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ACCOUNTING POLICIES (Details 2) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Component of Operating Income [Abstract]      
Gains (losses) on disposition of property, plant and equipment, net $ 0.0 $ (2.0) $ 3.1
Gains on insurance recoveries 0.0 8.0 0.0
Other 0.4 0.4 0.2
Other operating income $ 0.4 $ 6.4 $ 3.3