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Stockholders' Equity - Schedule of Employee Stock Purchase Plan (ESPP) (Detail) - USD ($) shares in Millions, $ in Millions | 6 Months Ended
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Oct. 29, 2021 | Oct. 30, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Shares issued under the ESPP | 1 | 1
Employee Stock Purchase Plan |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Proceeds from issuance of shares | $ 52 | $ 47

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