ACQUISITIONS AND DISPOSITIONS - Acquisition Summary (Details) € in Millions, $ in Millions		3 Months Ended			9 Months Ended		12 Months Ended
	May 11, 2020 USD ($)	Sep. 30, 2019 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2018 EUR (€)	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)	Dec. 31, 2019 USD ($)
Business Acquisition [Line Items]
Goodwill					$ 5,958.0		$ 5,569.1
Accounts receivable	$ 30.3
Property, plant and equipment	7.4
Inventory	16.3
Deferred tax liabilities	63.8
Current liabilities	$ 29.4
Weighted average useful lives of identifiable intangible assets acquired						12 years
Net tangible assets (liabilities) acquired and equity method investments		$ 8.0				$ (1.4)
Business Acquisition, Purchase Price Allocation, Amortizable Customer Relationships		37.0				108.9
Business Acquisition, Purchase Price Allocation, Amortizable Trademarks		3.0				23.4
Business Acquisition, Purchase Price Allocation, Amortizable Other Intangibles		3.0				48.9
Business Acquisition, Purchase Price Allocation, Amortizable Intangible Assets Excluding Goodwill		43.0				181.2
Business Acquisition, Purchase Price Allocation, Goodwill		49.0				229.5
Business Acquisition, Aggregate Purchase Price Allocation		100.0				409.3
Business Combination Acquisition Related Liabilities and Contingent Consideration		2.2				22.7
Net cash paid for acquisitions, including acquisition-related liabilities and contingent consideration		$ 97.8				386.6
Prior year business combinations, goodwill adjustments					0.3
Prior year business combinations, net intangible assets adjustments					1.3
Payments for Acquisition Related Liabilities and Contingent Consideration Financing Activities					$ 3.5	$ 1.5
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life						12 years
Customer relationships
Business Acquisition [Line Items]
Weighted average useful lives of identifiable intangible assets acquired	14 years
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	14 years
Other technology
Business Acquisition [Line Items]
Weighted average useful lives of identifiable intangible assets acquired	16 years
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	16 years
Trademarks
Business Acquisition [Line Items]
Weighted average useful lives of identifiable intangible assets acquired	14 years
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	14 years
Bioquell
Business Acquisition [Line Items]
Portion of purchase price transferred to an escrow fund			$ 179.3	€ 140.5
Lobster Ink
Business Acquisition [Line Items]
Earn-out term						3 years
CID Lines
Business Acquisition [Line Items]
Total consideration	$ 506.9
Annualized pre-acquisition sales							$ 110.0
Tangible assets	54.2
Total assets acquired	308.0
Goodwill	270.7
Total liabilities	93.2
Net consideration transferred to sellers	485.5
CID Lines | Customer relationships
Business Acquisition [Line Items]
Identifiable intangible assets	147.5
CID Lines | Trademarks
Business Acquisition [Line Items]
Identifiable intangible assets	58.6
CID Lines | Acquired Technologies And Product Registrations
Business Acquisition [Line Items]
Identifiable intangible assets	$ 47.7