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Supplemental Financial Information - Accrued expenses (Detail) - USD ($)
$ in Millions
Apr. 24, 2020
Apr. 26, 2019
Payables And Accruals [Abstract]    
Accrued compensation and benefits $ 322 $ 433
Product warranty liabilities 26 25
Operating lease liabilities 51 0
Other current liabilities 375 393
Accrued expenses $ 774 $ 851