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(Plume) Plume Design, Inc. (Plume) [Member] Plume Design, Inc. 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Central Index Key Entity Central Index Key Segment Reporting, Measurement Disclosures [Abstract] Segment Reporting, Measurement Disclosures [Abstract] Other Other Debt [Member] Other Debt [Member] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Interest Rate Cap Interest Rate Cap [Member] Basis of Presentation [Table] Basis of Presentation [Table] Basis of Presentation [Table] The Netherlands Tax and Customs Administration, Netherlands [Member] Total lease expense Lease, Cost Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] Equity (note 14): Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Reductions for tax positions of prior years Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions Debt Instrument [Roll Forward] Debt Instrument [Roll Forward] Debt Instrument Customer relationships Customer Relationships [Member] Long-term operating lease liabilities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Operating Lease Liability Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Operating Lease Liability Stock Options, SARs, RSAs and RSUs Stock Options, SARs, RSAs and RSUs [Member] Stock Options, SARs, RSAs and RSUs [Member] Loss Contingencies [Line Items] Loss Contingencies [Line Items] Long-term debt and finance lease obligations Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt Other long-term liabilities (notes 4, 8, 13 and 16) Other long-term liabilities Other long-term liabilities Other Liabilities, Noncurrent Condensed Financial Information Disclosure [Abstract] Condensed Financial Information Disclosure [Abstract] Operating Activities [Axis] Operating Activities [Axis] Projected benefit obligation Defined Benefit Plan, Benefit Obligation EdgeConneX EdgeConneX Inc. [Member] EdgeConneX Inc. Continuing operations Net Cash Provided by (Used in) Continuing Operations VM Ireland Credit Facility VM Ireland Credit Facility [Member] VM Ireland Credit Facility Summary Of Vendor Financing Obligations Schedule of Long-term Debt Instruments [Table Text Block] Debt Instrument [Line Items] Debt Instrument [Line Items] Trading Symbol Trading Symbol Other Other Equity Related Derivative Instrument [Member] Other Equity Related Derivative Instrument [Member] Adjusted EBITDA Adjusted Earnings Before Interest, Taxes, Depreciation, And Amortization Adjusted Earnings Before Interest, Taxes, Depreciation, And Amortization Total Derivative instruments: Derivative Asset Belgium Administration of the Treasury, Belgium [Member] Revenue (in millions) Business Acquisition, Pro Forma Revenue Related Party Transaction [Domain] Related Party Transaction [Domain] Other future taxable amounts Deferred Tax Liabilities, Other PSUs and PSARS PSU And PSARS [Member] PSU And PSARS [Member] Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling Maturity, Fair Value [Abstract] Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling Maturity, Fair Value [Abstract] Vendor financing Vendor Financing [Member] Vendor Financing [Member] Proceeds from sale of debt securities Proceeds from Sale of Debt Securities, Available-for-sale Capital Loss Carryforward Capital Loss Carryforward [Member] Luxembourg Luxembourg Inland Revenue [Member] Noncurrent portion Long-term Debt, Excluding Current Maturities PSARs and PSU PSARs and PSU [Member] PSARs and PSU Schedule of Goodwill [Table] Schedule of Goodwill [Table] Allocated share-based compensation expense Share-based Payment Arrangement, Expense EURIBOR EURIBOR [Member] EURIBOR [Member] Other Other Countries [Member] Other Countries Options exercisable at end of period Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term Programming commitments Programming Commitments [Member] Programming Commitments [Member] Aviatrix Systems, Inc. (Aviatrix) Aviatrix Systems, Inc. (Aviatrix) [Member] Aviatrix Systems, Inc. (Aviatrix) Entities [Table] Entities [Table] Net earnings (loss) Net earnings (loss) Net loss Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Restricted cash included in other current assets Restricted Cash, Current Total cash and cash equivalents and restricted cash Interest Paid, Continuing Operations Interest Paid, Continuing Operations Schedule of Domestic and Foreign Components of Loss from Continuing Operations before Income Taxes Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block] UPC Facilities AT and AX UPC Facilities AT and AX [Member] UPC Facilities AT and AX Class A Common Class A [Member] Beginning of period End of period Total cash and cash equivalents and restricted cash Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Schedule of Derivative Instruments Schedule of Derivative Instruments [Table Text Block] Common stock, nominal value (in dollars per share) Common Stock, Par or Stated Value Per Share Defined Benefit Plan Disclosure [Line Items] Defined Benefit Plan Disclosure [Line Items] Property and equipment additions: Equity Method Investment, Summarized Financial Information, Payment to Acquire Property, Plant and Equipment Equity Method Investment, Summarized Financial Information, Payment to Acquire Property, Plant and Equipment Debt securities Debt Securities, Realized Gain (Loss) Other comprehensive earnings from continuing operations Other Comprehensive Income (Loss), Net of Tax, Continuing Operations Other Comprehensive Income (Loss), Net of Tax, Continuing Operations Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] Current assets: Assets, Current [Abstract] Other financing activities, net Proceeds from (Payments for) Other Financing Activities Gross carrying amount Finite-Lived Intangible Assets, Gross Schedule of Intangible Assets Subject to Amortization, Net Schedule of Finite-Lived Intangible Assets [Table Text Block] U.S. Internal Revenue Service (IRS) [Member] Net loss from continuing operations attributable to Liberty Global shareholders (in millions) Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent Options exercised (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Balance of net assets at January 1, 2021 Balance of net assets at December 31, 2021 Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value Other comprehensive earnings (loss) Other comprehensive earnings, net of taxes (note 17) Other comprehensive earnings Other Comprehensive Income (Loss), Net of Tax Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List] Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Equity Stockholders' Equity Note Disclosure [Text Block] Classes of Assets and Liabilities Held for Sale Disposal Groups, Including Discontinued Operations [Table Text Block] Lapse of statute of limitations Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations Senior and Senior Secured Notes Senior and Senior Secured Notes [Member] Senior and Senior Secured Notes [Member] 2026 Finite-Lived Intangible Asset, Expected Amortization, Year Five Financial Instruments Fair Value of Financial Instruments, Policy [Policy Text Block] UPC Austria UPC Austria [Member] UPC Austria [Member] Non-operating income (expense): Nonoperating Income (Expense) [Abstract] Auditor Firm ID Auditor Firm ID Payments to acquire Payments to Acquire Equity Method Investments Options impact of dispositions (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Impact Of Dispositions In Period Share-based Compensation Arrangement by Share-based Payment Award, Options, Impact Of Dispositions In Period Net cash provided (used) by investing activities Net Cash Provided by (Used in) Investing Activities Foreign currency, acquisitions and other Debt Instrument, Increase (Decrease), Foreign currency, acquisitions and other, Net Debt Instrument, Increase (Decrease), Foreign currency, acquisitions and other, Net Changes in operating assets and liabilities, net of the effects of acquisitions and dispositions: Increase (Decrease) in Operating Capital [Abstract] Acquisitions SEC Schedule, 12-09, Valuation Allowances and Reserves, Business Acquired UPC DTH UPC DTH [Member] UPC DTH [Member] Other Other Contract [Member] Class of Stock [Domain] Class of Stock [Domain] Diluted earnings (loss) (attributable to Liberty Global shareholders per share (in dollars per share) Business Acquisition, Pro Forma Income (Loss) From Continuing Operations, Net Of Tax, Diluted Business Acquisition, Pro Forma Income (Loss) From Continuing Operations, Net Of Tax, Diluted Operating cash outflows from finance leases (interest component) Finance Lease, Interest Payment on Liability Maximum borrowing capacity Facility amount Line of Credit Facility, Maximum Borrowing Capacity Foreign currency translation adjustments and other Goodwill, Foreign Currency Translation Gain (Loss) Repayment of debt Other Payments to Acquire Businesses Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Ownership [Domain] Ownership [Domain] Sunrise Acquisition Sunrise Acquisition [Member] Sunrise Acquisition Gains included in net earnings (loss) Fair Value, Assets and Liabilities Measured on Recurring Basis, Gain (Loss) Included in Earnings [Abstract] Current assets of discontinued operations (note 6) Disposal Group, Including Discontinued Operation, Assets, Current Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Long-lived assets Long-lived assets Long-Lived Assets UPC SPE Notes UPCB SPE Notes [Member] UPCB SPE Notes [Member] Other current assets (notes 4, 6, 7 and 8) Other current assets Other Assets, Current Other comprehensive earnings attributable to noncontrolling interests, Tax benefit (expense) Other Comprehensive Income (Loss), Tax, Portion Attributable to Noncontrolling Interest Subscription revenue Mobile Subscription [Member] Mobile Subscription [Member] Other assets, net Disposal Group, Including Discontinued Operation, Other Assets, Noncurrent Deferred financing costs, discounts and premiums, net Debt Instrument, Unamortized Discount (Premium), Net Computed “expected” tax benefit (expense) Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount Ireland Ireland [Member] Ireland Beginning of year End of year Total cash and cash equivalents and restricted cash Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Including Disposal Group and Discontinued Operations Liability: Derivative Liability [Abstract] Percentage of amounts recovered Percentage of Net Present Value, Cost Savings Percentage of Net Present Value, Cost Savings Extinguishment of debt Extinguishment of Debt, Amount Balance at beginning of period Balance at end of period SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount Equity-related derivative instruments Total equity-related derivative instruments Equity Contract [Member] Earnings (loss) from continuing operations Earnings (loss) from continuing operations Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest Accrued income taxes Accrued Income Taxes, Current Write off deferred financing costs Write off of Deferred Debt Issuance Cost Basis Swaps Basis Swap [Member] Thereafter Unrecorded Unconditional Purchase Obligation, to be Paid, after Year Five Current Current Foreign Tax Expense (Benefit) Gain (loss) on change in credit risk valuation included in realized and unrealized gains (losses) on derivative instruments, net Gain Loss On Credit Risk Derivatives Net Recognized In Earnings Gain Loss On Credit Risk Derivatives Net Recognized In Earnings Pension Plan Pension Plan [Member] Additions Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases Discontinued operations Interest Paid, Discontinued Operations Schedule of Finite-Lived Intangible Assets by Major Class [Table] Schedule of Finite-Lived Intangible Assets [Table] Accounting Standards Update 2016-13 [Member]