Debt Instrument, Principal Amount Exchanged

No definition available.

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- Definition

Debt Instrument, Principal Amount Redeemed, Special Optional Redemptions

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

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- Definition

Amount of long-term debt before deduction of unamortized discount or premium. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, with initial maturities beyond one year or the normal operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 20
-Article 5

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 03
-Paragraph 16
-Article 9

+ Details

Name:	us-gaap_DebtInstrumentCarryingAmount
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- 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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- Details

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- Details

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- Details

Name:	us-gaap_DebtInstrumentAxis=lbtya_KbwEuroSeniorSecuredNotesMember
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- Details

Name:	us-gaap_DebtInstrumentAxis=lbtya_KbwDollarSeniorSecuredNotesMember
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- Details

Name:	us-gaap_DebtInstrumentAxis=lbtya_KbwSeniorSecuredFloatingRateNotesMember
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- Details

Name:	us-gaap_DebtInstrumentAxis=lbtya_UmSeniorSecuredFloatingRateExchangeNotesMember
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Debt and Capital Lease Obligations (Unitymedia KabelBW Exchange and Special Optional Redemptions) (Schedule and Footnotes) (Details) € in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2014 EUR (€)	Dec. 31, 2014 USD ($)	May. 04, 2012 USD ($)	Apr. 30, 2012
Debt Instrument [Line Items]
Principal amount outstanding		$ 44,612.2
KBW Notes [Member]
Debt Instrument [Line Items]
Principal amount outstanding			$ 2,986.7
Principal amount exchanged pursuant to the Unitymedia KabelBW Exchange			2,748.4
Principal amount redeemed pursuant to the Special Optional Redemptions			238.3
KBW Senior Notes [Member]
Debt Instrument [Line Items]
Principal amount outstanding	€ 680.0		890.0
Principal amount exchanged pursuant to the Unitymedia KabelBW Exchange	618.0		808.8
Principal amount redeemed pursuant to the Special Optional Redemptions	62.0		81.2
Stated interest rate of debt				9.50%
KBW Euro Senior Secured Notes [Member]
Debt Instrument [Line Items]
Principal amount outstanding	800.0		1,047.0
Principal amount exchanged pursuant to the Unitymedia KabelBW Exchange	735.1		962.1
Principal amount redeemed pursuant to the Special Optional Redemptions	64.9		84.9
Stated interest rate of debt				7.50%
KBW Dollar Senior Secured Notes [Member]
Debt Instrument [Line Items]
Principal amount outstanding		500.0	500.0
Principal amount exchanged pursuant to the Unitymedia KabelBW Exchange		459.3	459.3
Principal amount redeemed pursuant to the Special Optional Redemptions		$ 40.7	40.7
Stated interest rate of debt				7.50%
KBW Senior Secured Floating Rate Notes [Member]
Debt Instrument [Line Items]
Principal amount outstanding	420.0		549.7
Principal amount exchanged pursuant to the Unitymedia KabelBW Exchange	395.9		518.2
Principal amount redeemed pursuant to the Special Optional Redemptions	€ 24.1		$ 31.5
UM Senior Secured Floating Rate Exchange Notes [Member]
Debt Instrument [Line Items]
Description of variable rate basis	EURIBOR
Basis spread on variable rate	4.25%