XML 46 R34.htm IDEA: XBRL DOCUMENT v3.19.1
Equity (Stock Repurchased During Period) (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Millions
3 Months Ended 6 Months Ended
Feb. 17, 2019
Feb. 18, 2018
Feb. 17, 2019
Feb. 18, 2018
Equity [Abstract]        
Shares repurchased (000's) 561 313 711 1,047
Average price per share $ 208.72 $ 187.70 $ 213.08 $ 170.06
Total Cost $ 117 $ 59 $ 151 $ 178