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COMMITMENTS AND CONTINGENCIES (Details) - USD ($)
$ in Millions
6 Months Ended
Jun. 30, 2016
Jun. 30, 2017
Dec. 31, 2016
Commitments and Contingencies Disclosure [Abstract]      
Legal action liabilities $ 22.1 $ 15.9 $ 13.6
Gain in Other Operating Income due to Insurance Recoveries $ 11.0