Fair Value Measurements (Assets and Liabilities Reconciliation) (Schedule and Footnote) (Details) $ in Millions	3 Months Ended
Mar. 31, 2022 USD ($)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance of net assets at January 1, 2022	$ 1,512.9
Gains included in earnings from continuing operations
Realized and unrealized gains on derivative instruments, net	0.2
Realized and unrealized gains due to changes in fair values of certain investments, net	113.0
Additions	34.5
Dispositions	(5.0)
Transfers out of Level 3	13.3
Foreign currency translation adjustments and other, net	(17.0)
Balance of net assets at March 31, 2022	1,651.9
Investments
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance of net assets at January 1, 2022	1,412.4
Gains included in earnings from continuing operations
Realized and unrealized gains on derivative instruments, net	0.0
Realized and unrealized gains due to changes in fair values of certain investments, net	113.0
Additions	34.5
Dispositions	(5.0)
Transfers out of Level 3	0.0
Foreign currency translation adjustments and other, net	(17.1)
Balance of net assets at March 31, 2022	1,537.8
Cross-currency, interest rate and foreign currency derivative contracts
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance of net assets at January 1, 2022	(13.3)
Gains included in earnings from continuing operations
Realized and unrealized gains on derivative instruments, net	0.0
Realized and unrealized gains due to changes in fair values of certain investments, net	0.0
Additions	0.0
Dispositions	0.0
Transfers out of Level 3	13.3
Foreign currency translation adjustments and other, net	0.0
Balance of net assets at March 31, 2022	0.0
Equity-related derivative instruments
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance of net assets at January 1, 2022	113.8
Gains included in earnings from continuing operations
Realized and unrealized gains on derivative instruments, net	0.2
Realized and unrealized gains due to changes in fair values of certain investments, net	0.0
Additions	0.0
Dispositions	0.0
Transfers out of Level 3	0.0
Foreign currency translation adjustments and other, net	0.1
Balance of net assets at March 31, 2022	$ 114.1

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Amount of gain (loss) recognized in income from asset measured at fair value on recurring basis using unobservable input (level 3).

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Amount of issuances of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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Amount of gain (loss) recognized in income from derivative asset (liability) after deduction of derivative liability (asset), measured at fair value on recurring basis using unobservable input (level 3).

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