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Stockholders' Equity - Schedule of Employee Stock Purchase Plan (ESPP) (Detail) - USD ($)
shares in Millions, $ in Millions
12 Months Ended
Apr. 25, 2025
Apr. 26, 2024
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Shares issued under the ESPP 2 2
Employee Stock Purchase Plan    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Proceeds from issuance of shares $ 108 $ 99