investing Activities: Capital expenditures incurred but not paid $ 6 $ 7 Supplemental Cash Flow Information: Income taxes paid, net of refunds $ 260 $ 104 Interest paid $ 25 $ 26

Revenue (Tables)

Revenue (Tables)	6 Months Ended
	Oct. 25, 2019
Revenue From Contract With Customer [Abstract]
Summary of Disaggregation of Revenue	The following table depicts the disaggregation of revenue by our products and services (in millions): Three Months Ended Six Months Ended October 25, 2019 October 26, 2018 October 25, 2019 October 26, 2018 Product revenues $ 771 $ 913 $ 1,415 $ 1,788 Strategic 442 485 779 960 Mature 329 428 636 828 Software maintenance revenues 254 236 504 465 Hardware maintenance and other services revenues 346 368 688 738 Hardware maintenance support contracts 286 303 570 606 Professional and other services 60 65 118 132 Net revenues $ 1,371 $ 1,517 $ 2,607 $ 2,991
Deferred Revenue and Financed Unearned Services Revenue	The following table summarizes the components of our deferred revenue and financed unearned services balance as reported in our condensed consolidated balance sheets (in millions): October 25, 2019 April 26, 2019 Deferred product revenue $ 85 $ 84 Deferred services revenue 3,314 3,502 Financed unearned services revenue 69 82 Total $ 3,468 $ 3,668 Reported as: Short-term $ 1,718 $ 1,825 Long-term 1,750 1,843 Total $ 3,468 $ 3,668 The following tables summarize the activity related to deferred revenue and financed unearned services revenue (in millions): Six Months Ended October 25, 2019 October 26, 2018 Balance at beginning of period $ 3,668 $ 3,363 Additions 1,011 1,067 Revenue recognized during the period (1,211 ) (1,224 ) Balance at end of period $ 3,468 $ 3,206
Summary of Activity Related to Deferred Commissions and their Balances in Condensed Consolidated Balance Sheets	The following tables summarize the activity related to deferred commissions and their balances as reported in our condensed consolidated balance sheets (in millions): Six Months Ended October 25, 2019 October 26, 2018 Balance at beginning of period $ 172 $ 137 Additions 32 35 Expense recognized during the period (50 ) (41 ) Balance at end of period $ 154 $ 131 October 25, 2019 April 26, 2019 Other current assets $ 66 $ 75 Other non-current assets 88 97 Total deferred commissions $ 154 $ 172

Financial Instruments and Fai_2

Financial Instruments and Fair Value Measurements (Tables)	6 Months Ended
	Oct. 25, 2019
Investments Debt And Equity Securities [Abstract]
Summary of Investments	The following is a summary of our investments (in millions): October 25, 2019 April 26, 2019 Cost or Estimated Cost or Estimated Amortized Gross Unrealized Fair Amortized Gross Unrealized Fair Cost Gains Losses Value Cost Gains Losses Value Corporate bonds $ 319 $ 1 $ — $ 320 $ 1,359 $ 2 $ (8 ) $ 1,353 U.S. Treasury and government debt securities 122 — — 122 214 — (1 ) 213 Certificates of deposit 150 — — 150 117 — — 117 Mutual funds 40 — — 40 35 — — 35 Total debt and equity securities $ 631 $ 1 $ — $ 632 $ 1,725 $ 2 $ (9 ) $ 1,718
Contractual Maturities of Debt Investments	The following table presents the contractual maturities of our debt investments as of October 25, 2019 (in millions): Amortized Cost Fair Value Due in one year or less $ 464 $ 464 Due after one year through five years 122 123 Due after five years through ten years 5 5 $ 591 $ 592
Summary of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis	The following table summarizes our financial assets and liabilities measured at fair value on a recurring basis (in millions): October 25, 2019 Fair Value Measurements at Reporting Date Using Total Level 1 Level 2 Cash $ 2,395 $ 2,395 $ — Corporate bonds 320 — 320 U.S. Treasury and government debt securities 122 91 31 Certificates of deposit 150 — 150 Total cash, cash equivalents and short-term investments $ 2,987 $ 2,486 $ 501 Other items: Mutual funds (1) $ 9 $ 9 $ — Mutual funds (2) $ 31 $ 31 $ — Foreign currency exchange contracts assets (1) $ 3 $ — $ 3 Foreign currency exchange contracts liabilities (3) $ (1 ) $ — $ (1 ) (1) Reported as other current assets in the condensed consolidated balance sheets (2) Reported as other non-current assets in the condensed consolidated balance sheets (3) Reported as accrued expenses in the condensed consolidated balance sheets

Financing Arrangements (Tables)

Financing Arrangements (Tables)	6 Months Ended
	Oct. 25, 2019
Debt Disclosure [Abstract]
Carrying Value of Long-Term Debt	The following table summarizes information relating to our long-term debt, which we collectively refer to as our Senior Notes (in millions, except interest rates): October 25, 2019 April 26, 2019 Effective Effective Amount Interest Rate Amount Interest Rate 2.00% Senior Notes Due September 2019 $ — N/A $ 400 2.32 % 3.375% Senior Notes Due June 2021 500 3.54 % 500 3.54 % 3.25% Senior Notes Due December 2022 250 3.43 % 250 3.43 % 3.30% Senior Notes Due September 2024 400 3.42 % 400 3.42 % Total principal amount 1,150 1,550 Unamortized discount and issuance costs (5 ) (6 ) Total senior notes 1,145 1,544 Less: Current portion of long-term debt — (400 ) Total long-term debt $ 1,145 $ 1,144
Future Principal Debt Maturities	As of October 25, 2019, our aggregate future principal debt maturities are as follows (in millions): Fiscal Year Amount 2022 $ 500 2023 250 2025 400 Total $ 1,150

Leases (Tables)

Leases (Tables)	6 Months Ended
	Oct. 25, 2019
Leases [Abstract]
Components of Lease Cost Related to Operating Leases	The components of lease cost related to our operating leases were as follows (in millions): Three Months Ended Six Months Ended October 25, 2019 October 25, 2019 Operating lease cost $ 15 $ 29 Variable lease cost 4 8 Total lease cost $ 19 $ 37
Supplemental Cash Flow Information Related to Operating Leases	The supplemental cash flow information related to our operating leases is as follows (in millions): Six Months Ended October 25, 2019 Cash paid for amounts included in the measurement of operating lease liabilities $ 29 Right-of-use assets obtained in exchange for new operating lease obligations $ 21
Supplemental Balance Sheet Information Related to Operating Leases	The supplemental balance sheet information related to our operating leases is as follows (in millions, except lease term and discount rate): October 25, 2019 Other non-current assets $ 143 Total operating lease ROU assets $ 143 Accrued expenses $ 49 Other long-term liabilities 102 Total operating lease liabilities $ 151 Weighted Average Remaining Lease Term 3.9 years Weighted Average Discount Rate 2.6 %
Future Minimum Operating Lease Payments	Future minimum operating lease payments as of October 25, 2019 are as follows (in millions): Operating Leases Fiscal 2020 (remainder) $ 28 Fiscal 2021 46 Fiscal 2022 34 Fiscal 2023 20 Fiscal 2024 14 Thereafter 18 Total lease payments $ 160 Less: Interest (9 ) Total $ 151
Schedule of Future Minimum Operating Lease Payments	Prior to our adoption of the new lease standard, future minimum operating lease payments as of April 26, 2019, which were undiscounted and excluded non-lease components, were as follows (in millions): Operating Leases Fiscal 2020 $ 47 Fiscal 2021 38 Fiscal 2022 26 Fiscal 2023 14 Fiscal 2024 10 Thereafter 16 Total lease payments $ 151

Stockholders' Equity (Tables)

Stockholders' Equity (Tables)	6 Months Ended
	Oct. 25, 2019
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Information Related to Stock Options	Information related to our stock options is summarized below (in millions): Six Months Ended October 25, 2019 October 26, 2018 Intrinsic value of exercises $ 3 $ 22 Proceeds received from exercises $ 2 $ 17 Fair value of options vested $ — $ 1
Activity Related to Restricted Stock Units Including Performance-Based Restricted Stock Units	The following table summarizes information related to our RSUs, including PBRSUs, (in millions, except fair value): Number of Shares Weighted- Average Grant Date Fair Value Outstanding as of April 26, 2019 8 $ 45.68 Granted 3 $ 52.21 Vested (3 ) $ 37.88 Forfeited (1 ) $ 47.64 Outstanding as of October 25, 2019 7 $ 51.25
Number and Value of Shares Netted for Employee Taxes	The number and value of the shares netted for employee taxes are summarized in the table below (in millions): Six Months Ended October 25, 2019 October 26, 2018 Shares withheld for taxes 1 1 Fair value of shares withheld $ 74 $ 89
Schedule of Employee Stock Purchase Plan (ESPP)	The following table summarizes activity related to the purchase rights issued under the ESPP (in millions): Six Months Ended October 25, 2019 October 26, 2018 Shares issued under the ESPP 1 2 Proceeds from issuance of shares $ 54 $ 49
Stock-Based Compensation Expense	Stock-based compensation expense is included in the condensed consolidated statements of operations as follows (in millions): Three Months Ended Six Months Ended October 25, 2019 October 26, 2018 October 25, 2019 October 26, 2018 Cost of product revenues $ 1 $ — $ 2 $ 1 Cost of hardware maintenance and other services revenues 3 2 5 5 Sales and marketing 17 16 35 33 Research and development 13 12 28 24 General and administrative 6 8 12 15 Total stock-based compensation expense $ 40 $ 38 $ 82 $ 78 Income tax benefit for stock-based compensation expense $ 4 $ 5 $ 8 $ 10
Summary of Activities Related to Stock Repurchase Program	The following table summarizes activity related to this program for the six months ended October 25, 2019 (in millions, except per share amounts): Number of shares repurchased 14 Average price per share $ 55.06 Aggregate purchase price $ 750 Remaining authorization at end of period $ 1,139
Summary of Activities Related to Dividends on Common Stock	The following is a summary of our activities related to dividends on our common stock (in millions, except per share amounts): Six Months Ended October 25, 2019 October 26, 2018 Dividends per share declared $ 0.96 $ 0.80 Dividend payments allocated to additional paid-in capital $ 226 $ 207 Dividend payments allocated to retained earnings $ — $ —
Accumulated Other Comprehensive Income (Loss) by Component Net of Tax	Changes in accumulated other comprehensive income (loss) (AOCI) by component, net of tax, are summarized below (in millions): Foreign Currency Translation Adjustments Defined Benefit Obligation Adjustments Unrealized Gains (Losses) on Available- for-Sale Securities Unrealized Gains (Losses) on Derivative Instruments Total Balance as of April 26, 2019 $ (34 ) $ (3 ) $ (7 ) $ 1 $ (43 ) Other comprehensive income (loss), net of tax (2 ) — 22 1 21 Amounts reclassified from AOCI, net of tax — — (14 ) — (14 ) Total other comprehensive income (2 ) — 8 1 7 Balance as of October 25, 2019 $ (36 ) $ (3 ) $ 1 $ 2 $ (36 )

Derivatives and Hedging Activ_2

Derivatives and Hedging Activities (Tables)	6 Months Ended
	Oct. 25, 2019
Derivative Instruments And Hedging Activities Disclosure [Abstract]
Schedule of Notional Value of Outstanding Foreign Currency Exchange Forward Contracts	The notional amount of our outstanding U.S. dollar equivalent foreign currency exchange forward contracts consisted of the following (in millions): October 25, 2019 April 26, 2019 Cash Flow Hedges Forward contracts purchased $ 305 $ 103 Balance Sheet Contracts Forward contracts sold $ 114 $ 121 Forward contracts purchased $ 145 $ 363
Schedule of Derivative Instruments Not Designated as Hedging Instruments	The effect of derivative instruments not designated as hedging instruments recognized in other income, net on our condensed consolidated statements of operations was as follows (in millions): Three Months Ended Six Months Ended October 25, 2019 October 26, 2018 October 25, 2019 October 26, 2018 Gain (Loss) Recognized in Income Gain (Loss) Recognized in Income Foreign currency exchange contracts $ — $ 2 $ (3 ) $ 12

Restructuring Charges (Tables)

Restructuring Charges (Tables)	6 Months Ended
	Oct. 25, 2019
Restructuring And Related Activities [Abstract]
Activities Related to Restructuring Reserves	Activities related to our restructuring plans are summarized as follows (in millions): Six Months Ended Six Months Ended October 25, 2019 October 26, 2018 May 2019 Plan April 2019 Plan November Plan Total May 2018 Plan November 2016 Plan Total Balance at beginning of period $ — $ 15 $ 4 $ 19 $ — $ 6 $ 6 Net charges 21 — — 21 19 — 19 Cash payments (19 ) (12 ) — (31 ) (17 ) (1 ) (18 ) Other — — (4 ) (4 ) — — — Balance at end of period $ 2 $ 3 $ — $ 5 $ 2 $ 5 $ 7

Income Taxes (Tables)

Income Taxes (Tables)	6 Months Ended
	Oct. 25, 2019
Income Tax Disclosure [Abstract]
Effective Tax Rates	Our effective tax rates for the periods presented were as follows: Six Months Ended October 25, 2019 October 26, 2018 Effective tax rates 17.2 % 7.3 %

Net Income per Share (Tables)

Net Income per Share (Tables)	6 Months Ended
	Oct. 25, 2019
Earnings Per Share [Abstract]
Computation of Basic and Diluted Net Income Per Share	The following is a calculation of basic and diluted net income per share (in millions, except per share amounts): Three Months Ended Six Months Ended October 25, 2019 October 26, 2018 October 25, 2019 October 26, 2018 Numerator: Net income $ 243 $ 241 $ 346 $ 524 Denominator: Shares used in basic computation 235 258 237 260 Dilutive impact of employee equity award plans 1 6 3 7 Shares used in diluted computation 236 264 240 267 Net Income per Share: Basic $ 1.03 $ 0.93 $ 1.46 $ 2.02 Diluted $ 1.03 $ 0.91 $ 1.44 $ 1.96

Segment, Geographic, and Sign_2

Segment, Geographic, and Significant Customer Information (Tables)	6 Months Ended
	Oct. 25, 2019
Segment Reporting [Abstract]
Schedule of Revenues by Geographic Region	Summarized revenues by geographic region based on information from our internal management system and utilized by our Chief Executive Officer, who is considered our Chief Operating Decision Maker, is as follows (in millions): Three Months Ended Six Months Ended October 25, 2019 October 26, 2018 October 25, 2019 October 26, 2018 United States, Canada and Latin America (Americas) $ 771 $ 868 $ 1,406 $ 1,711 Europe, Middle East and Africa (EMEA) 402 429 804 859 Asia Pacific (APAC) 198 220 397 421 Net revenues $ 1,371 $ 1,517 $ 2,607 $ 2,991
Schedule of Cash, Cash Equivalents and Short-Term Investments	The following table presents cash, cash equivalents and short-term investments held in the U.S. and internationally in various foreign subsidiaries (in millions): October 25, 2019 April 26, 2019 U.S. $ 125 $ 159 International 2,862 3,740 Total $ 2,987 $ 3,899
Schedule of Property and Equipment, Net by Geographic Areas	The following table presents property and equipment information for geographic areas based on the physical location of the assets (in millions): October 25, 2019 April 26, 2019 U.S. $ 559 $ 572 International 187 187 Total $ 746 $ 759
Schedule of Revenues from Significant Customers	The following customers, each of which is a distributor, accounted for 10% or more of our net revenues: Three Months Ended Six Months Ended October 25, 2019 October 26, 2018 October 25, 2019 October 26, 2018 Arrow Electronics, Inc. 24 % 24 % 24 % 23 % Tech Data Corporation 21 % 21 % 21 % 19 %
Schedule of Net Accounts Receivable from Significant Customers	The following customers accounted for 10% or more of accounts receivable: October 25, 2019 April 26, 2019 Arrow Electronics, Inc. 11 % 11 % Tech Data Corporation 20 % 24 %

Description of Business and S_3

Description of Business and Significant Accounting Policies - Additional Information (Detail) - USD ($) $ in Millions	Oct. 25, 2019	Apr. 27, 2019	Apr. 26, 2019
Description Of Business And Significant Accounting Policies [Line Items]
Operating lease ROU assets, net of deferred rent and lease restructuring liabilities	$ 143		$ 0
Operating lease liabilities	$ 151
ASU 2016-02
Description Of Business And Significant Accounting Policies [Line Items]
Operating lease ROU assets, net of deferred rent and lease restructuring liabilities		$ 149
Operating lease liabilities		158
Cumulative-effect adjustment to retained earnings		$ 6	$ 6

Business Combination - Addition

Business Combination - Additional Information (Detail) $ in Millions	May 23, 2019USD ($)
Cognigo Research Limited
Business Acquisition [Line Items]
Business acquisition cash paid	$ 58

Business Combination - Summary

Business Combination - Summary of Preliminary Acquisition Date Fair Values of Assets Acquired and Liabilities Assumed (Detail) - USD ($) $ in Millions	Oct. 25, 2019	May 23, 2019	Apr. 26, 2019
Business Acquisition [Line Items]
Goodwill	$ 1,770		$ 1,735
Cognigo Research Limited
Business Acquisition [Line Items]
Cash		$ 2
Developed technology intangible asset		26
Goodwill		35
Total assets acquired		63
Liabilities assumed		(5)
Total purchase price		$ 58

Goodwill and Purchased Intang_3

Goodwill and Purchased Intangible Assets, Net - Schedule of Goodwill Activity (Detail) $ in Millions	6 Months Ended
	Oct. 25, 2019USD ($)
Goodwill And Intangible Assets Disclosure [Abstract]
Balance as of April 26, 2019	$ 1,735
Additions	35
Balance as of October 25, 2019	$ 1,770

Goodwill and Purchased Intang_4

Goodwill and Purchased Intangible Assets, Net - Purchased Intangible Assets, Net (Detail) - USD ($) $ in Millions	Oct. 25, 2019	Apr. 26, 2019
Acquired Finite Lived Intangible Assets [Line Items]
Gross Assets	$ 186	$ 201
Accumulated Amortization	(135)	(154)
Net Assets	51	47
Developed Technology
Acquired Finite Lived Intangible Assets [Line Items]
Gross Assets	186	160
Accumulated Amortization	(135)	(113)
Net Assets	51	47
Customer Contracts/Relationships
Acquired Finite Lived Intangible Assets [Line Items]
Gross Assets	0	41
Accumulated Amortization	0	(41)
Net Assets	$ 0	$ 0

Goodwill and Purchased Intang_5

Goodwill and Purchased Intangible Assets, Net - Amortization Expense for Purchased Intangible Assets (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Oct. 25, 2019	Oct. 26, 2018	Oct. 25, 2019	Oct. 26, 2018
Acquired Finite Lived Intangible Assets [Line Items]
Amortization expense	$ 11	$ 12	$ 22	$ 25
Cost of revenues | Developed Technology
Acquired Finite Lived Intangible Assets [Line Items]
Amortization expense	11	9	22	18
Operating expenses | Customer Contracts/Relationships
Acquired Finite Lived Intangible Assets [Line Items]
Amortization expense	$ 0	$ 3	$ 0	$ 7

Goodwill and Purchased Intang_6

Goodwill and Purchased Intangible Assets, Net - Future Amortization Expense Related to Purchased Intangible Assets (Detail) - USD ($) $ in Millions	Oct. 25, 2019	Apr. 26, 2019
Acquired Finite Lived Intangible Assets [Line Items]
Net Assets	$ 51	$ 47
Intangible Assets Subject to Amortization
Acquired Finite Lived Intangible Assets [Line Items]
Remainder of 2020	16
2021	25
2022	9
2023	1
Net Assets	$ 51

Supplemental Financial Inform_3

Supplemental Financial Information - Cash, Cash Equivalents and Restricted Cash (Detail) - USD ($) $ in Millions	Oct. 25, 2019	Apr. 26, 2019	Oct. 26, 2018	Apr. 27, 2018
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents [Abstract]
Cash and cash equivalents	$ 2,545	$ 2,325
Restricted cash	6	6
Cash, cash equivalents and restricted cash	$ 2,551	$ 2,331	$ 2,365	$ 2,947

Supplemental Financial Inform_4

Supplemental Financial Information - Inventories (Detail) - USD ($) $ in Millions	Oct. 25, 2019	Apr. 26, 2019
Inventory Disclosure [Abstract]
Purchased components	$ 14	$ 8
Finished goods	97	123
Inventories	$ 111	$ 131

Supplemental Financial Inform_5

Supplemental Financial Information - Property and Equipment Net (Detail) - USD ($) $ in Millions	Oct. 25, 2019	Apr. 26, 2019
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 2,125	$ 2,086
Accumulated depreciation and amortization	(1,379)	(1,327)
Property and equipment, net	746	759
Land
Property Plant And Equipment [Line Items]
Property and equipment, gross	104	106
Buildings and improvements
Property Plant And Equipment [Line Items]
Property and equipment, gross	609	605
Leasehold Improvements
Property Plant And Equipment [Line Items]
Property and equipment, gross	86	86
Computer, production, engineering and other equipment
Property Plant And Equipment [Line Items]
Property and equipment, gross	841	817
Computer software
Property Plant And Equipment [Line Items]
Property and equipment, gross	358	357
Furniture and fixtures
Property Plant And Equipment [Line Items]
Property and equipment, gross	106	105
Construction-in-progress
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 21	$ 10

Supplemental Financial Inform_6

Supplemental Financial Information - Additional Information (Detail) - USD ($) $ in Millions	Aug. 29, 2019	Oct. 25, 2019	Oct. 26, 2018	Apr. 26, 2019
Property Plant And Equipment [Line Items]
Net book value		$ 746		$ 759
Cash proceeds from properties sold		$ 96	$ 0
Lenovo NetApp Technology Limited (“LNTL”)
Property Plant And Equipment [Line Items]
Non-controlling equity interest, ownership percentage		49.00%
Other non current assets		$ 77		$ 78
Properties Sold
Property Plant And Equipment [Line Items]
Cash proceeds from properties sold	$ 96
Gain on sale of properties, net of direct selling costs	38
Other Current Assets
Property Plant And Equipment [Line Items]
Net book value	$ 53

Supplemental Financial Inform_7

Supplemental Financial Information - Other Non-Current Assets (Detail) - USD ($) $ in Millions	Oct. 25, 2019	Apr. 26, 2019
Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Abstract]
Deferred tax assets	$ 223	$ 201
Operating lease ROU assets	143	0
Other assets	348	389
Other non-current assets	$ 714	$ 590

Supplemental Financial Inform_8

Supplemental Financial Information - Accrued expenses (Detail) - USD ($) $ in Millions	Oct. 25, 2019	Apr. 26, 2019
Payables And Accruals [Abstract]
Accrued compensation and benefits	$ 279	$ 433
Product warranty liabilities	26	25
Operating lease liabilities	49	0
Other current liabilities	252	393
Accrued expenses	$ 606	$ 851

Supplemental Financial Inform_9

Supplemental Financial Information - Product Warranty Liabilities (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Oct. 25, 2019	Oct. 26, 2018	Oct. 25, 2019	Oct. 26, 2018	Oct. 25, 2019	Apr. 26, 2019
Movement In Standard Product Warranty Accrual [Roll Forward]
Balance at beginning of period	$ 39	$ 38	$ 40	$ 40
Expense accrued during the period	7	6	12	10
Warranty costs incurred	(6)	(5)	(12)	(11)
Balance at end of period	40	39	40	39
Standard Product Warranty Accrual, Balance Sheet Classification [Abstract]
Accrued expenses					$ 26	$ 25
Other long-term liabilities					14	15
Total warranty liabilities	$ 39	$ 38	$ 40	$ 40	$ 40	$ 40

Supplemental Financial Infor_10

Supplemental Financial Information - Other Long-term Liabilities (Detail) - USD ($) $ in Millions	Oct. 25, 2019	Apr. 26, 2019
Liabilities Other Than Long Term Debt Noncurrent [Abstract]
Liability for uncertain tax positions	$ 251	$ 252
Income taxes payable	399	447
Product warranty liabilities	14	15
Operating lease liabilities	102	0
Other liabilities	71	83
Other long-term liabilities	$ 837	$ 797

Supplemental Financial Infor_11

Supplemental Financial Information - Other Income Net (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Oct. 25, 2019	Oct. 26, 2018	Oct. 25, 2019	Oct. 26, 2018
Nonoperating Income Expense [Abstract]
Interest income	$ 12	$ 21	$ 31	$ 46
Interest expense	(12)	(14)	(27)	(28)
Other income, net	3	0	14	7
Total other income, net	$ 3	$ 7	$ 18	$ 25

Supplemental Financial Infor_12

Supplemental Financial Information - Supplemental Cash Flows, Non-Cash Investing Activities (Detail) - USD ($) $ in Millions	6 Months Ended
	Oct. 25, 2019	Oct. 26, 2018
Non-cash Investing Activities:
Capital expenditures incurred but not paid	$ 6	$ 7
Supplemental Cash Flow Information:
Income taxes paid, net of refunds	260	104
Interest paid	$ 25	$ 26

Revenue - Summary of Disaggrega

Revenue - Summary of Disaggregation of Revenue (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Oct. 25, 2019	Oct. 26, 2018	Oct. 25, 2019	Oct. 26, 2018
Disaggregation Of Revenue [Line Items]
Net revenues	$ 1,371	$ 1,517	$ 2,607	$ 2,991
Product Revenues
Disaggregation Of Revenue [Line Items]
Net revenues	771	913	1,415	1,788
Strategic
Disaggregation Of Revenue [Line Items]
Net revenues	442	485	779	960
Mature
Disaggregation Of Revenue [Line Items]
Net revenues	329	428	636	828
Software Maintenance Revenues
Disaggregation Of Revenue [Line Items]
Net revenues	254	236	504	465
Hardware Maintenance and Other Services Revenues
Disaggregation Of Revenue [Line Items]
Net revenues	346	368	688	738
Hardware Maintenance Support Contracts
Disaggregation Of Revenue [Line Items]
Net revenues	286	303	570	606
Professional and Other Services
Disaggregation Of Revenue [Line Items]
Net revenues	$ 60	$ 65	$ 118	$ 132

Revenue - Summary of Components

Revenue - Summary of Components of Deferred Revenue and Financed Unearned Services Revenue (Detail) - USD ($) $ in Millions	Oct. 25, 2019	Apr. 26, 2019	Oct. 26, 2018	Apr. 27, 2018
Contract With Customer Liability [Line Items]
Deferred revenue and financed unearned services revenue	$ 3,468	$ 3,668	$ 3,206	$ 3,363
Short-term	1,718	1,825
Long-term	1,750	1,843
Deferred product revenue
Contract With Customer Liability [Line Items]
Deferred revenue and financed unearned services revenue	85	84
Deferred services revenue
Contract With Customer Liability [Line Items]
Deferred revenue and financed unearned services revenue	3,314	3,502
Financed unearned services revenue
Contract With Customer Liability [Line Items]
Deferred revenue and financed unearned services revenue	$ 69	$ 82

Revenue - Summary of Activity R

Revenue - Summary of Activity Related to Deferred Revenue and Financed Unearned Services Revenue (Detail) - USD ($) $ in Millions	6 Months Ended
	Oct. 25, 2019	Oct. 26, 2018
Contract With Customer Liability [Abstract]
Balance at beginning of period	$ 3,668	$ 3,363
Additions	1,011	1,067
Revenue recognized during the period	(1,211)	(1,224)
Balance at end of period	$ 3,468	$ 3,206

Revenue - Additional Informatio

Revenue - Additional Information (Detail) - USD ($) $ in Millions	6 Months Ended
	Oct. 25, 2019	Oct. 26, 2018
Disaggregation Of Revenue [Abstract]
Revenue recognized	$ 1,045	$ 1,019
Transaction price allocated to remaining performance obligations	$ 3,468

Revenue - Additional Informat_2

Revenue - Additional Information (Detail1)	Oct. 25, 2019
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2019-10-26
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Revenue expected to be recognized	49.00%
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	12 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2020-10-31
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Revenue expected to be recognized	26.00%
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	12 months

Revenue - Summary of Activity_2

Revenue - Summary of Activity Related to Deferred Commissions (Detail) - USD ($) $ in Millions	6 Months Ended
	Oct. 25, 2019	Oct. 26, 2018
Deferred Revenue Disclosure [Abstract]
Balance at beginning of period	$ 172	$ 137
Additions	32	35
Expense recognized during the period	(50)	(41)
Balance at end of period	$ 154	$ 131

Revenue - Summary of Activity_3

Revenue - Summary of Activity Related to the Balances in Condensed Consolidated Balance Sheets (Detail) - USD ($) $ in Millions	Oct. 25, 2019	Apr. 26, 2019	Oct. 26, 2018	Apr. 27, 2018
Deferred Revenue Disclosure [Abstract]
Other current assets	$ 66	$ 75
Other non-current assets	88	97
Total deferred commissions	$ 154	$ 172	$ 131	$ 137

Financial Instruments and Fai_3

Financial Instruments and Fair Value Measurements - Summary of Investments (Detail) - USD ($) $ in Millions	Oct. 25, 2019	Apr. 26, 2019
Schedule of Available-for-sale Securities [Line Items]
Cost or amortized cost	$ 631	$ 1,725
Gross unrealized gains	1	2
Gross unrealized losses	0	(9)
Estimated fair value	632	1,718
Corporate Bonds
Schedule of Available-for-sale Securities [Line Items]
Cost or amortized cost	319	1,359
Gross unrealized gains	1	2
Gross unrealized losses	0	(8)
Estimated fair value	320	1,353
U.S. Treasury and Government Debt Securities
Schedule of Available-for-sale Securities [Line Items]
Cost or amortized cost	122	214
Gross unrealized gains	0	0
Gross unrealized losses	0	(1)
Estimated fair value	122	213
Certificates of Deposit
Schedule of Available-for-sale Securities [Line Items]
Cost or amortized cost	150	117
Gross unrealized gains	0	0
Gross unrealized losses	0	0
Estimated fair value	150	117
Mutual Funds
Schedule of Available-for-sale Securities [Line Items]
Cost or amortized cost	40	35
Gross unrealized gains	0	0
Gross unrealized losses	0	0
Estimated fair value	$ 40	$ 35

Financial Instruments and Fai_4

Financial Instruments and Fair Value Measurements - Additional Information (Detail) - USD ($) $ in Millions	6 Months Ended
	Oct. 25, 2019	Apr. 26, 2019
Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Instrument, Fair Value Disclosure	$ 1,174	$ 1,553
Corporate Bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Proceeds from sale of available-for-sale investments	1,000
Corporate Bonds | Other Income, Net
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Realized gain on sale of available-for-sale investments	$ 14

Financial Instruments and Fai_5

Financial Instruments and Fair Value Measurements - Contractual Maturities of Debt Investments (Detail) $ in Millions	Oct. 25, 2019USD ($)
Investments Debt And Equity Securities [Abstract]
Due in one year or less, Amortized Cost	$ 464
Due after one year through five years, Amortized Cost	122
Due after five years through ten years, Amortized Cost	5
Total, Amortized Cost	591
Due in one year or less, Estimated Fair Value	464
Due after one year through five years, Estimated Fair Value	123
Due after five years through ten years, Estimated Fair Value	5
Total, Estimated Fair Value	$ 592

Financial Instruments and Fai_6

Financial Instruments and Fair Value Measurements - Summary of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) $ in Millions	Oct. 25, 2019USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	$ 2,987
Other Current Assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign currency exchange contracts assets	3	[1]
Accrued Expenses
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign currency exchange contracts liabilities	(1)	[2]
Corporate Bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	320
U.S. Treasury and Government Debt Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	122
Certificates of Deposit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	150
Mutual Funds | Other Current Assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	9	[1]
Mutual Funds | Other Noncurrent Assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	31	[3]
Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	2,486
Quoted Prices in Active Markets for Identical Assets (Level 1) | Other Current Assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign currency exchange contracts assets	0	[1]
Quoted Prices in Active Markets for Identical Assets (Level 1) | Accrued Expenses
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign currency exchange contracts liabilities	0	[2]
Quoted Prices in Active Markets for Identical Assets (Level 1) | Corporate Bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | U.S. Treasury and Government Debt Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	91
Quoted Prices in Active Markets for Identical Assets (Level 1) | Certificates of Deposit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Mutual Funds | Other Current Assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	9	[1]
Quoted Prices in Active Markets for Identical Assets (Level 1) | Mutual Funds | Other Noncurrent Assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	31	[3]
Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	501
Significant Other Observable Inputs (Level 2) | Other Current Assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign currency exchange contracts assets	3	[1]
Significant Other Observable Inputs (Level 2) | Accrued Expenses
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign currency exchange contracts liabilities	(1)	[2]
Significant Other Observable Inputs (Level 2) | Corporate Bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	320
Significant Other Observable Inputs (Level 2) | U.S. Treasury and Government Debt Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	31
Significant Other Observable Inputs (Level 2) | Certificates of Deposit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	150
Significant Other Observable Inputs (Level 2) | Mutual Funds | Other Current Assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	0	[1]
Significant Other Observable Inputs (Level 2) | Mutual Funds | Other Noncurrent Assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	0	[3]
Cash
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	2,395
Cash | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	2,395
Cash | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	$ 0
[1]	Reported as other current assets in the condensed consolidated balance sheets
[2]	Reported as accrued expenses in the condensed consolidated balance sheets
[3]	Reported as other non-current assets in the condensed consolidated balance sheets

Financing Arrangements - Carryi

Financing Arrangements - Carrying Value of Long-Term Debt (Detail) - USD ($) $ in Millions	Oct. 25, 2019	Apr. 26, 2019
Debt Instrument [Line Items]
Total senior notes	$ 1,145	$ 1,544
Less: Current portion of long-term debt	0	(400)
Total long-term debt	1,145	1,144
Senior Notes
Debt Instrument [Line Items]
Total principal amount	1,150	1,550
Unamortized discount and issuance costs	(5)	(6)
Senior Notes | Due September 2019
Debt Instrument [Line Items]
Total principal amount	0	$ 400
Debt Instrument, Effective Interest Rate		2.32%
Senior Notes | Due June 2021
Debt Instrument [Line Items]
Total principal amount	$ 500	$ 500
Debt Instrument, Effective Interest Rate	3.54%	3.54%
Senior Notes | Due December 2022
Debt Instrument [Line Items]
Total principal amount	$ 250	$ 250
Debt Instrument, Effective Interest Rate	3.43%	3.43%
Senior Notes | Due September 2024
Debt Instrument [Line Items]
Total principal amount	$ 400	$ 400
Debt Instrument, Effective Interest Rate	3.42%	3.42%

Financing Arrangements - Additi

Financing Arrangements - Additional Information (Detail)	Sep. 27, 2019USD ($)	Jul. 28, 2017USD ($)Extension	Oct. 25, 2019USD ($)	Apr. 26, 2019USD ($)
Revolving Credit Facility
Debt Instrument [Line Items]
Credit facility, amount		$ 1,000,000,000
Credit facility, date expiry		Dec. 10, 2021
Credit facility, increase in facility		$ 300,000,000
Credit facility, number of extensions | Extension		2
Credit facility, extensions period		1 year
Credit facility, amounts drawn			$ 0
Revolving Credit Facility | Letter Of Credit Sub Facility
Debt Instrument [Line Items]
Credit facility, amount		$ 50,000,000
Commercial Paper
Debt Instrument [Line Items]
Notes issued, principal amount			$ 499,000,000	$ 249,000,000
Weighted-average interest rate			2.20%	2.73%
Commercial Paper | Maximum
Debt Instrument [Line Items]
Notes issued, principal amount		$ 1,000,000,000
Debt instrument maturity period		397 days	91 days	38 days
Commercial Paper | Minimum
Debt Instrument [Line Items]
Debt instrument maturity period			7 days	27 days
Senior Notes
Debt Instrument [Line Items]
Notes issued, principal amount			$ 1,150,000,000	$ 1,550,000,000
Senior Notes | Due June 2021
Debt Instrument [Line Items]
Notes issued, principal amount			$ 500,000,000	500,000,000
Notes issued, interest rate			3.375%
Senior Notes | Due September 2024
Debt Instrument [Line Items]
Notes issued, principal amount			$ 400,000,000	400,000,000
Notes issued, interest rate			3.30%
Senior Notes | Due December 2022
Debt Instrument [Line Items]
Notes issued, principal amount			$ 250,000,000	250,000,000
Notes issued, interest rate			3.25%
Senior Notes | Due September 2019
Debt Instrument [Line Items]
Notes issued, principal amount			$ 0	$ 400,000,000
Notes issued, interest rate	2.00%
Extinguishment of debt amount	$ 400,000,000

Financing Arrangements - Future

Financing Arrangements - Future Principal Debt Maturities (Detail) - Senior Notes - USD ($) $ in Millions	Oct. 25, 2019	Apr. 26, 2019
Debt Instrument [Line Items]
2022	$ 500
2023	250
2025	400
Total	$ 1,150	$ 1,550

Leases - Additional Information

Leases - Additional Information (Detail) - Maximum	Oct. 25, 2019
Real Estate
Leases [Line Items]
Operating remaining lease term	15 years
Equipment
Leases [Line Items]
Operating remaining lease term	4 years
Automobiles
Leases [Line Items]
Operating remaining lease term	5 years

Leases - Components of Lease Co

Leases - Components of Lease Cost Related to Operating Leases (Detail) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Oct. 25, 2019	Oct. 25, 2019
Leases [Abstract]
Operating lease cost	$ 15	$ 29
Variable lease cost	4	8
Total lease cost	$ 19	$ 37

Leases - Supplemental Cash Flow

Leases - Supplemental Cash Flow Information Related to Operating Leases (Detail) $ in Millions	6 Months Ended
	Oct. 25, 2019USD ($)
Leases [Abstract]
Cash paid for amounts included in the measurement of operating lease liabilities	$ 29
Right-of-use assets obtained in exchange for new operating lease obligations	$ 21

Leases - Supplemental Balance S

Leases - Supplemental Balance Sheet Information Related to Operating Leases (Detail) - USD ($) $ in Millions	Oct. 25, 2019	Apr. 26, 2019
Leases [Abstract]
Other non-current assets	$ 143	$ 0
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	us-gaap:OtherAssetsNoncurrent
Accrued expenses	$ 49	0
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	us-gaap:AccruedLiabilitiesCurrent
Other long-term liabilities	$ 102	$ 0
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	us-gaap:OtherLiabilitiesNoncurrent
Total operating lease liabilities	$ 151
Weighted Average Remaining Lease Term	3 years 10 months 24 days
Weighted Average Discount Rate	2.60%

Leases - Future Minimum Operati

Leases - Future Minimum Operating Lease Payments (Detail) $ in Millions	Oct. 25, 2019USD ($)
Leases [Abstract]
Fiscal 2020 (remainder)	$ 28
Fiscal 2021	46
Fiscal 2022	34
Fiscal 2023	20
Fiscal 2024	14
Thereafter	18
Total lease payments	160
Less: Interest	(9)
Total	$ 151

Leases - Schedule of Future Min

Leases - Schedule of Future Minimum Operating Lease Payments (Detail) $ in Millions	Apr. 26, 2019USD ($)
Leases [Abstract]
Fiscal 2020	$ 47
Fiscal 2021	38
Fiscal 2022	26
Fiscal 2023	14
Fiscal 2024	10
Thereafter	16
Total lease payments	$ 151

Stockholders' Equity - Addition

Stockholders' Equity - Additional Information (Detail) - USD ($)	Nov. 13, 2019	Oct. 25, 2019	Oct. 26, 2018	Oct. 25, 2019	Oct. 26, 2018	Oct. 25, 2019	Apr. 26, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation expense related to equity awards		$ 339,000,000		$ 339,000,000		$ 339,000,000
Unrecognized compensation expense will be amortized on a straight-line basis over a weighted-average remaining period, in years				2 years 3 months 18 days
Stock repurchase program, authorized amount		13,600,000,000		$ 13,600,000,000		$ 13,600,000,000
Allocation of purchase price of share repurchases		$ 500,000,000	$ 561,000,000	$ 750,000,000	$ 1,061,000,000
Repurchase of common stock, shares				14,000,000		327,000,000
Average price of common stock repurchased under repurchase program				$ 55.06		$ 38.20
Aggregate purchase price of common stock authorized under repurchase program				$ 750,000,000	$ 1,061,000,000	$ 12,500,000,000
Cash dividends declared, per common share		$ 0.48	$ 0.40	$ 0.96	$ 0.80
Other income, net
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Realized gains from sale of available-for-sale securities				$ 14,000,000
Subsequent Event
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Cash dividends declared, per common share	$ 0.48
Cash dividend payable date	Jan. 22, 2020
Cash dividend record date	Jan. 3, 2020
Additional Paid-in Capital
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocation of purchase price of share repurchases				398,000,000
Retained Earnings (Accumulated Deficit)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocation of purchase price of share repurchases		$ 243,000,000	$ 241,000,000	$ 352,000,000	$ 464,000,000
Performance Based Restricted Stock Unit
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period				3 years
RSUs grant date fair value		$ 18,000,000		$ 18,000,000		$ 18,000,000
Vesting period, description				For the remaining PBRSUs granted, the number of shares issued will depend upon our achievement against a cumulative Adjusted Operating Income (AOI) target, as defined in the grant agreements, for the three year period from fiscal 2020 through 2022.
Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of Common stock issued to settle PBRSUs of target shares granted				0.00%
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of options outstanding		1,000,000		1,000,000		1,000,000	1,000,000
Percentage of Common stock issued to settle PBRSUs of target shares granted				200.00%
1999 Stock Option Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation arrangement by share based payment award extended expiration period		10 years

Stockholders' Equity - Informat

Stockholders' Equity - Information Related to Stock Options (Detail) - USD ($) $ in Millions	6 Months Ended
	Oct. 25, 2019	Oct. 26, 2018
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Intrinsic value of exercises	$ 3	$ 22
Proceeds received from exercises	$ 2	17
Fair value of options vested		$ 1

Stockholders' Equity - Activity

Stockholders' Equity - Activity Related to Restricted Stock Units Including Performance-Based Restricted Stock Units (Detail) - Restricted Stock Units shares in Millions	6 Months Ended
	Oct. 25, 2019$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Beginning balance, Number of Shares | shares	8
RSUs granted, Number of Shares | shares	3
RSUs vested, Number of Shares | shares	(3)
RSUs forfeited, Number of Shares | shares	(1)
Ending Balance, Number of Shares | shares	7
Beginning Balance, Weighted-Average Grant Date Fair Value | $ / shares	$ 45.68
RSUs granted, Weighted-Average Grant Date Fair Value | $ / shares	52.21
RSUs vested, Weighted-Average Grant Date Fair Value | $ / shares	37.88
RSUs forfeited, Weighted-Average Grant Date Fair Value | $ / shares	47.64
Ending Balance, Weighted-Average Grant Date Fair Value | $ / shares	$ 51.25

Stockholders' Equity - Number a

Stockholders' Equity - Number and Value of Shares Netted for Employee Taxes (Detail) - Restricted Stock Units - USD ($) shares in Millions, $ in Millions	6 Months Ended
	Oct. 25, 2019	Oct. 26, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares withheld for taxes	1	1
Fair value of shares withheld	$ 74	$ 89

Stockholders' Equity - Schedule

Stockholders' Equity - Schedule of Employee Stock Purchase Plan (ESPP) (Detail) - USD ($) shares in Millions, $ in Millions	6 Months Ended
	Oct. 25, 2019	Oct. 26, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares issued under the ESPP	1	2
Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Proceeds from issuance of shares	$ 54	$ 49

Stockholders' Equity - Stock-Ba

Stockholders' Equity - Stock-Based Compensation Expense (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Oct. 25, 2019	Oct. 26, 2018	Oct. 25, 2019	Oct. 26, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	$ 40	$ 38	$ 82	$ 78
Income tax benefit for stock-based compensation expense	4	5	8	10
Cost of Product Revenues
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	1	0	2	1
Cost of Hardware Maintenance and Other Services Revenues
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	3	2	5	5
Sales and Marketing
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	17	16	35	33
Research and Development
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	13	12	28	24
General and Administrative
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	$ 6	$ 8	$ 12	$ 15

Stockholders' Equity - Summary

Stockholders' Equity - Summary of Activities Related to Stock Repurchase Program (Detail) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		6 Months Ended		198 Months Ended
	Oct. 25, 2019	Oct. 26, 2018	Oct. 25, 2019	Oct. 26, 2018	Oct. 25, 2019
Equity [Abstract]
Number of shares repurchased			14		327
Average price per share			$ 55.06		$ 38.20
Aggregate purchase price	$ 500	$ 561	$ 750	$ 1,061
Remaining authorization at end of period	$ 1,139		$ 1,139		$ 1,139

Stockholders' Equity - Summar_2

Stockholders' Equity - Summary of Activities Related to Dividends on Common Stock (Detail) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended
	Oct. 25, 2019	Oct. 26, 2018	Oct. 25, 2019	Oct. 26, 2018
Dividends, Common Stock [Abstract]
Dividends per share declared	$ 0.48	$ 0.40	$ 0.96	$ 0.80
Dividend payments			$ 226	$ 207
Additional Paid-in Capital
Dividends, Common Stock [Abstract]
Dividend payments			226	207
Retained Earnings
Dividends, Common Stock [Abstract]
Dividend payments			$ 0	$ 0

Stockholders' Equity - Accumula

Stockholders' Equity - Accumulated Other Comprehensive Income (Loss) by Component Net of Tax (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Oct. 25, 2019	Oct. 26, 2018	Oct. 25, 2019	Oct. 26, 2018
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balances	$ 863	$ 1,922	$ 1,090	$ 2,276
Other comprehensive income (loss), net of tax			21
Amounts reclassified from AOCI, net of tax			(14)
Other comprehensive income (loss)	3	(5)	7	(5)
Balances	536	1,530	536	1,530
Foreign Currency Translation Adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balances			(34)
Other comprehensive income (loss), net of tax			(2)
Amounts reclassified from AOCI, net of tax			0
Other comprehensive income (loss)			(2)
Balances	(36)		(36)
Defined Benefit Obligation Adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balances			(3)
Other comprehensive income (loss), net of tax			0
Amounts reclassified from AOCI, net of tax			0
Other comprehensive income (loss)			0
Balances	(3)		(3)
Unrealized Gains (Losses) on Available-for-Sale Securities
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balances			(7)
Other comprehensive income (loss), net of tax			22
Amounts reclassified from AOCI, net of tax			(14)
Other comprehensive income (loss)			8
Balances	1		1
Unrealized Gains (Losses) on Derivative Instruments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balances			1
Other comprehensive income (loss), net of tax			1
Amounts reclassified from AOCI, net of tax			0
Other comprehensive income (loss)			1
Balances	2		2
AOCI Attributable to Parent
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balances	(39)	(70)	(43)	(70)
Other comprehensive income (loss)	3	(5)	7	(5)
Balances	$ (36)	$ (75)	$ (36)	$ (75)

Derivatives and Hedging Activ_3

Derivatives and Hedging Activities - Schedule of Notional Value of Outstanding Foreign Currency Forward Contracts (Detail) - Foreign Exchange Forward Contracts - USD ($) $ in Millions	Oct. 25, 2019	Apr. 26, 2019
Long | Cash Flow Hedges
Derivative [Line Items]
Forward contracts, Notional Amount	$ 305	$ 103
Non Designated | Long | Balance Sheet Contracts
Derivative [Line Items]
Forward contracts, Notional Amount	145	363
Non Designated | Short | Balance Sheet Contracts
Derivative [Line Items]
Forward contracts, Notional Amount	$ 114	$ 121

Derivatives and Hedging Activ_4

Derivatives and Hedging Activities - Schedule of Derivative Instruments Not Designated as Cash Flow Hedges (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Oct. 25, 2019	Oct. 26, 2018	Oct. 25, 2019	Oct. 26, 2018
Foreign Exchange Forward Contracts
Derivative Instruments, Gain (Loss) [Line Items]
Foreign currency exchange contracts	$ 0	$ 2	$ (3)	$ 12

Restructuring Charges - Additio

Restructuring Charges - Additional Information (Detail)	Oct. 25, 2019
May 2019 Restructuring
Restructuring Cost and Reserve [Line Items]
Reduction of global work force	2.00%
May 2018 Restructuring | Maximum
Restructuring Cost and Reserve [Line Items]
Reduction of global work force	2.00%
April 2019 Restructuring
Restructuring Cost and Reserve [Line Items]
Reduction of global work force	1.00%

Restructuring Charges - Activit

Restructuring Charges - Activities Related to Restructuring Reserves (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Oct. 25, 2019	Oct. 26, 2018	Oct. 25, 2019	Oct. 26, 2018
Restructuring Cost and Reserve [Line Items]
Balance at beginning of period			$ 19	$ 6
Net charges	$ 0	$ 0	21	19
Cash payments			(31)	(18)
Other			(4)	0
Balance at end of period	5	7	5	7
May 2019 Restructuring
Restructuring Cost and Reserve [Line Items]
Balance at beginning of period			0
Net charges			21
Cash payments			(19)
Other			0
Balance at end of period	2		2
April 2019 Restructuring
Restructuring Cost and Reserve [Line Items]
Balance at beginning of period			15
Net charges			0
Cash payments			(12)
Other			0
Balance at end of period	3		3
November 2016 Restructuring
Restructuring Cost and Reserve [Line Items]
Balance at beginning of period			4	6
Net charges			0	0
Cash payments			0	(1)
Other			(4)	0
Balance at end of period	0	$ 5	0	$ 5
May 2018 Restructuring
Restructuring Cost and Reserve [Line Items]
Balance at beginning of period			0
Net charges			19
Cash payments			(17)
Other			0
Balance at end of period	$ 2		$ 2

Income Taxes - Effective Tax Ra

Income Taxes - Effective Tax Rates (Detail)	6 Months Ended
	Oct. 25, 2019	Oct. 26, 2018
Income Tax Disclosure [Abstract]
Effective tax rates	17.20%	7.30%

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended		8 Months Ended
	Oct. 25, 2019	Oct. 26, 2018	Oct. 25, 2019	Oct. 26, 2018	Dec. 31, 2017	Apr. 26, 2019
Income Tax Contingency [Line Items]
U.S. federal corporate tax rate			21.00%		35.00%
Provision (benefit) for income taxes	$ 56	$ 52	$ 72	$ 41
Gross unrecognized tax benefits	294		294
Gross unrecognized tax benefits included in other long-term liabilities	251		251			$ 252
Unrecognized tax benefits that would affect provision for income taxes	$ 246		$ 246
Impact of ASC 606 Adoption | ASC 606
Income Tax Contingency [Line Items]
Provision (benefit) for income taxes				$ (34)

Net Income per Share - Computat

Net Income per Share - Computation of Basic and Diluted Net Income Per Share (Detail) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Oct. 25, 2019	Oct. 26, 2018	Oct. 25, 2019	Oct. 26, 2018
Net income per share:
Net income	$ 243	$ 241	$ 346	$ 524
Shares used in basic computation	235	258	237	260
Dilutive impact of employee equity award plans	1	6	3	7
Shares used in diluted computation	236	264	240	267
Basic	$ 1.03	$ 0.93	$ 1.46	$ 2.02
Diluted	$ 1.03	$ 0.91	$ 1.44	$ 1.96

Net Income per Share - Addition

Net Income per Share - Additional Information (Detail) - shares shares in Millions	3 Months Ended		6 Months Ended
	Oct. 25, 2019	Oct. 26, 2018	Oct. 25, 2019	Oct. 26, 2018
Earnings Per Share [Abstract]
Outstanding employee equity awards excluded from diluted net income per share calculations	6	0	3	0

Segment Geographic and Signific

Segment Geographic and Significant Customer Information - Additional Information (Detail) $ in Millions	3 Months Ended		6 Months Ended
	Oct. 25, 2019USD ($)	Oct. 26, 2018USD ($)	Oct. 25, 2019USD ($)Segment	Oct. 26, 2018USD ($)Segment
Segment Reporting Information [Line Items]
Number of industry segment | Segment			1	1
Net revenues	$ 1,371	$ 1,517	$ 2,607	$ 2,991
U.S.
Segment Reporting Information [Line Items]
Net revenues	$ 703	$ 789	$ 1,277	$ 1,550

Segment Geographic and Signif_2

Segment Geographic and Significant Customer Information - Schedule of Revenues by Geographic Region (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Oct. 25, 2019	Oct. 26, 2018	Oct. 25, 2019	Oct. 26, 2018
Segment Reporting Information [Line Items]
Net revenues	$ 1,371	$ 1,517	$ 2,607	$ 2,991
United States, Canada And Latin America (Americas)
Segment Reporting Information [Line Items]
Net revenues	771	868	1,406	1,711
Europe, Middle East And Africa (EMEA)
Segment Reporting Information [Line Items]
Net revenues	402	429	804	859
Asia Pacific (APAC)
Segment Reporting Information [Line Items]
Net revenues	$ 198	$ 220	$ 397	$ 421

Segment Geographic and Signif_3

Segment Geographic and Significant Customer Information - Schedule of Cash, Cash Equivalents and Short-Term Investments (Detail) - USD ($) $ in Millions	Oct. 25, 2019	Apr. 26, 2019
Segment Reporting Information [Line Items]
Cash, cash equivalents and short-term investments	$ 2,987	$ 3,899
U.S.
Segment Reporting Information [Line Items]
Cash, cash equivalents and short-term investments	125	159
International
Segment Reporting Information [Line Items]
Cash, cash equivalents and short-term investments	$ 2,862	$ 3,740

Segment Geographic and Signif_4

Segment Geographic and Significant Customer Information - Schedule of Property and Equipment Net by Geographic Areas (Detail) - USD ($) $ in Millions	Oct. 25, 2019	Apr. 26, 2019
Segment Reporting, Asset Reconciling Item [Line Items]
Property and equipment	$ 746	$ 759
U.S.
Segment Reporting, Asset Reconciling Item [Line Items]
Property and equipment	559	572
International
Segment Reporting, Asset Reconciling Item [Line Items]
Property and equipment	$ 187	$ 187

Segment Geographic and Signif_5

Segment Geographic and Significant Customer Information - Significant Customers (Detail) - Net Revenue - Customer Concentration Risk	3 Months Ended		6 Months Ended
	Oct. 25, 2019	Oct. 26, 2018	Oct. 25, 2019	Oct. 26, 2018
Arrow Electronics, Inc.
Segment Reporting Information [Line Items]
Percentage of net revenues	24.00%	24.00%	24.00%	23.00%
Tech Data Corporation
Segment Reporting Information [Line Items]
Percentage of net revenues	21.00%	21.00%	21.00%	19.00%

Segment Geographic and Signif_6

Segment Geographic and Significant Customer Information - Schedule of Net Accounts Receivable from Significant Customers (Detail) - Accounts Receivable - Credit Concentration Risk	6 Months Ended	12 Months Ended
	Oct. 25, 2019	Apr. 26, 2019
Arrow Electronics, Inc.
Segment Reporting Information [Line Items]
Percentage of net accounts receivable	11.00%	11.00%
Tech Data Corporation
Segment Reporting Information [Line Items]
Percentage of net accounts receivable	20.00%	24.00%

Commitments and Contingencies -

Commitments and Contingencies - Additional Information (Detail) - USD ($)	6 Months Ended
	Oct. 25, 2019	Oct. 26, 2018	Apr. 26, 2019
Commitments and Contingencies Disclosure [Line Items]
Accrued purchase commitments with contract manufacturers	$ 13,000,000		$ 16,000,000
Sale of finance receivables	$ 34,000,000	$ 43,000,000
Lawsuit commencement date	August 14, 2019
Lawsuit action domicile	United States District Court for the Northern District of California
Name of defendant	NetApp and certain of our executive officers
Loss contingency, laws affected	The complaint alleges that the defendants violated Section 10(b) and 20(a) of the Securities Exchange Act of 1934, as amended, and SEC Rule 10b-5, by making materially false or misleading statements with respect to our financial guidance for fiscal 2020, as provided on May 22, 2019.
Legal proceedings and claims	$ 0
Management estimation of loss contingency	Although management at present believes that the ultimate outcome of these proceedings, individually and in the aggregate, will not materially harm our financial position, results of operations, cash flows, or overall trends, legal proceedings are subject to inherent uncertainties, and unfavorable rulings or other events could occur. Unfavorable resolutions could include significant monetary damages. In addition, in matters for which injunctive relief or other conduct remedies are sought, unfavorable resolutions could include an injunction or other order prohibiting us from selling one or more products at all or in particular ways or requiring other remedies. An unfavorable outcome may result in a material adverse impact on our business, results of operations, financial position, and overall trends.
Maximum
Commitments and Contingencies Disclosure [Line Items]
Terms of recourse leases	3 years
Inventory
Commitments and Contingencies Disclosure [Line Items]
Purchase orders and other commitments	$ 447,000,000
Construction Related
Commitments and Contingencies Disclosure [Line Items]
Purchase orders and other commitments	5,000,000
Other
Commitments and Contingencies Disclosure [Line Items]
Purchase orders and other commitments	$ 244,000,000