Debt and Credit Arrangements (Tables)

6 Months Ended

Jun. 30, 2025

Debt Disclosure [Abstract]

Schedule of Debt

A summary of the carrying amounts of our long-term debt is listed below.

	Effective Interest Rate	June 30, 2025		December 31, 2024
4.650% Senior Notes due 2028 (less unamortized discount and issuance costs of $0.6 and $1.5, respectively)	4.780%	$	497.9	$	497.6
4.750% Senior Notes due 2030 (less unamortized discount and issuance costs of $2.0 and $2.9, respectively)	4.920%	645.1		644.6
2.400% Senior Notes due 2031 (less unamortized discount and issuance costs of $0.5 and $2.6, respectively)	2.512%	496.9		496.6
5.375% Senior Notes due 2033 (less unamortized discount and issuance costs of $3.1 and $2.5, respectively)	5.650%	294.3		294.0
3.375% Senior Notes due 2041 (less unamortized discount and issuance costs of $0.9 and $4.5, respectively)	3.448%	494.6		494.4
5.400% Senior Notes due 2048 (less unamortized discount and issuance costs of $2.5 and $4.3, respectively)	5.480%	493.2		493.1
Other notes payable and finance leases		0.2		0.3
Total long-term debt		2,922.2		2,920.6
Less: current portion		0.1		0.1
Long-term debt, excluding current portion		$	2,922.1	$	2,920.5