Shareholders' Equity (Summary Of Share Repurchase Activity) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions		12 Months Ended
		Feb. 03, 2018	Jan. 28, 2017	Jan. 30, 2016
Share Repurchase Program [Line Items]
Capacity beginning balance		$ 529	$ 811	$ 1,075
Shares repurchased (in shares)		4.6	5.9	19.1
Shares repurchased, average price per share (in dollars per share)		$ 45	$ 48	$ 63
Shares repurchased (amount)		$ (206)	$ (282)	$ (1,191)
Capacity ending balance		414	$ 529	811
2015 Program [Member]
Share Repurchase Program [Line Items]
Share repurchase authorization				1,000
Expiration of unused capacity		(409)
2013 Program [Member]
Share Repurchase Program [Line Items]
Expiration of unused capacity	[1]			$ (73)
2017 Program [Member]
Share Repurchase Program [Line Items]
Share repurchase authorization		$ 500

[1] Expiration relates to the February 2013 program.