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DEBT - SENIOR NOTES (Details) - USD ($) $ in Millions	12 Months Ended
DEBT - SENIOR NOTES (Details) - USD ($) $ in Millions	Dec. 31, 2021	May 26, 2021	Dec. 31, 2020	Dec. 19, 2014	Mar. 31, 2013	Nov. 19, 2010
Debt Instrument [Line Items]
Debt, Current	$ (1.5)		$ (376.7)
Total Short and Long Term Debt Issuance Costs	41.0
Credit Facility, Maximum Swing Line Borrowings				$ 100.0
Long-term debt, less current portion	$ 5,416.5		5,419.0
Debt Instrument, Basis Spread on Variable Rate	2.298%
2.70% senior notes due 2031	$ 500.0		0.0
Intangible assets, net	3,735.5		3,961.1
1.55% senior notes due 2026	500.0		0.0
2021 Senior Notes		$ 1,000.0
Interest Rate Swap [Member]
Debt Instrument [Line Items]
2.70% senior notes due 2031	502.9
In Process Research and Development
Debt Instrument [Line Items]
Intangible assets, net	9.1		0.0
Cross currency swap maturing 2025 [Member]
Debt Instrument [Line Items]
Derivative, Notional Amount	300.0
Cross currency swap maturing 2022 [Member]
Debt Instrument [Line Items]
Derivative, Notional Amount	$ 300.0
Senior notes due 2020 [Member]
Debt Instrument [Line Items]
Interest rate (in hundredths)	4.625%					4.625%
Senior notes due 2020 [Member]
Debt Instrument [Line Items]
4.625SeniorNotesDue2020RedeemedValue	$ 187.9
Long-term debt, less current portion	500.0		0.0		$ 600.0
Senior notes due 2027 [Member]
Debt Instrument [Line Items]
Long-term debt, less current portion	$ 600.0		600.0
Senior notes due February 2022
Debt Instrument [Line Items]
Interest rate (in hundredths)						3.20%
Senior notes due August 2022
Debt Instrument [Line Items]
Interest rate (in hundredths)						3.75%
Senior notes due 2026
Debt Instrument [Line Items]
Interest rate (in hundredths)	1.55%
Senior notes due 2031
Debt Instrument [Line Items]
Interest rate (in hundredths)	2.70%
Cross currency swap maturing 2022 [Member]
Debt Instrument [Line Items]
Fair Value Hedge Assets	$ 20.6		26.0
Cross currency swap maturing 2025 [Member]
Debt Instrument [Line Items]
Fair Value Hedge Assets	$ 12.2		$ 14.4