FINANCIAL INSTRUMENTS AND DERIVATIVES - GAIN (LOSS) ON AOCI - NET INVESTMENT HEDGES (Details) - Net Investment Hedging - Designated as Hedging Instrument - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Derivative [Line Items]
Gain (Loss) in AOCI	$ (2.4)	$ 13.2	$ (4.2)	$ (17.2)
Derivative, gain (loss) recognized in income (expense)	0.3	2.2	0.8	4.7
Foreign exchange forward contracts
Derivative [Line Items]
Gain (Loss) in AOCI	(2.4)	13.2	(4.2)	(17.2)
Foreign exchange forward contracts | Other Expense (Income), Net
Derivative [Line Items]
Derivative, gain (loss) recognized in income (expense)	$ 0.3	$ 2.2	$ 0.8	$ 4.7