v3.10.0.1

Investments (Narrative) (Details) $ / shares in Units, € in Millions |  |  | 3 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Dec. 31, 2016 | Nov. 12, 2015 USD ($) $ / shares shares | Dec. 31, 2018 USD ($) | Sep. 30, 2018 USD ($) | Jun. 30, 2018 USD ($) | Mar. 31, 2018 USD ($) | Dec. 31, 2017 USD ($) shares | Sep. 30, 2017 USD ($) | Jun. 30, 2017 USD ($) | Mar. 31, 2017 USD ($) | Dec. 31, 2018 USD ($) | Dec. 31, 2017 USD ($) shares | Dec. 31, 2016 USD ($) | Dec. 31, 2018 EUR (€) shares | Dec. 31, 2018 USD ($) shares | Oct. 31, 2018 | Jan. 04, 2017
Schedule of Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Value-added taxes (VAT) paid on behalf of the VodafoneZiggo JV |  |  |  |  |  |  |  |  |  |  | $ 0 | $ 162,600,000 | $ 0 |  |  |  |
Distributions received from affiliates |  |  |  |  |  |  |  |  |  |  | 0 | 1,569,400,000 | 0 |  |  |  |
Revenue |  |  | $ 2,949,100,000 | $ 2,929,700,000 | $ 3,015,600,000 | $ 3,063,500,000 | $ 2,987,800,000 | $ 2,899,300,000 | $ 2,746,800,000 | $ 2,642,500,000 | $ 11,957,900,000 | $ 11,276,400,000 | 13,731,100,000 |  |  |  |
VodafoneZiggo JV |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percent of interest income earned |  |  |  |  |  |  |  |  |  |  |  |  |  | 100.00% | 100.00% |  |
Percent of share-based compensation included |  |  |  |  |  |  |  |  |  |  |  |  |  | 100.00% | 100.00% |  |
Ownership percentage |  |  |  |  |  |  | 50.00% |  |  |  |  | 50.00% |  | 50.00% | 50.00% |  | 50.00%
Co-venturer ownership percentage |  |  |  |  |  |  |  |  |  |  |  |  |  | 50.00% | 50.00% |  |
Term to distribute all unrestricted cash |  |  |  |  |  |  |  |  |  |  | 2 months |  |  |  |  |  |
Value-added taxes (VAT) paid on behalf of the VodafoneZiggo JV |  |  |  |  |  |  |  |  |  | $ 162,600,000 |  |  |  |  |  |  |
Distributions received from affiliates |  |  |  |  |  |  |  |  |  |  | $ 232,500,000 | $ 252,800,000 |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  |  |  |  |  | $ 0 |  |  |  |
VodafoneZiggo JV | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Leverage ratio |  |  |  |  |  |  |  |  |  |  |  |  |  | 4.5 | 4.5 |  |
Continuing and required services term | 4 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
VodafoneZiggo JV | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Leverage ratio |  |  |  |  |  |  |  |  |  |  |  |  |  | 5.0 | 5.0 |  |
VodafoneZiggo JV | Equity Method Investee |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments to Acquire Equity Method Investments |  |  |  |  |  |  |  |  |  |  | $ 13,100,000 | 144,700,000 |  |  |  |  |
Due from related parties |  |  |  |  |  |  | $ 33,300,000 |  |  |  |  | 33,300,000 |  |  | $ 24,400,000 |  |
VodafoneZiggo JV | VodafoneZiggo JV Loan |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related party note receivable |  |  |  |  |  |  | $ 1,081,900,000 |  |  |  |  | 1,081,900,000 |  |  | 916,100,000 |  |
Related party note receivable rate |  |  |  |  |  |  |  |  |  |  | 5.55% |  |  |  |  |  |
Related party note receivable in year one |  |  |  |  |  |  |  |  |  |  |  |  |  | € 100.0 | 114,500,000 |  |
Related party note receivable in year two |  |  |  |  |  |  |  |  |  |  |  |  |  | 100.0 | 114,500,000 |  |
Related party note receivable in year three |  |  |  |  |  |  |  |  |  |  |  |  |  | € 100.0 | $ 114,500,000 |  |
Interest accrued on receivable |  |  |  |  |  |  |  |  |  |  | $ 59,600,000 |  |  |  |  |  |
All3Media |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership percentage |  |  |  |  |  |  |  |  |  |  |  |  |  | 50.00% | 50.00% |  |
JV Services |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  |  |  | $ 189,100,000 | $ 132,400,000 |  |  |  |  |
ITV |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of common stock shares owned (in shares) | shares |  |  |  |  |  |  | 398,515,510 |  |  |  |  | 398,515,510 |  | 398,515,510 | 398,515,510 |  |
Percent of investment owned (less than 5% for Sumitomo and Lionsgate) |  |  |  |  | 10.00% |  |  |  |  |  |  |  |  |  |  |  |
Sumitomo Corporation (Sumitomo) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of common stock shares owned (in shares) | shares |  |  |  |  |  |  | 45,652,175 |  |  |  |  | 45,652,175 |  |  |  |  |
Percent of investment owned (less than 5% for Sumitomo and Lionsgate) |  |  |  |  |  |  | 5.00% |  |  |  |  | 5.00% |  |  |  |  |
ITI Neovision S.A. (ITI Neovision) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percent of investment owned (less than 5% for Sumitomo and Lionsgate) |  |  |  |  |  |  | 17.00% |  |  |  |  | 17.00% |  | 17.00% | 17.00% |  |
Lions Gate Entertainment Corp (Lionsgate) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percent of investment owned (less than 5% for Sumitomo and Lionsgate) |  |  |  |  |  |  |  |  |  |  |  |  |  | 5.00% | 5.00% |  |
Share price (in dollars per share) | $ / shares |  | $ 39.02 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investment owned |  | $ 195,100,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Lions Gate Entertainment Corp (Lionsgate) | Lionsgate Forward |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of common stock shares owned (in shares) | shares |  | 1,250,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from derivative instrument |  | $ 70,900,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Lions Gate Entertainment Corp (Lionsgate) | Common Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of common stock shares owned (in shares) | shares |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,500,000 | 2,500,000 |  |
Lions Gate Entertainment Corp (Lionsgate) | Nonvoting Common Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of common stock shares owned (in shares) | shares |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,500,000 | 2,500,000 |  |
Casa Systems, Inc. (Casa) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of common stock shares owned (in shares) | shares |  |  |  |  |  |  | 4,432,870 |  |  |  |  | 4,432,870 |  | 3,005,307 | 3,005,307 |  |
Percent of investment owned (less than 5% for Sumitomo and Lionsgate) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5.50% |

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