Taxes (Tax Effects That Give Rise To Significant Portions Of Deferred Tax Assets And Liabilities) (Details) (USD $) In Millions, unless otherwise specified	Feb. 01, 2014	Feb. 02, 2013
Deferred tax assets:
Post employment and postretirement benefits	$ 392	$ 476
Accrued liabilities accounted for on a cash basis for tax purposes	289	237
Long-term debt	90	96
Unrecognized state tax benefits and accrued interest	84	71
State operating loss and credit carryforwards	79	60
Other	160	177
Valuation allowance	(23)	(39)
Total deferred tax assets	1,071	1,078
Deferred tax liabilities:
Excess of book basis over tax basis of property and equipment	(1,569)	(1,665)
Merchandise inventories	(587)	(577)
Intangible assets	(263)	(230)
Deferred Tax Liabilities, Prepaid Expenses	(28)	0
Other	(297)	(251)
Total deferred tax liabilities	(2,744)	(2,723)
Net deferred tax liability	$ (1,673)	$ (1,645)