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Goodwill and Purchased Intangible Assets, Net - Amortization Expense for Purchased Intangible Assets (Detail) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Oct. 25, 2024
Oct. 27, 2023
Oct. 25, 2024
Oct. 27, 2023
Acquired Finite Lived Intangible Assets [Line Items]        
Amortization expense $ 14 $ 14 $ 28 $ 29
Cost of revenues | Developed Technology        
Acquired Finite Lived Intangible Assets [Line Items]        
Amortization expense 9 8 17 17
Operating expenses | Customer Contracts/Relationships        
Acquired Finite Lived Intangible Assets [Line Items]        
Amortization expense 5 6 11 11
Operating expenses | Other Purchased Intangibles        
Acquired Finite Lived Intangible Assets [Line Items]        
Amortization expense $ 0 $ 0 $ 0 $ 1