Income Taxes (Provision for Income Taxes) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Jan. 28, 2012	Jan. 29, 2011	Jan. 30, 2010
Current
U.S. Federal	$ 357	$ 406	$ 138
U.S. State	46	54	1
Non-U.S.	11	10	14
Total	414	470	153
Deferred
U.S. Federal	6	(20)	47
U.S. State	1	(3)	8
Non-U.S.	(44)	(1)	(6)
Total	(37)	(24)	49
Provision for Income Taxes	$ 377	$ 446	$ 202