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Stockholders' Equity - Summary of Activities Related to Dividends on Common Stock (Detail) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended
Jul. 30, 2021
Jul. 31, 2020
Jul. 31, 2020
Dividends, Common Stock [Abstract]      
Dividends per share declared $ 0.50 $ 0.48  
Dividend payments $ 112   $ 107
Additional Paid-in Capital      
Dividends, Common Stock [Abstract]      
Dividend payments 0 $ 30  
Retained Earnings      
Dividends, Common Stock [Abstract]      
Dividend payments $ 112 $ 77