XML 122 R106.htm IDEA: XBRL DOCUMENT v3.25.4 Employee Benefit Plans - Defined Contribution Benefit Plans (Details) - USD ($) $ in Millions 12 Months Ended Dec. 31, 2025 Dec. 31, 2024 Dec. 31, 2023 Defined Contribution Plan Disclosure [Line Items]       Defined contribution plan, employer's contributions $ 546 $ 574 $ 566 401(k) Plan       Defined Contribution Plan Disclosure [Line Items]       Maximum contribution percentage 50.00%     Defined contribution plan, employer matching contribution (percentage) 100.00%     Defined contribution plan, employer matching contribution percent of employees' gross pay (percentage) 6.00%     Retirement Accumulation Plan       Defined Contribution Plan Disclosure [Line Items]       Defined contribution plan, employer matching contribution percent of employees' gross pay (percentage) 3.00%     X - Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 70 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480794/715-70-50-1 + Details Name: us-gaap_DefinedContributionPlanDisclosureLineItems Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration X - Definition Amount of discretionary contributions made by an employer to a defined contribution plan. + References No definition available. + Details Name: us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration X - Definition Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan. + References No definition available. + Details Name: us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent Namespace Prefix: us-gaap_ Data Type: dtr-types:percentItemType Balance Type: na Period Type: duration X - Definition Percentage employer matches of the employee's percentage contribution matched. + References No definition available. + Details Name: us-gaap_DefinedContributionPlanEmployerMatchingContributionPercentOfMatch Namespace Prefix: us-gaap_ Data Type: dtr-types:percentItemType Balance Type: na Period Type: duration X - Definition Maximum percentage of employee gross pay the employee may contribute to a defined contribution plan. + References No definition available. + Details Name: us-gaap_DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent Namespace Prefix: us-gaap_ Data Type: dtr-types:percentItemType Balance Type: na Period Type: duration X - Details Name: us-gaap_RetirementPlanNameAxis=chtr_A401kPlanMember Namespace Prefix: Data Type: na Balance Type: Period Type: X - Details Name: us-gaap_RetirementPlanNameAxis=chtr_RetirementAccumulationPlanMember Namespace Prefix: Data Type: na Balance Type: Period Type: