Segment Reporting Information by Segment (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	Feb. 12, 2017	Nov. 20, 2016	Sep. 02, 2018	Sep. 03, 2017	Sep. 02, 2018	Sep. 03, 2017	Aug. 28, 2016
Segment Reporting Information [Line Items]
Total revenue									$ 141,576	$ 129,025	$ 118,719
Operating Income	$ 1,067	$ 1,016	$ 951	$ 968	$ 844	$ 849	$ 1,446	$ 1,450	4,480	4,111	3,672
Depreciation and amortization									1,437	1,370	1,255
Additions to property and equipment									2,969	2,502	2,649
Net property and equipment							19,681	18,161	19,681	18,161	17,043
Total assets							40,830	36,347	40,830	36,347	33,163
Operating Segments | United States Operations
Segment Reporting Information [Line Items]
Total revenue									102,286	93,889	86,579
Operating Income									2,787	2,644	2,326
Depreciation and amortization									1,078	1,044	946
Additions to property and equipment									2,046	1,714	1,823
Net property and equipment							13,353	12,339	13,353	12,339	11,745
Total assets							28,207	24,068	28,207	24,068	22,511
Operating Segments | Canadian Operations
Segment Reporting Information [Line Items]
Total revenue									20,689	18,775	17,028
Operating Income									939	841	778
Depreciation and amortization									135	124	109
Additions to property and equipment									268	277	299
Net property and equipment							1,900	1,820	1,900	1,820	1,628
Total assets							4,303	4,471	4,303	4,471	3,480
Operating Segments | Other International Operations
Segment Reporting Information [Line Items]
Total revenue									18,601	16,361	15,112
Operating Income									754	626	568
Depreciation and amortization									224	202	200
Additions to property and equipment									655	511	527
Net property and equipment							4,428	4,002	4,428	4,002	3,670
Total assets							$ 8,320	$ 7,808	$ 8,320	$ 7,808	$ 7,172