Net Income per Common and Common Equivalent Share - Schedule of Earnings per Share Effect on Net Income and Weighted Averegae Number of Dilutive Potential Common Stock (Details) (USD $) In Millions, except Share data in Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Feb. 15, 2015	Feb. 16, 2014	Feb. 15, 2015	Feb. 16, 2014
Earnings Per Share [Abstract]
Net income available to common stockholders after assumed conversion of dilutive securities	$ 598	$ 463	$ 1,094	$ 888
Weighted average number of common shares used in basic net income per common share	440,384	439,776	439,567	438,868
RSUs and stock options	2,500	3,025	2,943	3,730
Conversion of convertible notes	12	28	12	29
Weighted average number of common shares and dilutive potential of common stock used in diluted net income per share	442,896	442,829	442,522	442,627