Debt and Financing (Tables)

12 Months Ended

Dec. 31, 2022

Debt Instruments [Abstract]

Schedule of Long-term Debt

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

				As of December 31,
	Maturity Date	Effective Interest Rates		2022		2021
Senior Notes ("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				(11.3)		(12.9)
Hedge accounting fair value adjustments(*)				(87.4)		(0.3)
Total				$	1,601.3	$	1,686.8

________________________________

(*)     Represents the fair value adjustments for interest rate swaps with an aggregate notional amount of $600.0 million. These interest rate swaps convert the fixed interest rates of certain Notes to floating interest rates and are designated as fair value hedges. See Note 5, Derivative Instruments, for a discussion of the Company's interest rate swaps.

Schedule of Maturities of Long-term Debt

As of December 31, 2022, the Company's aggregate debt maturities based on outstanding principal were as follows (in millions):

Years Ending December 31,	Amount
2023	$	—
2024	—
2025	400.0
2026	—
2027	—
Thereafter	1,300.0
Total	$	1,700.0