Segments (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Nov. 02, 2013	Nov. 03, 2012	Nov. 02, 2013 segments	Nov. 03, 2012	Feb. 02, 2013
Business segment information
Number of reportable segments			2
Total revenue	$ 9,362	$ 9,381	$ 28,042	$ 29,093
Operating income (loss)	91	2	672	354
Other income (expense)
Gain on sale of investments	4	0	18	0
Investment income and other	8	10	18	15
Interest expense	(24)	(27)	(77)	(81)
Earnings (loss) from continuing operations before income tax expense (benefit)	79	(15)	631	288
Total assets	15,068	17,556	15,068	17,556	16,787
Domestic [Member]
Business segment information
Total revenue	7,847	7,673	23,635	24,298
Operating income (loss)	111	16	753	394
Other income (expense)
Total assets	11,971	11,291	11,971	11,291	10,874
International [Member]
Business segment information
Total revenue	1,515	1,708	4,407	4,795
Operating income (loss)	(20)	(14)	(81)	(40)
Other income (expense)
Total assets	$ 3,097	$ 6,265	$ 3,097	$ 6,265	$ 5,913