Segment Reporting Information by Segment (Details) - USD ($) $ in Millions	3 Months Ended						4 Months Ended		12 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
Segment Reporting Information [Line Items]
Total revenue									$ 152,703	$ 141,576	$ 129,025
Operating Income	$ 1,122	$ 1,203	$ 949	$ 1,067	$ 1,016	$ 951	$ 1,463	$ 1,446	4,737	4,480	4,111
Depreciation and amortization									1,492	1,437	1,370
Additions to property and equipment									2,998	2,969	2,502
Net property and equipment							20,890	19,681	20,890	19,681	18,161
Total assets							45,400	40,830	45,400	40,830	36,347
Operating Segments | United States Operations
Segment Reporting Information [Line Items]
Total revenue									111,751	102,286	93,889
Operating Income									3,063	2,787	2,644
Depreciation and amortization									1,126	1,078	1,044
Additions to property and equipment									2,186	2,046	1,714
Net property and equipment							14,367	13,353	14,367	13,353	12,339
Total assets							32,162	28,207	32,162	28,207	24,068
Operating Segments | Canadian Operations
Segment Reporting Information [Line Items]
Total revenue									21,366	20,689	18,775
Operating Income									924	939	841
Depreciation and amortization									143	135	124
Additions to property and equipment									303	268	277
Net property and equipment							2,044	1,900	2,044	1,900	1,820
Total assets							4,369	4,303	4,369	4,303	4,471
Operating Segments | Other International Operations
Segment Reporting Information [Line Items]
Total revenue									19,586	18,601	16,361
Operating Income									750	754	626
Depreciation and amortization									223	224	202
Additions to property and equipment									509	655	511
Net property and equipment							4,479	4,428	4,479	4,428	4,002
Total assets							$ 8,869	$ 8,320	$ 8,869	$ 8,320	$ 7,808