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STOCKHOLDERS' EQUITY (Details) (USD $)
In Millions, except Share data, unless otherwise specified
0 Months Ended 1 Months Ended 12 Months Ended
Jan. 02, 2013
Dec. 13, 2011
Sep. 30, 2010
Jan. 31, 2010
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Jul. 01, 2005
Long Term Incentive Plan
Jul. 01, 2010
2010 Omnibus Incentive Plan
Stock Repurchase Programs                  
Amount of company's outstanding common stock authorized to be repurchased $ 400.0 $ 400.0 $ 400.0 $ 275.1          
Number of Shares         1,000,000 2,900,000 2,500,000    
Total         137.4 240.9 148.7    
Unused balance under stock repurchase program         $ 262.6        
Stock Compensation Plans                  
Shares of common stock reserved for grant               4,750,000 3,000,000