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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 | 12 Months Ended
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Apr. 24, 2020 | Apr. 26, 2019 | Apr. 27, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Shares withheld for taxes | 1 | 1 | 2
Fair value of shares withheld | $ 79 | $ 96 | $ 75

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- Definition Number of shares used to settle grantee's tax withholding obligation for award under share-based payment arrangement. + References No definition available. + Details
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- Details
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