Earnings Per Share - Summary (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Aug. 02, 2019	Aug. 03, 2018	Aug. 02, 2019	Aug. 03, 2018
Basic earnings per common share:
Net earnings	$ 1,676	$ 1,520	$ 2,722	$ 2,509
Less: Net earnings allocable to participating securities	(6)	(5)	(9)	(9)
Net earnings allocable to common shares, basic	$ 1,670	$ 1,515	$ 2,713	$ 2,500
Weighted-average common shares outstanding (in shares)	781	813	788	819
Basic earnings per common share (in dollars per share)	$ 2.14	$ 1.86	$ 3.44	$ 3.05
Diluted earnings per common share:
Net earnings	$ 1,676	$ 1,520	$ 2,722	$ 2,509
Less: Net earnings allocable to participating securities	(6)	(5)	(9)	(9)
Net earnings allocable to common shares, diluted	$ 1,670	$ 1,515	$ 2,713	$ 2,500
Weighted-average common shares outstanding (in shares)	781	813	788	819
Dilutive effect of non-participating share-based awards (in shares)	0	1	1	1
Weighted-average common shares, as adjusted (in shares)	781	814	789	820
Diluted earnings per common share (in dollars per share)	$ 2.14	$ 1.86	$ 3.44	$ 3.05