v3.10.0.1

Derivative Instruments (Cross-currency Derivative Contracts) (Details) - 12 months ended Dec. 31, 2018 € in Millions, $ in Millions | EUR (€) | USD ($)
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Virgin Media | Cross-Currency Swap 1 |  |
Derivative [Line Items] |  |
Weighted average remaining life | 4 years |
Virgin Media | Cross-Currency Swap 2 |  |
Derivative [Line Items] |  |
Weighted average remaining life | 4 years 10 months 24 days |
Virgin Media | Cross-Currency Swap 3 |  |
Derivative [Line Items] |  |
Weighted average remaining life | 6 years 1 month 6 days |
UPC Holding | Cross-Currency Swap 4 |  |
Derivative [Line Items] |  |
Weighted average remaining life | 5 years 7 months 6 days |
UPC Holding | Cross-Currency Swap 5 |  |
Derivative [Line Items] |  |
Weighted average remaining life | 6 years 2 months 12 days |
UPC Holding | Cross-Currency Swap 6 |  |
Derivative [Line Items] |  |
Weighted average remaining life | 5 years 9 months 18 days |
UPC Holding | Cross-Currency Swap 7 |  |
Derivative [Line Items] |  |
Weighted average remaining life | 1 year 8 months 12 days |
UPC Holding | Cross-Currency Swap 8 |  |
Derivative [Line Items] |  |
Weighted average remaining life | 3 years |
UPC Holding | Cross-Currency Swap 9 |  |
Derivative [Line Items] |  |
Weighted average remaining life | 2 years 9 months 18 days |
UPC Holding | Cross-Currency Swap 10 |  |
Derivative [Line Items] |  |
Weighted average remaining life | 3 years 1 month 6 days |
Telenet | Cross-Currency Swap 11 |  |
Derivative [Line Items] |  |
Weighted average remaining life | 6 years 6 months |
Telenet | Cross-Currency Swap 12 |  |
Derivative [Line Items] |  |
Weighted average remaining life | 6 years 4 months 24 days |
Due From Counterparty | Virgin Media | Cross-Currency Swap 1 |  |
Derivative [Line Items] |  |
Notional amount of derivative |  | $ 400.0
Due From Counterparty | Virgin Media | Cross-Currency Swap 2 |  |
Derivative [Line Items] |  |
Notional amount of derivative |  | 7,182.9
Due From Counterparty | Virgin Media | Cross-Currency Swap 3 |  |
Derivative [Line Items] |  |
Notional amount of derivative |  | 2,365.8
Due From Counterparty | UPC Holding | Cross-Currency Swap 4 |  |
Derivative [Line Items] |  |
Notional amount of derivative |  | 2,420.0
Due From Counterparty | UPC Holding | Cross-Currency Swap 5 |  |
Derivative [Line Items] |  |
Notional amount of derivative |  | 1,200.0
Due From Counterparty | UPC Holding | Cross-Currency Swap 6 |  |
Derivative [Line Items] |  |
Notional amount of derivative |  | 2,057.0
Due From Counterparty | UPC Holding | Cross-Currency Swap 7 |  |
Derivative [Line Items] |  |
Notional amount of derivative |  | 299.2
Due From Counterparty | UPC Holding | Cross-Currency Swap 8 |  |
Derivative [Line Items] |  |
Notional amount of derivative |  | 375.5
Due From Counterparty | UPC Holding | Cross-Currency Swap 9 |  |
Derivative [Line Items] |  |
Notional amount of derivative |  | 822.9
Due From Counterparty | UPC Holding | Cross-Currency Swap 10 |  |
Derivative [Line Items] |  |
Notional amount of derivative |  | 217.2
Due From Counterparty | Telenet | Cross-Currency Swap 11 |  |
Derivative [Line Items] |  |
Notional amount of derivative |  | 3,670.0
Due From Counterparty | Telenet | Cross-Currency Swap 12 |  |
Derivative [Line Items] |  |
Notional amount of derivative | € | € 1,431.2 |
Due To Counterparty | Virgin Media | Cross-Currency Swap 1 |  |
Derivative [Line Items] |  |
Notional amount of derivative |  | 339.6
Due To Counterparty | Virgin Media | Cross-Currency Swap 2 |  |
Derivative [Line Items] |  |
Notional amount of derivative |  | 4,759.3
Due To Counterparty | Virgin Media | Cross-Currency Swap 3 |  |
Derivative [Line Items] |  |
Notional amount of derivative |  | 3,400.0
Due To Counterparty | UPC Holding | Cross-Currency Swap 4 |  |
Derivative [Line Items] |  |
Notional amount of derivative |  | 1,999.4
Due To Counterparty | UPC Holding | Cross-Currency Swap 5 |  |
Derivative [Line Items] |  |
Notional amount of derivative |  | 1,107.5
Due To Counterparty | UPC Holding | Cross-Currency Swap 6 |  |
Derivative [Line Items] |  |
Notional amount of derivative |  | 2,347.9
Due To Counterparty | UPC Holding | Cross-Currency Swap 7 |  |
Derivative [Line Items] |  |
Notional amount of derivative |  | 8,221.8
Due To Counterparty | UPC Holding | Cross-Currency Swap 8 |  |
Derivative [Line Items] |  |
Notional amount of derivative |  | 105,911.9
Due To Counterparty | UPC Holding | Cross-Currency Swap 9 |  |
Derivative [Line Items] |  |
Notional amount of derivative |  | 3,484.5
Due To Counterparty | UPC Holding | Cross-Currency Swap 10 |  |
Derivative [Line Items] |  |
Notional amount of derivative |  | 610.0
Due To Counterparty | Telenet | Cross-Currency Swap 11 |  |
Derivative [Line Items] |  |
Notional amount of derivative |  | 3,243.6
Due To Counterparty | Telenet | Cross-Currency Swap 12 |  |
Derivative [Line Items] |  |
Notional amount of derivative |  | $ 1,600.0

X
- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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- Definition Average remaining period until maturity of the derivative contract, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition 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. + References No definition available. + Details
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