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Goodwill and Purchased Intangible Assets, Net - Amortization Expense for Purchased Intangible Assets (Detail) - USD ($)
$ in Millions
 3 Months Ended
Jul. 26, 2024
Jul. 28, 2023
Acquired Finite Lived Intangible Assets [Line Items]    
Amortization expense $ 14 $ 15
Cost of revenues | Developed Technology    
Acquired Finite Lived Intangible Assets [Line Items]    
Amortization expense 8 9
Operating expenses | Customer Contracts/Relationships    
Acquired Finite Lived Intangible Assets [Line Items]    
Amortization expense 6 5
Operating expenses | Other Purchased Intangibles    
Acquired Finite Lived Intangible Assets [Line Items]    
Amortization expense $ 0 $ 1