Equity Method Investment, Co-Venturer Ownership Percentage

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Equity Method Investment, Continuing and Required Services Term

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Equity Method Investment, Transitional Services Term

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Other Assets, Related Parties, Current

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Payments of Value-Added Taxes, Joint Venture

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Percent of Interest Income Earned on Loan Included in Income (Loss) from Equity Method Investments

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Percent of Remaining Results of Operations Included in Income (Loss) from Equity Method Investments

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Percent of Share-based Compensation Included in Income (Loss) from Equity Method Investments

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Proceeds from Equalization Payment from Affiliate

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Proceeds from Joint Venture Debt Financing Arrangements

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Receivable with Imputed Interest, Net Amount, Receivable in Year One

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Receivable with Imputed Interest, Net Amount, Receivable in Year Three

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Receivable with Imputed Interest, Net Amount, Receivable in Year Two

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- Definition

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://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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-Name Accounting Standards Codification
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-Section 50
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The increase (decrease) during the reporting period in the amount due from borrowers for interest payments.

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

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Yield on the receivable, on which interest has been imputed, as calculated from its issuance value or purchase price. The calculated effective interest rate considers factors such as the issued face value or price paid for the receivable, the time period between payments, and the time until maturity [full receipt] of the receivable.

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The principal amount of the receivable or note before consideration of the discount or premium.

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Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Investments (Narrative) (Details) € in Millions				3 Months Ended				6 Months Ended
Investments (Narrative) (Details) € in Millions	Jan. 04, 2017 EUR (€)	Jan. 04, 2017 USD ($)	Dec. 31, 2016 USD ($)	Jun. 30, 2017 EUR (€)	Jun. 30, 2017 USD ($)	Mar. 31, 2017 USD ($)	Jun. 30, 2016 USD ($)	Jun. 30, 2017 USD ($)	Jun. 30, 2016 USD ($)	Jun. 30, 2017 USD ($)
Schedule of Investments [Line Items]
Distributions received from affiliates								$ 104,800,000	$ 1,300,000
Value-added taxes (VAT) paid on behalf of the VodafoneZiggo JV						$ 162,600,000		162,600,000	0
Distributions received from affiliates								1,569,400,000	0
Revenues					$ 4,584,600,000		$ 5,074,100,000	9,014,500,000	$ 9,662,100,000
Related-party — VodafoneZiggo JV (note 4)			$ 21,000,000.0							$ 67,400,000
VodafoneZiggo JV [Member]
Schedule of Investments [Line Items]
Percent of share-based compensation included in investment				100.00%						100.00%
Percent of remaining results of operations included in investment				50.00%						50.00%
Percent of interest income earned on loan included in investment				100.00%						100.00%
Ownership percentage			50.00%
Co-venturer ownership percentage			50.00%
Distributions received from affiliates	€ 2,200.0	$ 2,400,000,000
Distributions received from affiliates								87,300,000
Transitional services term			12 months
Revenues					31,800,000			$ 63,300,000
VodafoneZiggo JV [Member] \| Minimum [Member]
Schedule of Investments [Line Items]
Continuing and required services term			4 years
VodafoneZiggo JV [Member] \| Maximum [Member]
Schedule of Investments [Line Items]
Continuing and required services term			6 years
VodafoneZiggo JV Loan [Member] \| VodafoneZiggo JV [Member]
Schedule of Investments [Line Items]
Due from related party			$ 1,054,700,000							$ 1,141,300,000
Receivable interest rate								5.55%
Receivable in year one				€ 100.0						114,100,000
Receivable in year two				100.0						114,100,000
Receivable in year three				100.0						$ 114,100,000
Accrued interests settled in cash					15,800,000			$ 30,600,000
Vodafone [Member]
Schedule of Investments [Line Items]
Proceeds from financing arrangements	2,800.0	2,900,000,000
Proceeds from equalization payment from affiliate	€ 802.9	$ 840,800,000		€ 3.9	$ 4,500,000