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Stockholders' Equity - Amounts Reclassified Out of Accumulated Other Comprehensive Income (Loss) (Detail) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Oct. 30, 2020
Oct. 25, 2019
Oct. 30, 2020
Oct. 25, 2019
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Operating expenses $ (751) $ (629) $ (1,487) $ (1,341)
Other income (expense), net 7 (3) 39 (18)
Net revenues 1,416 1,371 2,719 2,607
Reclassification out of Accumulated Other Comprehensive Income        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Total reclassifications 7 (1) 8 (15)
Reclassification out of Accumulated Other Comprehensive Income | Recognized Gains on Defined Benefit Obligations        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Operating expenses 0 (1) 0 (1)
Reclassification out of Accumulated Other Comprehensive Income | Realized Gains on Available-for-Sale Securities        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Other income (expense), net 0 0 0 (14)
Reclassification out of Accumulated Other Comprehensive Income | Realized Losses on Cash Flow Hedges        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Net revenues $ 7 $ 0 $ 8 $ 0