CONTINGENCIES - Litigation Contingency Accrual (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Loss Contingency Accrual [Roll Forward]
Litigation contingency accrual - Beginning of period	$ 0.0	$ 3.4	$ 0.4	$ 3.2
Adjustment to accruals - expense (income)	2.3	0.0	2.2	0.2
Cash payments	0.0	(5.0)	(0.3)	(5.0)
Litigation contingency accrual - End of period	2.3	0.0	2.3	0.0
Discontinued Operations
Loss Contingency Accrual [Roll Forward]
Adjustment to accruals - expense (income)	$ 0.0	$ 1.6	$ 0.0	$ 1.6