FAIR VALUE (Fair Value of Financial Instruments) (Details) - USD ($) $ in Millions	Sep. 30, 2019	Dec. 31, 2018
Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale securities	$ 4.0	$ 3.8
Debt maturing within one year	(116.2)	(12.0)
Long-term debt	(1,589.1)	(1,581.6)
Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale securities	4.0	3.8
Debt maturing within one year	(117.4)	(12.0)
Long-term debt	(1,696.7)	(1,460.2)
Foreign exchange forward contracts | Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Foreign exchange forward contracts	15.0	(5.1)
Foreign exchange forward contracts | Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Foreign exchange forward contracts	$ 15.0	$ (5.1)