Debt and Credit Arrangements - Schedule of Debt (Details) - USD ($) $ in Millions	Sep. 30, 2025	Dec. 31, 2024
Debt Instrument [Line Items]
Total long-term debt	$ 2,923.1	$ 2,920.6
Less: current portion	0.1	0.1
Long-term debt, excluding current portion	$ 2,923.0	2,920.5
4.650% Senior Notes due 2028 (less unamortized discount and issuance costs of $0.6 and $1.3, respectively)
Debt Instrument [Line Items]
Interest rate, stated percentage	4.65%
Unamortized discount	$ 0.6
Unamortized issuance costs	$ 1.3
Effective Interest Rate	4.78%
Total long-term debt	$ 498.1	497.6
4.750% Senior Notes due 2030 (less unamortized discount and issuance costs of $1.9 and $2.8, respectively)
Debt Instrument [Line Items]
Interest rate, stated percentage	4.75%
Unamortized discount	$ 1.9
Unamortized issuance costs	$ 2.8
Effective Interest Rate	4.92%
Total long-term debt	$ 645.3	644.6
2.400% Senior Notes due 2031 (less unamortized discount and issuance costs of $0.5 and $2.5, respectively)
Debt Instrument [Line Items]
Interest rate, stated percentage	2.40%
Unamortized discount	$ 0.5
Unamortized issuance costs	$ 2.5
Effective Interest Rate	2.512%
Total long-term debt	$ 497.0	496.6
5.375% Senior Notes due 2033 (less unamortized discount and issuance costs of $3.1 and $2.5, respectively)
Debt Instrument [Line Items]
Interest rate, stated percentage	5.375%
Unamortized discount	$ 3.1
Unamortized issuance costs	$ 2.5
Effective Interest Rate	5.65%
Total long-term debt	$ 294.5	294.0
3.375% Senior Notes due 2041 (less unamortized discount and issuance costs of $0.9 and $4.5, respectively)
Debt Instrument [Line Items]
Interest rate, stated percentage	3.375%
Unamortized discount	$ 0.9
Unamortized issuance costs	$ 4.5
Effective Interest Rate	3.448%
Total long-term debt	$ 494.6	494.4
5.400% Senior Notes due 2048 (less unamortized discount and issuance costs of $2.5 and $4.3, respectively)
Debt Instrument [Line Items]
Interest rate, stated percentage	5.40%
Unamortized discount	$ 2.5
Unamortized issuance costs	$ 4.3
Effective Interest Rate	5.48%
Total long-term debt	$ 493.2	493.1
Other notes payable and finance leases
Debt Instrument [Line Items]
Total long-term debt	$ 0.4	$ 0.3