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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			20 Months Ended
	May 12, 2019	Feb. 17, 2019	Nov. 25, 2018	May 13, 2018	Feb. 18, 2018	Nov. 26, 2017	Sep. 01, 2019	Sep. 02, 2018	Sep. 01, 2019	Sep. 02, 2018	Sep. 03, 2017	Sep. 01, 2019
Income Tax Disclosure [Abstract]
Federal taxes at statutory rate									$ 1,001	$ 1,136	$ 1,414
Federal taxes at statutory rate (percent)									21.00%	25.60%	35.00%	21.00%
State taxes, net									$ 171	$ 154	$ 116
State taxes, net (percent)									3.60%	3.40%	2.90%
Foreign taxes, net									$ (1)	$ 32	$ (64)
Foreign taxes, net (percent)									0.00%	0.70%	(1.60%)
Employee stock ownership plan (ESOP)									$ (18)	$ (14)	$ (104)
Employee stock ownership plan (ESOP) (percent)									(0.40%)	(0.30%)	(2.60%)
2017 Tax Act									$ (123)	$ 19
2017 Tax Act (percent)									(2.60%)	0.40%
Other									$ 31	$ (64)	$ (37)
Other (percent)									0.70%	(1.40%)	(0.90%)
Total provision for income taxes	$ 207	$ 314	$ 158	$ 309	$ 273	$ 285	$ 382	$ 396	$ 1,061	$ 1,263	$ 1,325
Total (percent)									22.30%	28.40%	32.80%

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