XML 75 R64.htm IDEA: XBRL DOCUMENT v3.5.0.2
Stockholders' Equity - Summary of Activities Related to Dividends on Common Stock (Detail) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended 6 Months Ended
Oct. 28, 2016
Oct. 30, 2015
Oct. 28, 2016
Oct. 30, 2015
Dividends, Common Stock [Abstract]        
Dividends per share declared $ 0.190 $ 0.180 $ 0.380 $ 0.360
Dividend payments     $ 105 $ 107
Additional Paid-in Capital        
Dividends, Common Stock [Abstract]        
Dividend payments     76 84
Retained Earnings        
Dividends, Common Stock [Abstract]        
Dividend payments     $ 29 $ 23