Investments in Affiliated Companies (Investments and Distributions) (Details 3) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Schedule of Equity Method Investments [Line Items]
Asset Impairment Charges	$ 0.0	$ 1.5	$ 48.9
Proceeds from Equity Method Investment, Distribution	50.0	25.0	46.3
Rail North America [Member]
Schedule of Equity Method Investments [Line Items]
Asset Impairment Charges		0.0	0.0
Rail International [Member]
Schedule of Equity Method Investments [Line Items]
Asset Impairment Charges	0.0	0.3	14.6
Portfolio Management [Member]
Schedule of Equity Method Investments [Line Items]
Asset Impairment Charges	0.0	1.2	34.3
Proceeds from Equity Method Investment, Distribution	$ 50.0	$ 25.0	$ 46.3