ACCOUNTING POLICIES (Details 1) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Component of Operating Income [Abstract]
Gains (losses) on disposition of property, plant and equipment, net	$ 3.1	$ (0.7)	$ (0.6)
Gains on insurance recoveries	0.0	11.0	46.0
Other	0.2	0.3	0.3
Other operating income	$ 3.3	$ 10.6	$ 45.7