Segment Reporting Information by Segment (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended		12 Months Ended
	Feb. 14, 2016	Feb. 15, 2015	Feb. 14, 2016	Feb. 15, 2015	Aug. 30, 2015
Segment Reporting Information [Line Items]
Total revenue	$ 28,170	$ 27,454	$ 55,390	$ 54,320	$ 116,199
Operating income	856	877	1,623	1,647	3,624
Depreciation and amortization	285	260	556	514	1,127
Additions to property and equipment	624	612	1,339	1,167	2,393
Net property and equipment	16,065	14,872	16,065	14,872	15,401
Total assets	32,388	33,217	32,388	33,217	33,017
Operating Segments [Member] | United States Operations
Segment Reporting Information [Line Items]
Total revenue	20,642	19,879	40,488	39,060	84,351
Operating income	552	556	1,003	989	2,308
Depreciation and amortization	212	193	416	381	848
Additions to property and equipment	460	327	917	763	1,574
Net property and equipment	11,327	10,403	11,327	10,403	10,815
Total assets	22,733	23,232	22,733	23,232	22,988
Operating Segments [Member] | Canadian Operations
Segment Reporting Information [Line Items]
Total revenue	3,791	4,001	7,673	8,232	17,341
Operating income	156	178	339	374	771
Depreciation and amortization	24	30	49	58	119
Additions to property and equipment	30	32	71	78	148
Net property and equipment	1,325	1,457	1,325	1,457	1,381
Total assets	3,076	3,856	3,076	3,856	3,608
Operating Segments [Member] | Other International Operations
Segment Reporting Information [Line Items]
Total revenue	3,737	3,574	7,229	7,028	14,507
Operating income	148	143	281	284	545
Depreciation and amortization	49	37	91	75	160
Additions to property and equipment	134	253	351	326	671
Net property and equipment	3,413	3,012	3,413	3,012	3,205
Total assets	$ 6,579	$ 6,129	$ 6,579	$ 6,129	$ 6,421