XML 117 R66.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2

Derivative Instruments (Realized and Unrealized Gains (Losses) on Derivatives) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Derivative [Line Items]
Gain (loss) on derivative instruments, net	$ (192.0)	$ 1,125.8	$ (1,052.8)
Cross-currency and interest rate derivative contracts
Derivative [Line Items]
Gain (loss) on derivative instruments, net	(207.3)	905.8	(1,145.6)
ITV Collar
Derivative [Line Items]
Gain (loss) on derivative instruments, net	(84.4)	176.7	215.0
Lionsgate Forward
Derivative [Line Items]
Gain (loss) on derivative instruments, net	13.0	30.1	(11.4)
Sumitomo Collar
Derivative [Line Items]
Gain (loss) on derivative instruments, net	0.0	(11.8)	(77.4)
Other
Derivative [Line Items]
Gain (loss) on derivative instruments, net	8.0	2.5	(3.9)
Total equity-related derivative instruments
Derivative [Line Items]
Gain (loss) on derivative instruments, net	(63.4)	197.5	122.3
Foreign currency forward and option contracts
Derivative [Line Items]
Gain (loss) on derivative instruments, net	77.4	22.7	(30.2)
Other
Derivative [Line Items]
Gain (loss) on derivative instruments, net	$ 1.3	$ (0.2)	$ 0.7

X

- Definition

Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4A
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5618551-113959

+ Details

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

X

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=us-gaap_CrossCurrencyInterestRateContractMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=lbtya_ITVCollarMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=lbtya_LionsgateForwardMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=lbtya_SumitomoCollarMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=lbtya_OtherEquityRelatedDerivativeInstrumentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=us-gaap_EquityContractMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=us-gaap_ForeignExchangeContractMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=us-gaap_OtherContractMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: