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SHAREHOLDERS' EQUITY (Tables)
6 Months Ended
Jul. 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        $ 49.39   

Shares of treasury stock reissued

     (505,686)      
  

 

 

    

Treasury stock held at July 31, 2012

     21,484,292        $ 42.25