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Income Taxes (Reconciliation Between Statutory And Effective Rates) (Details) - USD ($) $ in Millions	3 Months Ended							4 Months Ended		12 Months Ended
	May 13, 2018	Feb. 18, 2018	Nov. 26, 2017	May 07, 2017	[1]	Feb. 12, 2017	Nov. 20, 2016	Sep. 02, 2018	Sep. 03, 2017	Sep. 02, 2018	Sep. 03, 2017	Aug. 28, 2016
Income Tax Disclosure [Abstract]
Federal taxes at statutory rate										$ 1,136	$ 1,414	$ 1,267
Federal taxes at statutory rate (percent)										25.60%	35.00%	35.00%
State taxes, net										$ 154	$ 116	$ 91
State taxes, net (percent)										3.40%	2.90%	2.50%
Foreign taxes, net										$ 32	$ (64)	$ (21)
Foreign taxes, net (percent)										0.70%	(1.60%)	(0.60%)
Employee stock ownership plan (ESOP)										$ (14)	$ (104)	$ (17)
Employee stock ownership plan (ESOP) (percent)										(0.30%)	(2.60%)	(0.50%)
2017 Tax Act										$ 19
2017 Tax Act (percent)										0.40%
Other										$ (64)	$ (37)	$ (77)
Other (percent)										(1.40%)	(0.90%)	(2.10%)
Total provision for income taxes	$ 309	$ 273	$ 285	$ 259		$ 288	$ 291	$ 396	$ 487	$ 1,263	$ 1,325	$ 1,243
Total (percent)										28.40%	32.80%	34.30%
[1] Includes an $82 tax benefit recorded in the third quarter in connection with the special cash dividend paid to employees through the Company's 401(k) Retirement Plan.

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