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INCOME TAXES (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Dec. 31, 2016
Effective income tax rate (as a percent) 23.00% 29.20% 22.00% 28.80%  
Increase (decrease) in income taxes $ (6.0)   $ (15.0)    
Increase (decrease) in effective tax rate from foreign tax settlement (4.50%)   (1.40%)    
Increase (decrease) in effective tax rate from adoption of accounting standard     (4.00%)    
Increase (decrease) in effective tax rate from repatriation     (1.60%)    
Income tax uncertainties $ 3.6   $ 3.6   $ 6.4
Amount of income tax uncertainties that, if recognized, would impact the effective tax rate 3.6   3.6   $ 6.4
Decrease in liability for uncertain tax positions, high end of range $ 1.9   1.9    
Ministry of Economic Affairs and Finance, Italy          
Income tax uncertainties decrease resulting from settlements with taxing authorities     $ 2.2