Segment Reporting Information by Segment (Detail) - USD ($) $ in Millions	3 Months Ended						4 Months Ended		12 Months Ended
	May. 10, 2015	Feb. 15, 2015	Nov. 23, 2014	May. 11, 2014	Feb. 16, 2014	Nov. 24, 2013	Aug. 30, 2015	Aug. 31, 2014	Aug. 30, 2015	Aug. 31, 2014	Sep. 01, 2013
Segment Reporting Information [Line Items]
Total revenue	$ 26,101	$ 27,454	$ 26,866	$ 25,794	$ 26,306	$ 25,017	$ 35,778	$ 35,523	$ 116,199	$ 112,640	$ 105,156
Operating income	$ 821	$ 877	$ 770	$ 737	$ 724	$ 668	1,156	1,091	3,624	3,220	3,053
Depreciation and amortization									1,127	1,029	946
Additions to property and equipment									2,393	1,993	2,083
Net property and equipment							15,401	14,830	15,401	14,830	13,881
Total assets							33,440	33,024	33,440	33,024	30,283
Operating Segments [Member] | United States Operations
Segment Reporting Information [Line Items]
Total revenue									84,351	80,477	75,493
Operating income									2,308	1,880	1,810
Depreciation and amortization									848	755	696
Additions to property and equipment									1,574	1,245	1,090
Net property and equipment							10,815	10,132	10,815	10,132	9,652
Total assets							23,397	21,929	23,397	21,929	20,608
Operating Segments [Member] | Canadian Operations
Segment Reporting Information [Line Items]
Total revenue									17,341	17,943	17,179
Operating income									771	796	756
Depreciation and amortization									119	124	123
Additions to property and equipment									148	204	186
Net property and equipment							1,381	1,662	1,381	1,662	1,621
Total assets							3,608	4,892	3,608	4,892	4,529
Operating Segments [Member] | Other International Operations
Segment Reporting Information [Line Items]
Total revenue									14,507	14,220	12,484
Operating income									545	544	487
Depreciation and amortization									160	150	127
Additions to property and equipment									671	544	807
Net property and equipment							3,205	3,036	3,205	3,036	2,608
Total assets							$ 6,435	$ 6,203	$ 6,435	$ 6,203	$ 5,146