Shareholders' Equity (Details) - USD ($) shares in Millions, $ in Millions		12 Months Ended
		Feb. 03, 2017		Jan. 29, 2016		Jan. 30, 2015
Shareholders' Equity
Reduction in retained earnings		$ 3,300		$ 3,600
Share Repurchases
Share repurchases, value		$ 3,577	[1]	$ 3,878	[1]	$ 3,927
Share repurchases, shares		47.7		54.5
Share Repurchase Program [Member]
Share Repurchases
Share repurchases, value	[1]	$ 3,500		$ 3,811
Share repurchases, shares		46.7		53.6
Shares Withheld from Employees [Member]
Share Repurchases
Share repurchases, value	[1]	$ 77		$ 67
Share repurchases, shares		1.0		0.9

[1] Reductions of $3.3 billion and $3.6 billion were recorded to retained earnings, after capital in excess of par value was depleted, for 2016 and 2015, respectively.