Consolidated Statements of Operations - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Jan. 28, 2017	Jan. 30, 2016	Jan. 31, 2015
Income Statement [Abstract]
Sales	$ 69,495	$ 73,785	$ 72,618
Cost of sales	48,872	51,997	51,278
Gross margin	20,623	21,788	21,340
Selling, general and administrative expenses	13,356	14,665	14,676
Depreciation and amortization	2,298	2,213	2,129
Gain on sale	0	(620)	0
Earnings from continuing operations before interest expense and income taxes	4,969	5,530	4,535
Net interest expense	1,004	607	882
Earnings from continuing operations before income taxes	3,965	4,923	3,653
Provision for income taxes	1,296	1,602	1,204
Net earnings from continuing operations	2,669	3,321	2,449
Discontinued operations, net of tax	68	42	(4,085)
Net earnings / (loss)	$ 2,737	$ 3,363	$ (1,636)
Basic earnings / (loss) per share
Continuing operations (in dollars per share)	$ 4.62	$ 5.29	$ 3.86
Discontinued operations (in dollars per share)	0.12	0.07	(6.44)
Net earnings/(loss) per share (in dollars per share)	4.74	5.35	(2.58)
Diluted earnings / (loss) per share
Continuing operations (in dollars per share)	4.58	5.25	3.83
Discontinued operations (in dollars per share)	0.12	0.07	(6.38)
Net earnings/(loss) per share (in dollars per share)	$ 4.70	$ 5.31	$ (2.56)
Weighted average common shares outstanding
Basic (in shares)	577.6	627.7	634.7
Dilutive effect of share-based awards (in shares)	4.9	5.2	5.4
Diluted (in shares)	582.5	632.9	640.1
Antidilutive shares (in shares)	0.1	0.0	3.3
Dividends declared per share (in dollars per share)	$ 2.36	$ 2.20	$ 1.99