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REVENUES (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
REVENUES (Details) - USD ($) $ in Millions	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024	Dec. 31, 2024
Revenue from Contract with Customer [Abstract]
Deferred Revenue, Revenue Recognized	$ 34.4	$ 26.8	$ 103.3	$ 77.8
Financing Receivable, Allowance for Credit Loss [Line Items]
Accounts receivable, net	2,120.6		2,120.6		$ 1,944.1
Contract with Customer, Asset, before Allowance for Credit Loss	162.0		162.0		160.5
Allowance for Credit Loss, Receivable, Other, Current	(5.9)		(5.9)		(7.6)
Contract with Customer, Asset, after Allowance for Credit Loss, Current	156.1		156.1		152.9
Accounts Receivable, Allowance for Credit Loss	40.1		40.1		44.7
Allowance for Credit Loss, Write Off			(11.2)
Unbilled Services, Foreign Currency Translation Impact			0.4
Unbilled Services, Allowance for Credit Loss	5.9		5.9		7.6
Allowance for Credit Loss, Foreign Currency Translation Impact			2.4
Allowance for Credit Loss	46.0		46.0		52.3
Accounts Receivable, Credit Loss Expense (Reversal)			2.5
Accounts Receivable, Credit Loss Expense (Reversal)			2.0
Diagnostics
Financing Receivable, Allowance for Credit Loss [Line Items]
Accounts Receivable, before Allowance for Credit Loss	1,410.6		1,410.6		1,259.3
Biopharma Laboratory Services
Financing Receivable, Allowance for Credit Loss [Line Items]
Accounts Receivable, before Allowance for Credit Loss	$ 750.1		750.1		$ 729.5
Accounts Receivable [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for Credit Loss, Write Off			(9.1)
Accounts Receivable, Credit Loss Expense (Reversal)			2.5
Unbilled Contracts Receivable [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for Credit Loss, Write Off			(2.1)
Accounts Receivable, Credit Loss Expense (Reversal)			$ 0.0