CONTINGENCIES - Litigation Contingency Accrual (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Loss Contingency Accrual [Roll Forward]
Litigation contingency accrual - Beginning of period	$ 2.1	$ 0.0	$ 1.9	$ 0.4
Adjustment to accruals - expense (income)	0.0	2.3	0.2	2.2
Cash payments	(1.8)	0.0	(1.8)	(0.3)
Litigation contingency accrual - End of period	$ 0.3	$ 2.3	$ 0.3	$ 2.3