2024 Unrecorded Unconditional Purchase Obligation, to be Paid, Year Two Cross-Currency Swap 1 Cross-Currency Swap 1 [Member] Cross-Currency Swap 1 [Member] Total debt before deferred financing costs, discounts and premiums Total vendor financing maturities Balance at January 1 Balance at June 30 Long-Term Debt, Gross Assets: Disposal Group, Including Discontinued Operation, Assets [Abstract] Finance leases Finance Lease, Right-of-Use Asset, after Accumulated Amortization Property, Plant and Equipment [Abstract] Gain on U.K. JV Transaction (note 4) Gain on U.K. JV transaction Gain on investments Gain (Loss) on Investments Principal payments on capital-related vendor financing Repayments Of Long Term Debt On Capital Financing From Vendors Repayments Of Long Term Debt On Capital Financing From Vendors Debt Instrument [Axis] Debt Instrument [Axis] Fluvius Fluvius [Member] Fluvius Finance lease obligations Finance lease Present value of lease payments Finance Lease, Liability Lease liabilities: Lease Liability [Abstract] Lease Liability [Abstract] Principal Transaction Revenue [Table] Principal Transaction Revenue [Table] Total property and equipment additions Property, Plant and Equipment, Additions Distribution systems Distribution Systems [Member] Distribution Systems [Member] Foreign currency forward and option contracts Foreign Exchange Contract [Member] Due after ten years Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling after 10 Years, Fair Value Additional paid-in capital Additional Paid in Capital PSARs and PSUs PSARs and PSUs [Member] PSARs and PSUs [Member] Revenue Disposal Group, Including Discontinued Operation, Revenue Earnings from discontinued operations, net of taxes Discontinued Operation, Income (Loss) from Discontinued Operation During Phase-out Period, Net of Tax Financial Instruments [Domain] Financial Instruments [Domain] 2026 Finance Lease, Liability, to be Paid, Year Four Weighted average discount rate, for operating leases Operating Lease, Weighted Average Discount Rate, Percent Stated interest percentage Debt Instrument, Interest Rate, Stated Percentage Due in one year or less Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling within One Year, Fair Value 2027 Unrecorded Unconditional Purchase Obligation, to be Paid, Year Five 2025 Finance Lease, Liability, to be Paid, Year Three Measurement Input Type [Domain] Measurement Input Type [Domain] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Aggregate number of shares excluded from computation of EPS (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Operating leases Lessee, Operating Lease, Liability, to be Paid [Abstract] Thereafter Lessee, Operating Lease, Liability, to be Paid, after Year Five Net cash provided by operating activities of discontinued operations Cash Provided by (Used in) Operating Activities, Discontinued Operations Equity Component [Domain] Equity Component [Domain] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Lessee, Leasing Arrangement [Axis] Lessee, Leasing Arrangement [Axis] Lessee, Leasing Arrangement Ownership [Axis] Ownership [Axis] Investment, Name [Domain] Investment, Name [Domain] Depreciation and amortization Finance Lease, Right-of-Use Asset, Amortization Payment of financing costs and debt premiums Payments of Financing Costs Related Party [Domain] Related Party [Domain] Fair value Fair value SMAs Debt Securities, Available-for-Sale Operating lease, liability, current, statement of financial position [Extensible List] Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] Capital-related vendor financing additions Long Term Debt, Capital-Related Additions Long Term Debt, Capital-Related Additions Plan Name [Domain] Plan Name [Domain] Aggregate assets associated with incremental costs to obtain a contract and contract fulfillment costs Capitalized Contract Cost, Net Transfers out of Level 3 Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3 Other comprehensive earnings (loss), net of taxes: Other Comprehensive Income (Loss), Net of Tax [Abstract] Award Type [Axis] Award Type [Axis] Current portion Operating Lease, Liability, Current Net gain on settlement of discount Gain (Loss) On Settlement Of Discounts Gain (Loss) On Settlement Of Discounts Due in five to ten years Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling after 5 through 10 Years, Fair Value Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Other, net Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount Operating costs and expenses (exclusive of depreciation and amortization, shown separately below): Costs and Expenses [Abstract] Percentage ownership in subsidiary Subsidiary or Equity Method Investee, Cumulative Percentage Ownership after All Transactions Long-term portion Long-Term Debt, Excluding Current Maturities Total liabilities Liabilities Weighted average remaining lease term for operating leases Operating Lease, Weighted Average Remaining Lease Term Cash received in connection with the Telenet Tower Sale Proceeds from Sale of Productive Assets Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Cash flows from investing activities: Net Cash Provided by (Used in) Investing Activities [Abstract] Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Revenue Recognition and Related Costs Revenue from Contract with Customer [Policy Text Block] Document Type Document Type Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Finance leases Finance Lease, Liability, to be Paid [Abstract] Cross-Currency Swap 6 Cross-Currency Swap 6 [Member] Cross-Currency Swap 6 [Member] Investments [Abstract] Investments [Abstract] Deferred income tax expense Deferred Income Tax Expense (Benefit) Net cash received (paid) related to derivative instruments Financing activities Payments for (Proceeds from) Derivative Instrument, Financing Activities Plume Design, Inc. (Plume) Plume Design, Inc. (Plume) [Member] Plume Design, Inc. (Plume) Net Investment Income [Line Items] Net Investment Income [Line Items] Residential Service Residential Service [Member] Residential Service [Member] Realized and unrealized gains due to changes in fair values of certain investments, net Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings Accrued capital expenditures Accrued Capital Expenditures, Current Accrued Capital Expenditures, Current Debt Securities, Available-for-sale [Table] Debt Securities, Available-for-Sale [Table] Debt Disclosure [Abstract] Debt Disclosure [Abstract] Impairment, restructuring and other operating items, net Impairment, restructuring and other operating items, net Restructuring, Settlement and Impairment Provisions Income Statement Location [Axis] Income Statement Location [Axis] Cumulative foreign currency translation gain (loss) Disposal Group, Including Discontinued Operation, Foreign Currency Translation Gains (Losses) Current portion Long-Term Debt, Current Maturities Net cash used by financing activities Net Cash Provided by (Used in) Financing Activities Unused borrowing capacity, amount Debt Instrument, Unused Borrowing Capacity, Amount Variable lease expense Variable Lease, Cost Liberty Global shareholders: Stockholders' Equity Attributable to Parent [Abstract] Long-term portion Finance Lease, Liability, Noncurrent Government bonds Municipal Bonds [Member] Schedule of Fair Values of Derivative Instrument Assets and Liabilities Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] Schedule of Intangible Assets Subject to Amortization, Net Schedule of Finite-Lived Intangible Assets [Table Text Block] Finance lease expense: Finance Leases, Cost [Abstract] Finance Leases, Cost [Abstract] Derivative Contract [Domain] Derivative Contract [Domain] Cumulative foreign currency translation loss Translation Adjustment Functional to Reporting Currency, Net of Tax Entity Registrant Name Entity Registrant Name Subsequent Events Subsequent Events [Text Block] Ireland Ireland Segment [Member] Ireland Segment Unrecorded Unconditional Purchase Obligation [Line Items] Unrecorded Unconditional Purchase Obligation [Line Items] Total subscription revenue Cable Subscription [Member] Cable Subscription [Member] Leases [Abstract] Leases [Abstract] Total equity Beginning balance Ending balance Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Number of sites Operating Lease, Number Of Build To Suit Sites Operating Lease, Number Of Build To Suit Sites Minimum Minimum [Member] Entity Emerging Growth Company Entity Emerging Growth Company Tax benefit associated with technology innovation Effective Income Tax Rate Reconciliation, Technology Innovation, Amount Effective Income Tax Rate Reconciliation, Technology Innovation, Amount VodafoneZiggo JV Receivable II VodafoneZiggo JV Receivable II [Member] VodafoneZiggo JV Receivable II Common stock, nominal value (in dollars per share) Common Stock, Par or Stated Value Per Share Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] Fair Value Measurements Fair Value Disclosures [Text Block] Investment, Name [Axis] Investment, Name [Axis] 3.875 % UPC Holding Senior Notes Debt 3.875 % UPC Holding Senior Notes Debt [Member] 3.875 % UPC Holding Senior Notes Debt Trading Symbol Trading Symbol Entity File Number Entity File Number Average price paid per share (in dollars per share) Treasury Stock Acquired, Average Cost Per Share Telenet Senior Secured Notes Telenet Senior Secured Notes [Member] Telenet Senior Secured Notes [Member] Measurement Input, Weighted Average Cost Of Capital Measurement Input, Weighted Average Cost Of Capital [Member] Measurement Input, Weighted Average Cost Of Capital Comprehensive earnings attributable to noncontrolling interests Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest UPC Holding UPC Holding UPC Holding [Member] UPC Holding [Member] UPC Holding Bank Facility UPC Holding Bank Facility [Member] UPC Holding Bank Facility [Member] Investment Income [Table] Investment Income [Table] Title of Individual [Axis] Title of Individual [Axis] Other, including intersegment eliminations Geography Eliminations [Member] Schedule Of Cash Received Paid Related To Derivative Instruments Statement Of Cash Flows Location Schedule Of Cash Received Paid Related To Derivative Instruments Statement Of Cash Flows Location [Table Text Block] Schedule Of Cash Received Paid Related To Derivative Instruments Statement Of Cash Flows Location Income Taxes Income Tax Disclosure [Text Block] Liabilities Derivative Liability [Abstract] Weighted average interest rate Debt, Weighted Average Interest Rate Credit Facility [Domain] Credit Facility [Domain] Basic earnings attributable to Liberty Global shareholders per share (in USD per share) Earnings Per Share, Basic Schedule of Equity Method Investments [Table] Schedule of Equity Method Investments [Table] Total liabilities Disposal Group, Including Discontinued Operation, Liabilities Central and Other Corporate, Non-Segment [Member] Distributions by subsidiaries to noncontrolling interest owners Payments to Noncontrolling Interests Interest Rate Collars Interest Rate Collar [Member] Interest Rate Collar Damages sought Loss Contingency, Damages Sought, Value Ownership [Domain] Ownership [Domain] Entity Interactive Data Current Entity Interactive Data Current Fair Value, by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] Schedule of Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] Percent of annual incentive compensation receivable in shares Shareholder Inventive Program, Percent of Annual Incentive Compensation Shareholder Inventive Program, Percent of Annual Incentive Compensation Accrued interest Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss ITV ITV - Subject to Re-Use Rights [Member] ITV - Subject to Re-Use Rights [Member] 2027 Finance Lease, Liability, to be Paid, Year Five Non-subscription revenue Business to Business Non-Subscription [Member] Business to Business Non-Subscription [Member] Summary of Stock-Based Compensation Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block] Repurchases of Liberty Global ordinary shares Payments for Repurchase of Common Stock Class of Stock [Axis] Class of Stock [Axis] Thereafter Long-Term Debt, Maturity, after Year Five Document Quarterly Report Document Quarterly Report Realized and unrealized gains (losses) on derivative instruments, net (note 6) Realized and unrealized gains on derivative instruments, net Gain (Loss) on Derivative Instruments, Net, Pretax Current assets: Assets, Current [Abstract] Derivative instruments (note 6) Derivative Instruments and Hedges, Liabilities Geographic Segments Revenue from External Customers by Geographic Areas [Table Text Block] Accumulated earnings Retained Earnings (Accumulated Deficit) Basis and other differences in the treatment of items associated with investments in subsidiaries and affiliates Effective Income Tax Rate Reconciliation, Decrease in Basis and Other Differences in the Treatment of Items Associated with Investments in Subsidiaries and Affiliates, Amount Effective Income Tax Rate Reconciliation, Decrease in Basis and Other Differences in the Treatment of Items Associated with Investments in Subsidiaries and Affiliates, Amount Schedule of Finite-Lived Intangible Assets by Major Class [Table] Schedule of Finite-Lived Intangible Assets [Table] Gains included in earnings from continuing operations Fair Value, Assets and Liabilities Measured on Recurring Basis, Gain (Loss) Included in Earnings [Abstract] Lionsgate Lionsgate [Member] Lionsgate [Member] Options exercisable, weighted average exercise price or base price (in dollars per shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Exercise Price Number of borrowing groups Number of Borrowing Groups Number of Borrowing Groups Property and Equipment Additions of our Reportable Segments Schedule of Reporting Capital Expenditures of Reportable Segments [Table Text Block] Schedule of Reporting Capital Expenditures of Reportable Segments [Table Text Block] Formula E Formula E [Member] Formula E [Member] Other accrued and current liabilities Disposal Group, Including Discontinued Operation, Accounts Payable and Accrued Liabilities, Current Document Fiscal Year Focus Document Fiscal Year Focus Percent of interest income earned on loan included in investment Percent of Interest Income Earned on Loan Included in Income (Loss) from Equity Method Investments Percent of Interest Income Earned on Loan Included in Income (Loss) from Equity Method Investments Cash flows from operating activities: Net Cash Provided by (Used in) Operating Activities [Abstract] Principal payments on finance leases Financing cash outflows from finance leases (principal component) Finance Lease, Principal Payments Total capital expenditures, net Payments for Capital Improvements Total enterprise value Disposal Group, Including Discontinued Operation, Consideration Segment Reporting, Measurement Disclosures [Abstract] Segment Reporting, Measurement Disclosures [Abstract] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Counterparty Credit Risk Counterparty Credit Risk [Member] Counterparty Credit Risk [Member] Recent Accounting Pronouncements Accounting Standards Update and Change in Accounting Principle [Text Block] Loss Contingencies [Table] Loss Contingencies [Table] Customer premises equipment Customer Premises Equipment [Member] Customer Premises Equipment [Member] Other Other, net Other Unnamed Investment [Member] Other Unnamed Investment [Member] Reclassification adjustment included in net earnings (note 4) Reclassification from AOCI, Current Period, before Tax, Attributable to Parent Other investments Long-term Investments, Fair Value Long-term Investments, Fair Value Non-subscription revenue Mobile Non-Subscription [Member] Mobile Non-Subscription [Member] Capital expenditures, net Payments to Acquire Productive Assets Equity Method Investment, Nonconsolidated Investee [Axis] Equity Method Investment, Nonconsolidated Investee [Axis] Excess of carrying amount over proportional share in investees net assets Equity Method Investment, Difference Between Carrying Amount and Underlying Equity Deferred financing costs, discounts and premiums, net Debt Instrument, Unamortized Discount (Premium), Net Percentage of amounts recovered Percentage of Amounts Recovered Percentage of Amounts Recovered Repurchases by Telenet of its outstanding shares Payments for Repurchase of Other Equity Common stock, outstanding (in shares) Common Stock, Shares, Outstanding Goodwill (note 8) Goodwill Goodwill beginning balance Goodwill ending balance Goodwill UPC Revolving Facility UPC Revolving Facility [Member] UPC Revolving Facility [Member] Property, Plant and Equipment, Type [Axis] Long-Lived Tangible Asset [Axis] Income tax expense (note 11) Total income tax expense Income tax expense Income Tax Expense (Benefit) Geographical [Domain] Geographical [Domain] Net increase (decrease) in cash and cash equivalents and restricted cash: Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect [Abstract] Investments Investment Holdings [Text Block] Programming and other direct costs of services Cost of Goods and Services Sold Total Derivative liability Derivative Liability Total cash outflows from operating and finance leases Operating and Finance Lease, Payments Operating and Finance Lease, Payments Support equipment, buildings and land Support Equipment, Buildings and Land [Member] Support Equipment, Buildings and Land [Member] Continuing operations Income Taxes Paid, Continuing Operations Income Taxes Paid, Continuing Operations Loss Contingencies [Line Items] Loss Contingencies [Line Items] Percent of reduction in monthly wholesale cable resale access prices Percent Of Reduction In Monthly Wholesale Cable Resale Access Prices Percent of Reduction in Monthly Wholesale Cable Resale Access Prices Other accrued and current liabilities Accounts Payable and Accrued Liabilities, Current Total investments Investments Common stock Common Stock, Value, Issued Discontinued operations (in USD per share) Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Diluted Share Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Net cash received in connection with the U.K. JV Transaction Proceeds From Investment With Joint Venture Equalization Payment Received Proceeds From Investment With Joint Venture Equalization Payment Received Schedule Of Realized And Unrealized Gains Losses On Derivative Instruments Schedule Of Realized And Unrealized Gains Losses On Derivative Instruments [Table Text Block] Schedule Of Realized And Unrealized Gains Losses On Derivative Instruments Remainder of 2022 Unrecorded Unconditional Purchase Obligation, to be Paid, Remainder of Fiscal Year Amount of claim Bankruptcy Claims, Amount of Claims Settled UK JV Services UK JV Services [Member] UK JV Services Current liabilities: Liabilities, Current [Abstract] Telenet Credit Facility Telenet Credit Facility [Member] Telenet Credit Facility [Member] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] Impact of derivative instruments on borrowing costs Impact of Derivative Instruments on Borrowing Costs, Percent Increase (Decrease) Impact of Derivative Instruments on Borrowing Costs, Percent Increase (Decrease) Dispositions Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Issuances Deferred revenue (note 3) Contract with Customer, Liability, Current Interest expense Finance Lease, Interest Expense Total Liberty Global shareholders Parent [Member] Income Statement Location [Domain] Income Statement Location [Domain] Asset Derivative Asset [Abstract] Amendment Flag Amendment Flag Operating lease expense Operating Lease, Cost Other comprehensive earnings (loss) Other comprehensive loss, net of taxes Other Comprehensive Income (Loss), Net of Tax Net cash provided by operating activities of continuing operations Net Cash Provided by (Used in) Operating Activities, Continuing Operations Acquisitions and Dispositions Mergers, Acquisitions and Dispositions Disclosures [Text Block] Other assets, net (notes 3, 4, 6 and 10) Other assets, net Other Assets, Noncurrent Effect of exchange rate changes on cash and cash equivalents and restricted cash: Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Including Disposal Group and Discontinued Operations [Abstract] Options exercisable (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Number Central and Other Central and Other [Member] Central and Corporate [Member] Schedule of Reconciliation of the Beginning and Ending Balances of Assets and Liabilities Measured at Fair Value Using Significant Unobservable, or Level 3, Inputs Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Table Text Block] Term of contract Lessee, Operating Lease, Term of Contract Counterparty Name [Axis] Counterparty Name [Axis] Realized and unrealized gains (losses) due to changes in fair values of certain investments, net (notes 5 and 7) Realized and unrealized losses (gains) due to changes in fair values of certain investments, net Realized and unrealized losses (gains) due to changes in fair values of certain investments, net Realized And Unrealized Gains (Losses) Due To Changes In Fair Values of Certain Investments and Debt, Net Realized And Unrealized Gains (Losses) Due To Changes In Fair Values of Certain Investments and Debt, Net Deferred financing costs, discounts and premiums, net Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net Discontinued operations (note 4): Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent [Abstract] Non-cash borrowings and repayments of debt Non-Cash Borrowings and Repayments of Debt Non-Cash Borrowings and Repayments of Debt Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Assets acquired under finance leases Lease Obligation Incurred Operating cash outflows from operating leases Operating Lease, Payments Debt (excluding vendor financing) Repayments of Long-Term Debt Treasury shares, at cost Treasury Stock, Value Long-term Debt Long-Term Debt [Member] Non-performance based incentive awards Non-Performance Based Share-Based Awards [Member] Non-Performance Based Share-Based Awards [Member] Trade receivables, allowance for doubtful accounts Accounts Receivable, Allowance for Credit Loss, Current Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] Accrued income taxes (note 11) Accrued Income Taxes, Current Maximum Maximum [Member] Value added tax, vendor financing arrangement Value Added Tax, Vendor Financing Arrangement Value Added Tax, Vendor Financing Arrangement Cash paid for amounts included in the measurement of lease liabilities: Cash Flow, Lessee [Abstract] Cash Flow, Lessee [Abstract] Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] CANAL+ Polska S.A. CANAL+ Polska S.A. [Member] CANAL+ Polska S.A. Repurchases and cancellations of Liberty Global ordinary shares (note 12) Stock Repurchased and Retired During Period, Value Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Discontinued operations Net Cash Provided by (Used in) Discontinued Operations Balance at January 1, including amounts classified as held for sale Long Term Debt And Assets Held For Sale Long Term Debt And Assets Held For Sale Operating lease, right-of-use asset, statement of financial position [Extensible List] Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Business Acquisition [Line Items] Business Acquisition [Line Items] Equity Stockholders' Equity Note Disclosure [Text Block] Earnings from continuing operations Earnings from continuing operations Earnings from continuing operations Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest Percentage of minority interest revenues and expenses included in net earnings attributable to noncontrolling interest Percentage Of Minority Interest Revenues And Expenses From Consolidated Statements Of Operations Included In Net Earnings Attributable To Noncontrolling Interest Percentage Of Minority Interest Revenues And Expenses From Consolidated Statements Of Operations Included In Net Earnings Attributable To Noncontrolling Interest Network and connectivity commitments Network and Connectivity Commitments [Member] Network and Connectivity Commitments [Member] Performance measures, percentage of reportable segment revenue and operating cash flow presented Performance Measures Percentage Of Reportable Segment Revenue And Operating Cash Flow Presented Performance Measures Percentage Of Reportable Segment Revenue And Operating Cash Flow Presented Accumulated unrealized losses Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain (Loss), before Tax Earnings before income taxes Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax Telenet Revolving Credit Facility I Telenet Revolving Credit Facility I [Member] Telenet Revolving Credit Facility I [Member] Equity-related derivative instruments Equity-related derivative instruments Equity Contract [Member] Discontinued operations Income Taxes Paid, Discontinued Operations Income Taxes Paid, Discontinued Operations Title of 12(b) Security Title of 12(b) Security Other long-term liabilities Disposal Group, Including Discontinued Operation, Other Liabilities, Noncurrent Basis of Presentation Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Short-term investments Short-Term Investments Foreign currency translation adjustments and other, net Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net Subsequent Event [Line Items] Subsequent Event [Line Items] Repayments of lines of credit Repayments of Lines of Credit Total residential fixed revenue Cable [Member] Cable [Member] Long-term Derivative Asset, Noncurrent Segment Reporting Segment Reporting Disclosure [Text Block] SG&A expense Selling, General and Administrative Expenses [Member] Equity Method Investment, Nonconsolidated Investee [Domain] Equity Method Investment, Nonconsolidated Investee [Domain] Cross-Currency Swap 7 Cross-Currency Swap 7 [Member] Cross-Currency Swap 7 [Member] Entity Address, Country Entity Address, Country Total Unrecorded Unconditional Purchase Obligation LIABILITIES AND EQUITY Liabilities and Equity [Abstract] 2022 (remainder of year) Long-Term Debt, Maturity, Remainder of Fiscal Year Equity Method Investment, Nonconsolidated Investee or Group of Investees Equity Method Investment, Nonconsolidated Investee or Group of Investees [Member] Notional amount due to counterparty Notional amount Due To Counterparty [Member] Due To Counterparty [Member] Accounts payable Accounts Payable, Current Video Cable Video Subscription [Member] Cable Video Subscription [Member] Belgium Regulatory Developments Belgium Regulatory Developments [Member] Belgium Regulatory Developments [Member] VodafoneZiggo JV Loan VodafoneZiggo JV Loan [Member] VodafoneZiggo JV Loan [Member] Assessed period Share-Based Compensation Arrangement By Share-Based Payment Award, Assessed Period Share-Based Compensation Arrangement By Share-Based Payment Award, Assessed Period 5.5% UPC Holdings Senior Notes 5.5% UPC Holdings Senior Notes [Member] 5.5% UPC Holdings Senior Notes Continuing operations (in USD per share) Income (Loss) from Continuing Operations, Per Basic Share Accumulated depreciation Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, Accumulated Depreciation and Amortization Additional shares authorized to be repurchased Stock Repurchase Program, Additional Number of Shares Authorized to be Repurchased Stock Repurchase Program, Additional Number of Shares Authorized to be Repurchased Weighted average ordinary shares outstanding (basic EPS computation) (in shares) Weighted Average Number of Shares Outstanding, Basic Disposal Groups, Including Discontinued Operations [Table] Disposal Groups, Including Discontinued Operations [Table] Loss contingency accrual Loss Contingency Accrual Investing activities Payments for (Proceeds from) Derivative Instrument, Investing Activities Total residential mobile revenue Mobile Residential [Member] Mobile Residential [Member] Ownership percentage Equity Method Investment, Ownership Percentage Gain on Telenet Tower Sale (note 4) Gain on Telenet Tower Sale Gain (Loss) on Disposition of Assets Notional amount Derivative, Notional Amount Schedule of Debt Schedule of Debt [Table Text Block] Property, Plant and Equipment [Line Items] Property, Plant and Equipment [Line Items] Unrecorded Unconditional Purchase Obligation by Category of Item Purchased [Axis] Unrecorded Unconditional Purchase Obligation by Category of Item Purchased [Axis] Options and SARs Options and Share Appreciation Rights (SARs) [Member] Options and Share Appreciation Rights (SARs) [Member] Current portion of debt and finance lease obligations (notes 9 and 10) Debt, Current Schedule of Long-term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] Leases Lessee, Leases [Policy Text Block] Significant unobservable inputs (Level 3) Fair Value, Inputs, Level 3 [Member] Payments of third party costs Payments Of Third Party Costs Payments Of Third Party Costs Long-term, SMAs Debt Securities, Available-for-Sale, Noncurrent Share-based Compensation Share-Based Payment Arrangement [Text Block] Eligible participants’ initial contribution percent Share-based Compensation Arrangement by Share-based Payment For Eligible Participants’ Initial Contribution Share-based Compensation Arrangement by Share-based Payment For Eligible Participants’ Initial Contribution Schedule of Share-Based Compensation Expense Share-Based Payment Arrangement, Cost by Plan [Table Text Block] Non-deductible or non-taxable interest and other items Effective Income Tax Rate Reconciliation, Nondeductible Expense, Amount UPC Facility AX UPC Facility AX [Member] UPC Facility AX Non-controlling interests Noncontrolling Interest [Member] Goodwill [Roll Forward] Goodwill [Roll Forward] Related Party [Axis] Related Party [Axis] Extinguishment of debt Extinguishment of Debt, Amount Incremental shares attributable to the assumed exercise of outstanding options and SARs and the release of RSUs and PSUs upon vesting (treasury stock method) (in shares) Incremental Common Shares Attributable to Dilutive Effect of Share-Based Payment Arrangements Diluted earnings attributable to Liberty Global shareholders per share (note 14): Earnings Per Share, Diluted [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] Disposal Group Name [Domain] Disposal Group Name [Domain] Equity-related derivative instruments Equity-Related Derivative Instruments [Member] Equity-Related Derivative Instruments [Member] Significant other observable inputs (Level 2) Fair Value, Inputs, Level 2 [Member] Realized and unrealized gains (losses) Realized And Unrealized Gains (Losses) Due To Changes In Fair Values Of Certain Investments Realized And Unrealized Gains (Losses) Due To Changes In Fair Values of Certain Investments Current Fiscal Year End Date Current Fiscal Year End Date Total ROU assets Lease Asset Lease Asset Additions Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases Goodwill Disposal Group, Including Discontinued Operation, Goodwill, Noncurrent U.K. JV Transaction U.K. JV Transaction [Member] U.K. JV Transaction Total assets Disposal Group, Including Discontinued Operation, Assets Ventures Incentive Plans Ventures Incentive Plans [Member] Ventures Incentive Plans Unconditional Purchase Obligation, Category of Goods or Services Acquired [Domain] Unconditional Purchase Obligation, Category of Goods or Services Acquired [Domain] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Share-based compensation (note 13) APIC, Share-Based Payment Arrangement, Increase for Cost Recognition Telefonica Telefónica [Member] Telefónica 2026 Unrecorded Unconditional Purchase Obligation, to be Paid, Year Four Total current liabilities Liabilities, Current Percentage of share based compensation expense Equity Method Investment, Percentage Of Share Based Compensation Expense Equity Method Investment, Percentage Of Share Based Compensation Expense Gain on U.K. JV Transaction Other Nonoperating Gains (Losses) Cross-Currency Swap 3 Cross-Currency Swap 3 [Member] Cross-Currency Swap 3 [Member] UTB that would impact effective tax rate Unrecognized Tax Benefits that Would Impact Effective Tax Rate Expiration period Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period Schedule of Derivative Instruments Schedule of Derivative Instruments [Table Text Block] Non-operating income (expense): Nonoperating Income (Expense) [Abstract] Term of transitional services Disposal Group, Term of Transitional Services Disposal Group, Term of Transitional Services Lacework Inc. (Lacework) Lacework Inc. (Lacework) [Member] Lacework Inc. (Lacework) Other financing activities, net Proceeds from (Payments for) Other Financing Activities Weighted average remaining lease term for finance leases Finance Lease, Weighted Average Remaining Lease Term Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative Instruments and Hedging Activities Disclosure [Abstract] Related party note receivable rate Receivable with Imputed Interest, Effective Yield (Interest Rate) Telenet tower lease agreement Telenet Tower Lease Agreement [Member] Telenet Tower Lease Agreement Credit Facility [Axis] Credit Facility [Axis] Other Other Other Contract [Member] Long-term debt and finance lease obligations (notes 9 and 10) Long-term debt and finance lease obligations Long-term debt and finance lease obligations Long-Term Debt and Lease Obligation Cash and cash equivalents and restricted cash: Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents [Abstract] Equity [Abstract] Equity [Abstract] Subsequent Event [Table] Subsequent Event [Table] Entity Tax Identification Number Entity Tax Identification Number Derivatives, Fair Value [Line Items] Derivatives, Fair Value [Line Items] Schedule of Investments [Table] Schedule of Investments [Table] Cross-Currency Swap 2 Cross-Currency Swap 2 [Member] Cross-Currency Swap 2 [Member] Operating activities Payments for (Proceeds from) Derivative Instrument, Operating Activities Payments for (Proceeds from) Derivative Instrument, Operating Activities VodafoneZiggo JV Receivable I VodafoneZiggo JV Receivable I [Member] VodafoneZiggo JV Receivable I VodafoneZiggo JV VodafoneZiggo JV VodafoneZiggo JV [Member] VodafoneZiggo JV [Member] Consolidated Entities [Domain] Consolidated Entities [Domain] Accrued Income Taxes [Abstract] Accrued Income Taxes [Abstract] Income Tax Benefit (Expense) Reconciliation Table Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Total Net increase (decrease) Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Intangible assets subject to amortization, net (note 8) Intangible assets subject to amortization, net Other Intangible Assets, Net Entity Central Index Key Entity Central Index Key Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Measurement Input Type [Axis] Measurement Input Type [Axis] Entity [Domain] Entity [Domain] City Area Code City Area Code ASSETS Assets [Abstract] Unrecorded Unconditional Purchase Obligation [Table] Unrecorded Unconditional Purchase Obligation [Table] UPC Facility AY UPC Facility AY [Member] UPC Facility AY Repayments of long-term loans from vendors Repayments of Long-Term Loans from Vendors 2023 Long-Term Debt, Maturity, Year One Share-based compensation expense Share-Based Payment Arrangement, Noncash Expense Other long-term liabilities (notes 3 and 6) Other long-term liabilities Other Liabilities, Noncurrent Share of results of affiliates, net (note 5) Share of results of affiliates, net Share of results of affiliates, net Equity method investment Income (Loss) from Equity Method Investments U.K. U.K. [Member] U.K. / Ireland [Member] Weighted Average Weighted Average [Member] Interkabel Acquisition Interkabel Acquisition [Member] Interkabel Acquisition [Member] Schedule of Earnings Per Share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Thereafter Finance Lease, Liability, to be Paid, after Year Five Addition to ROU assets associated with operating leases Right-of-Use Asset Obtained in Exchange for Operating Lease Liability VMO2 JV VMED O2 JV [Member] VMED O2 JV Cash paid for investments Payments to Acquire Interest in Subsidiaries and Affiliates Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Term of leases Total payments Lessee, Operating Lease, Liability, to be Paid Net earnings Net earnings Net earnings Net earnings (loss) Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Entity Address, Postal Zip Code Entity Address, Postal Zip Code Continuing operations Net Cash Provided by (Used in) Continuing Operations Realized net losses Debt Securities, Realized Gain (Loss) 2024 Long-Term Debt, Maturity, Year Two VM Ireland VM Ireland [Member] VM Ireland Total investments Investments, Fair Value Disclosure Revenue from transitional services Revenue From Transitional Services Revenue From Transitional Services Schedule of Other Share Based Compensation Activity Share-Based Payment Arrangement, Outstanding Award, Activity, Excluding Option [Table Text Block] Maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Current portion of debt and finance lease obligations Long-Term Debt and Lease Obligation, Current Total debt maturities Long-term Debt, Gross Contractual Maturities Long-term Debt, Gross Contractual Maturities Foreign currency translation adjustments Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax Non-subscription revenue Cable Non-Subscription [Member] Cable Non-Subscription [Member] Purchase commitments Purchase Commitments [Member] Purchase Commitments [Member] Skillz Inc. (Skillz) Skillz [Member] Skillz Total debt Long-term Debt Contractual Maturities Long-term Debt Contractual Maturities Adjusted EBITDA Income (loss) from continuing operations before income taxes Sum of operating profit and nonoperating income (expense) before income taxes. Other investing activities, net Payments for (Proceeds from) Other Investing Activities Statistical Measurement [Domain] Statistical Measurement [Domain] Discontinued operations Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Disposal Group, Including Discontinued Operations Share-based Payment Arrangement [Abstract] Share-Based Payment Arrangement [Abstract] JV Services JV Services [Member] JV Services [Member] Total Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Including Disposal Group and Discontinued Operations Property and equipment, net (notes 8 and 10) Property and equipment, net Total property and equipment, net Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization Aggregate purchase price Treasury Stock, Value, Acquired, Cost Method Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table] Net earnings attributable to Liberty Global shareholders Net Income (Loss) Attributable to Parent Leases Lessee, Finance Leases [Text Block] Other Other Intangible Assets [Member] 2022 (remainder of year) Finance Lease, Liability, to be Paid, Remainder of Fiscal Year Maturities of Debt and Capital Lease Obligations Schedule of Maturities of Long-Term Debt [Table Text Block] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Long-term debt and finance lease obligations Disposal Group, Including Discontinued Operation, Debt and Capital Lease Obligations, Noncurrent Disposal Group, Including Discontinued Operation, Debt and Capital Lease Obligations, Noncurrent Change in valuation allowances Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount Total assets Assets, Fair Value Disclosure Other revenue Other Category [Member] Other Category [Member] Other operating expense Other Operating Income (Expense) [Member] Vesting percentage Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage Leases Lessee, Operating Leases [Text Block] Share-based compensation expense Share-Based Payment Arrangement, Plan Modification, Incremental Cost Plan Name [Axis] Plan Name [Axis] Contract assets Contract with Customer, Asset, after Allowance for Credit Loss Televisa Univision Televisa Univision Televisa Univision Holdings Inc [Member] Televisa Univision Holdings Inc Total debt and finance lease obligations Long-Term Debt and Lease Obligation, Including Current Maturities Liabilities: Disposal Group, Including Discontinued Operation, Liabilities [Abstract] Continuing operations (in USD per share) Income (Loss) from Continuing Operations, Per Diluted Share Derivative Instrument [Axis] Derivative Instrument [Axis] 2022 (remainder of year) Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Quoted prices in active markets for identical assets (Level 1) Fair Value, Inputs, Level 1 [Member] Schedule of Weighted Average Number of Shares Schedule of Weighted Average Number of Shares [Table Text Block] Mobile Services Mobile Services [Member] Mobile Services [Member] Changes in current liabilities related to capital expenditures Increase (Decrease) in Current Liabilities Related to Capital Expenditures Increase (Decrease) in Current Liabilities Related to Capital Expenditures Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities Total Derivative assets Derivative Asset Schedule of Debt Securities Debt Securities, Available-for-Sale [Table Text Block] Non-taxable gain associated with the U.K. JV Transaction Effective Income Tax Rate Reconciliation, Disposition of Business, Amount Related Party Transaction [Domain] Related Party Transaction [Domain] UPC Facility AQ UPC Facility AQ [Member] UPC Facility AQ Telenet Overdraft Facility Telenet Overdraft Facility [Member] Telenet Overdraft Facility [Member] Liberty Global Liberty Global [Member] Liberty Global Due in one to five years Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling after One Through Five Years, Fair Value Fair Value, Assets and Liabilities (Net) Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Schedule of Equity Method Investments [Line Items] Schedule of Equity Method Investments [Line Items] UPC Poland UPC Poland [Member] UPC Poland Legal Entity [Axis] Legal Entity [Axis] UPC Holding Senior Notes UPC Holding Senior Notes Debt [Member] UPC Holding Senior Notes Debt [Member] Certificates of deposit Certificates of Deposit [Member] Operating-related vendor financing additions Long Term Debt, Operating Related Additions Long Term Debt, Operating Related Additions Geographical [Axis] Geographical [Axis] Accounting Changes and Error Corrections [Abstract] Accounting Changes and Error Corrections [Abstract] Broadband internet Cable Broadband Internet Subscription [Member] Cable Broadband Internet Subscription [Member] Current Derivative Liability, Current Schedule of Property and Equipment Property, Plant and Equipment [Table Text Block] Short-term, separately-managed accounts (SMAs) Debt Securities, Available-for-Sale, Current Cross-Currency Swap 8 Cross-Currency Swap 8 [Member] Cross-Currency Swap 8 Country Region Country Region Debt Covenant [Domain] Debt Covenant [Domain] Debt Covenant [Domain] Dividends received from the VMO2 JV Proceeds from Equity Method Investment, Distribution, Return of Capital Debt Debt Disclosure [Text Block] Segments [Axis] Segments [Axis] Product and Service [Domain] Product and Service [Domain] Entity Shell Company Entity Shell Company Class B Common Class B [Member] Realized and unrealized gains on derivative instruments, net Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Earnings All3Media All3Media [Member] All3Media [Member] 2023 Lessee, Operating Lease, Liability, to be Paid, Year One Financial Instrument [Axis] Financial Instrument [Axis] 2025 Long-Term Debt, Maturity, Year Three Consolidation Items [Domain] Consolidation Items [Domain] Subsequent Event Subsequent Event [Member] Document Period End Date Document Period End Date Class C Common Class C [Member] Total assets Assets Net cash used by financing activities of continuing operations Net Cash Provided by (Used in) Financing Activities, Continuing Operations Earnings Per Share [Abstract] Earnings Per Share [Abstract] Antidilutive Securities Excluded from Computation of Earnings Per Share, by Antidilutive Securities [Axis] Antidilutive Securities [Axis] Belgium Belgium Segment [Member] Belgium Segment [Member] Other investments Equity Securities, FV-NI, Current Other commitments Other Commitments [Member] Other Commitments [Member] Interest Rate Swap Interest Rate Swap [Member] 2027 Lessee, Operating Lease, Liability, to be Paid, Year Five Estimated fair value Long-Term Debt, Fair Value Investments and related notes receivable (including $2,296.2 million and $2,757.8 million, respectively, measured at fair value on a recurring basis) (note 5) Long-term investments Long-Term Investments Authorized amount of share repurchases Stock Repurchase Program, Authorized Amount Earnings from continuing operations before income taxes Earnings (loss) before income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Telenet Revolving Facility Telenet Revolving Facility [Member] Telenet Revolving Facility [Member] Segments [Domain] Segments [Domain] Weighted average remaining life Derivative, Average Remaining Maturity Schedule of Goodwill [Table] Schedule of Goodwill [Table] Amortization of deferred financing costs and non-cash interest Amortization of Debt Issuance Costs and Discounts Earnings per Share Earnings Per Share [Text Block] Interest Rate Caps Interest Rate Cap [Member] Schedule of Investments [Line Items] Schedule of Investments [Line Items] Comprehensive earnings Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Award Type [Domain] Award Type [Domain] Gains (losses) on debt extinguishment, net (note 9) Losses (gains) on debt extinguishment, net Losses (gains) on debt extinguishment, net Gain (Loss) on Extinguishment of Debt Net cash used by investing activities of discontinued operations Cash Provided by (Used in) Investing Activities, Discontinued Operations Total B2B revenue Business to Business [Member] Business to Business [Member] Revenue Revenue from Contract with Customer, Including Assessed Tax Discontinued operations (in USD per share) Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share Total finance lease expense Finance Lease, Cost Finance Lease, Cost Basis Swaps Basis Swap [Member] Foreign currency translation adjustments and other Goodwill, Foreign Currency Translation Gain (Loss) Customer relationships Customer Relationships [Member] Entity Address, City or Town Entity Address, City or Town ITV Collar ITV Collar [Member] ITV Collar [Member] Long-lived Assets Long Lived Assets Disclosure [Text Block] The entire disclosure for long-lived assets. Cross-currency, interest rate and foreign currency derivative contracts Cross-Currency and Interest Rate Derivative Contracts [Member] Cross-Currency and Interest Rate Derivative Contracts [Member] Intersegment eliminations Intersegment Eliminations [Member] Subscription revenue Business to Business Subscription [Member] Business to Business Subscription [Member] Noncontrolling interests Stockholders' Equity Attributable to Noncontrolling Interest Condensed Consolidated Balance Sheet Statement of Financial Position [Abstract] Held by former Liberty Global employees Former Employees [Member] Former Employees [Member] Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Schedule of Investments by Accounting Method Schedule of Investments by Accounting Method [Table Text Block] Schedule of Investments by Accounting Method [Table Text Block] Debt and Lease Obligation [Abstract] Debt and Lease Obligation [Abstract] Non-deductible or non-taxable foreign currency exchange results Effective Income Tax Rate Reconciliation, Foreign Currency Translation, Amount Effective Income Tax Rate Reconciliation, Foreign Currency Translation, Amount Disposal Group Classification [Axis] Disposal Group Classification [Axis] NetCo NetCo [Member] NetCo Restricted cash included in other current assets and other assets, net Restricted Cash and Cash Equivalents RSUs Restricted Stock Units (RSUs) [Member] Entity Information [Line Items] Entity Information [Line Items] Switzerland SWITZERLAND Assets acquired under capital-related vendor financing arrangements Assets Acquired Under Capital-Related Vendor Financing Arrangements Assets Acquired Under Capital-Related Vendor Financing Arrangements Total Proceeds (Repayments) From Derivatives, Continuing Operations Proceeds (Repayments) From Derivatives, Continuing Operations Liberty Global Parent Company [Member] Subsequent Events [Abstract] Net earnings from continuing operations attributable to Liberty Global shareholders Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent Schedule of Changes in Carrying Amount of Goodwill Schedule of Goodwill [Table Text Block] Total Interest Paid, Excluding Capitalized Interest, Operating Activities Belgium BELGIUM Property and equipment, net Disposal Group, Including Discontinued Operation, Property, Plant and Equipment, Noncurrent 2025 Lessee, Operating Lease, Liability, to be Paid, Year Three Stock Options, SARs and RSUs Stock Options, SARs and RSUs [Member] Stock Options, SARs and RSUs [Member] Lessee, Leasing Arrangement [Domain] Lessee, Leasing Arrangement [Domain] Lessee, Leasing Arrangement [Domain] Counterparty Name [Domain] Counterparty Name [Domain] Treasury shares, at cost Treasury Stock [Member] Total Liberty Global shareholders Stockholders' Equity Attributable to Parent Derivative Instruments Derivative Instruments and Hedging Activities Disclosure [Text Block] Beginning of period End of period Total cash and cash equivalents and restricted cash Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Including Disposal Group and Discontinued Operations ROU assets associated with finance leases Right-of-Use Asset Obtained in Exchange for Finance Lease Liability Investments Investments [Member] Ireland IRELAND Amortization related to contract costs Capitalized Contract Cost, Amortization Accumulated amortization Finite-Lived Intangible Assets, Accumulated Amortization Debt Covenant, Scenario 1 Debt Covenant, Scenario 1 [Member] Debt Covenant, Scenario 1 2027 Long-Term Debt, Maturity, Year Five Proceeds from sale of debt securities Proceeds from Sale of Debt Securities, Available-for-Sale Accumulated earnings Retained Earnings [Member] Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Total lease expense Lease, Cost Ordinary shares Common Stock [Member] Lease Balances Assets And Liabilities, Lessee [Table Text Block] Assets And Liabilities, Lessee [Table Text Block] Lease Expense and Cash Outflows from Operating and Finance Leases Lease, Cost [Table Text Block] Changes in operating assets and liabilities, net of the effects of acquisitions and dispositions Increase (Decrease) in Operating Capital Pax8 Pax8 [Member] Pax8 Statement [Table] Statement [Table] Classes of Assets and Liabilities Held for Sale Disposal Groups, Including Discontinued Operations [Table Text Block] Gain on sale of investment Equity Method Investment, Realized Gain (Loss) on Disposal Vendor Financing Obligation [Roll Forward] Vendor Financing Obligation [Roll Forward] Vendor Financing Obligation Long-term operating lease liabilities (notes $4 and 10) Long-term portion Operating Lease, Liability, Noncurrent Statistical Measurement [Axis] Statistical Measurement [Axis] Related Party Transaction [Axis] Related Party Transaction [Axis] Disposal Group Name [Axis] Disposal Group Name [Axis] Trade receivables, net Accounts Receivable, after Allowance for Credit Loss, Current Equity Components [Axis] Equity Components [Axis] Other Other Share-Based Incentive Awards [Member] Other Share-Based Incentive Awards [Member] Litigation Case [Domain] Litigation Case [Domain] U.K. UNITED KINGDOM Acquisitions and Dispositions [Abstract] Acquisitions and Dispositions [Abstract] Acquisitions and Dispositions [Abstract] Statement [Line Items] Statement [Line Items] Other than options outstanding (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number Total residential revenue Residential [Member] Residential [Member] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis] Non-operating income (expense) Nonoperating Income (Expense) Gross carrying amount Finite-Lived Intangible Assets, Gross Selling, general and administrative (SG&A) (note 13) Selling, General and Administrative Expense Performance-based incentive awards Performance-Based Incentive Awards [Member] Performance-Based Incentive Awards [Member] Operating asset Operating leases Operating Lease, Right-of-Use Asset Repurchases by Telenet of its outstanding shares Stock Repurchased During Period, Value Accumulated other comprehensive earnings, net of taxes AOCI Attributable to Parent [Member] Cash paid for interest: Interest Paid, Including Capitalized Interest, Operating and Investing Activities [Abstract] Finance lease, liability, current, statement of financial position [Extensible List] Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] Document Transition Report Document Transition Report Local Phone Number Local Phone Number Schedule of Stock Option Activity Share-Based Payment Arrangement, Option, Activity [Table Text Block] Operating income Operating Income (Loss) Cash and restricted cash contributed to the VMO2 JV in connection with the U.K. JV Transaction Payments For Deconsolidation Of Interest In Joint Venture Payments For Deconsolidation Of Interest In Joint Venture Recent Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Other operating (note 13) Other Cost and Expense, Operating Disposed of by sale Discontinued Operations, Disposed of by Sale [Member] Ownership percentage sold Disposal Group, Including Discontinued Operations, Ownership Percentage Sold Disposal Group, Including Discontinued Operations, Ownership Percentage Sold Income tax expense Discontinued Operation, Tax Effect of Discontinued Operation Switzerland Switzerland Segment [Member] Switzerland Segment [Member] Total liabilities Liabilities, Fair Value Disclosure Stock repurchased (in shares) Stock Repurchased During Period, Shares Equity Method Investee Equity Method Investee [Member] 2021 Ventures Incentive Plan 2021 Ventures Incentive Plan [Member] 2021 Ventures Incentive Plan Initial investment percent Alternative Investment, Measurement Input Adjustments to reconcile earnings from continuing operations to net cash provided by operating activities of continuing operations: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Finance lease, right-of-use asset, statement of financial position [Extensible List] Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Available to loan or distribute Financing Receivable, Available To Distribute Financing Receivable, Available To Distribute 2026 Lessee, Operating Lease, Liability, to be Paid, Year Four Condensed Consolidated Statement of Operations Income Statement [Abstract] Net cash paid for taxes: Income Taxes Paid, Net [Abstract] Additional paid-in capital Additional Paid-in Capital [Member] Document Fiscal Period Focus Document Fiscal Period Focus Percentage of legal and other third party, fees Percentage of Legal and Other Third Party, Fees Percentage of Legal and Other Third Party, Fees Unrecorded Purchase Obligation Unrecorded Unconditional Purchase Obligations Disclosure [Table Text Block] Basic earnings attributable to Liberty Global shareholders per share (note 14): Earnings Per Share, Basic [Abstract] Weighted average common shares (diluted EPS computation) (in shares) Weighted Average Number of Shares Outstanding, Diluted Derivative [Line Items] Derivative [Line Items] Atlas Edge JV Atlas Edge JV [Member] Atlas Edge JV Debt Securities, Available-for-sale [Line Items] Debt Securities, Available-for-Sale [Line Items] Other Other Subsidiaries [Member] Relating to Other Subsidiaries not otherwise identified. Summary of Assets and Liabilities Measured at Fair Value Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Operating Segments Operating Segments [Member] Short-term lease expense Short-Term Lease, Cost Principal payments on operating-related vendor financing Repayments Of Long Term Debt On Operating Financing From Vendors Repayments Of Long Term Debt On Operating Financing From Vendors Net earnings attributable to noncontrolling interests Net Income (Loss) Attributable to Noncontrolling Interest Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Foreign currency forward and option contracts Foreign currency forward and option contracts Foreign Exchange Forward [Member] Borrowings of debt Proceeds from Issuance of Long-Term Debt Equity Method Investments Equity Method Investments [Table Text Block] Common stock, issued (in shares) Common Stock, Shares, Issued Current liabilities of discontinued operations (note $4) Disposal Group, Including Discontinued Operation, Liabilities, Current Equity Equity Method Investments International rate differences Effective Income Tax Rate Reconciliation, Decrease in Foreign Income Tax Rate Differential, Amount Effective Income Tax Rate Reconciliation, Decrease in Foreign Income Tax Rate Differential, Amount Debt Covenant [Axis] Debt Covenant [Axis] Debt Covenant Held by Liberty Global employees: Employees [Member] Employees [Member] Foreign currency transaction gains, net Foreign currency transaction gains, net Foreign currency transaction gains, net Foreign Currency Transaction Gain (Loss), before Tax Current portion Finance Lease, Liability, Current Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Net cash provided (used) by investing activities Net Cash Provided by (Used in) Investing Activities Operating-related vendor financing additions Proceeds From Operating Related Vendor Financing Additions Proceeds From Operating Related Vendor Financing Additions Gain on disposal of discontinued operations, net of taxes Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax Debt instrument, face amount Debt Instrument, Face Amount Comprehensive earnings (loss) attributable to Liberty Global shareholders Comprehensive Income (Loss), Net of Tax, Attributable to Parent Litigation Case [Axis] Litigation Case [Axis] U.K. J.V. Entities U.K. J.V. Entities [Member] U.K. J.V. Entities Net cash provided (used) by investing activities of continuing operations Net Cash Provided by (Used in) Investing Activities, Continuing Operations Revenue and Operating Cash Flow by Segment Schedule of Segment Reporting Information, by Segment [Table Text Block] Entity Current Reporting Status Entity Current Reporting Status Total lease liabilities Lease, Liability Lease, Liability UPC Revolving Facility One UPC Revolving Facility One [Member] UPC Revolving Facility One Net earnings attributable to Liberty Global shareholders Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent 2023 Finance Lease, Liability, to be Paid, Year One Cross-currency and interest rate derivative contracts Cross Currency Interest Rate Contract [Member] Current portion of debt and finance lease obligations Disposal Group, Including Discontinued Operation, Debt and Capital Lease Obligations, Current Disposal Group, Including Discontinued Operation, Debt and Capital Lease Obligations, Current Vodafone Group Inc. Vodafone Group Inc. [Member] Vodafone Group Inc. Derivative [Table] Derivative [Table] Options outstanding (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number Schedule of Stock by Class [Table] Schedule of Stock by Class [Table] Pension-related adjustments and other Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, after Tax B2B Services B2B Services [Member] B2B Services [Member] Adjustments due to changes in subsidiaries’ equity and other, net Stockholders' Equity, Other 2024 Finance Lease, Liability, to be Paid, Year Two Continuing operations Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Continuing Operations Entities [Table] Entities [Table] 2023 Unrecorded Unconditional Purchase Obligation, to be Paid, Year One Title of Individual [Domain] Title of Individual [Domain] Finance lease, liability, noncurrent, statement of financial position [Extensible List] Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration] Telenet Telenet Telenet [Member] Telenet [Member] Aggregate Variable and Fixed Rate Indebtedness Aggregate Variable and Fixed Rate Indebtedness [Member] Aggregate Variable And Fixed Rate Indebtedness [Member] Total carrying amount of debt Long-Term Debt Other income, net Other income, net Other Nonoperating Income (Expense) ROU assets: Right-Of-Use Asset Obtained In Exchange For Lease Liability [Abstract] Right-Of-Use Asset Obtained In Exchange For Lease Liability [Abstract] Revenue by Major Category Revenue from External Customers by Products and Services [Table Text Block] Accumulated other comprehensive earnings (loss), net of taxes Accumulated Other Comprehensive Income (Loss), Net of Tax Co-venturer ownership percentage Equity Method Investment, Co-Venturer Ownership Percentage Equity Method Investment, Co-Venturer Ownership Percentage Class A Common Class A [Member] Total current assets Current assets Assets, Current Total Income Taxes Paid, Net Revenue recognized Contract with Customer, Liability, Revenue Recognized Entity Small Business Entity Small Business Minimum repurchase percentage Share Repurchase Program, Minimum Repurchase Requirement, Percentage Share Repurchase Program, Minimum Repurchase Requirement, Percentage Net carrying amount Finite-Lived Intangible Assets, Net Thereafter Unrecorded Unconditional Purchase Obligation, to be Paid, after Year Five Weighted average life Debt Securities, Available-for-Sale, Term Distributions by subsidiaries to noncontrolling interest owners (note 12) Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders Revenue, remaining performance obligation, period Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period Programming costs Programming and Copyright Costs Programming and Copyright Costs Property, Plant and Equipment, Type [Domain] Long-Lived Tangible Asset [Domain] Cash received from the sale of investments Proceeds from Sale, Maturity and Collection of Investments Consolidated Entities [Axis] Consolidated Entities [Axis] Notional amount due from counterparty Notional amount Due From Counterparty [Member] Due From Counterparty [Member] Dividends received from the VodafoneZiggo JV Proceeds from Equity Method Investment, Distribution Operating costs and expenses Costs and Expenses Net cash used by financing activities of discontinued operations Cash Provided by (Used in) Financing Activities, Discontinued Operations Debt Instrument [Line Items] Debt Instrument [Line Items] Class of Stock [Line Items] Class of Stock [Line Items] Operating leases Present value of lease payments Operating Lease, Liability Total payments Finance Lease, Liability, to be Paid Related party note receivable Receivable with Imputed Interest, Face Amount Maturities of Financing Lease Liabilities Finance Lease, Liability, Fiscal Year Maturity [Table Text Block] Gain (loss) on derivative instruments, net Realized and unrealized losses (gains) on derivative instruments, net Derivative, Gain (Loss) on Derivative, Net Amortized cost basis Debt Securities, Available-for-Sale, Amortized Cost Other comprehensive earnings (loss) from discontinued operations (note 4) Other Comprehensive Income (Loss), Net of Tax, Discontinued Operations Other Comprehensive Income (Loss), Net of Tax, Discontinued Operations 2026 Long-Term Debt, Maturity, Year Four Write off deferred financing costs Write off of Deferred Debt Issuance Cost Entity Filer Category Entity Filer Category Equity (note 12): Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Other Other Debt [Member] Other Debt [Member] Share-based compensation expense Share-Based Payment Arrangement, Expense Commitments and contingencies (notes 6, 9, 10, 11 and 15) Commitments and Contingencies Security Exchange Name Security Exchange Name Options outstanding, weighted average exercise or base price (in dollars per shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price Percent of remaining results of operations included in investment Percent of Remaining Results of Operations Included in Income (Loss) from Equity Method Investments Percent of Remaining Results of Operations Included in Income (Loss) from Equity Method Investments Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Contractual maturity: Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling Maturity, Fair Value [Abstract] Total fair value of the net assets of the VMO2 JV Net Assets Current assets of discontinued operations (note 4) Current assets Disposal Group, Including Discontinued Operation, Assets, Current Revenue (notes 3, 4, 5 and 16) Revenue from Contract with Customer, Excluding Assessed Tax Operating income Disposal Group, Including Discontinued Operation, Operating Income (Loss) SARs Stock Appreciation Rights (SARs) [Member] Cover [Abstract] Cover [Abstract] EdgeConneX Inc. (EdgeConneX) EdgeConneX Inc. [Member] EdgeConneX Inc. Depreciation and amortization Depreciation and amortization Depreciation, Depletion and Amortization, Nonproduction VM Ireland Credit Facility VM Ireland Credit Facility [Member] VM Ireland Credit Facility 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] 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 Weighted average discount rate, for finance leases Finance Lease, Weighted Average Discount Rate, Percent Revenue Recognition and Related Costs Revenue from Contract with Customer [Text Block] Current Derivative Asset, Current Total liabilities and equity Liabilities and Equity Vendor financing Vendor Financing [Member] Vendor Financing [Member] Slovakia SLOVAKIA Long-term Debt, Type [Axis] Long-Term Debt, Type [Axis] Remaining authorized for share repurchases Stock Repurchase Program, Remaining Authorized Repurchase Amount Less: present value discount Lessee, Operating Lease, Liability, Undiscounted Excess Amount Diluted earnings attributable to Liberty Global shareholders per share (in USD per share) Earnings Per Share, Diluted Programming commitments Programming Commitments [Member] Programming Commitments [Member] Percentage of ownership interest Noncontrolling Interest, Ownership Percentage by Parent Consolidation Items [Axis] Consolidation Items [Axis] Continuing operations Interest Paid, Continuing Operations Interest Paid, Continuing Operations 2024 Lessee, Operating Lease, Liability, to be Paid, Year Two Other current assets (notes 3, 5 and 6) Other Assets, Current Unrecognized tax benefits Unrecognized Tax Benefits Long-term investments at fair value Equity Securities, FV-NI and without Readily Determinable Fair Value 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 Other comprehensive earnings (loss) from continuing operations Other Comprehensive Income (Loss), Net of Tax, Continuing Operations Other Comprehensive Income (Loss), Net of Tax, Continuing Operations Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Corporate debt securities Corporate Debt Securities [Member] Due from related party Due from Related Parties Discontinued operations Earnings from discontinued operations Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest Maturities of Operating Lease Liabilities Lessee, Operating Lease, Liability, Maturity [Table Text Block] Entity Address, Address Line Two Entity Address, Address Line Two Entity Address, Address Line One Entity Address, Address Line One Deferred revenue Contract with Customer, Liability Product and Service [Axis] Product and Service [Axis] Discontinued operations Interest Paid, Discontinued Operations Class of Stock [Domain] Class of Stock [Domain] Interest expense Interest expense Interest Expense 2022 Ventures Incentive Plan 2022 Ventures Incentive Plan [Member] 2022 Ventures Incentive Plan UPC Austria UPC Austria [Member] UPC Austria [Member] Summary Of Vendor Financing Obligations Schedule of Long-Term Debt Instruments [Table Text Block] 2025 Unrecorded Unconditional Purchase Obligation, to be Paid, Year Three 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 Fixed-line telephony Cable Fixed-line Telephony Subscription [Member] Cable Fixed-line Telephony Subscription [Member] Revenue from Contract with Customer [Abstract] Revenue from Contract with Customer [Abstract] Interest accrued Increase (Decrease) in Accrued Interest Receivable, Net Property and equipment gross Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, before Accumulated Depreciation and Amortization Operating cash outflows from finance leases (interest component) Finance Lease, Interest Payment on Liability Aviatrix Systems, Inc. Aviatrix Systems, Inc. [Member] Aviatrix Systems, Inc. Commercial paper Commercial Paper [Member] VodafoneZiggo JV VodafoneZiggo JV and VMED O2 JV [Member] VodafoneZiggo JV and VMED O2 JV UPC SPE Notes UPCB SPE Notes [Member] UPCB SPE Notes [Member] Other assets, net Disposal Group, Including Discontinued Operation, Other Assets, Noncurrent Other accrued and current liabilities (notes $4 and 10) Other Accrued Liabilities, Current Long-term Debt, Type [Domain] Long-Term Debt, Type [Domain] Other debt securities Other Debt Obligations [Member] Subscription revenue Mobile Subscription [Member] Mobile Subscription [Member] Ireland Ireland [Member] Ireland Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Percentage of net present value, cost savings Percentage of Net Present Value, Cost Savings Percentage of Net Present Value, Cost Savings Beginning balance of net assets Ending balance of net assets Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value Computed “expected” tax (expense) Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount Cash flows from financing activities: Net Cash Provided by (Used in) Financing Activities [Abstract] Details of end of period cash and cash equivalents and restricted cash: Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Including Disposal Group and Discontinued Operations [Abstract] Less: present value discount Finance Lease, Liability, Undiscounted Excess Amount Gain (loss) in changes in the credit risk valuation adjustments associated with our cross-currency and interest rate derivative contracts Gain Loss On Credit Risk Derivatives Net Recognized In Earnings Gain Loss On Credit Risk Derivatives Net Recognized In Earnings Disposal Group Classification [Domain] Disposal Group Classification [Domain] Cash received in connection with the sale of UPC Poland Proceeds from Divestiture of Businesses, Net of Cash Divested Net earnings from continuing operations attributable to noncontrolling interests Income (Loss) from Continuing Operations, Net of Tax, Attributable to Noncontrolling Interest Long-term Derivative Liability, Noncurrent