Debt and Credit Arrangements (Tables)

3 Months Ended

Mar. 31, 2023

Debt Disclosure [Abstract]

Summary of Carrying Amounts and Fair Values of Long-term Debt

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

	Effective Interest Rate	March 31, 2023		December 31, 2022
4.200% Senior Notes due 2024 (less unamortized discount and issuance costs of $0.1 and $0.2, respectively)	4.240%	$	249.7	$	249.7
4.650% Senior Notes due 2028 (less unamortized discount and issuance costs of $1.0 and $2.5, respectively)	4.780%	496.5		496.4
4.750% Senior Notes due 2030 (less unamortized discount and issuance costs of $2.8 and $4.3, respectively)	4.920%	642.9		642.6
2.400% Senior Notes due 2031 (less unamortized discount and issuance costs of $0.7 and $3.7, respectively)	2.512%	495.6		495.5
3.375% Senior Notes due 2041 (less unamortized discount and issuance costs of $1.0 and $5.2, respectively)	3.448%	493.8		493.7
5.400% Senior Notes due 2048 (less unamortized discount and issuance costs of $2.6 and $4.8, respectively)	5.480%	492.6		492.6
Other notes payable and capitalized leases		1.0		0.8
Total long-term debt		2,872.1		2,871.3
Less: current portion		0.6		0.6
Long-term debt, excluding current portion		$	2,871.5	$	2,870.7