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The amount of goodwill arising from a business combination that is expected to be deductible for tax purposes.

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Amount of liability recognized arising from contingent consideration in a business combination.

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Amount of assets acquired at the acquisition date.

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Amount of liabilities due within one year or within the normal operating cycle, if longer, assumed at the acquisition date.

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Amount of intangible assets, excluding goodwill, acquired at the acquisition date.

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Amount of liabilities assumed at the acquisition date.

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Amount recognized as of the acquisition date for the identifiable assets acquired in excess of (less than) the aggregate liabilities assumed.

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Amount recognized for assets, including goodwill, in excess of (less than) the aggregate liabilities assumed.

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Amount of gain (loss) from sale and disposal of integrated set of activities and assets capable of being conducted and managed for purpose of providing return in form of dividend, lower cost, or other economic benefit to investor, owner, member and participant.

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The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

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The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.

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The cash outflow associated with the purchase of or advances to an equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.

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BUSINESS ACQUISITIONS AND DISPOSITIONS (Details) € in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2025 USD ($) Rate	Mar. 31, 2025 EUR (€)	Mar. 31, 2024 USD ($)
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets	$ (77.5)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities	(24.0)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net	53.5
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	(41.1)
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net	53.5
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities	24.0
Gain (Loss) on Disposition of Business	(4.9)
Payments to Acquire Equity Method Investments	157.0		$ 13.7
Proceeds from sale of business	0.0		13.5
Business Acquisition, Goodwill, Expected Tax Deductible Amount	36.4
Payments to Acquire Businesses, Net of Cash Acquired	$ 53.5		$ 259.2
SYNLAB
Business Acquisition [Line Items]
Subsidiary, Ownership Percentage, Noncontrolling Owner \| Rate	15.00%
Measurement Period Adjustments
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets	$ 0.0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities	0.0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net	0.0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	(7.4)
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net	0.0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities	0.0
Business Acquisition, Goodwill, Expected Tax Deductible Amount	(7.4)
SYNLAB \| United States of America, Dollars
Business Acquisition [Line Items]
Payments to Acquire Equity Method Investments	151.6
SYNLAB \| Euro Member Countries, Euro
Business Acquisition [Line Items]
Payments to Acquire Equity Method Investments \| €		€ 140.4
Total business acquisitions and adjustments
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets	(77.5)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities	(24.0)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net	53.5
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	(48.5)
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net	53.5
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities	24.0
Business Acquisition, Goodwill, Expected Tax Deductible Amount	29.0
BioReference Health (Oncology Focused)
Business Acquisition [Line Items]
Payments to Acquire Businesses, Net of Cash Acquired	225.0
Payment Due at Closing	192.5
Business Combination, Contingent Consideration, Liability	$ 32.5
Noncompete Agreements [Member]
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	5 years	5 years
Customer Lists
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	15 years	15 years