FINANCIAL INSTRUMENTS AND DERIVATIVES - NET INVESTMENT HEDGES (Details) $ in Millions	Mar. 31, 2020 USD ($)
Net Investment Hedging | Designated as Hedging Instrument
Derivative [Line Items]
Aggregate Notional Amount	$ 995.5
Aggregate Notional Amount Maturing within 12 Months	705.6
Net Investment Hedging | Designated as Hedging Instrument | Cross currency basis swaps
Derivative [Line Items]
Aggregate Notional Amount	289.9
Aggregate Notional Amount Maturing within 12 Months	0.0
Fair Value Hedging
Derivative [Line Items]
Aggregate Notional Amount	79.6
Aggregate Notional Amount Maturing within 12 Months	36.2
Fair Value Hedging | Foreign exchange forward contracts
Derivative [Line Items]
Aggregate Notional Amount	79.6
Aggregate Notional Amount Maturing within 12 Months	36.2
Switzerland, Francs | Net Investment Hedging | Designated as Hedging Instrument | Foreign exchange forward contracts
Derivative [Line Items]
Aggregate Notional Amount	342.4
Aggregate Notional Amount Maturing within 12 Months	342.4
Euro Member Countries, Euro | Net Investment Hedging | Designated as Hedging Instrument | Foreign exchange forward contracts
Derivative [Line Items]
Aggregate Notional Amount	363.2
Aggregate Notional Amount Maturing within 12 Months	$ 363.2