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Equity Method Investments in Affiliates - Change in Equity Method Investments (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Change in Equity Method Investments in Affiliates [Roll Forward]
Balance, as of December 31, 2018	$ 2,791.0
Distributions of earnings	(155.9)	$ (327.8)
Investments in Affiliates	59.8	$ 7.3
Balance, as of June 30, 2019	2,330.2
Equity Method Investee
Change in Equity Method Investments in Affiliates [Roll Forward]
Balance, as of December 31, 2018	2,791.0
Earnings	148.3
Intangible amortization and impairments	(477.1)
Distributions of earnings	(155.9)
Investments in Affiliates	59.8
Divestments of Affiliates	(28.8)
Other	(7.1)
Balance, as of June 30, 2019	$ 2,330.2

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Equity Method Investment, Intangible Asset Amortization and Impairments

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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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-Publisher FASB
-Name Accounting Standards Codification
-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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