Debt (Tables)

3 Months Ended

Mar. 31, 2025

Debt Disclosure [Abstract]

Schedule of Total Debt

The following table summarizes the Company's total debt (in millions, except percentages):

				As of
	Maturity Date	Effective Interest Rates		March 31, 2025		December 31, 2024
Senior Notes:
1.200% fixed-rate notes	December 2025	1.37	%	$	400.0	$	400.0
3.750% fixed-rate notes	August 2029	3.86	%	500.0		500.0
2.000% fixed-rate notes	December 2030	2.12	%	400.0		400.0
5.950% fixed-rate notes	March 2041	6.03	%	400.0		400.0
Total Notes				1,700.0		1,700.0
Unaccreted discount and debt issuance costs				(7.4)		(7.9)
Hedge accounting fair value adjustments(*)				(64.1)		(77.0)
Total				$	1,628.5	$	1,615.1

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(*)     Represents the fair value adjustments for interest rate swap contracts with an aggregate notional amount of $600.0 million. These contracts convert the fixed interest rates of certain Notes to floating interest rates and are designated as fair value hedges. See Note 4, Derivative Instruments, for a discussion of the Company's interest rate swap contracts.