Derivative Financial Instrument (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 30, 2017	Jul. 31, 2016	Jul. 30, 2017	Jul. 31, 2016
Summary of Derivative Instruments [Abstract]
Derivative, Notional Amount	$ 200		$ 200
Notional amount of FX forward contract, designated as cash flow hedges	89	$ 61	163	$ 96
Notional amount of FX forward contract, not designated for hedge accounting	$ 69	$ 13	$ 120	$ 13