Annual report pursuant to Section 13 and 15(d)

Accounts Payable and Accrued Liabilities (Changes In Workers' Compensation And General Liability Reserves) (Details)

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Accounts Payable and Accrued Liabilities (Changes In Workers' Compensation And General Liability Reserves) (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Jan. 28, 2012
Jan. 29, 2011
Jan. 30, 2010
Jan. 31, 2009
Jan. 28, 2012
Charged To Costs And Expenses [Member]
Jan. 29, 2011
Charged To Costs And Expenses [Member]
Jan. 30, 2010
Charged To Costs And Expenses [Member]
Jan. 28, 2012
Payments, Net Of Recoveries [Member]
Jan. 29, 2011
Payments, Net Of Recoveries [Member]
Jan. 30, 2010
Payments, Net Of Recoveries [Member]
Balance, beginning of year $ 493 $ 488 $ 478 $ 495            
Increase (decrease) in workers' compensation liabilities         144 148 124 (139) (138) (141)
Balance, end of year $ 493 $ 488 $ 478 $ 495