Equity Method Investments in Affiliates - Change in Equity Method Investments in Affiliates (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Change in Equity Method Investments in Affiliates [Roll Forward]
Balance, beginning of period	$ 2,246.6
Distributions of earnings	(467.8)	$ (403.9)	$ (490.8)
Return of capital	(9.8)	(0.7)	(0.2)
Balance, end of period	2,870.4	2,246.6
Equity Method Investee
Change in Equity Method Investments in Affiliates [Roll Forward]
Balance, beginning of period	2,246.6	2,288.5
Investments in Affiliates	857.6	14.3
Affiliate transactions	(187.5)	0.0
Earnings, net of tax	561.0	442.7
Intangible amortization and impairments	(98.1)	(130.0)
Distributions of earnings	(465.9)	(402.7)
Return of capital	(9.8)	(0.7)
Foreign currency translation	19.9	34.5
Other	(53.4)	0.0
Balance, end of period	2,870.4	2,246.6	2,288.5
Equity method investment, undistributed earnings	280.4	$ 206.1	$ 168.0
Equity method investment, transfer of interests	$ 53.4