Segments (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Nov. 01, 2014	Nov. 02, 2013	Nov. 01, 2014 segments	Nov. 02, 2013	Feb. 01, 2014
Segment Reporting [Abstract]
Number of reportable segments			2
Business segment information
Total revenue	$ 9,380	$ 9,327	$ 27,311	$ 27,940
Operating income (loss)	190	90	625	671
Gain on sale of investments	5	4	7	18
Other income (expense)
Investment income and other	3	8	17	18
Interest expense	(22)	(24)	(68)	(77)
Earnings from continuing operations before income tax (benefit) expense	176	78	581	630
Total assets	15,762	15,068	15,762	15,068	14,013
Domestic [Member]
Business segment information
Total revenue	7,992	7,812	23,358	23,533
Operating income (loss)	204	110	688	752
Other income (expense)
Total assets	13,137	11,971	13,137	11,971	11,146
International [Member]
Business segment information
Total revenue	1,388	1,515	3,953	4,407
Operating income (loss)	(14)	(20)	(63)	(81)
Other income (expense)
Total assets	$ 2,625	$ 3,097	$ 2,625	$ 3,097	$ 2,867