Debt Instrument, Floor Interest Rate

No definition available.

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- Definition

Debt Instrument, Unused Borrowing Capacity Amount, Compliance Requirements Completed

+ 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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Balance Type:	na
Period Type:	duration

- 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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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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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

Reference 1: 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 2: 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

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 20, 22

-Article 5

+ Details

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

- Definition

Amount of increase (decrease) of the credit facility.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(f))

-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

+ Details

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

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ 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 210.5-02.19(b),22(b))

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

+ Details

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

- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ 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 210.5-02.19(b),22(b))

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

+ Details

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

- Definition

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

+ References

No definition available.

+ Details

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Balance Type:	na
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

Name:	us-gaap_DebtInstrumentAxis=lbtya_DollarSeniorProceedsLoanMember
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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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Debt and Capital Lease Obligations (Ziggo Credit Facilities) (Details) $ in Millions			6 Months Ended
	Jul. 28, 2015 EUR (€)	Jul. 28, 2015 USD ($)	Jun. 30, 2015 EUR (€)	Jun. 30, 2015 USD ($)
Ziggo USD Facility [Member]
Debt Instrument [Line Items]
Facility amount				$ 2,350.0
Unused borrowing capacity				0.0
Carrying value				$ 2,317.5
Ziggo USD Facility [Member] \| London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Basis spread on variable rate			2.75%
Floor rate			0.75%	0.75%
Ziggo Euro Facility [Member]
Debt Instrument [Line Items]
Facility amount \| €			€ 2,000,000,000
Unused borrowing capacity				$ 0.0
Carrying value				$ 2,209.5
Ziggo Euro Facility [Member] \| EURIBOR [Member]
Debt Instrument [Line Items]
Basis spread on variable rate			3.00%
Floor rate			0.75%	0.75%
Senior Secured Proceeds Loan [Member]
Debt Instrument [Line Items]
Facility amount \| €			€ 800,000,000
Unused borrowing capacity				$ 0.0
Carrying value				$ 892.2
Interest rate			3.75%	3.75%
Euro Senior Proceeds Loan [Member]
Debt Instrument [Line Items]
Facility amount \| €			€ 400,000,000
Unused borrowing capacity				$ 0.0
Carrying value				$ 446.1
Interest rate			4.625%	4.625%
Dollar Senior Proceeds Loan [Member]
Debt Instrument [Line Items]
Facility amount				$ 400.0
Unused borrowing capacity				0.0
Carrying value				$ 400.0
Interest rate			5.875%	5.875%
New Ziggo Credit Facility [Member]
Debt Instrument [Line Items]
Facility amount \| €			€ 689,200,000
Unused borrowing capacity				$ 0.0
Carrying value				768.6
New Ziggo Credit Facility [Member] \| EURIBOR [Member]
Debt Instrument [Line Items]
Basis spread on variable rate			3.75%
Ziggo Revolving Facilities [Member]
Debt Instrument [Line Items]
Facility amount \| €			€ 650,000,000
Unused borrowing capacity				501.9
Carrying value				223.1
Elimination of the Proceeds Loans in consolidation [Member]
Debt Instrument [Line Items]
Unused borrowing capacity				0.0
Carrying value				(1,738.3)
Ziggo Credit Facility [Member]
Debt Instrument [Line Items]
Unused borrowing capacity				501.9
Carrying value				5,518.7
Unused borrowing capacity, compliance requirements met			409,000,000	456.2
Ziggo Revolving Facility One [Member]
Debt Instrument [Line Items]
Facility amount			€ 600,000,000	669.2
Fee on unused portion of credit facility			1.10%
Ziggo Revolving Facility One [Member] \| EURIBOR [Member]
Debt Instrument [Line Items]
Basis spread on variable rate			2.75%
Ziggo Revolving Facility Two [Member]
Debt Instrument [Line Items]
Facility amount			€ 50,000,000	$ 55.8
Fee on unused portion of credit facility			0.80%
Ziggo Revolving Facility Two [Member] \| EURIBOR [Member]
Debt Instrument [Line Items]
Basis spread on variable rate			2.00%
Subsequent Event [Member] \| Ziggo Credit Facility [Member]
Debt Instrument [Line Items]
Commitment increase (decrease)	€ 150,000,000	$ 167.3