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Goodwill and Purchased Intangible Assets, Net - Purchased Intangible Assets, Net (Detail) - USD ($) $ in Millions | Jul. 31, 2020 | Apr. 24, 2020
--- | --- | ---
Acquired Finite Lived Intangible Assets [Line Items] |  |
Gross Assets | $ 256 | $ 196
Accumulated Amortization | (116) | (152)
Net Assets | 140 | 44
Developed Technology |  |
Acquired Finite Lived Intangible Assets [Line Items] |  |
Gross Assets | 215 | 192
Accumulated Amortization | (116) | (152)
Net Assets | 99 | 40
Customer Contracts/Relationships |  |
Acquired Finite Lived Intangible Assets [Line Items] |  |
Gross Assets | 38 | 4
Accumulated Amortization | 0 | 0
Net Assets | 38 | 4
Other Purchased Intangibles |  |
Acquired Finite Lived Intangible Assets [Line Items] |  |
Gross Assets | 3 | 0
Accumulated Amortization | 0 | 0
Net Assets | $ 3 | $ 0

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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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