Derivative Financial Instruments - Foreign Exchange Contracts Outstanding to Sell Various Currencies (Details) In Millions, unless otherwise specified	Jan. 31, 2015 USD ($)		Jan. 31, 2015 CAD	Jan. 31, 2015 EUR (€)	Feb. 01, 2014 USD ($)		Feb. 01, 2014 CAD	Feb. 01, 2014 EUR (€)
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative, Notional Amount	$ 1,395	[1]	14	€ 1	$ 1,309	[1]	8	€ 25

[1] (1)The principal currencies hedged against changes in the U.S. dollar were British pounds, Canadian dollars, Euro, and Japanese yen.