ENVIRONMENTAL (Details 2) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Environmental Remediation Obligations [Abstract]
Provisions charged to income	$ 20.9	$ 25.3	$ 7.3
Insurance recoveries for costs incurred and expensed	0.0	(4.8)	(111.0)
Environmental expense (income)	$ 20.9	20.5	$ (103.7)
Gross Recoveries from Third Parties of Costs Incurred and Expensed in Prior Periods		121.0
Environmental Recoveries Owed to Third-Party		$ 10.0