Income Taxes (Components of Deferred Tax Assets/(Liabilities)) (Details) (USD $)
In Millions, unless otherwise specified
 12 Months Ended
Jan. 31, 2015
Feb. 01, 2014
Income Tax Disclosure [Abstract]    
Merchandise inventory $ 35 $ 49
Accrued vacation pay 24 28
Gift cards 76 69
Stock-based compensation 76 69
Deferred Tax Assets, State Taxes 25 36
Workers’ compensation/general liability 87 93
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Deferred Rent 35 32
Mirror savings plan 18 21
Net operating loss and tax credit carryforwards 1,100 918
Other 51 68
Total deferred tax assets 1,527 1,383
Valuation allowance (784) (304)
Total net deferred tax assets 743 1,079
Depreciation and amortization (851) (973)
Pension and other retiree obligations (3) (172)
Tax benefit transfers (59) (63)
Long-lived intangible assets (21) (13)
Total deferred tax liabilities (934) (1,221)
Total net deferred tax liabilities $ (191) $ (142)
Operating Loss Carryforwards, Expiration Dates For U.S. federal income tax purposes, we have $2.6 billion of gross NOL carryforwards that expire in 2032 and 2034 and $53 million of tax credit carryforwards that expire at various dates through 2034.