Debt and Credit Agreements Schedule of Long-term Debt Instruments (Tables)

12 Months Ended

Dec. 31, 2021

Debt Disclosure [Abstract]

Schedule of Long-term Debt Instruments [Table Text Block]

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

	Effective Interest Rate		December 31,
			2021 1		2020 1
3.750% Senior Notes due 2021	3.980	%	—		499.1
4.000% Senior Notes due 2022	4.130	%	—		249.3
3.750% Senior Notes due 2023	4.320	%	—		498.8
4.200% Senior Notes due 2024 (less unamortized discount and issuance costs of $0.1 and $0.5, respectively)	4.240	%	249.4		498.3
4.650% Senior Notes due 2028 (less unamortized discount and issuance costs of $1.2 and $3.0, respectively)	4.780	%	495.8		495.2
4.750% Senior Notes due 2030 (less unamortized discount and issuance costs of $3.2 and $5.1, respectively)	4.920	%	641.7		640.8
2.400% Senior Notes due 2031 (less unamortized discount and issuance costs of $0.7 and $4.3, respectively)	2.512	%	495.0		—
3.375% Senior Notes due 2041 (less unamortized discount and issuance costs of $1.1 and $5.5, respectively)	3.448	%	493.4		—
5.400% Senior Notes due 2048 (less unamortized discount and issuance costs of $2.7 and $5.0, respectively)	5.480	%	492.3		492.1
Other notes payable and capitalized leases			41.7		44.7
Total long-term debt			2,909.3		3,418.3
Less: current portion			0.7		502.5
Long-term debt, excluding current portion			$	2,908.6	$	2,915.8

1See Note 13 for information on the fair value measurement of our long-term debt.