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INVESTMENTS (Tables)

6 Months Ended

Jun. 30, 2026

Investments, Debt and Equity Securities [Abstract]

Schedule of Investments in Debt Securities

Investments in debt securities at the end of each period were as follows (in millions):

			June 30, 2026																								December 31, 2025
Held-to-maturity			Amortized Cost						Gross Unrealized Gains						Gross Unrealized Losses						Fair Value						Amortized Cost						Gross Unrealized Gains						Gross Unrealized Losses			Fair Value
Bank time deposits			$	39.0					$	—					$	—					$	39.0					$	39.1					$	—					$	—					$	39.1
Available-for-sale
Commercial paper			$	460.7					$	—					$	—					$	460.7					$	452.3					$	—					$	—					$	452.3
U.S. government and agency securities			214.5						—						(0.4)						214.1						466.5						0.2						(0.4)						466.3
Asset-backed securities			39.4						—						(0.5)						38.9						35.6						—						(0.6)						35.0
Corporate debt securities			636.9						—						(0.6)						636.3						347.2						0.1						(0.4)						346.9
Total			$	1,351.5					$	—					$	(1.5)					$	1,350.0					$	1,301.6					$	0.3					$	(1.4)					$	1,300.5

Schedule of Cost and Fair Value of Investments in Debt Securities, by Contractual Maturity

The cost and fair value of investments in debt securities, by contractual maturity, as of June 30, 2026, were as follows (in millions):

			Held-to-Maturity												Available-for-Sale
			Amortized Cost						Fair Value						Amortized Cost						Fair Value
Due in 1 year or less			$	39.0					$	39.0					$	1,307.8					$	1,307.2
Instruments not due at a single maturity date (a)			—						—						43.7						42.8
			$	39.0					$	39.0					$	1,351.5					$	1,350.0

_______________________________________________________________________________

(a)     Consists of mortgage-backed and asset-backed securities.

Schedule of Gross Unrealized Losses and Fair Values for Investments in Unrealized Loss Position

The following tables present gross unrealized losses and fair values for those investments that were in an unrealized loss position as of June 30, 2026 and December 31, 2025, aggregated by investment category and the length of time that individual securities have been in a continuous loss position (in millions):

			June 30, 2026
			Less than 12 Months												12 Months or Greater												Total
			Fair Value						Gross Unrealized Losses						Fair Value						Gross Unrealized Losses						Fair Value						Gross Unrealized Losses
U.S. government and agency securities			$	241.9					$	(0.1)					$	8.0					$	(0.3)					$	249.9					$	(0.4)
Asset-backed securities			13.2						(0.1)						20.8						(0.4)						34.0						(0.5)
Corporate debt securities			586.6						(0.5)						15.3						(0.1)						601.9						(0.6)
			$	841.7					$	(0.7)					$	44.1					$	(0.8)					$	885.8					$	(1.5)

			December 31, 2025
			Less than 12 Months												12 Months or Greater												Total
			Fair Value						Gross Unrealized Losses						Fair Value						Gross Unrealized Losses						Fair Value						Gross Unrealized Losses
U.S. government and agency securities			$	—					$	—					$	11.2					$	(0.4)					$	11.2					$	(0.4)
Asset-backed securities			5.1						(0.1)						24.3						(0.5)						29.4						(0.6)
Corporate debt securities			76.7						(0.1)						34.3						(0.3)						111.0						(0.4)
			$	81.8					$	(0.2)					$	69.8					$	(1.2)					$	151.6					$	(1.4)

Schedule of Investments in Unconsolidated Affiliates

These investments are recorded in Long-term Investments on the condensed consolidated balance sheets, and are as follows (in millions):

			June 30, 2026						December 31, 2025
Equity method investments
Carrying value of equity method investments			$	36.9					$	34.7
Equity securities
Carrying value of marketable equity securities			28.8						7.1
Carrying value of non-marketable equity securities			135.6						185.5
Total investments in unconsolidated entities			$	201.3					$	227.3

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- Definition

Tabular disclosure of fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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Tabular disclosure of maturities of an entity's investments as well as any other information pertinent to the investments.

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