CONTINGENCIES - Litigation Contingency Accrual (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Loss Contingency Accrual [Roll Forward]
Litigation contingency accrual - Beginning of period	$ 1.9	$ 0.4
Adjustment to accruals - expense (income)	0.0	0.0
Cash payments	0.0	(0.4)
Litigation contingency accrual - End of period	$ 1.9	$ 0.0