XML 60 R49.htm IDEA: XBRL DOCUMENT
v3.19.1

Derivative Instruments (Realized and Unrealized Gains (Losses) on Derivatives) (Schedule and Footnotes) (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2019 | Mar. 31, 2018
Derivative [Line Items] |  |
Gain (loss) on derivative instruments, net | $ (82.8) | $ (211.3)
Cross-currency and interest rate derivative contracts |  |
Derivative [Line Items] |  |
Gain (loss) on derivative instruments, net | (87.3) | (361.9)
Equity-related derivative instruments: |  |
Derivative [Line Items] |  |
Gain (loss) on derivative instruments, net | 14.8 | 145.2
ITV Collar |  |
Derivative [Line Items] |  |
Gain (loss) on derivative instruments, net | 13.8 | 123.6
Lionsgate Forward |  |
Derivative [Line Items] |  |
Gain (loss) on derivative instruments, net | 0.8 | 9.0
Sumitomo Collar |  |
Derivative [Line Items] |  |
Gain (loss) on derivative instruments, net | 0.0 | 11.4
Other |  |
Derivative [Line Items] |  |
Gain (loss) on derivative instruments, net | 0.2 | 1.2
Foreign currency forward and option contracts |  |
Derivative [Line Items] |  |
Gain (loss) on derivative instruments, net | (10.6) | 5.6
Other |  |
Derivative [Line Items] |  |
Gain (loss) on derivative instruments, net | $ 0.3 | $ (0.2)

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=us-gaap_EquityContractMember
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_ForeignExchangeForwardMember
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: |