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Fair Value Measurements (Assets and Liabilities Reconciliation) (Schedule and Footnote) (Details) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2024 USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
Fair Value Recurring Basis Unobservable Input Reconciliation Net Derivative Asset Liability Gain Loss Statement Of Income Extensible List Not Disclosed Flag | true
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |
Balance of net assets at January 1, 2024 | $ 1,826.4
Gains (losses) included in net loss earnings |
Realized and unrealized losses on derivative instruments, net | (43.5)
Realized and unrealized gains due to changes in fair values of certain investments, net | 3.4
Additions | 30.2
Foreign currency translation adjustments and other, net | (30.8)
Balance of net assets at March 31, 2024 | $ 1,785.7
Fair Value, Net Derivative Asset (Liability), Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] | Realized and unrealized gains (losses) on derivative instruments, net (note 5)
Investments |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |
Balance of net assets at January 1, 2024 | $ 1,563.1
Gains (losses) included in net loss earnings |
Realized and unrealized losses on derivative instruments, net | 0.0
Realized and unrealized gains due to changes in fair values of certain investments, net | 3.4
Additions | 30.2
Foreign currency translation adjustments and other, net | (24.8)
Balance of net assets at March 31, 2024 | 1,571.9
Equity-related derivative instruments |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |
Balance of net assets at January 1, 2024 | 263.3
Gains (losses) included in net loss earnings |
Realized and unrealized losses on derivative instruments, net | (43.5)
Realized and unrealized gains due to changes in fair values of certain investments, net | 0.0
Additions | 0.0
Foreign currency translation adjustments and other, net | (6.0)
Balance of net assets at March 31, 2024 | 213.8
Instruments accounted for under measurement alternative |
Gains (losses) included in net loss earnings |
Balance of net assets at March 31, 2024 | $ 369.4

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