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Stockholders' Equity (Stock Repurchased During Period) (Detail) - USD ($)
$ / shares in Units, shares in Thousands, $ in Millions
12 Months Ended
Aug. 28, 2016
Aug. 30, 2015
Aug. 31, 2014
Stockholders' Equity Note [Abstract]      
Shares repurchased (000's) 3,184 3,456 2,915
Average price per share $ 149.90 $ 142.87 $ 114.45
Total cost $ 477 $ 494 $ 334