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Stockholders' Equity - Additional Information (Detail) - USD ($)
3 Months Ended 6 Months Ended 210 Months Ended
Nov. 23, 2020
Oct. 30, 2020
Oct. 25, 2019
Oct. 30, 2020
Oct. 25, 2019
Oct. 30, 2020
Apr. 24, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Unrecognized compensation expense related to equity awards   $ 398,000,000   $ 398,000,000   $ 398,000,000  
Unrecognized compensation expense will be amortized on a straight-line basis over a weighted-average remaining period, in years       2 years 6 months      
Stock repurchase program, authorized amount   13,600,000,000   $ 13,600,000,000   $ 13,600,000,000  
Repurchase of common stock, shares       0   338,000,000  
Average price of common stock repurchased under repurchase program           $ 38.86  
Aggregate purchase price of common stock authorized under repurchase program       $ 0 $ 750,000,000 $ 13,100,000,000  
Remaining authorized amount for stock repurchases under repurchase program   $ 477,000,000   $ 477,000,000   477,000,000  
Cash dividends declared, per common share   $ 0.48 $ 0.48 $ 0.96 $ 0.96    
Subsequent Event              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Cash dividends declared, per common share $ 0.48            
Cash dividend payable date Jan. 27, 2021            
Cash dividend record date Jan. 08, 2021            
Performance Based Restricted Stock Unit              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
RSUs grant date fair value   $ 25,000,000   $ 25,000,000   $ 25,000,000  
Performance Based Restricted Stock Unit | PBRSU One              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Vesting period       1 year      
Performance Based Restricted Stock Unit | PBRSU Two              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Vesting period       2 years      
Performance Based Restricted Stock Unit | PBRSU Three              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Vesting period       3 years      
Minimum              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Percentage of Common stock issued to settle PBRSUs of target shares granted       0.00%      
Maximum              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Number of options outstanding   1,000,000   1,000,000   1,000,000 1,000,000
Percentage of Common stock issued to settle PBRSUs of target shares granted       200.00%