Stockholders' Equity - Additional Information (Detail) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended							4 Months Ended		12 Months Ended			41 Months Ended
	May 11, 2014	Feb. 16, 2014	Nov. 24, 2013	May 12, 2013	Feb. 17, 2013		Nov. 25, 2012	Aug. 31, 2014	Sep. 01, 2013	Aug. 31, 2014	Sep. 01, 2013	Sep. 02, 2012	Aug. 31, 2014	Nov. 28, 2012	Apr. 01, 2011
Equity And Comprehensive Income [Line Items]
Dividends declared and paid	$ 0.355	$ 0.31	$ 0.31	$ 0.31	$ 7.275	[1]	$ 0.275	$ 0.355	$ 0.31	$ 1.33	$ 8.17	$ 1.03
Special Cash Dividend Declared And Paid Per Share														$ 7.00
Payment Of Special Cash Dividend														$ 3,049
Stock repurchase program, amount Authorized															4,000
Stock repurchased amount expiration date										Apr. 26, 2015
Stock repurchase program, amount repurchased										$ 334	$ 34	$ 617	$ 1,279

[1] Includes the special cash dividend of $7.00 per share paid in December 2012.