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Equity Method Investments in Affiliates - Change in Equity Method Investments in Affiliates (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Change in Equity Method Investments in Affiliates [Roll Forward]
Balance, beginning of period	$ 2,195.6
Distributions of earnings	(236.8)	$ (252.4)	$ (466.3)
Balance, end of period	2,074.8	2,195.6
Equity Method Investee
Change in Equity Method Investments in Affiliates [Roll Forward]
Balance, beginning of period	2,195.6	2,791.0
Earnings	288.6	289.4
Intangible amortization and impairments	(332.0)	(627.4)
Distributions of earnings	(236.8)	(252.4)
Foreign currency translation	5.1	(40.0)
Investments in Affiliates	128.7	162.3
Divestments of Affiliates	0.0	(117.7)
Other	25.6	(9.6)
Balance, end of period	$ 2,074.8	$ 2,195.6	$ 2,791.0

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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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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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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 purchase of or advances to an equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.

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