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INCOME TAXES QTR (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Effective income tax rate (as a percent) 31.00% 23.40% 29.40% 25.60%
Tax benefits from employee share-based compensation $ 2.0 $ 4.5 $ 13.6 $ 9.9
Net tax benefit from discrete events   5.0 4.3 15.1
Charge to record valuation allowance     7.0  
Tax benefit, Tax Cuts and Jobs Act   $ 1.9   $ 5.4
Ministry of the Economy, Finance and Industry, France        
Impact from change in enacted tax rate $ 2.1   $ 2.1