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The usual condition for control is ownership of a majority (over 50%) of the outstanding voting stock. The power to control may also exist with a lesser percentage of ownership, for example, by contract, lease, agreement with other stockholders or by court decree. 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[Member] 5.125% senior notes due May 1, 2023 [Member] 5.125% senior notes due May 1, 2023 5.750% Senior Notes Due September 1, 2023 [Member] 5.750% Senior Notes Due September 1, 2023 [Member] 5.750% Senior Notes Due September 1, 2023 5.750% Senior Notes Due January 15, 2024 [Member] 5.750% Senior Notes Due January 15, 2024 [Member] 5.750% Senior Notes Due January 15, 2024 5.875% Senior Notes Due April 1, 2024 [Member] 5.875% Senior Notes Due April 1, 2024 [Member] 5.875% Senior Notes Due April 1, 2024 5.375% Senior Notes Due May 1, 2025 [Member] 5.375% senior notes due May 1, 2025 [Member] 5.375% senior notes due May 1, 2025 5.750% Senior Notes Due February 15, 2026 [Member] 5.750% Senior Notes Due February 15, 2026 [Member] 5.750% Senior Notes Due February 15, 2026 5.500% Senior Notes Due May 1, 2026 [Member] 5.500% Senior Notes Due May 1, 2026 [Member] 5.500% Senior Notes Due May 1, 2026 5.875% Senior Notes Due May 1, 2027 [Member] 5.875% senior notes due May 1, 2027 [Member] 5.875% 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[Member] 4.000% Senior Notes Due September 1, 2021 [Member] 4.000% Senior Notes Due September 1, 2021 5.750% Sterling Senior Notes Due June 2, 2031 [Member] 5.750% Sterling Senior Notes Due June 2, 2031 [Member] 5.750% Sterling Senior Notes Due June 2, 2031 6.550% Senior Debentures Due May 1, 2037 [Member] 6.550% Senior Debentures Due May 1, 2037 [Member] 6.550% Senior Debentures Due May 1, 2037 7.300% Senior Debentures Due July 1, 2038 [Member] 7.300% Senior Debentures Due July 1, 2038 [Member] 7.300% Senior Debentures Due July 1, 2038 6.750% Senior Debentures Due June 15, 2039 [Member] 6.750% Senior Debentures Due June 15, 2039 [Member] 6.750% Senior Debentures Due June 15, 2039 5.875% Senior Debentures Due November 15, 2040 [Member] 5.875% Senior Debentures Due November 15, 2040 [Member] 5.875% Senior Debentures Due November 15, 2040 5.500% Senior Debentures Due September 1, 2041 [Member] 5.500% Senior Debentures Due September 1, 2041 [Member] 5.500% Senior Debentures Due September 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instrument at time of issuance [for debt classified as current in the balance sheet], which may vary from the carrying amount because of unamortized premium or discount. Accreted value, current portion Long-term Debt, Current Maturities Principal amount, noncurrent portion Debt Instrument Face Amount Noncurrent The stated principal amount of the debt instrument at time of issuance [for debt classified as noncurrent in the balance sheet, which may vary from the carrying amount because of unamortized premium or discount. Accreted value, noncurrent portion Long-term Debt, Excluding Current Maturities Stated interest rate (percentage) Debt Instrument, Interest Rate, Stated Percentage Availability under credit facilities Line of Credit Facility, Remaining Borrowing Capacity Revolving loan borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Debt instrument issue price (percentage) Debt Instrument Issue Price Percentage Percentage price of original principal amount of debt at which debt was issued. LIBOR spread Debt Instrument, Basis Spread on Variable Rate Loans Payable - Related Party [Abstract] Loans Payable - Related Party [Abstract] Schedule of Related Party Transactions, by Related Party [Table] Schedule of Related Party Transactions, by Related Party [Table] Related Party [Axis] Related Party [Axis] Related Party [Domain] Related Party [Domain] Charter Holdco [Member] Charter Holdco [Member] Charter Communications Holding Company, LLC Charter [Member] Charter [Member] Charter Communications, Inc. Related Party Transactions: Related Party Transaction [Line Items] LOANS PAYABLE - RELATED PARTY Due to Related Parties, Noncurrent Income Taxes [Abstract] Income Taxes [Abstract] Income tax expense Income Tax Expense (Benefit) Unrecognized Tax Benefits Unrecognized Tax Benefits Long-term Debt Summary Schedule of Debt [Table Text Block] Franchises, Goodwill and Other Intangible Assets [Abstract] Franchises, Goodwill and Other Intangible Assets [Abstract] Franchises, Goodwill and Other Intangible Assets Goodwill and Intangible Assets Disclosure [Text Block] Statement of Stockholders' Equity [Abstract] Statement [Table] Statement [Table] Equity Components [Axis] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Member's Equity [Member] Member Units [Member] Accumulated Other Comprehensive Loss [Member] AOCI Attributable to Parent [Member] Total CCO Holdings Member's Equity [Member] Parent [Member] Noncontrolling Interest [Member] Noncontrolling Interest [Member] Statement [Line Items] Statement [Line Items] Rollforward of Consolidated Shareholders' Equity: Increase (Decrease) in Stockholders' Equity [Roll Forward] Balance Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Consolidated net income Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Stock compensation expense Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition Accelerated vesting of equity awards Adjustments To Additional Paid In Capital Sharebased Compensation Accelerated Compensation Cost Value Additional share-based compensation cost recognized as a result of an occurrence of an event that accelerates its recognition. Contributions from Parent Contributions from Parent Amount of equity impact from parent as a source of financing that is recorded as additional paid in capital. Distributions to Parent Distributions to Parent Amount of equity impact to owners or shareholders, excluding ordinary dividends. Includes special dividends. Distributions to noncontrolling interest Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders Cumulative effect of accounting changes Cumulative Effect on Retained Earnings, Net of Tax Balance Comprehensive Income [Abstract] Comprehensive Income [Abstract] Comprehensive income Comprehensive Income (Loss), Net of Tax, Attributable to Parent Fair Value Measurements [Abstract] Fair Value Measurements [Abstract] Fair Value Measurements Fair Value Disclosures [Text Block] Accounts Payable and Accrued Liabilities [Abstract] Accounts payable - trade Accounts Payable, Trade, Current Deferred revenue Deferred Revenue, Current Accrued liabilities: Accrued Liabilities, Current [Abstract] Programming costs Program Rights Obligations, Current Labor Employee-related Liabilities, Current Capital expenditures Accrued capital expenditures Carrying value as of the balance sheet date of accrued capital expenditures for long-lived, physical assets used in the normal conduct of business and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software. Interest Interest Payable, Current Taxes and regulatory fees Accrued Taxes And Regulatory Fees, Current Carrying value as of the balance sheet date of obligations incurred through that date for taxes and regulatory fees. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Other Other Accrued Liabilities, Current Total accounts payable and accrued liabilities Accounts Payable and Accrued Liabilities, Current Accounting for Derivative Instruments and Hedging Activities [Abstract] Accounting for Derivative Instruments and Hedging Activities [Abstract] Income Statement Effects of Financial Instruments Schedule of Derivatives Instruments Statements of Financial Performance and Financial Position, Location [Table Text Block] Derivatives Policy Derivatives, Policy [Policy Text Block] Operating Costs and Expenses [Abstract] Programming Programming Expense Programming Expense Regulatory, connectivity and produced content Franchise, Regulatory and Connectivity Expense Franchise, Regulatory and Connectivity Expense Costs to service customers Cost to Service Customers Cost to Service Customers Marketing Marketing and Advertising Expense Mobile Mobile Mobile costs and expenses Other Other Cost and Expense, Operating Operating costs and expenses (exclusive of items shown separately in the consolidated statements of operations) Operating Expenses Commitments and Contingencies [Abstract] Commitments and Contingencies [Abstract] Loss Contingency, Damages Awarded, Value Loss Contingency, Damages Awarded, Value Litigation Settlement Interest Litigation Settlement Interest Loss Contingency, Damages Sought, Value Loss Contingency, Damages Sought, Value Carrying Value and Fair Value of Debt Fair Value, by Balance Sheet Grouping [Table Text Block] Consolidating Schedules [Abstract] Consolidating Schedules [Abstract] Condensed Income Statement [Table] Condensed Income Statement [Table] Charter Operating and Restricted Subsidiaries [Member] Charter Operating and Subsidiaries [Member] Another company which is controlled, directly or indirectly, by its parent. The usual condition for control is ownership of a majority (over 50%) of the outstanding voting stock. The power to control may also exist with a lesser percentage of ownership, for example, by contract, lease, agreement with other stockholders or by court decree. Consolidation Items [Axis] Consolidation Items [Axis] Consolidation Items [Domain] Consolidation Items [Domain] Eliminations [Member] Consolidation, Eliminations [Member] Condensed Consolidating Statements of Operations Condensed Income Statements, Captions [Line Items] REVENUES Revenues COSTS AND EXPENSES: Operating costs and expenses (exclusive of items shown separately below) Depreciation and amortization Depreciation, Amortization and Accretion, Net Other operating (income) expenses, net Other Operating Income (Expense), Net Total costs and expenses Costs and Expenses Income from operations Operating Income (Loss) OTHER INCOME (EXPENSES): Other Expenses [Abstract] Interest income (expense), net Interest Income (Expense), Net Gain on financial instruments, net Gain (Loss) on Derivative Instruments, Net, Pretax Other pension benefits, net Net Periodic Defined Benefits Expense (Reversal of Expense), Excluding Service Cost Component Other expense, net Other Nonoperating Income (Expense) Equity in income of subsidiaries Income (Loss) from Subsidiaries, before Tax Total other income (expense) Nonoperating Income (Expense) Income before income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Consolidated net income Related Party Transactions [Abstract] Related Party Transactions Related Party Transactions Disclosure [Text Block] Net Periodic Pension Benefit Schedule of Net Benefit Costs [Table Text Block] Accounting for Derivative Instruments and Hedging Activities Derivative Instruments and Hedging Activities Disclosure [Text Block] Impairment on equity method investment [Abstract] Other than Temporary Impairment Losses, Investments [Abstract] Impairment on equity method investment Equity Method Investment, Other than Temporary Impairment Contingencies Commitments and Contingencies Disclosure [Text Block] Schedule of Indefinite-Lived Intangible Assets [Table] Schedule of Indefinite-Lived Intangible Assets [Table] Indefinite-lived Intangible Assets [Axis] Indefinite-lived Intangible Assets [Axis] Indefinite-lived Intangible Assets, Major Class Name [Domain] Indefinite-lived Intangible Assets, Major Class Name [Domain] Franchises [Member] Franchise Rights [Member] Other Intangible Assets [Member] Other Intangible Assets [Member] Indefinite-lived Intangible Assets: Indefinite-lived Intangible Assets [Line Items] Indefinite-lived intangible assets Indefinite-lived Intangible Assets (Excluding Goodwill) Goodwill Goodwill Indefinite-lived intangible assets and goodwill Indefinite Lived Intangible Assets Including Goodwill Sum of the carrying amounts as of the balance sheet date of intangible assets having a projected indefinite period of benefit. Schedule of Finite-Lived Intangible Assets [Table] Schedule of Finite-Lived Intangible Assets [Table] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Customer Relationships [Member] Customer Relationships [Member] Finite-lived Intangible Assets: Finite-Lived Intangible Assets [Line Items] Gross carrying amount Finite-Lived Intangible Assets, Gross Accumulated Amortization Finite-Lived Intangible Assets, Accumulated Amortization Net Carrying Amount Finite-Lived Intangible Assets, Net Amortization expense Amortization of Intangible Assets Nine months ended December 31, 2019 Finite-Lived Intangible Assets, Amortization Expense, Remainder of Fiscal Year 2020 Finite-Lived Intangible Assets, Amortization Expense, Year Two 2021 Finite-Lived Intangible Assets, Amortization Expense, Year Three 2022 Finite-Lived Intangible Assets, Amortization Expense, Year Four 2023 Finite-Lived Intangible Assets, Amortization Expense, Year Five Thereafter Finite-Lived Intangible Assets, Amortization Expense, after Year Five Comprehensive Income Comprehensive Income (Loss) [Text Block] The entire disclosure for comprehensive income (loss). Consolidating Schedules Condensed Financial Information of Parent Company Only Disclosure [Text Block] Income Statement [Abstract] Total costs and expenses Income from operations OTHER INCOME (EXPENSES): Interest expense, net Total other income (expense) Income before income taxes Consolidated net income Long-Term Debt Long-term Debt [Text Block] Organization and Basis of Presentation [Abstract] Organization and Basis of Presentation [Abstract] Number of reportable segments Number of Reportable Segments Leases [Abstract] Leases Leases of Lessee Disclosure [Text Block] Class of Stock [Axis] Class of Stock [Axis] Class of Stock [Domain] Class of Stock [Domain] Class A Common Stock [Member] Common Class A [Member] Class B Common Stock [Member] Common Class B [Member] Class C Common Stock [Member] Common Class C [Member] Equity Method Investee [Member] Equity Method Investee [Member] Range [Axis] Range [Axis] Range [Domain] Range [Domain] Maximum [Member] Maximum [Member] Dr. John Malone's voting interest in Liberty Broadband (percentage) Dr. John Malone's voting interest in Liberty Broadband Dr. John Malone's, a member of Charter's board of directors, voting interest Liberty Broadband Corporation Dr. John Malone's voting interest in Qurate Retail, Inc. (percentage) Dr. John Malone's, a member of Charter's board of directors, voting interest in Qurate Retail, Inc. Dr. John Malone's, a member of Charter's board of directors, voting interest in Qurate Retail, Inc.. Cash payments received from HSN, Inc. and QVC, Inc. Cash Payments Received From HSN And QVC Cash payments received from HSN and QVC for related party transactions. Dr. John Malone's ownership percentage in Discovery Communications, Inc. (percentage) Dr. John Malone's, a member of Charter's board of directors, ownership percentage in Discovery Communications, Inc. Dr. John Malone's, a member of Charter's board of directors, ownership percentage in Discovery Communications, Inc. Dr. John Malone's voting interest in Discovery Communications, Inc. for election of directors (percentage) Dr. John Malone's, a member of Charter's board of directors, voting interest in Discovery Communications, Inc. for election of directors Dr. John Malone's, a member of Charter's board of directors, voting interest in Discovery Communications, Inc. for election of directors Advance Newhouse Programming Partnership's ownership percentage in Series A preferred stock of Discovery Communications, Inc. (percentage) Advance Newhouse Programming Partnership Ownership Percentage In Discovery Series A Preferred Stock Percentage represents Advance Newhouse Programming Partnership’s ownership percentage in the Series A preferred stock of Discovery Communications, Inc. Dr. Malone and Mr. Miron, each a member of Charter’s board of directors, also serve on the board of directors of Discovery Communications, Inc. Charter purchases programming from Discovery Communications, Inc. pursuant to agreement(s) entered into prior to Dr. Malone and Mr. Miron joining Charter's board of directors. Advance Newhouse Programming Partnership's ownership percentage in Series C preferred stock of Discovery Communications, Inc. (percentage) Advance Newhouse Programming Partnership Ownership Percentage In Discovery Series C Preferred Stock Percentage represents Advance Newhouse Programming Partnership’s ownership percentage in the Series C preferred stock of Discovery Communications, Inc. Dr. Malone and Mr. Miron, each a member of Charter’s board of directors, also serve on the board of directors of Discovery Communications, Inc. Charter purchases programming from Discovery Communications, Inc. pursuant to agreement(s) entered into prior to Dr. Malone and Mr. Miron joining Charter's board of directors. Advance Newhouse Programming Partnership's voting interest in Discovery Communications, Inc. for election of directors Advance Newhouse Programming Partnership's voting interest in Discovery Communications, Inc. for election of directors Advance Newhouse Programming Partnership's voting interest in Discovery Communications, Inc. for election of directors Percent of total operating costs and expenses paid to Discovery Communications, Inc. and Starz (percentage) Percent of total operating costs and expenses paid to Discovery and Starz Percent of total operating costs and expenses paid to Discovery and Starz Payments to related parties Payments To Related Parties Cash payments made to related parties. Operating Costs and Expenses Operating Costs and Expenses [Table Text Block] Tabular disclosure of the detailed components of Operating Costs and Expenses. Recently Issued Accounting Standards [Abstract] Recently Issued Accounting Standards [Abstract] New Accounting Pronouncements and Changes in Accounting Principles [Abstract] New Accounting Pronouncements or Change in Accounting Principle [Table] New Accounting Pronouncements or Change in Accounting Principle [Table] Adjustments for New Accounting Pronouncements [Axis] Adjustments for New Accounting Pronouncements [Axis] Type of Adoption [Domain] Type of Adoption [Domain] Accounting Standards Update 2014-09 [Member] Accounting Standards Update 2014-09 [Member] Accounting Standards Update 2016-02 [Member] Accounting Standards Update 2016-02 [Member] New Accounting Pronouncements or Change in Accounting Principle [Line Items] New Accounting Pronouncements or Change in Accounting Principle [Line Items] New Accounting Pronouncement, Effect of Adoption on Total Shareholders' Equity New Accounting Pronouncement, Effect of Adoption on Total Shareholders' Equity Represents the quantification of the effect of adopting the new accounting standard on total shareholders' equity expected by the entity to have a significant effect on the entity's financial statements. New Accounting Pronouncement, Effect of Adoption on Noncurrent Assets New Accounting Pronouncement, Effect of Adoption on Noncurrent Assets Represents the quantification of the effect of adopting the new accounting standard on noncurrent assets expected by the entity to have a significant effect on the entity's financial statements. New Accounting Pronouncement, Effect of Adoption on Noncurrent Liabilities New Accounting Pronouncement, Effect of Adoption on Noncurrent Liabilities Represents the quantification of the effect of adopting the new accounting standard on noncurrent liabilities expected by the entity to have a significant effect on the entity's financial statements. Other Operating Expenses, Net [Abstract] Other Operating Expenses, Net [Abstract] Other Operating Expenses, Net Other Income and Other Expense Disclosure [Text Block] Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value Measurements, Recurring and Nonrecurring [Table] Derivative Instrument [Axis] Derivative Instrument [Axis] Derivative Contract [Domain] Derivative Contract [Domain] Cross Currency Derivatives [Member] Currency Swap [Member] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Fair Value, Measurements, Fair Value Hierarchy [Domain] Fair Value Hierarchy and NAV [Domain] Level 2 [Member] Fair Value, Inputs, Level 2 [Member] Senior Notes and Debentures [Member] Senior Notes And Debentures [Member] Senior notes and debentures. Fair Value Measurements: Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Derivative Liability Derivative Liability Debt, carrying value Debt, fair value Long-term Debt, Fair Value Asset impairment charges Asset Impairment Charges Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Derivatives: Derivatives, Fair Value [Line Items] Notional amount Derivative, Notional Amount Collateral holiday agreement, percentage of position covered Collateral Holiday Agreement Percentage Percentage of liability position derivative instruments covered by a collateral holiday agreement. Collateral holiday agreement, term Collateral Holiday Agreement Term Number of years liability position derivative instruments are covered by a collateral holiday agreement. Loss on financial instruments, net: Gain (Loss) On Financial Instruments, Net [Abstract] Gain (Loss) On Financial Instruments, Net [Abstract] Change in fair value of cross-currency derivative instruments Gain (Loss) on Foreign Currency Derivative Instruments Not Designated as Hedging Instruments Foreign currency remeasurement of Sterling Notes to U.S. dollars Foreign Currency Transaction Gain (Loss), Realized Gain (loss) on financial instruments, net Condensed Balance Sheet Statement [Table] Condensed Balance Sheet Statement [Table] Condensed Consolidating Balance Sheets Condensed Balance Sheet Statements, Captions [Line Items] ASSETS Assets [Abstract] Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Accounts receivable, net Accounts Receivable, Net, Current Receivables from related party Due from Related Parties, Current Prepaid expenses and other current assets Prepaid Expense and Other Assets, Current Total current assets Assets, Current Property, plant and equipment, net Property, Plant and Equipment, Net Customer relationships, net Customer relationships, net Carrying amount (original costs adjusted for previously recognized amortization and impairment) as of the balance sheet date for the value of the business relationship with existing customers (less anticipated churn). Franchises Indefinite-Lived Franchise Rights Total investment in cable properties, net Total investment in cable properties, net Sum of carrying amounts as of the balance sheet date of property, plant and equipment, franchises, customer relationships, net and goodwill. INVESTMENT IN SUBSIDIARIES Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures OPERATING LEASE RIGHT-OF-USE ASSETS Operating Lease, Right-of-Use Asset LOANS RECEIVABLE - RELATED PARTY Due from Related Parties, Noncurrent OTHER NONCURRENT ASSETS Other Assets, Noncurrent Total assets Assets LIABILITIES AND MEMBERS' EQUITY Liabilities and Equity [Abstract] CURRENT LIABILITIES: Liabilities, Current [Abstract] Accounts payable and accrued liabilities Operating lease liabilities Operating Lease, Liability, Current Payables to related party Due to Related Parties, Current Current portion of long-term debt Total current liabilities Liabilities, Current LONG-TERM DEBT DEFERRED INCOME TAXES Deferred Tax Liabilities, Net LONG-TERM OPERATING LEASE LIABILITIES Operating Lease, Liability, Noncurrent OTHER LONG-TERM LIABILITIES Other Liabilities, Noncurrent MEMBER'S EQUITY Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Controlling interest Stockholders' Equity Attributable to Parent Noncontrolling interests Stockholders' Equity Attributable to Noncontrolling Interest Total member's equity Total liabilities and member's equity Liabilities and Equity Stock Compensation Plans [Abstract] Stock Compensation Plans [Abstract] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Award Date [Axis] Award Date [Axis] Award Date [Domain] Award Date [Domain] Legacy TWC Awards Converted May 2016 [Member] Legacy TWC Awards Converted May 2016 [Member] Legacy TWC Awards Converted May 2016 [Member] Minimum [Member] Minimum [Member] Award Type [Axis] Award Type [Axis] Equity Award [Domain] Equity Award [Domain] Stock Option [Member] Employee Stock Option [Member] Restricted Stock [Member] Restricted Stock [Member] Restricted Stock Units [Member] Restricted Stock Units (RSUs) [Member] Stock Compensation Plans: Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Stock options granted in period (shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross Awards other than stock options granted in period (shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Award vesting period Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Award expiration period Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period Award vesting percentage Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage Unrecognized compensation cost Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized Remaining period over which to recognize unrecognized compensation expense Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition Stock compensation expense Allocated Share-based Compensation Expense Stock compensation expense recognized in merger costs Allocated Share Based Compensation Expense Classified As Merger Costs Represents the expense recognized as merger costs in the income statement during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. Loans Payable - Related Party [Text Block] Loans Receivable from (Payable to) Related Party [Text Block] the entire disclosure of loans receivable from (payables to) related parties Accounts receivable, less allowance for doubtful accounts of $144 and $129, respectively Total current assets Property, plant and equipment, net of accumulated depreciation of $24,559 and $23,038, respectively Customer relationships, net Goodwill Total investment in cable properties, net Total assets LIABILITIES AND MEMBER'S EQUITY Accounts payable and accrued liabilities Total current liabilities MEMBER'S EQUITY: Member's equity Members' Capital Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax Total CCO Holdings member's equity Members' Equity Noncontrolling Interests Members' Equity Attributable to Noncontrolling Interest Total member's equity Limited Liability Company (LLC) Members' Equity, Including Portion Attributable to Noncontrolling Interest Total liabilities and member's equity Indefinite-lived and Finite-lived Intangible Assets Schedule of Intangible Assets and Goodwill [Table Text Block] Expected Future Amortization Expense Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] Condensed Cash Flow Statement [Table] Condensed Cash Flow Statement [Table] Condensed Consolidating Statements of Cash Flows Condensed Cash Flow Statements, Captions [Line Items] Net cash flows from operating activities Net Cash Provided by (Used in) Operating Activities CASH FLOWS FROM INVESTING ACTIVITIES: Net Cash Provided by (Used in) Investing Activities [Abstract] Purchases of property, plant and equipment Payments to Acquire Property, Plant, and Equipment Change in accrued expenses related to capital expenditures Changes in accrued expenses related to capital expenditures The increase (decrease) during the reporting period in the amounts payable for capital expenditures. Contributions to subsidiaries Payments of Distributions to Affiliates Distributions from subsidiaries Proceeds from Contributions from Affiliates Other, net Payments for (Proceeds from) Other Investing Activities Net cash flows from investing activities Net Cash Provided by (Used in) Investing Activities CASH FLOWS FROM FINANCING ACTIVITIES: Net Cash Provided by (Used in) Financing Activities [Abstract] Borrowings of long-term debt Proceeds from Issuance of Long-term Debt Repayments of long-term debt Repayments of Long-term Debt Repayments of loans payable - related parties Proceeds from Collection of (Payments to Fund) Long-term Loans to Related Parties Payments for debt issuance costs Payments of Debt Issuance Costs Distributions to noncontrolling interest Payments of Ordinary Dividends, Noncontrolling Interest Contributions from parent Proceeds from Contributions from Parent Distributions to parent Payments of Capital Distribution Other, net Proceeds from (Payments for) Other Financing Activities Net cash flows from financing activities Net Cash Provided by (Used in) Financing Activities NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS Cash and Cash Equivalents, Period Increase (Decrease) CASH AND CASH EQUIVALENTS, beginning of period CASH AND CASH EQUIVALENTS, end of period Accounts Payable and Accrued Liabilities Schedule of Accounts Payable and Accrued Liabilities [Table Text Block] Stock Compensation Plans Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Recently Issued Accounting Standards New Accounting Pronouncements and Changes in Accounting Principles [Text Block] Organization and Basis of Presentation Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Operating lease expense Operating Lease, Expense Amortization of right-of-use assets Finance Lease, Right-of-Use Asset, Amortization Interest on lease liabilities Finance Lease, Interest Expense Total finance lease expense Total finance lease expense Total finance lease expense. Includes amortization of right-of-use assets and interest on lease liabilities. Sublease Income Sublease Income Total lease related expenses, net Lease, Cost short term leases and variable leases costs short term leases and variable leases costs Amount of short-term leases and variable leases costs. Operating cash flows from operating leases Operating cash flows from operating leases Cash paid for amounts included in the measurement of operating lease liabilities and recorded within operating cash flows. Operating cash flows from finance leases Operating cash flows from finance leases Cash paid for amounts included in the measurement of finance lease liabilities and recorded within operating cash flows. Financing cash flows from financing leases Financing cash flows from financing leases Cash paid for amounts included in the measurement of finance lease liabilities and recorded within financing cash flows. Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Right-of-Use Asset Obtained in Exchange for Finance Lease Liability Right-of-Use Asset Obtained in Exchange for Finance Lease Liability Total operating lease liabilities Operating Lease, Liability Finance Lease Right-of-Use Asset Finance Lease, Right-of-Use Asset Current finance lease liabilities Finance Lease, Liability, Current Long-term finance lease liabilities Finance Lease, Liability, Noncurrent Total finance lease liabilities Finance Lease, Liability Weighted average remaining operating lease term (in years) Operating Lease, Weighted Average Remaining Lease Term Weighted average remaining finance lease term (in years) Finance Lease, Weighted Average Remaining Lease Term Weighted average discount rate - operating leases (percentage) Operating Lease, Weighted Average Discount Rate, Percent Weighted average discount rate - finance leases (percentage) Finance Lease, Weighted Average Discount Rate, Percent Operating Leases, Future Minimum Payments, Nine months ended December 31, 2019 Lessee, Operating Lease, Liability, Payments, Remainder of Fiscal Year Operating Leases, Future Minimum Payments, 2020 Lessee, Operating Lease, Liability, Payments, Due Year Two Operating Leases, Future Minimum Payments, 2021 Lessee, Operating Lease, Liability, Payments, Due Year Three Operating Leases, Future Minimum Payments, 2022 Lessee, Operating Lease, Liability, Payments, Due Year Four Operating Leases, Future Minimum Payments, 2023 Lessee, Operating Lease, Liability, Payments, Due Year Five Operating Leases, Future Minimum Payments, Due Thereafter Lessee, Operating Lease, Liability, Payments, Due after Year Five Operating Leases, Future Minimum Payments Due Lessee, Operating Lease, Liability, Undiscounted Excess Amount Reconciling impact from discounting capital lease liabilities Reconciling impact from discounting capital lease liabilities Reconciling impact from discounting capital lease liabilities Capital Leases, Future Minimum Payments, Nine months ended December 31, 2019 Finance Lease, Liability, Payments, Remainder of Fiscal Year Capital Leases, Future Minimum Payments 2020 Finance Lease, Liability, Payments, Due Year Two Capital Leases, Future Minimum Payments 2021 Finance Lease, Liability, Payments, Due Year Three Capital Leases, Future Minimum Payments 2022 Finance Lease, Liability, Payments, Due Year Four Capital Leases, Future Minimum Payments 2023 Finance Lease, Liability, Payments, Due Year Five Capital Leases, Future Minimum Payments Due Thereafter Finance Lease, Liability, Payments, Due after Year Five Capital Leases, Future Minimum Payments Due Finance Lease, Liability, Undiscounted Excess Amount Reconciling impact from discounting finance lease liabilities Reconciling impact from discounting finance lease liabilities Reconciling impact from discounting finance lease liabilities Special charges, net Other Nonrecurring (Income) Expense (Gain) loss on sale of assets, net Gain (Loss) on Disposition of Assets Other operating (income) expenses, net Merger and restructuring related costs Restructuring Charges Obligation charge arising from a withdrawal liability from a multi-employer pension plan Obligation charge arising from a withdrawal liability from a multi-employer pension plan Obligation charge arising from a withdrawal liability from a multi-employer pension plan Consolidating Schedules Condensed Financial Statements [Table Text Block] Income Taxes Income Tax Disclosure [Text Block] Equity Award Grants Share-based Compensation, Activity [Table Text Block] Schedule of components of lease related expenses Schedule of Components of Lease Related Expenses [Table Text Block] Tabular disclosure of components of lease related expenses for each period for which an income statement is presented. Schedule of Supplemental Cash Flow Information Schedule of Supplemental Cash Flow Information [Table Text Block] Tabular disclosure of supplemental cash flow information related to leases. Schedule of supplemental balance sheet information Schedule of supplemental balance sheet information [Table Text Block] Tabular disclosure of supplemental balance sheet information related to leases. Schedule of future minimum lease payments for operating and finance leases Schedule of future minimum lease payments for operating and finance leases [Table Text Block] Tabular disclosure of future minimum lease payments as of the date of the latest balance sheet presented, in aggregate and for each of the five years succeeding fiscal years. Schedule of future minimum lease payments for operating and finance leases as of year end Schedule of future minimum lease payments for operating and finance leases as of year end [Table Text Block] Tabular disclosure of future minimum lease payments as of year end, in aggregate and for each of the five years succeeding fiscal years. Interest cost Defined Benefit Plan, Interest Cost Expected return on plan assets Defined Benefit Plan, Expected Return (Loss) on Plan Assets Net periodic pension benefit (costs) Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Statement of Cash Flows [Abstract] CASH FLOWS FROM OPERATING ACTIVITIES: Net Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile consolidated net income to net cash flows from operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Stock compensation expense Share-based Compensation Accelerated vesting of equity awards Share-based Compensation Arrangement by Share-based Payment Award Accelerated Compensation Cost Noncash interest income, net Amortization of Debt Discount (Premium) Other pension benefits, net Gain on financial instruments, net Deferred income taxes Deferred Income Tax Expense (Benefit) Other, net Other Noncash Income (Expense) Changes in operating assets and liabilities: Increase (Decrease) in Operating Capital [Abstract] Accounts receivable Increase (Decrease) in Accounts Receivable Prepaid expenses and other assets Increase (Decrease) in Prepaid Expense and Other Assets Accounts payable, accrued liabilities and other Increase (Decrease) in Accounts Payable and Accrued Liabilities Receivables from and payables to related party Increase (Decrease) in Due to Related Parties, Current Net cash flows from operating activities Net cash flows from investing activities Distributions to parent Net cash flows from financing activities NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS CASH PAID FOR INTEREST Interest Paid, Excluding Capitalized Interest, Operating Activities Other Operating Expenses, Net Schedule of Other Operating Cost and Expense, by Component [Table Text Block] Operating Costs and Expenses Operating Costs and Expenses [Text Block] The entire disclosure for Operating Costs and Expenses. Entities [Table] Entity Information [Line Items] Entity Information [Line Items] Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Entity Filer Category Entity Filer Category Document Type Document Type Document Period End Date Document Period End Date Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Trading Symbol Trading Symbol Entity Small Business Entity Small Business Entity Emerging Growth Company Entity Emerging Growth Company Amendment Flag Amendment Flag Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Accounts Payable and Accrued Liabilities Accounts Payable and Accrued Liabilities Disclosure [Text Block]