DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Derivative Instruments, Gain (Loss) [Line Items]
Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge	$ (8.8)		$ 11.1
Long-term Debt, Excluding Current Maturities	$ 5,416.6		5,416.6		$ 5,789.8
Debt Instrument, Basis Spread on Variable Rate	2.298%
Foreign Currency Contract, Asset, Fair Value Disclosure					3.2
Foreign Currency Contracts, Liability, Fair Value Disclosure	$ 14.3		14.3
Fair Value Hedge Liabilities	(2.3)		(2.3)		(1.5)
Senior notes due 2020 [Member]
Derivative Instruments, Gain (Loss) [Line Items]
4.625% Senior notes due 2020	302.3		302.3		301.5
Interest Rate Swap [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Other Comprehensive Income (Loss)	(0.9)	$ 4.3	0.9	$ 6.8
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	0.0	0.0	0.0	0.0
Fair Value Hedge Assets	2.3		2.3		1.5
Fair Value Hedge Liabilities	0.0		0.0		0.0
Currency Swap [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Other Comprehensive Income (Loss)	(8.8)	(7.8)	11.1	4.0
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	0.0	$ 0.0	0.0	$ 0.0
Fair Value Hedge Assets	14.3		14.3		3.2
Fair Value Hedge Liabilities	0.0		0.0		0.0
Senior notes due 2022 [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Long-term Debt, Excluding Current Maturities	500.0		500.0		500.0
Cross currency swap maturing 2022 [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Notional Amount	300.0		300.0
Senior notes due 2025 [Member] [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Notional Amount	$ 300.0		$ 300.0
Senior notes due 2020 [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	4.625%		4.625%
Senior Long Term Notes Due2020 Member
Derivative Instruments, Gain (Loss) [Line Items]
Long-term Debt, Excluding Current Maturities	$ 300.0		$ 300.0		300.0
Senior notes due 2025 [Member] [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Long-term Debt, Excluding Current Maturities	1,000.0		1,000.0		1,000.0
Senior notes due 2027 [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Long-term Debt, Excluding Current Maturities	600.0		600.0		600.0
Fair Value, Inputs, Level 2 [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Foreign Currency Contract, Asset, Fair Value Disclosure					$ 3.2
Foreign Currency Contracts, Liability, Fair Value Disclosure	$ 14.3		$ 14.3