Additional basis points on discount rate used to calculate redemption premium on debt instrument.

No definition available.

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- Definition

Debt Instrument, Redemption Price, Percentage in Event that Certain Assets Sold or Specific Control Changed

+ References

No definition available.

+ Details

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- Definition

Senior Notes Redemption Prices In Year Five

+ References

No definition available.

+ Details

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- Definition

Senior Notes Redemption Prices In Year Seven

+ References

No definition available.

+ Details

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Namespace Prefix:	lbtya_
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- Definition

Senior Notes Redemption Prices In Year Six

+ References

No definition available.

+ Details

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Namespace Prefix:	lbtya_
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- Definition

Senior Notes Redemption Prices Year Eight and Thereafter

+ 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 SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 20

-Article 5

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

Reference 3: 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 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 16

-Article 9

+ Details

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Period Type:	instant

- Definition

Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 10

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=28364263&loc=d3e13433-108611

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 12

-URI http://asc.fasb.org/extlink&oid=28364263&loc=d3e13476-108611

+ Details

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- Definition

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

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

Reference 2: 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(a)(1))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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- Details

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- Definition

Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 16

-Article 7

Reference 2: 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 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.16)

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 16

-Article 9

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 20, 22

-Article 5

Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-03.16)

-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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Debt and Capital Lease Obligations (Ziggo Notes) (Details)	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)	Dec. 31, 2014 Ziggo Notes [Member] USD ($)	Dec. 31, 2013 Ziggo Notes [Member] USD ($)	Dec. 31, 2014 Ziggo 2020 Euro Senior Secured Notes [Member] USD ($)	Dec. 31, 2014 Ziggo 2020 Euro Senior Secured Notes [Member] EUR (€)	Dec. 31, 2014 Ziggo 2024 Euro Senior Notes [Member] USD ($)	Dec. 31, 2014 Ziggo 2024 Euro Senior Notes [Member] EUR (€)
Debt Instrument [Line Items]
Stated interest rate of debt					3.625%	3.625%	7.125%	7.125%
Principal amount outstanding	$ 44,612,200,000us-gaap_DebtInstrumentCarryingAmount		$ 986,000,000		$ 86,800,000	€ 71,700,000.0	$ 899,200,000	€ 743,100,000.0
Debt Instrument, Fair Value Disclosure	46,151,100,000us-gaap_DebtInstrumentFairValue	44,229,000,000us-gaap_DebtInstrumentFairValue	1,082,300,000	0	88,700,000		993,600,000
Long-term Debt	$ 44,611,400,000us-gaap_LongTermDebt	$ 42,856,000,000us-gaap_LongTermDebt	$ 1,077,000,000	$ 0	$ 89,300,000		$ 987,700,000
2019							103.563%	103.563%
2020							102.375%	102.375%
2021							101.188%	101.188%
2022 and thereafter							100.00%	100.00%
Additional basis points used to determine redemption premium					0.50%	0.50%
Mandatory redemption percentage in event that certain assets sold or specific control changed							101.00%	101.00%