Debt Instrument, Floor Interest Rate

No definition available.

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Namespace Prefix:	lbtya_
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Balance Type:	na
Period Type:	instant

- Definition

Debt Instrument, Issued at Par Percentage

+ References

No definition available.

+ Details

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

- Definition

Payments For Debt Redemption Premium

+ References

No definition available.

+ Details

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Namespace Prefix:	lbtya_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- 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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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=64930739&loc=d3e28878-108400

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

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

+ 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(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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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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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 50
-Section 40
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=49170532&loc=d3e12317-112629

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 50
-Section 40
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=49170532&loc=d3e12355-112629

+ Details

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

- Definition

Write-off of amounts previously capitalized as debt issuance cost in an extinguishment of debt.

+ 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 210.5-03.8)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

Name:	us-gaap_DebtInstrumentAxis=lbtya_UMSeniorSecuredNotesRedeemedMember
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Debt and Capital Lease Obligations (Telenet Refinancing Transaction) (Details)	1 Months Ended
	May 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	May 31, 2016 EUR (€)	May 31, 2016 USD ($)
Telenet Financing USD LLC [Member] \| Term Loan Facility [Member] \| Telenet Facility AD [Member]
Debt Instrument [Line Items]
Principal amount of debt				$ 850,000,000
Issued at par percentage			99.50%	99.50%
Basis spread on variable rate	3.50%
Floor rate			0.75%	0.75%
Long-term Debt [Member] \| Telenet Credit Facility P [Member]
Debt Instrument [Line Items]
Principal amount of debt			€ 400,000,000	$ 442,900,000
Long-term Debt [Member] \| Telenet Credit Facility O [Member]
Debt Instrument [Line Items]
Principal amount of debt			€ 300,000,000	$ 332,200,000
Long-term Debt [Member] \| 6.625 Telenet Senior Secured Notes [Member]
Debt Instrument [Line Items]
Interest rate			6.625%	6.625%
Long-term Debt [Member] \| UM Senior Secured Notes Redeemed [Member]
Debt Instrument [Line Items]
Loss on debt modification and extinguishment	$ 18,900,000	$ 4,300,000
Payments for debt redemption premium	11,100,000	3,400,000
Write-off of deferred financing costs	$ 7,800,000	$ 900,000