Taxes (Tax Effects That Give Rise To Significant Portions Of Deferred Tax Assets And Liabilities) (Details) (USD $) In Millions, unless otherwise specified	Feb. 02, 2013	Jan. 28, 2012
Deferred tax assets:
Post employment and postretirement benefits	$ 476	$ 559
Accrued liabilities accounted for on a cash basis for tax purposes	237	227
Long-term debt	96	109
Unrecognized state tax benefits and accrued interest	71	77
State operating loss and credit carryforwards	60	63
Other	177	151
Valuation allowance	(39)	(41)
Total deferred tax assets	1,078	1,145
Deferred tax liabilities:
Excess of book basis over tax basis of property and equipment	(1,665)	(1,733)
Merchandise inventories	(577)	(531)
Intangible assets	(230)	(195)
Other	(251)	(235)
Total deferred tax liabilities	(2,723)	(2,694)
Net deferred tax liability	$ (1,645)	$ (1,549)