Exchange Value, Right to Receive Shares

No definition available.

Name:	lbtya_ExchangeValueRighttoReceiveShares
Namespace Prefix:	lbtya_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Expected actual performance earnings percentage for PSUs, as of the balance sheet date.

+ References

No definition available.

+ Details

Name:	lbtya_ExpectedPerformanceEarningsPercentageForPsus
Namespace Prefix:	lbtya_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Number of Ordinary Shares Rights for Each Performance Share

+ References

No definition available.

+ Details

Name:	lbtya_NumberofOrdinarySharesRightsforEachPerformanceShare
Namespace Prefix:	lbtya_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Peformance Plan Percentage Of Total Earned

+ References

No definition available.

+ Details

Name:	lbtya_PeformancePlanPercentageOfTotalEarned
Namespace Prefix:	lbtya_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Performance Plan Award Earned

+ References

No definition available.

+ Details

Name:	lbtya_PerformancePlanAwardEarned
Namespace Prefix:	lbtya_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Ratio of Annual PSU awards

+ References

No definition available.

+ Details

Name:	lbtya_RatioOfAnnualPsuAwards
Namespace Prefix:	lbtya_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Ratio of annual SAR awards

+ References

No definition available.

+ Details

Name:	lbtya_RatioOfAnnualSarAwards
Namespace Prefix:	lbtya_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Award Performance Period

+ References

No definition available.

+ Details

Name:	lbtya_SharebasedCompensationArrangementbySharebasedPaymentAwardAwardPerformancePeriod
Namespace Prefix:	lbtya_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage

+ References

No definition available.

+ Details

Name:	lbtya_SharebasedCompensationArrangementbySharebasedPaymentAwardAwardVestingRightsPercentage
Namespace Prefix:	lbtya_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	lbtya_SharebasedCompensationArrangementbySharebasedPaymentAwardExpirationPeriod
Namespace Prefix:	lbtya_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Number of Equal or Semi-Equal Installments

+ References

No definition available.

+ Details

Name:	lbtya_SharebasedCompensationArrangementbySharebasedPaymentAwardNumberofEqualorSemiEqualInstallments
Namespace Prefix:	lbtya_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

The minimums and maximums of a performance range, expressed as a financial ratio, affecting share -based compensation.

+ References

No definition available.

+ Details

Name:	lbtya_ShareBasedCompensationPerformanceRange
Namespace Prefix:	lbtya_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardRequisiteServicePeriod1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

-Subparagraph a

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (a)(3)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

Share-based Compensation (Narrative) (Details) (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended										12 Months Ended		1 Months Ended				12 Months Ended			12 Months Ended
	Dec. 31, 2013 Liberty Global Incentive Plan [Member]	Dec. 31, 2013 Liberty Global Incentive Plan [Member] Awards other than Performance-Based Awards [Member]	Dec. 31, 2013 Liberty Global Incentive Plan [Member] Six Month Anniversary After Grant Date [Member]	Dec. 31, 2013 Liberty Global Incentive Plan [Member] Each Quarter Thereafter after Six Month Vest [Member]	Dec. 31, 2013 VM Incentive Plan [Member]	Dec. 31, 2013 Liberty Global Director Incentive Plan [Member] installment	Jan. 31, 2014 Liberty Global 2014 Incentive Plans [Member] Subsequent Event [Member]	Jan. 31, 2014 Liberty Global 2014 Incentive Plans [Member] Subsequent Event [Member] Class B Ordinary Shares [Member]	Jan. 31, 2014 Liberty Global 2014 Nonemployee Director Incentive Plan [Member] Subsequent Event [Member]	Jan. 31, 2014 Previous Incentive Plans [Member] Subsequent Event [Member]	Dec. 31, 2008 Liberty Global Performance Plans [Member] SemiannualInstallments	Feb. 18, 2009 Liberty Global Performance Plans [Member]	Mar. 31, 2010 Liberty Global PSUs [Member]	Mar. 31, 2010 Liberty Global PSUs [Member] Minimum [Member]	Mar. 31, 2010 Liberty Global PSUs [Member] Maximum [Member]	Mar. 31, 2010 Liberty Global PSUs [Member] Series A and Series C Common Stock [Member]	Dec. 31, 2013 Liberty Global Challenge Performance Awards [Member]	Jun. 24, 2013 Liberty Global Challenge Performance Awards [Member] Class A Ordinary Shares [Member]	Jun. 24, 2013 Liberty Global Challenge Performance Awards [Member] Class C Ordinary Shares [Member]	Dec. 31, 2013 Liberty Global Challenge Performance Awards [Member] June 24th, 2016 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share authorized (in shares)	238,907				12,017,912	8,814,423	50,000,000	25,000,000	5,000,000	0
Award term	10 years	7 years			10 years	10 years					5 years						7 years
Service period					5 years						3 years
Vesting percentage			12.50%	6.25%									50.00%							100.00%
Performance period											2 years
Number of equal or semi-equal installments						3					6
Performance plan award earned												$ 316.5
Performance plan percentage of total earned												87.40%
Performance range														75.00%	125.00%
Expected performance earnings for PSUs														50.00%	150.00%
Exchange value, right to receive shares																1
Percentage of annual award of PSUs																66.66%
Percentage of annual of award of SARs																33.33%
Number of Ordinary Shares Rights for Each Performance Share																		1	1