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Equity Method Investments in Affiliates - Change in Equity Method Investments (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Change in Equity Method Investments in Affiliates [Roll Forward]
Balance, as of December 31, 2018	$ 2,791.0
Distributions of earnings	(96.5)	$ (225.7)
Investments in Affiliates	34.1	$ 0.0
Balance, as of March 31, 2019	2,318.5
Equity Method Investee
Change in Equity Method Investments in Affiliates [Roll Forward]
Balance, as of December 31, 2018	2,791.0
Earnings	80.1
Intangible amortization and impairments	(438.2)
Distributions of earnings	(96.5)
Foreign currency translation	(16.9)
Investments in Affiliates	34.1
Divestments of Affiliates	(28.8)
Other	(6.3)
Balance, as of March 31, 2019	$ 2,318.5

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Income (Loss) from Equity Method Investments Before Amortization of Intangibles

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Amount of distribution received from equity method investee for return on investment, classified as operating activities. Excludes distribution for return of investment, classified as investing activities.

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-Topic 230
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Amount of the entity's equity method investment which has been sold.

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Amount of investment in equity method investee and investment in and advance to affiliate.

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The cash outflow associated with the acquisition of or advances to an entity that is related to it but not strictly controlled (for example, an unconsolidated subsidiary, affiliate, and joint venture or equity method investment) or the acquisition of an additional interest in a subsidiary (controlled entity).

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