DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES (Effects of Interest Rate Swap on Other Comprehensive Income) (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Derivative Instruments, Gain (Loss)
Long-term debt, less current portion	$ 4,054.7	$ 4,054.7	$ 5,038.8
Foreign Currency Contract, Asset, Fair Value Disclosure	$ 109.0	109.0	45.7
Three month LIBOR	1.0706%
Senior notes due 2020 [Member]
Derivative Instruments, Gain (Loss)
Long-term debt, less current portion	$ 500.0	500.0	500.0
Senior notes due 2031
Derivative Instruments, Gain (Loss)
Subordinated Borrowing, Interest Rate	2.70%
Interest Rate Swap [Member]
Derivative Instruments, Gain (Loss)
Fair Value Hedge Liabilities	$ 69.6	69.6	79.7
Currency Swap [Member]
Derivative Instruments, Gain (Loss)
Fair Value Hedge Liabilities	$ 109.0	109.0	45.7
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Other Comprehensive Income (Loss)		(63.3)	(12.9)	$ 7.6
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net		$ 0.0	$ 0.9	$ 0.0