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Goodwill and Purchased Intangible Assets, Net - Amortization Expense for Purchased Intangible Assets (Detail) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jan. 24, 2025 | Jan. 26, 2024 | Jan. 24, 2025 | Jan. 26, 2024
Acquired Finite Lived Intangible Assets [Line Items] |  |  |  |
Amortization expense | $ 13 | $ 14 | $ 41 | $ 43
Cost of revenues | Developed Technology |  |  |  |
Acquired Finite Lived Intangible Assets [Line Items] |  |  |  |
Amortization expense | 8 | 9 | 25 | 26
Operating expenses | Customer Contracts/Relationships |  |  |  |
Acquired Finite Lived Intangible Assets [Line Items] |  |  |  |
Amortization expense | 5 | 5 | 16 | 16
Operating expenses | Other Purchased Intangibles |  |  |  |
Acquired Finite Lived Intangible Assets [Line Items] |  |  |  |
Amortization expense | $ 0 | $ 0 | $ 0 | $ 1

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