FAIR VALUE MEASUREMENTS - Financial Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	$ 21.4	$ 12.2
Derivative liabilities	563.4	16.1
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets		12.2
Fair Value, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market fund	11.6	9.4
Equity security		3.2
Deferred compensation plan investments	18.7	19.0
Derivative assets	21.4	12.2
Derivative liabilities	10.4	16.1
Non-derivative hedging instrument	553.0
Contingent consideration liability	220.4	268.7
Fair Value, Recurring \| Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market fund	11.6	9.4
Equity security		3.2
Deferred compensation plan investments	18.7	19.0
Derivative assets	0.0	0.0
Derivative liabilities	0.0	0.0
Non-derivative hedging instrument	0.0
Contingent consideration liability	0.0	0.0
Fair Value, Recurring \| Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market fund	0.0	0.0
Equity security		0.0
Deferred compensation plan investments	0.0	0.0
Derivative assets	21.4
Derivative liabilities	10.4	16.1
Non-derivative hedging instrument	553.0
Contingent consideration liability	0.0	0.0
Fair Value, Recurring \| Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market fund	0.0	0.0
Equity security		0.0
Deferred compensation plan investments	0.0	0.0
Derivative assets	0.0	0.0
Derivative liabilities	0.0	0.0
Non-derivative hedging instrument	0.0
Contingent consideration liability	$ 220.4	$ 268.7

Deferred Compensation Plan Investments, Fair Value

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Amount of liability recognized arising from contingent consideration in a business combination, expected to be settled beyond one year or the normal operating cycle, if longer.

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Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

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Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

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- Definition

Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI), classified as current.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Investment in short-term money-market instruments (such as commercial paper, banker's acceptances, repurchase agreements, government securities, certificates of deposit, and so forth) which are highly liquid (that is, readily convertible to known amounts of cash) and so near their maturity that they present an insignificant risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify as cash equivalents by definition. Original maturity means an original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three-years ago does not become a cash equivalent when its remaining maturity is three months.

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Net fair value of all derivative instruments not designated as a hedging instrument.

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