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Earnings Per Share (Tables)
6 Months Ended
Jul. 30, 2011
Earnings Per Share  
Reconciliation Of The Number Of Shares (Denominator) Used In The Basic And Diluted EPS Computations
     Three Months Ended   Six Months Ended  
                 Effect of                             Effect of                 
            Dilutive                   Dilutive            
            Common                        Common            
      Basic   Stock     Diluted   Basic   Stock     Diluted  
  Shares in (000s)   EPS   Equivalents     EPS    EPS   Equivalents     EPS  
  July 30, 2011                                              
       Shares      113,652      1,936        115,588       114,208      1,996       116,204  
       Amount   $ 1.30   $ (0.02 )   $ 1.28      2.81   $ (0.05 )   2.76  
                                     
  July 31, 2010                                              
       Shares     118,615     1,947       120,562       119,222     2,021       121,243  
       Amount   $ 1.09   $ (0.02 )   $ 1.07     $ 2.28   $ (0.04 )   $ 2.24