Segment Reporting Information by Segment (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended		12 Months Ended
	Feb. 12, 2017	Feb. 14, 2016	Feb. 12, 2017	Feb. 14, 2016	Aug. 28, 2016
Segment Reporting Information [Line Items]
Total revenue	$ 29,766	$ 28,170	$ 57,865	$ 55,390	$ 118,719
Operating income	844	856	1,693	1,623	3,672
Depreciation and amortization	312	285	609	556	1,255
Additions to property and equipment	516	624	1,183	1,339	2,649
Net property and equipment	17,342	16,065	17,342	16,065	17,043
Total assets	35,630	32,388	35,630	32,388	33,163
Operating Segments [Member] | United States Operations
Segment Reporting Information [Line Items]
Total revenue	21,764	20,642	42,141	40,488	86,579
Operating income	520	552	1,026	1,003	2,326
Depreciation and amortization	241	212	467	416	946
Additions to property and equipment	358	460	784	917	1,823
Net property and equipment	12,040	11,327	12,040	11,327	11,745
Total assets	24,735	22,733	24,735	22,733	22,511
Operating Segments [Member] | Canadian Operations
Segment Reporting Information [Line Items]
Total revenue	4,229	3,791	8,328	7,673	17,028
Operating income	180	156	371	339	778
Depreciation and amortization	27	24	53	49	109
Additions to property and equipment	56	30	166	71	299
Net property and equipment	1,688	1,325	1,688	1,325	1,628
Total assets	3,926	3,076	3,926	3,076	3,480
Operating Segments [Member] | Other International Operations
Segment Reporting Information [Line Items]
Total revenue	3,773	3,737	7,396	7,229	15,112
Operating income	144	148	296	281	568
Depreciation and amortization	44	49	89	91	200
Additions to property and equipment	102	134	233	351	527
Net property and equipment	3,614	3,413	3,614	3,413	3,670
Total assets	$ 6,969	$ 6,579	$ 6,969	$ 6,579	$ 7,172