Segment Reporting Information by Segment (Detail) - USD ($) $ in Millions	3 Months Ended		8 Months Ended		12 Months Ended
	May. 08, 2016	May. 10, 2015	May. 08, 2016	May. 10, 2015	Aug. 30, 2015
Segment Reporting Information [Line Items]
Total revenue	$ 26,769	$ 26,101	$ 82,159	$ 80,421	$ 116,199
Operating income	858	821	2,481	2,468	3,624
Depreciation and amortization	291	262	847	776	1,127
Additions to property and equipment	461	421	1,800	1,588	2,393
Net property and equipment	16,491	15,083	16,491	15,083	15,401
Total assets	33,873	33,109	33,873	33,109	33,017
Operating Segments [Member] | United States Operations
Segment Reporting Information [Line Items]
Total revenue	19,528	19,141	60,016	58,201	84,351
Operating income	539	551	1,542	1,540	2,308
Depreciation and amortization	220	199	636	580	848
Additions to property and equipment	335	302	1,252	1,065	1,574
Net property and equipment	11,466	10,494	11,466	10,494	10,815
Total assets	23,652	22,973	23,652	22,973	22,988
Operating Segments [Member] | Canadian Operations
Segment Reporting Information [Line Items]
Total revenue	3,869	3,778	11,542	12,010	17,341
Operating income	185	164	524	538	771
Depreciation and amortization	26	27	75	85	119
Additions to property and equipment	41	25	112	103	148
Net property and equipment	1,449	1,503	1,449	1,503	1,381
Total assets	3,373	3,859	3,373	3,859	3,608
Operating Segments [Member] | Other International Operations
Segment Reporting Information [Line Items]
Total revenue	3,372	3,182	10,601	10,210	14,507
Operating income	134	106	415	390	545
Depreciation and amortization	45	36	136	111	160
Additions to property and equipment	85	94	436	420	671
Net property and equipment	3,576	3,086	3,576	3,086	3,205
Total assets	$ 6,848	$ 6,277	$ 6,848	$ 6,277	$ 6,421