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Fair Value Financial Instruments (Details) - USD ($) $ in Millions	Sep. 30, 2025	Dec. 31, 2024
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Equity securities and investments in nonconsolidated companies	$ 1,940.8	$ 1,533.4
Term Loan
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-Term Debt, Current Maturities	570.0	570.0
Carrying Amount [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	153.3	272.8
Receivables, net	1,060.4	1,113.3
Equity securities and investments in nonconsolidated companies	1,894.5	1,486.8
Accounts payable	1,215.0	1,156.5
Structured accounts payable arrangements	402.5	402.3
Short-term debt	1,153.7	847.1
Long-term debt, including current portion	3,414.6	3,377.6
Fair Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	153.3	272.8
Receivables, net	1,060.4	1,113.3
Equity securities and investments in nonconsolidated companies	1,894.5	1,486.8
Accounts payable	1,215.0	1,156.5
Structured accounts payable arrangements	402.5	402.3
Short-term debt	1,153.7	847.1
Long-term debt, including current portion	$ 3,437.5	$ 3,324.1

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