Derivative Financial Instruments - Foreign Exchange Contracts Outstanding to Sell Various Currencies (Details) - USD ($) $ in Millions	Jul. 29, 2017	Jan. 28, 2017	Jul. 30, 2016
Derivative [Line Items]
Derivative, Notional Amount	$ 1,792	$ 1,750	$ 2,106
Derivatives in cash flow hedging relationships
Derivative [Line Items]
Derivative, Notional Amount	1,146	1,101	1,449
Derivatives in net investment hedging relationships
Derivative [Line Items]
Derivative, Notional Amount	30	31	32
Not Designated as Hedging Instrument
Derivative [Line Items]
Derivative, Notional Amount	$ 616	$ 618	$ 625