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SHAREHOLDERS' EQUITY SHAREHOLDERS' EQUITY, EARNINGS PER SHARE (Details) (Stock Options [Member])
In Millions, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Sep. 30, 2012
Sep. 30, 2011
Stock Options [Member]
       
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 0.2 0.2 0.2 0.3