Income Taxes (Provision for Income Taxes) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Jan. 29, 2012		Jan. 30, 2011		Jan. 31, 2010
Current:
Federal	$ 1,566		$ 1,478		$ 1,157
State	234		181		184
Foreign	150		151		195
Total Current	1,950		1,810		1,536
Deferred:
Federal	199		79		(121)
State	35		21		(24)
Foreign	1		25		(29)
Total Deferred	235		125		(174)
Provision for Income Taxes	$ 2,185	[1]	$ 1,935	[1]	$ 1,362	[1]

[1] Fiscal years ended January 29, 2012, January 30, 2011 and January 31, 2010 include 52 weeks.