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Stockholders' Equity (Stock Repurchased During Period) (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Millions
12 Months Ended
Sep. 02, 2018
Sep. 03, 2017
Aug. 28, 2016
Stockholders' Equity Note [Abstract]      
Stock Repurchased and Retired During Period, Shares 1,756 2,998 3,184
Average price per share $ 183.13 $ 157.87 $ 149.90
Stock Repurchased and Retired During Period, Value $ 322 $ 473 $ 477