Debt (Details) - USD ($)		1 Months Ended	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2024	Mar. 31, 2024	Dec. 31, 2023
Debt
Line of credit (current)		$ 400,000,000.0	$ 400,000,000.0	$ 400,000,000.0
2022 Credit Agreement
Debt
Term of maturity date extension		1 year
Proceeds from issuance of long-term debt	$ 800,000,000
Outstanding balance, long-term		$ 600,000,000	600,000,000	$ 700,000,000
Repayments of long term debt			100,000,000
Line of credit (current)		$ 400,000,000	$ 400,000,000
First Unsecured Revolving Credit Facility
Debt
Borrowing capacity	1,200,000,000
Second Unsecured Revolving Credit Facility
Debt
Borrowing capacity	800,000,000
Increase in borrowing capacity	$ 500,000,000