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Goodwill and Purchased Intangible Assets, Net - Purchased Intangible Assets, Net (Detail) - USD ($) $ in Millions | Jan. 29, 2021 | Apr. 24, 2020
--- | --- | ---
Acquired Finite Lived Intangible Assets [Line Items] |  |
Gross Assets | $ 256 | $ 196
Accumulated Amortization | (146) | (152)
Net Assets | 110 | 44
Developed Technology |  |
Acquired Finite Lived Intangible Assets [Line Items] |  |
Gross Assets | 215 | 192
Accumulated Amortization | (140) | (152)
Net Assets | 75 | 40
Customer Contracts/Relationships |  |
Acquired Finite Lived Intangible Assets [Line Items] |  |
Gross Assets | 38 | 4
Accumulated Amortization | (6) | 0
Net Assets | 32 | 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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