v3.3.1.900

Debt and Capital Lease Obligations (UPC Broadband Details of Borrowings) (Footnotes) (Details) € in Millions, $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2014 EUR (€) | Dec. 31, 2014 USD ($)
UPC Broadband Holding Bank Facility [Member] |  |
Debt Instrument [Line Items] |  |
Unused borrowing capacity considering limitations | € 906.7 | $ 1,097.2
Unused borrowing capacity, considering limitations, after compliance reporting requirements | € 889.1 | $ 1,075.9
UPC Broadband Holding Bank Facility AI Debt [Member] |  |
Debt Instrument [Line Items] |  |
Fee on unused portion of credit facility | 1.30% |
UPC Broadband Holding Bank Facility AH Debt [Member] |  |
Debt Instrument [Line Items] |  |
LIBOR interest rate floor | 0.75% | 0.75%

X
- Definition Debt Instrument Unused Borrowing Capacity Amount Net Of Covenant Limitation + References No definition available. + Details
Name: | lbtya_DebtInstrumentUnusedBorrowingCapacityAmountNetOfCovenantLimitation
Namespace Prefix: | lbtya_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Debt Instrument Unused Borrowing Capacity Amount Net Of Covenant Limitation Considering Financing Transactions Subsequent To Year End + References No definition available. + Details
Name: | lbtya_DebtInstrumentUnusedBorrowingCapacityAmountNetOfCovenantLimitationConsideringFinancingTransactionsSubsequentToYearEnd
Namespace Prefix: | lbtya_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition LIBOR interest rate floor + References No definition available. + Details
Name: | lbtya_LiborInterestRateFloor
Namespace Prefix: | lbtya_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- 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
Name: | us-gaap_DebtInstrumentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility. + References No definition available. + Details
Name: | us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_DebtInstrumentAxis=lbtya_UpcBroadbandHoldingBankFacilityDebtMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=lbtya_UPCBroadbandHoldingBankFacilityAIDebtMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=lbtya_UpcBroadbandHoldingBankFacilityAhDebtMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |