Share Repurchase Activity (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions		3 Months Ended		9 Months Ended
		Nov. 03, 2018	Oct. 28, 2017	Nov. 03, 2018	Oct. 28, 2017
Disclosure Share Repurchase Activity [Abstract]
Number of shares repurchased	[1]	3.6	3.8	10.0	12.5
Total cost		$ 100	$ 100	$ 300	$ 300
Average per share cost including commissions (in dollars per share)		$ 28.09	$ 26.64	$ 30.01	$ 24.21

[1] Excludes shares withheld to settle employee statutory tax withholding related to the vesting of stock units.