Investments (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended							6 Months Ended
	Aug. 03, 2013 investments	May 04, 2013	Feb. 02, 2013	Aug. 04, 2012	May 05, 2012	Mar. 03, 2012	Jan. 28, 2012	Aug. 03, 2013 Debt Securities (Auction-Rate Securities) [Member]	Feb. 02, 2013 Debt Securities (Auction-Rate Securities) [Member]	Aug. 04, 2012 Debt Securities (Auction-Rate Securities) [Member]	Aug. 03, 2013 Marketable Equity Securities [Member]	Feb. 02, 2013 Marketable Equity Securities [Member]	Aug. 04, 2012 Marketable Equity Securities [Member]	Aug. 03, 2013 Other Investments [Member]	Feb. 02, 2013 Other Investments [Member]	Aug. 04, 2012 Other Investments [Member]
Schedule of Investments
Total equity and other investments	$ 59		$ 86	$ 91				$ 16	$ 21	$ 22	$ 4	$ 27	$ 3	$ 39	$ 38	$ 66
Securities redeemed	5
Investments in portfolio (investments)	5
Investments, Fair Value Disclosure								16
Auction Rate Securities, Par Value								17
Pre-tax unrealized gain (loss) in accumulated other comprehensive income								(1)
Accumulated Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax	$ 1	$ 2	$ (1)	$ (1)	$ (3)	$ (3)	$ (4)	$ 0	$ (1)	$ (1)	$ 1	$ 3	$ 1