Rationalization Charges (Activity Related to Rationalization Charges) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Jan. 29, 2012	Jan. 30, 2011	Jan. 31, 2010
Restructuring Cost and Reserve [Line Items]
Accrued Rationalization Charges at beginning of period	$ 162	$ 214	$ 343
Fiscal Charges			146
Cash Uses	29	42	257
Non-cash Activity	(13)	10	18
Accrued Rationalization Charges at end of period	146	162	214
Asset Impairments [Member]
Restructuring Cost and Reserve [Line Items]
Accrued Rationalization Charges at beginning of period	4	23	38
Fiscal Charges			0
Cash Uses	0	0	0
Non-cash Activity	2	19	15
Accrued Rationalization Charges at end of period	2	4	23
Lease Obligations [Member]
Restructuring Cost and Reserve [Line Items]
Accrued Rationalization Charges at beginning of period	158	191	213
Fiscal Charges			84
Cash Uses	29	42	106
Non-cash Activity	(15)	(9)	0
Accrued Rationalization Charges at end of period	144	158	191
Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Accrued Rationalization Charges at beginning of period	0	0	72
Fiscal Charges			8
Cash Uses	0	0	80
Non-cash Activity	0	0	0
Accrued Rationalization Charges at end of period	0	0	0
Other Restructuring Charges [Member]
Restructuring Cost and Reserve [Line Items]
Accrued Rationalization Charges at beginning of period	0	0	20
Fiscal Charges			54
Cash Uses	0	0	71
Non-cash Activity	0	0	3
Accrued Rationalization Charges at end of period	$ 0	$ 0	$ 0