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RESTRUCTURING AND OTHER COSTS - ADDITIONAL INFORMATION (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended	9 Months Ended
	Sep. 30, 2019	Mar. 31, 2019	Sep. 30, 2018	Jun. 30, 2019	Sep. 30, 2019	Sep. 30, 2018
Restructuring Cost and Reserve [Line Items]
Restructuring, incurred cost	$ 5.2		$ 12.1	$ 68.1		$ 211.2
Fixed asset impairment					$ 33.4	0.0
Indefinite-lived intangible asset impairment		$ 5.3			5.3	179.2
Net restructuring costs
Restructuring Cost and Reserve [Line Items]
Restructuring, incurred cost	(1.9)		11.7		23.0	22.5
Other Restructuring Costs
Restructuring Cost and Reserve [Line Items]
Restructuring, incurred cost	7.1		$ 0.4		45.1	188.7
Fixed asset impairment					32.8
Asset impairment					$ 9.1
Technologies & Equipment
Restructuring Cost and Reserve [Line Items]
Indefinite-lived intangible asset impairment						$ 179.2
Consumables \| Other Restructuring Costs
Restructuring Cost and Reserve [Line Items]
Impairment of intangible assets	$ 3.8