Stockholders' Equity - Additional Information (Details) - USD ($)	3 Months Ended							4 Months Ended		12 Months Ended
	May 07, 2017	[1]	Feb. 12, 2017	Nov. 20, 2016	May 08, 2016	Feb. 14, 2016	Nov. 22, 2015	Sep. 03, 2017	Aug. 28, 2016	Sep. 03, 2017	Aug. 28, 2016	Aug. 30, 2015	Apr. 17, 2015
Dividends Payable [Line Items]
Payment of dividends										$ 3,904,000,000	$ 746,000,000	$ 2,865,000,000
Stock repurchase program, remaining authorized repurchase amount								$ 2,749,000,000		$ 2,749,000,000
Dividends declared	$ 7.50		$ 0.45	$ 0.45	$ 0.45	$ 0.40	$ 0.40	$ 0.50	$ 0.45	$ 8.90	$ 1.70	$ 6.51
Previously authorized but unused share repurchase amounts revoked													$ 2,528,000,000
Stock repurchase program, authorized amount													$ 4,000,000,000
Special Dividend [Member]
Dividends Payable [Line Items]
Payment of dividends										$ 3,100,000,000		$ 2,201,000,000
Dividends paid per share										$ 7.00		$ 5.00

[1] Includes the special cash dividend of $7.00 per share paid in May 2017.