Fair Value Disclosure Fair Value Disclosure - Amounts Recorded on Balance Sheet Related to Cumulative Basis Adjustments (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest Expense, Operating and Nonoperating	$ (341.0)	$ (263.4)	$ (214.0)
Other Nonoperating Income (Expense)	(9.5)	(9.4)	(27.0)
Cash Flow Hedging [Member] | Interest Rate Contract [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest Expense, Operating and Nonoperating	1.6	1.6	1.7
Cash Flow Hedging [Member] | Foreign Exchange Contract [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other Nonoperating Income (Expense)	3.7	(3.7)	$ 5.7
Recourse Debt [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of the Hedged Assets/(Liabilities)	(4.0)	(8.0)
Carrying Amount of the Hedged Assets/(Liabilities)	$ (198.9)	$ (196.8)