Debt and Credit Arrangements (Tables)

3 Months Ended

Mar. 31, 2022

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, 2022		December 31, 2021
4.200% Senior Notes due 2024 (less unamortized discount and issuance costs of $0.1 and $0.4, respectively)	4.240%	$	249.5	$	249.4
4.650% Senior Notes due 2028 (less unamortized discount and issuance costs of $1.2 and $2.9, respectively)	4.780%	495.9		495.8
4.750% Senior Notes due 2030 (less unamortized discount and issuance costs of $3.2 and $4.9, respectively)	4.920%	641.9		641.7
2.400% Senior Notes due 2031 (less unamortized discount and issuance costs of $0.7 and $4.2, respectively)	2.512%	495.1		495.0
3.375% Senior Notes due 2041 (less unamortized discount and issuance costs of $1.0 and $5.5, respectively)	3.448%	493.5		493.4
5.400% Senior Notes due 2048 (less unamortized discount and issuance costs of $2.7 and $4.9, respectively)	5.480%	492.4		492.3
Other notes payable and capitalized leases		40.4		41.7
Total long-term debt		2,908.7		2,909.3
Less: current portion		0.6		0.7
Long-term debt, excluding current portion		$	2,908.1	$	2,908.6