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Stockholders' Equity - Number and Value of Shares Netted for Employee Taxes (Detail) - Restricted Stock Units - USD ($)
shares in Millions, $ in Millions
9 Months Ended
Jan. 28, 2022
Jan. 29, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Shares withheld for taxes 1 1
Fair value of shares withheld $ 69 $ 38