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related to derivative instruments Financing activities Payments for (Proceeds from) Derivative Instrument, Financing Activities Document Period End Date Document Period End Date Adoption Date Trading Arrangement Adoption Date Long-term portion Finance Lease, Liability, Noncurrent Weighted average discount rate, for finance leases Finance Lease, Weighted Average Discount Rate, Percent Treasury shares, at cost Treasury Stock, Common [Member] Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Loss contingency accrual Loss Contingency Accrual Equity-related derivative instruments Equity-related derivative instruments Equity-Related Derivative Instruments [Member] Equity-Related Derivative Instruments [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 Loss Contingency Nature [Axis] Loss Contingency Nature [Axis] Income tax expense (note 11) Total income tax expense Income tax expense Income Tax Expense (Benefit) Total ROU assets Lease Asset Lease Asset Finance leases Finance Lease, Right-of-Use Asset, after Accumulated Amortization Fair Value Measurements Fair Value Disclosures [Text Block] Telefonica Telefónica [Member] Telefónica Equity [Abstract] Equity [Abstract] Debt Securities, Available-for-sale [Line Items] Debt Securities, Available-for-Sale [Line Items] Discontinued operations Interest Paid, Discontinued Operations Weighted average remaining lease term for operating leases Operating Lease, Weighted Average Remaining Lease Term Percentage of share based compensation expense Equity Method Investment, Percentage Of Share Based Compensation Expense Equity Method Investment, Percentage Of Share Based Compensation Expense Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Cross-Currency Swap 3 Cross-Currency Swap 3 [Member] Cross-Currency Swap 3 [Member] Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Cash paid in connection with acquisitions, net of cash acquired Payments to Acquire Businesses, Net of Cash Acquired Comprehensive earnings (loss) Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Term of transitional services Disposal Group, Term of Transitional Services Disposal Group, Term of Transitional Services Credit Facility [Domain] Credit Facility [Domain] Basis spread on variable rate Debt Instrument, Basis Spread on Variable Rate Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Damages sought Loss Contingency, Damages Sought, Value Telenet Tower Lease Agreement Telenet Tower Lease Agreement [Member] Telenet Tower Lease Agreement Derivative Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration] Derivative Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration] ROU assets associated with finance leases Right-of-Use Asset Obtained in Exchange for Finance Lease Liability Less: present value discount Finance Lease, Liability, Undiscounted Excess Amount Revenue Recognition and Related Costs Revenue from Contract with Customer [Text Block] Additional paid-in capital Additional Paid-in Capital [Member] 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 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 Share of results of affiliates, net (note 5) Share of results of affiliates, net Equity method investment Income (Loss) from Equity Method Investments Loss Contingencies [Line Items] Loss Contingencies [Line Items] VodafoneZiggo JV Receivable I VodafoneZiggo JV Receivable I [Member] VodafoneZiggo JV Receivable I Cover [Abstract] Cover [Abstract] VodafoneZiggo JV VodafoneZiggo JV [Member] VodafoneZiggo JV [Member] Subsequent Event Subsequent Events [Text Block] Tax Period [Axis] Tax Period [Axis] Floor rate Debt Instrument, Floor Interest Rate Debt Instrument, Floor Interest Rate Number of common shares acquired (in shares) Business Acquisition, Equity Interest Acquired, Number of Shares Business Acquisition, Equity Interest Acquired, Number of Shares Other long-term liabilities (notes 3 and 6) Other Liabilities, Noncurrent Debt Instrument, Period [Axis] Debt Instrument, Period [Axis] Debt Instrument, Period Term of leases Total payments Lessee, Operating Lease, Liability, to be Paid Short-term investments (measured at fair value on a recurring basis) (note 5) Short-term investments Short-Term Investments Additions Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases Aggregate purchase price Asset Acquisition, Consideration Transferred Depreciation and amortization Finance Lease, Right-of-Use Asset, Amortization Segment Reporting Segment Reporting Disclosure [Text Block] Total Net increase (decrease) Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Secured Debt Secured Debt [Member] Equity Component [Domain] Equity Component [Domain] Current portion Finance Lease, Liability, Current Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Pension-related adjustments and other Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, after Tax Entity Current Reporting Status Entity Current Reporting Status Operating income (loss) Operating income (loss) Operating Income (Loss) Gains included in earnings from continuing operations Fair Value, Assets and Liabilities Measured on Recurring Basis, Gain (Loss) Included in Earnings [Abstract] Consolidated Entities [Domain] Consolidated Entities [Domain] Liberty Global Belgium Holding B.V. Liberty Global Belgium Holding B.V. [Member] Liberty Global Belgium Holding B.V. Slovakia SLOVAKIA Segments [Axis] Segments [Axis] Other comprehensive earnings (loss), net of taxes: Other Comprehensive Income (Loss), Net of Tax [Abstract] Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Interkabel Acquisition Interkabel Acquisition [Member] Interkabel Acquisition [Member] Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Customer relationships Customer Relationships [Member] Equity-related derivative instruments Equity Contract [Member] Equity (note 12): Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Change in Accounting Principle, Type [Axis] Change in Accounting Principle, Type [Axis] Consolidated Entities [Axis] Consolidated Entities [Axis] Variable Rate [Domain] Variable Rate [Domain] Total property and equipment additions Property, Plant and Equipment, Additions Net loss (earnings) attributable to noncontrolling interests Net Income (Loss) Attributable to Noncontrolling Interest Pay vs Performance Disclosure [Line Items] Other, including intersegment eliminations Geography Eliminations [Member] Statistical Measurement [Domain] Statistical Measurement [Domain] Underlying Security Market Price Change Underlying Security Market Price Change, Percent Internally Developed Software Treatment Internally Developed Software Treatment [Member] Internally Developed Software Treatment Other than options outstanding (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number Debt Debt Disclosure [Text Block] Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] VM Ireland VM Ireland [Member] VM Ireland Repayments and repurchases of debt and finance lease obligations: Repayments And Repurchases Of Debt And Finance Lease Obligations [Abstract] Repayments And Repurchases Of Debt And Finance Lease Obligations Cross-currency and interest rate derivative contracts Cross-currency and interest rate derivative contracts Cross Currency Interest Rate Contract [Member] Continuing operations Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Continuing Operations Revenue from transitional services Revenue From Transitional Services Revenue From Transitional Services Equity Method Investments and Joint Ventures [Abstract] MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] Total debt maturities Long-term Debt, Gross Contractual Maturities Long-term Debt, Gross Contractual Maturities Segment Reporting [Abstract] Segment Reporting [Abstract] Accounts payable Accounts Payable, Current Restatement Determination Date: Restatement Determination Date [Axis] Investment, Name [Axis] Investment, Name [Axis] Non-subscription revenue Cable Non-Subscription [Member] Cable Non-Subscription [Member] Corporate debt securities Corporate Debt Securities [Member] Purchase commitments Purchase Commitments [Member] Purchase Commitments [Member] Non-operating income (expense) Nonoperating Income (Expense) Lacework, Inc. (Lacework) Lacework Lacework Inc. [Member] Lacework Inc. Commitments and contingencies (notes 6, 9, 10, 11 and 15) Commitments and Contingencies Operating leases Lessee, Operating Lease, Liability, to be Paid, Fiscal Year Maturity [Abstract] 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. Number of shares purchased (in shares) Asset Acquisition, Number Of Shares Purchased Asset Acquisition, Number Of Shares Purchased nexfibre JV nexfibre JV nexfibre JV [Member] nexfibre JV Schedule of Goodwill [Table] Schedule of Goodwill [Table] Geographical [Axis] Geographical [Axis] Income Taxes Income Tax Disclosure [Text Block] JV Services JV Services [Member] JV Services [Member] Property and equipment gross Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, before Accumulated Depreciation and Amortization Leases Lessee, Leases [Policy Text Block] Realized net losses Debt Securities, Realized Gain (Loss) Net cash used by investing activities of discontinued operations Cash Provided by (Used in) Investing Activities, Discontinued Operations Class A and Class C Common Class A and Common Class C [Member] Common Class A and Common Class C Change in valuation allowances Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount Business Acquisition [Line Items] Business Acquisition [Line Items] PEO Total Compensation Amount PEO Total Compensation Amount Schedule of Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] Goodwill [Roll Forward] Goodwill [Roll Forward] Number of common shares owned (in shares) Business Acquisition, Cumulative Number of Voting Interests Acquired, Shares Business Acquisition, Cumulative Number of Voting Interests Acquired, Shares Share price (in euro per share) Business Acquisition, Share Price Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Treasury stock (shares) Treasury Stock, Common, Shares Significant unobservable inputs (Level 3) Fair Value, Inputs, Level 3 [Member] Other revenue Other Category [Member] Other Category [Member] Options outstanding (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number Interest accrued Increase (Decrease) in Accrued Interest Receivable, Net Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount Total investments Investments, Fair Value Disclosure Estimated fair value Long-Term Debt, Fair Value Net earnings (loss) attributable to Liberty Global shareholders Net Income (Loss) Net Income (Loss) Remainder of 2023 Unrecorded Unconditional Purchase Obligation, to be Paid, Remainder of Fiscal Year Total current liabilities Liabilities, Current Unrecorded Unconditional Purchase Obligation [Line Items] Unrecorded Unconditional Purchase Obligation [Line Items] Televisa Univision, Inc. (Televisa Univision) Televisa Univision Televisa Univision Holdings Inc [Member] Televisa Univision Holdings Inc Derivative Contract [Domain] Derivative Contract [Domain] Voting interests acquired (percent) Business Acquisition, Threshold Percentage of Voting Interests Acquired for Mandatory Offer Reopening Business Acquisition, Threshold Percentage of Voting Interests Acquired for Mandatory Offer Reopening 2025 Finance Lease, Liability, to be Paid, Year Two Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] Company Selected Measure Name Company Selected Measure Name Leases Lessee, Operating Leases [Text Block] Property and equipment, net (notes 8 and 10) Total property and equipment, net Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization LIABILITIES AND EQUITY Liabilities and Equity [Abstract] Assets acquired under finance leases Lease Obligation Incurred Repurchases by Telenet of its outstanding shares Stock Repurchased During Period, Value Programming and other direct costs of services (note 10) Cost of Goods and Services Sold Income Tax Contingency [Table] Income Tax Contingency [Table] Mobile Services Mobile Services [Member] Mobile Services [Member] Cash received in connection with the Telenet Tower Sale Proceeds from Sale of Productive Assets Class B Common Class B [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 Foreign currency forward and option contracts Foreign Exchange Contract [Member] Name Measure Name Name Forgone Recovery, Individual Name Share price (in euro per share) Business Acquisition, Share Price, Gross Business Acquisition, Share Price, Gross 2026 Unrecorded Unconditional Purchase Obligation, to be Paid, Year Three Goodwill (note 8) Goodwill beginning balance Goodwill ending balance Goodwill Revenue Disposal Group, Including Discontinued Operation, Revenue Telenet Overdraft Facility Telenet Overdraft Facility [Member] Telenet Overdraft Facility [Member] Asset acquisition, collar premium Asset Acquisition, Collar Premium Asset Acquisition, Collar Premium Underlying Securities Award Underlying Securities Amount UPC Poland UPC Poland [Member] UPC Poland Net cash paid for taxes: Income Taxes Paid, Net [Abstract] UPC Holding Senior Notes UPC Holding Senior Notes Debt [Member] UPC Holding Senior Notes Debt [Member] Operating-related vendor financing additions Long Term Debt, Operating Related Additions Long Term Debt, Operating Related Additions Subsidiaries Subsidiaries [Member] SG&A expense Selling, General and Administrative Expenses [Member] 2023 (remainder of year) Long-Term Debt, Maturity, Remainder of Fiscal Year Broadband internet Cable Broadband Internet Subscription [Member] Cable Broadband Internet Subscription [Member] Net Investment Income [Line Items] Net Investment Income [Line Items] Net cash used by financing activities of discontinued operations Cash Provided by (Used in) Financing Activities, Discontinued Operations Long-term operating lease liabilities (note 10) Long-term portion Operating Lease, Liability, Noncurrent Income Tax Contingency Income Tax Contingency [Member] Income Tax Contingency Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Reclassification adjustments included in net earnings (loss) Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax Income Statement Location [Axis] Income Statement Location [Axis] Debt Covenant [Domain] Debt Covenant [Domain] Debt Covenant [Domain] 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] Deferred financing costs, discounts and premiums, net Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net Maturities of Operating Lease Liabilities Lessee, Operating Lease, Liability, to be Paid, Maturity [Table Text Block] Foreign currency forward and option contracts Foreign currency forward and option contracts Foreign Exchange Forward [Member] All3Media Ltd. (All3Media) All3Media All3Media [Member] All3Media [Member] Product and Service [Domain] Product and Service [Domain] Other Performance Measure, Amount Other Performance Measure, Amount Lease Expense and Cash Outflows from Operating and Finance Leases Lease, Cost [Table Text Block] Cash flows from investing activities: Net Cash Provided by (Used in) Investing Activities [Abstract] Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative Instruments and Hedging Activities Disclosure [Abstract] Plan Name [Domain] Plan Name [Domain] Interest expense Interest expense Interest Expense Trading Arrangement: Trading Arrangement [Axis] Belgium Belgium Segment [Member] Belgium Segment [Member] Other commitments Other Commitments [Member] Other Commitments [Member] Long-term Debt, Type [Domain] Long-Term Debt, Type [Domain] Entity File Number Entity File Number Loss Contingencies [Table] Loss Contingencies [Table] Debt instrument, unamortized discount Debt Instrument, Unamortized Discount Thereafter Lessee, Operating Lease, Liability, to be Paid, after Year Five 2026 Long-Term Debt, Maturity, Year Three Unused borrowing capacity, amount under covenant Debt Instrument, Unused Borrowing Capacity Amount, Under Covenants Debt Instrument, Unused Borrowing Capacity Amount, Under Covenants Telenet Revolving Facility Telenet Revolving Facility [Member] Telenet Revolving Facility [Member] Entity Shell Company Entity Shell Company Investments and related notes receivable (including $3,399.3 million and $2,271.4 million, respectively, measured at fair value on a recurring basis) (note 5) Long-term investments Long-Term Investments Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Restatement Determination Date Restatement Determination Date Other operating expense Other Operating Income (Expense) [Member] Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Increase (decrease) to property and equipment additions Increase (Decrease) to Property and Equipment Additions Increase (Decrease) to Property and Equipment Additions Investments and receivables at fair value Investments And Related Notes Receivable, Fair Value Disclosure Investments And Related Notes Receivable, Fair Value Disclosure Total B2B revenue Business to Business [Member] Business to Business [Member] Variable lease expense Variable Lease, Cost Operating lease expense Operating Lease, Cost Common stock, issued (in shares) Common Stock, Shares, Issued Cash received from the sale of investments Proceeds from Sale, Maturity and Collection of Investments Country Region Country Region Current portion of debt and finance lease obligations Long-Term Debt and Lease Obligation, Current Treasury shares, at cost Treasury Stock, Common, Value Total carrying amount of debt Long-Term Debt Total assets Assets, Fair Value Disclosure Total finance lease expense Finance Lease, Cost Finance Lease, Cost 2027 Long-Term Debt, Maturity, Year Four Class A Common Class A [Member] Other financing activities, net Proceeds from (Payments for) Other Financing Activities Long-lived Assets Long Lived Assets Disclosure [Text Block] The entire disclosure for long-lived assets. Comprehensive earnings (loss) attributable to Liberty Global shareholders Comprehensive Income (Loss), Net of Tax, Attributable to Parent Subscription revenue Business to Business Subscription [Member] Business to Business Subscription [Member] Short-term lease expense Short-Term Lease, Cost Entity Address, Address Line One Entity Address, Address Line One Entity Address, Address Line Two Entity Address, Address Line Two Held by former Liberty Global employees Former Employees [Member] Former Employees [Member] Schedule of Investments by Accounting Method Schedule of Investments by Accounting Method [Table Text Block] Schedule of Investments by Accounting Method [Table Text Block] Subsequent Event [Table] Subsequent Event [Table] Percentage of ownership interest Subsidiary, Ownership Percentage, Parent Derivative Asset, Noncurrent, Statement of Financial Position [Extensible Enumeration] Derivative Asset, Noncurrent, Statement of Financial Position [Extensible Enumeration] 2024 Finance Lease, Liability, to be Paid, Year One Vodafone Collar Loan Vodafone Collar Loan [Member] Vodafone Collar Loan 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 Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Subsequent Event Subsequent Event [Member] Percentage ownership in subsidiary Subsidiary or Equity Method Investee, Cumulative Percentage Ownership after All Transactions NetCo NetCo [Member] NetCo Schedule of Intangible Assets Subject to Amortization, Net Schedule of Finite-Lived Intangible Assets [Table Text Block] Condensed Consolidated Statement of Operations Income Statement [Abstract] Schedule of Investments [Line Items] Schedule of Investments [Line Items] Stock issued during period, shares, new issues Stock Issued During Period, Shares, New Issues VMO2 JV VMEO2 JV [Member] VMEO2 JV 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 Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Total Derivative instruments Derivative Liability Vodafone - subject to re-use rights Vodafone Vodafone [Member] Vodafone 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] Other current assets (notes 3 and 5) Other assets, current Other Assets, Current Class of Stock [Line Items] Class of Stock [Line Items] Computed “expected” tax benefit (expense) Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount Diluted earnings (loss) attributable to Liberty Global shareholders per share (note 14): Earnings Per Share, Diluted [Abstract] Equity Equity Method Investments Amortization related to contract costs Capitalized Contract Cost, Amortization Lessee Leasing Arrangement [Domain] Lessee Leasing Arrangement [Domain] Lessee Leasing Arrangement [Domain] Financial Instrument [Axis] Financial Instrument [Axis] Debt and Lease Obligation [Abstract] Debt and Lease Obligation [Abstract] Total Shareholder Return Amount Total Shareholder Return Amount Cash and cash equivalents and restricted cash: Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents [Abstract] Repurchases of Liberty Global ordinary shares Payments for Repurchase of Common Stock Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Acquisitions and Dispositions Mergers, Acquisitions and Dispositions Disclosures [Text Block] Total Liberty Global shareholders Parent [Member] Segments [Domain] Segments [Domain] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Consolidation Items [Domain] Consolidation Items [Domain] Debt Covenant, Scenario 1 Debt Covenant, Scenario 1 [Member] Debt Covenant, Scenario 1 Accumulated earnings Retained Earnings (Accumulated Deficit) Debt instrument, face amount Debt Instrument, Face Amount Lease Balances Assets And Liabilities, Lessee [Table Text Block] Assets And Liabilities, Lessee [Table Text Block] Current assets: Assets, Current [Abstract] Leases [Abstract] Leases [Abstract] Equity Method Investment, Nonconsolidated Investee [Domain] Equity Method Investment, Nonconsolidated Investee [Domain] Pax8, Inc. Pax8 [Member] Pax8 Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] Total payments Finance Lease, Liability, to be Paid Cash flows from operating activities: Net Cash Provided by (Used in) Operating Activities [Abstract] Continuing operations (in USD per share) Income (Loss) from Continuing Operations, Per Basic Share Vendor Financing Obligation [Roll Forward] Vendor Financing Obligation [Roll Forward] Vendor Financing Obligation Disposal Group Name [Domain] Disposal Group Name [Domain] Basic earnings (loss) attributable to Liberty Global shareholders per share (note 14): Earnings Per Share, Basic [Abstract] Earnings (loss) from continuing operations Earnings (loss) from continuing operations Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest Other Other Share-Based Incentive Awards [Member] Other Share-Based Incentive Awards [Member] Cumulative foreign currency translation gain (loss) Disposal Group, Including Discontinued Operation, Foreign Currency Translation Gains (Losses) Class of Stock [Domain] Class of Stock [Domain] Other, net Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount Acquisitions and Dispositions [Abstract] Acquisitions and Dispositions [Abstract] Acquisitions and Dispositions [Abstract] Average purchase price per share (in dollars per share) Asset Acquisition, Shares Purchased, Average Purchase Price Per Share Asset Acquisition, Shares Purchased, Average Purchase Price Per Share Number of subsidiaries with the most outstanding debt Number Of Subsidiaries With The Most Outstanding Debt Number Of Subsidiaries With The Most Outstanding Debt Total residential revenue Residential [Member] Residential [Member] Operating leases Present value of lease payments Operating Lease, Liability Other Other Stock Plan [Member] Other Stock Plan Performance-based incentive awards Performance-Based Incentive Awards [Member] Performance-Based Incentive Awards [Member] Basis of Presentation Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] Other Other Other Contract [Member] Total enterprise value Disposal Group, Including Discontinued Operation, Consideration Accumulated other comprehensive earnings (loss), net of taxes AOCI Attributable to Parent [Member] Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount VodafoneZiggo JV VodafoneZiggo JV and VMO2 JV [Member] VodafoneZiggo JV and VMO2 JV Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis] All Executive Categories All Executive Categories [Member] Disposal Groups, Including Discontinued Operations [Table] Disposal Groups, Including Discontinued Operations [Table] Plan Name [Axis] Plan Name [Axis] Debt Disclosure [Abstract] Debt Disclosure [Abstract] Earnings Per Share [Abstract] Earnings Per Share [Abstract] Ownership percentage sold Disposal Group, Including Discontinued Operations, Ownership Percentage Sold Disposal Group, Including Discontinued Operations, Ownership Percentage Sold Common stock Common Stock, Value, Issued Second year from the Closing Date Debt Instrument, Period Two [Member] Debt Instrument, Period Two Total Unrecorded Unconditional Purchase Obligation Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] Switzerland Switzerland Segment [Member] Switzerland Segment [Member] Number of associations of municipalities Number Of Associations Of Municipalities Number Of Associations Of Municipalities Schedule Of Realized And Unrealized Gains On Derivative Instruments Schedule Of Realized And Unrealized Gains On Derivative Instruments [Table Text Block] Schedule Of Realized And Unrealized Gains On Derivative Instruments Available to loan or distribute Financing Receivable, Available To Distribute Financing Receivable, Available To Distribute Intangible assets subject to amortization, net (note 8) Other Intangible Assets, Net Principal payments on finance leases Financing cash outflows from finance leases (principal component) Finance Lease, Principal Payments Maturities of Financing Lease Liabilities Finance Lease, Liability, to be Paid, Maturity [Table Text Block] Revenue from Contract with Customer [Abstract] Revenue from Contract with Customer [Abstract] All Individuals All Individuals [Member] Percentage of legal and other third party, fees Percentage of Legal and Other Third Party, Fees Percentage of Legal and Other Third Party, Fees Litigation Case [Domain] Litigation Case [Domain] Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List] Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Other income, net Other income, net Other Nonoperating Income (Expense) Entity Filer Category Entity Filer Category Schedule of Equity Method Investments [Line Items] Schedule of Equity Method Investments [Line Items] AtlasEdge JV AtlasEdge JV AtlasEdge JV [Member] AtlasEdge JV Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Statement [Table] Statement [Table] Current Fiscal Year End Date Current Fiscal Year End Date Income Tax Expense Reconciliation Table Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Unrecognized tax benefits Unrecognized Tax Benefits PEO Name PEO Name Fair Value, by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] Accrued Income Taxes [Abstract] Accrued Income Taxes [Abstract] Schedule of Changes in Carrying Amount of Goodwill Schedule of Goodwill [Table Text Block] Other Other Subsidiaries [Member] Relating to Other Subsidiaries not otherwise identified. Telenet Revolving Credit Facility B Telenet Revolving Credit Facility B [Member] Telenet Revolving Credit Facility B Short-term, separately-managed accounts (SMAs) Debt Securities, Available-for-Sale, Current Other accrued and current liabilities (note 10) Other Accrued Liabilities, Current Central and Other Corporate, Non-Segment [Member] Principal payments on operating-related vendor financing 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 Stated interest percentage Debt Instrument, Interest Rate, Stated Percentage Condensed Consolidated Balance Sheet Statement of Financial Position [Abstract] Total Liberty Global shareholders Equity, Attributable to Parent UTB that would impact effective tax rate Unrecognized Tax Benefits that Would Impact Effective Tax Rate 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 Schedule of Finite-Lived Intangible Assets by Major Class [Table] Schedule of Finite-Lived Intangible Assets [Table] Held by Liberty Global employees: Employees [Member] Employees [Member] Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Schedule of Stock by Class [Table] Schedule of Stock by Class [Table] Percent of total number of shares outstanding Stock Repurchase Program, Percent Of Total Number Of Shares Outstanding Stock Repurchase Program, Percent Of Total Number Of Shares Outstanding Operating-related vendor financing additions Proceeds From Operating Related Vendor Financing Additions Proceeds From Operating Related Vendor Financing Additions Subsequent Events [Abstract] Earnings (loss) from continuing operations before income taxes Earnings (loss) before income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest 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] Total lease liabilities Lease, Liability Lease, Liability Significant other observable inputs (Level 2) Fair Value, Inputs, Level 2 [Member] UPC Revolving Facility One UPC Revolving Facility One [Member] UPC Revolving Facility One Excess of carrying amount over proportional share in investees net assets Equity Method Investment, Difference Between Carrying Amount and Underlying Equity Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table] Unrecorded Unconditional Purchase Obligation [Table] Unrecorded Unconditional Purchase Obligation [Table] Capital expenditures, net Payments to Acquire Productive Assets Disposal Group Classification [Domain] Disposal Group Classification [Domain] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Net loss (earnings) from continuing operations attributable to noncontrolling interests Income (Loss) from Continuing Operations, Net of Tax, Attributable to Noncontrolling Interest Vodafone Group Inc. Vodafone Group Inc. [Member] Vodafone Group Inc. Document Fiscal Period Focus Document Fiscal Period Focus 2027 Lessee, Operating Lease, Liability, to be Paid, Year Four 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 Share-based compensation expense Share-Based Payment Arrangement, Noncash Expense Weighted Average Weighted Average [Member] Schedule of Long-Lived Assets by Geographic Segments Revenue from External Customers by Geographic Areas [Table Text Block] B2B Services B2B Services [Member] B2B Services [Member] Third year from the Closing Date Debt Instrument, Period Three [Member] Debt Instrument, Period Three City Area Code City Area Code Product and Service [Axis] Product and Service [Axis] Earnings (Loss) per Share Earnings Per Share [Text Block] Finance Lease, Liability, Statement of Financial Position [Extensible Enumeration] Finance Lease, Liability, Statement of Financial Position [Extensible Enumeration] Ownership percentage Equity Method Investment, Ownership Percentage Document Fiscal Year Focus Document Fiscal Year Focus Geographical [Domain] Geographical [Domain] Term of contract Lessee, Operating Lease, Term of Contract 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] ROU assets: Right-Of-Use Asset Obtained In Exchange For Lease Liability [Abstract] Right-Of-Use Asset Obtained In Exchange For Lease Liability [Abstract] 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 Stock Option Activity Share-Based Payment Arrangement, Option, Activity [Table Text Block] Exercise Price Award Exercise Price Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Co-venturer ownership percentage Equity Method Investment, Co-Venturer Ownership Percentage Equity Method Investment, Co-Venturer Ownership Percentage Total liabilities Liabilities, Fair Value Disclosure Liabilities Derivative Liability [Abstract] Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List] Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Net earnings (loss) Net earnings (loss) Net earnings Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Total Income Taxes Paid, Net Discontinued operations Earnings from discontinued operations Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest Foreign currency translation adjustments Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax SMAs SMAs [Member] SMAs Summary of Stock-Based Compensation Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block] Total liabilities and equity Liabilities and Equity Amortized cost basis Debt Securities, Available-for-Sale, Amortized Cost Schedule of Unrecorded Purchase Obligation Unrecorded Unconditional Purchase Obligations Disclosure [Table Text Block] Other assets, net (notes 3, 6 and 10) Other Assets, Noncurrent Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Ownership [Domain] Ownership [Domain] VMO2 JV VMO2 JV [Member] VMO2 JV Operating leases Operating Lease, Right-of-Use Asset Long-term investments at fair value Equity Securities, FV-NI and without Readily Determinable Fair Value Schedule of Long-term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] Programming costs Programming and Copyright Costs Programming and Copyright Costs Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] 2023 (remainder of year) Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year Arrangement Duration Trading Arrangement Duration Earnings before income taxes Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax Entity Address, City or Town Entity Address, City or Town Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Related Party Related Party [Member] Revenue and Operating Cash Flow by Segment Schedule of Segment Reporting Information, by Segment [Table Text Block] Notional amount due from counterparty Pays fixed rate Due From Counterparty [Member] Due From Counterparty [Member] Class C Common Class C [Member] Stock repurchase, remaining authorized amount Stock Repurchase Program, Remaining Authorized Repurchase Amount Termination Date Trading Arrangement Termination Date Change in Accounting Principle, Type [Domain] Change in Accounting Principle, Type [Domain] Fair value Fair value SMAs Debt Securities, Available-for-Sale Other comprehensive loss from discontinued operations (note 4) Other Comprehensive Income (Loss), Net of Tax, Discontinued Operations Other Comprehensive Income (Loss), Net of Tax, Discontinued Operations Adjustments to reconcile earnings (loss) 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] Derivative [Line Items] Derivative [Line Items] Award Timing Disclosures [Line Items] Title of Individual [Domain] Title of Individual [Domain] Other Other Debt [Member] Other Debt [Member] Comprehensive loss (earnings) attributable to noncontrolling interests Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Gain on Telenet Tower Sale Gain (Loss) on Investments Additional paid-in capital Additional Paid in Capital 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 Unused borrowing capacity, amount Debt Instrument, Unused Borrowing Capacity, Amount Current portion of debt and finance lease obligations (notes 9 and 10) Debt, Current Government bonds Municipal Bonds [Member] Insider Trading Arrangements [Line Items] Gain on disposal of discontinued operations, net of taxes Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax EdgeConneX, Inc. (EdgeConneX) EdgeConneX EdgeConneX Inc. [Member] EdgeConneX Inc. Stock repurchase, remaining authorized amount (in shares) Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased VM Ireland Credit Facility VM Ireland Credit Facility [Member] VM Ireland Credit Facility Related Party [Axis] Related Party, Type [Axis] Cash received in connection with the sale of UPC Poland Proceeds from Divestiture of Businesses, Net of Cash Divested Adjusted EBITDA Adjusted Earnings Before Interest, Taxes, Depreciation, And Amortization Adjusted Earnings Before Interest, Taxes, Depreciation, And Amortization Increase (decrease) to Adjusted EBITDA Increase (Decrease) In Adjusted EBITDA Increase (Decrease) In Adjusted EBITDA Accounting Changes and Error Corrections [Abstract] Accounting Changes and Error Corrections [Abstract] Entity Registrant Name Entity Registrant Name Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Award Timing Method Award Timing Method [Text Block] Adjustment to Compensation, Amount Adjustment to Compensation Amount Noncontrolling interests Equity, Attributable to Noncontrolling Interest Vendor financing Vendor Financing [Member] Vendor Financing [Member] Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] Disposal Group Name [Axis] Disposal Group Name [Axis] Summary of Assets and Liabilities Measured at Fair Value Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] 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 Debt (excluding vendor financing) Repayments of Long-Term Debt Entity Central Index Key Entity Central Index Key Amortization of deferred financing costs and non-cash interest Amortization of Debt Issuance Costs and Discounts Gain (loss) on derivative instruments, net Realized and unrealized gains on derivative instruments, net Derivative, Gain (Loss) on Derivative, Net Realized and unrealized losses 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 Share-based compensation expense Share-Based Payment Arrangement, Expense Long-term Debt Long-Term Debt [Member] Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] Gross carrying amount Finite-Lived Intangible Assets, Gross Investments Investment Holdings [Text Block] 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] Programming commitments Programming Commitments [Member] Programming Commitments [Member] Payment of financing costs and debt premiums Payments of Financing Costs Thereafter Unrecorded Unconditional Purchase Obligation, to be Paid, after Year Five Name Trading Arrangement, Individual Name Contractual maturity: Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling Maturity, Fair Value [Abstract] Net cash provided by operating activities of discontinued operations Cash Provided by (Used in) Operating Activities, Discontinued Operations Continuing operations Interest Paid, Continuing Operations Interest Paid, Continuing Operations Earnings from discontinued operations, net of taxes Discontinued Operation, Income (Loss) from Discontinued Operation During Phase-out Period, Net of Tax Revenue (notes 3, 4, 5 and 16) Decrease in revenue Revenue Revenue from Contract with Customer, Excluding Assessed Tax Entity [Domain] Entity [Domain] Long-term Debt, Type [Axis] Long-Term Debt, Type [Axis] Amendment Flag Amendment Flag 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 Legal Entity [Axis] Legal Entity [Axis] 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 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] Tax Period [Domain] Tax Period [Domain] Weighted average discount rate, for operating leases Operating Lease, Weighted Average Discount Rate, Percent Number of revolving facilities Debt Instrument, Number Of Revolving Facilities Debt Instrument, Number Of Revolving Facilities Total Interest Paid, Excluding Capitalized Interest, Operating Activities Long-term portion Long-Term Debt, Excluding Current Maturities Weighted average remaining lease term for finance leases Finance Lease, Weighted Average Remaining Lease Term Weighted average ordinary shares outstanding (diluted EPS computation) (in shares) Weighted Average Number of Shares Outstanding, Diluted Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Asset Derivative Asset [Abstract] Classes of Assets and Liabilities Held for Sale Disposal Groups, Including Discontinued Operations [Table Text Block] Dispositions Goodwill, Written off Related to Sale of Business Unit Company Selected Measure Amount Company Selected Measure Amount Foreign currency and other Debt Instrument, Increase (Decrease), Foreign currency, acquisitions and other, Net Debt Instrument, Increase (Decrease), Foreign currency, acquisitions and other, Net Total assets Assets Name Awards Close in Time to MNPI Disclosures, Individual Name Thereafter Finance Lease, Liability, to be Paid, after Year Five Fixed-line telephony Cable Fixed-line Telephony Subscription [Member] Cable Fixed-line Telephony Subscription [Member] Share-based compensation (note 13) APIC, Share-Based Payment Arrangement, Increase for Cost Recognition 2028 Long-Term Debt, Maturity, Year Five Operating cash outflows from finance leases (interest component) Finance Lease, Interest Payment on Liability Non-NEOs Non-NEOs [Member] Aviatrix Systems, Inc. Aviatrix Systems, Inc. [Member] Aviatrix Systems, Inc. Income Tax Contingency [Line Items] Income Tax Contingency [Line Items] 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] Cash flows from financing activities: Net Cash Provided by (Used in) Financing Activities [Abstract] UPC SPE Notes UPCB SPE Notes [Member] UPCB SPE Notes [Member] Non-PEO NEO Non-PEO NEO [Member] Adjustment to Compensation: Adjustment to Compensation [Axis] Weighted average ordinary shares outstanding (basic EPS computation) (in shares) Weighted Average Number of Shares Outstanding, Basic Debt Instrument [Line Items] Debt Instrument [Line Items] Contract assets Contract with Customer, Asset, after Allowance for Credit Loss Subscription revenue Mobile Subscription [Member] Mobile Subscription [Member] Ireland Ireland [Member] Ireland Percentage of net present value, cost savings Percentage of Net Present Value, Cost Savings Percentage of Net Present Value, Cost Savings 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 Related Party Transaction [Axis] Related Party Transaction [Axis] Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Statement [Line Items] Statement [Line Items] Schedule of Derivative Instruments Schedule of Derivative Instruments [Table Text Block] Schedule of Debt Schedule of Debt [Table Text Block] Increase (decrease) to revenue Increase (Decrease) to Revenue Increase (Decrease) to Revenue Schedule of Debt Securities Debt Securities, Available-for-Sale [Table Text Block] Non-controlling interests Noncontrolling Interest [Member] Net earnings attributable to Liberty Global shareholders Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent