Share Repurchases - Additional Information (Details) - USD ($) $ in Millions	Jul. 29, 2017	Jan. 28, 2017	Jul. 30, 2016	Feb. 25, 2016
Disclosure Share Repurchases Additional Information [Abstract]
Stock Repurchase Program, Authorized Amount				$ 1,000
Share repurchases, remaining amount	$ 800
Stock Repurchase Program Amount Not Paid	$ 0	$ 0	$ 0