Long-Term Debt (Tables)

9 Months Ended

Sep. 30, 2023

Debt Disclosure [Abstract]

Schedule of Long-Term Debt

Long-term debt at September 30, 2023 and December 31, 2022 consisted of the following:

(in millions)	September 30, 2023			December 31, 2022
Current portion of long-term debt:
Current portion of 5-year term loan facility expires 2026	$	25.0		$	15.6
Current portion of 5-year term loan facility expires 2023		—			210.0
Current portion of 5-year term loan facility expires 2027		37.5			25.0
Current portion of 4.200% senior notes, semi-annual interest payments, balloon due 2024		500.0			—
Total current portion of long-term debt		562.5			250.6
Long-term debt:
Note agreements:
4.200% senior notes, semi-annual interest payments, net of the unamortized discount,    balloon due 2024	$	—		$	499.7
4.500% senior notes, semi-annual interest payments, net of the unamortized discount,    balloon due 2029		349.7			349.7
2.375% senior notes, semi-annual interest payments, net of the unamortized discount,    balloon due 2031		699.5			699.4
4.200% senior notes, semi-annual interest payments, net of the unamortized discount,    balloon due 2032		598.1			598.0
4.950% senior notes, semi-annual interest payments, net of the unamortized discount,    balloon due 2052		592.2			592.0
Total notes		2,239.5			2,738.8
Credit agreements:
5-year term loan facility, periodic interest and principal payments, SOFR plus up to    1.750%, expires October 27, 2026		200.0			218.8
5-year revolving loan facility, periodic interest payments, SOFR plus up to 1.525%, plus commitment fees up to 0.225%, expires October 27, 2026		—			—
3-year term loan facility, periodic interest payments, SOFR plus up to 1.625%, expires March 31, 2025		300.0			300.0
5-year term loan facility, periodic interest and principal payments, SOFR plus up to 1.750%, expires March 31, 2027		425.0			456.2
Total credit agreements		925.0			975.0
Debt issuance costs (contra)		(19.9	)		(22.3	)
Total long-term debt less unamortized discount and debt issuance costs		3,144.6			3,691.5
Current portion of long-term debt		562.5			250.6
Total debt	$	3,707.1		$	3,942.1