Segment Reporting - Schedule of Business Segment Results (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Feb. 03, 2018	Oct. 28, 2017	Jul. 29, 2017	Apr. 29, 2017	Jan. 28, 2017	Oct. 29, 2016	Jul. 30, 2016	Apr. 30, 2016	Feb. 03, 2018		Jan. 28, 2017		Jan. 30, 2016
Segment Reporting [Abstract]
Sales	$ 22,766	$ 16,667	$ 16,429	$ 16,017	$ 20,690	$ 16,441	$ 16,169	$ 16,196	$ 71,879		$ 69,495		$ 73,785
Cost of sales	16,795	11,712	11,419	11,199	15,188	11,536	11,172	11,250	51,125	[1]	49,145	[1]	52,241	[1]
Gross margin	5,971	4,955	5,010	4,818	5,502	4,905	4,997	4,946	20,754		20,350		21,544
Selling, general and administrative expenses									14,248		13,360		14,448
Depreciation and amortization (exclusive of depreciation included in cost of sales)	598	574	514	508	540	505	500	481	2,194	[1]	2,025	[1]	1,969	[1]
Segment earnings before interest expense and income taxes									4,312		4,965		5,127
Gain on sale									0		0		620
Restructuring costs									0		0		(138)
Other									0		4		(78)
Earnings from continuing operations before interest expense and income taxes	1,152	869	1,114	1,178	1,348	1,061	1,248	1,312	4,312		4,969		5,530
Net interest expense	134	254	135	144	140	142	307	415	666		1,004		607
Earnings from continuing operations before income taxes	$ 1,018	$ 615	$ 979	$ 1,034	$ 1,208	$ 919	$ 941	$ 897	$ 3,646		$ 3,965		4,923
Data breach expenses													39
Impairment of certain noncore operations													$ 39

[1] Refer to Note 3 for additional information about a reclassification of supply chain-related depreciation expense to Cost of Sales.