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SHAREHOLDERS' EQUITY (Tables)
9 Months Ended
Oct. 31, 2012
Company's Common Share Repurchases and Issuance Activity
     Shares     Weighted-
average
price per
share
 

Treasury stock held at January 31, 2012

     18,166,761      $ 40.71   

Shares of common stock repurchased under share repurchase programs and other shares acquired

     3,823,217      $ 49.40   

Shares of treasury stock reissued

     (511,458  
  

 

 

   

Treasury stock held at October 31, 2012

     21,478,520      $ 42.25