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Share-Based Compensation Share-Based Compensation - Additional Information About Stock Unit Activity (Details) (Stock Units [Member], USD $)
In Millions, except Per Share data, unless otherwise specified
12 Months Ended
Feb. 02, 2013
Jan. 28, 2012
Jan. 29, 2011
Stock Units [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Weighted Average Fair Value Per Share of Stock Units Granted Including Those Subject to Performance Conditions $ 24.95 $ 20.19 $ 21.84
Grant-date fair value of Stock Units vested (in millions) $ 50 $ 58 $ 58