v3.3.1.900

Segment Reporting (Revenue by Geographic Segments) (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Segment Reporting Information [Line Items]
Revenue	$ 4,615.2	$ 4,497.2	$ 4,602.2	$ 4,533.7	$ 4,468.0	$ 4,276.5	$ 3,057.8	$ 2,671.9	$ 18,248.3	$ 14,474.2	$ 9,930.8
Other, including intersegment eliminations [Member]
Segment Reporting Information [Line Items]
Revenue									45.9	41.8	45.7
European Operations Division U.K. [Member]
Segment Reporting Information [Line Items]
Revenue									6,941.1	3,653.7	0.0
European Operations Division Germany [Member]
Segment Reporting Information [Line Items]
Revenue									2,711.5	2,559.2	2,311.0
European Operations Division Belgium [Member]
Segment Reporting Information [Line Items]
Revenue									2,279.4	2,185.9	1,918.0
European Operations Division Switzerland [Member]
Segment Reporting Information [Line Items]
Revenue									1,414.4	1,332.1	1,259.8
European Operations Division The Netherlands [Member]
Segment Reporting Information [Line Items]
Revenue									1,498.5	1,242.4	1,229.1
European Operations Division Ireland [Member]
Segment Reporting Information [Line Items]
Revenue									468.8	463.7	426.4
European Operations Division Poland [Member]
Segment Reporting Information [Line Items]
Revenue									469.9	460.4	450.0
European Operations Division Austria [Member]
Segment Reporting Information [Line Items]
Revenue									431.7	435.0	422.0
European Operations Division Hungary [Member]
Segment Reporting Information [Line Items]
Revenue									310.2	313.8	298.9
European Operations Division Czech Republic [Member]
Segment Reporting Information [Line Items]
Revenue									221.0	248.9	253.4
European Operations Division Romania [Member]
Segment Reporting Information [Line Items]
Revenue									173.3	163.8	149.4
European Operations Division Slovakia [Member]
Segment Reporting Information [Line Items]
Revenue									74.5	74.6	70.5
European Operations Division Other Europe [Member]
Segment Reporting Information [Line Items]
Revenue									3.5	10.1	10.5
Total European Operations Division [Member]
Segment Reporting Information [Line Items]
Revenue									16,997.8	13,143.6	8,799.0
LiLAC Division Chile [Member]
Segment Reporting Information [Line Items]
Revenue									898.5	991.6	940.6
LiLAC Division Puerto Rico [Member]
Segment Reporting Information [Line Items]
Revenue									306.1	297.2	145.5
LiLAC Division [Member]
Segment Reporting Information [Line Items]
Revenue									$ 1,204.6	$ 1,288.8	$ 1,086.1

X

- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

+ Details

Name:	us-gaap_Revenues
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

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

X

- Details

Name:	us-gaap_ConsolidationItemsAxis=us-gaap_GeographyEliminationsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=lbtya_EuropeanOperationsDivisionUnitedKingdomMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=lbtya_EuropeanOperationsDivisionGermanyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=lbtya_EuropeanOperationsDivisionBelgiumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=lbtya_EuropeanOperationsDivisionSwitzerlandMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=lbtya_EuropeanOperationsDivisionNetherlandsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=lbtya_EuropeanOperationsDivisionIrelandMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=lbtya_EuropeanOperationsDivisionPolandMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=lbtya_EuropeanOperationsDivisionAustriaMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=lbtya_EuropeanOperationsDivisionHungaryMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=lbtya_EuropeanOperationsDivisionCzechRepublicMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=lbtya_EuropeanOperationsDivisionRomaniaMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=lbtya_EuropeanOperationsDivisionSlovakiaMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=lbtya_EuropeanOperationsDivisionOtherEuropeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=lbtya_TotalEuropeanOperationsDivisionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=lbtya_LiLACDivisionChileMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=lbtya_LiLACDivisionPuertoRicoMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=lbtya_LiLACDivisionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: