INCOME TAXES (Valuation Allowance Activity) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance as of January 1,	$ 151.9	$ 142.0	$ 144.4
Additions	42.5	15.7	11.6
Reversals	0.0	0.0	(9.1)
Foreign currency translation	(0.2)	(5.8)	(4.9)
Balance as of December 31,	$ 194.2	$ 151.9	$ 142.0