Long-Term Debt, U.S. Senior Notes (Details) - USD ($) $ in Millions					12 Months Ended
	Mar. 30, 2023	Nov. 01, 2021	Sep. 14, 2021	Aug. 16, 2021	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Debt
Repayments of long-term debt					$ 15.7	$ 10.3	$ 912.6
U.S. Senior Notes
Debt
Redemption price as a percentage of principal amount					100.00%
4.00% Senior Notes due February 2022
Debt
Stated interest rate (as a percent)		4.00%
Repayments of long-term debt		$ 295.0
3.125% Senior Notes due September 2021
Debt
Stated interest rate (as a percent)				3.125%
Repayments of long-term debt				$ 227.7
4.750% Senior Notes due March 2026
Debt
Redemption price as a percentage of principal amount	100.00%
Debt instrument, principal amount	$ 350.0
Stated interest rate (as a percent)	4.75%				4.75%
Debt instrument, face amount, net of discount (as a percent)	99.658%
Debt maturity date					Mar. 30, 2026
2.200% Senior Notes due September 2031
Debt
Redemption price as a percentage of principal amount			100.00%
Debt instrument, principal amount			$ 750.0
Stated interest rate (as a percent)			2.20%		2.20%	2.20%
Debt instrument, face amount, net of discount (as a percent)			99.634%
Debt maturity date					Sep. 15, 2031