Long-term Debt (Narrative) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended			1 Months Ended
	Feb. 01, 2014	Feb. 02, 2013	Jan. 28, 2012	Mar. 31, 2011 Fixed Rate 6.625% Notes Due April 2021 [Member]	Feb. 29, 2012 Fixed Rate 5.625% Notes Due February 2022 [Member]	Nov. 02, 2013 Fixed Rate 5.625% Notes Due October 2023 [Member]	Oct. 10, 2013 Fixed Rate 5.625% Notes Due October 2023 [Member]
Cash paid for interest	$ 300	$ 276	$ 225
Debt instrument, face amount				1,000	1,000		500
Debt Instrument, Interest Rate, Stated Percentage				6.625%	5.625%		5.625%
Proceeds from Issuance of Long-term Debt	495	985	981	981	985	495
Notes issuance transaction costs				$ 19	$ 15	$ 5