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Supplemental Financial Information - Other Long-term Liabilities (Detail) - USD ($)
$ in Millions
Apr. 30, 2021
Apr. 24, 2020
Liabilities Other Than Long Term Debt Noncurrent [Abstract]    
Liability for uncertain tax positions $ 127 $ 136
Income taxes payable 351 399
Product warranty liabilities 11 15
Operating lease liabilities 71 93
Other liabilities 90 71
Other long-term liabilities $ 650 $ 714