Segment Reporting Information by Segment (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended						4 Months Ended		12 Months Ended
	May 11, 2014	Feb. 16, 2014	Nov. 24, 2013	May 12, 2013	Feb. 17, 2013	Nov. 25, 2012	Aug. 31, 2014	Sep. 01, 2013	Aug. 31, 2014	Sep. 01, 2013	Sep. 02, 2012
Segment Reporting Information [Line Items]
Total revenue	$ 25,794	$ 26,306	$ 25,017	$ 24,083	$ 24,871	$ 23,715	$ 35,523	$ 32,487	$ 112,640	$ 105,156	$ 99,137
Operating income	737	724	668	722	738	639	1,091	954	3,220	3,053	2,759
Depreciation and amortization									1,029	946	908
Additions to property and equipment									1,993	2,083	1,480
Net property and equipment							14,830	13,881	14,830	13,881	12,961
Total assets							33,024	30,283	33,024	30,283	27,140
Operating Segments [Member] | United States Operations
Segment Reporting Information [Line Items]
Total revenue									80,477	75,493	71,776
Operating income									1,880	1,810	1,632
Depreciation and amortization									755	696	667
Additions to property and equipment									1,245	1,090	1,012
Net property and equipment							10,132	9,652	10,132	9,652	9,236
Total assets							21,929	20,608	21,929	20,608	18,401
Operating Segments [Member] | Canadian Operations
Segment Reporting Information [Line Items]
Total revenue									17,943	17,179	15,717
Operating income									796	756	668
Depreciation and amortization									124	123	117
Additions to property and equipment									204	186	170
Net property and equipment							1,662	1,621	1,662	1,621	1,664
Total assets							4,892	4,529	4,892	4,529	4,237
Operating Segments [Member] | Other International Operations
Segment Reporting Information [Line Items]
Total revenue									14,220	12,484	11,644
Operating income									544	487	459
Depreciation and amortization									150	127	124
Additions to property and equipment									544	807	298
Net property and equipment							3,036	2,608	3,036	2,608	2,061
Total assets							$ 6,203	$ 5,146	$ 6,203	$ 5,146	$ 4,502