XML 49 R37.htm IDEA: XBRL DOCUMENT v3.26.1 Accounting for Derivative Instruments and Hedging Activities (Details) £ in Millions, $ in Millions 3 Months Ended 6 Months Ended Jun. 30, 2026 USD ($) Jun. 30, 2025 USD ($) Jun. 30, 2026 USD ($) Jun. 30, 2025 USD ($) Jun. 30, 2026 GBP (£) Jun. 30, 2026 USD ($) Dec. 31, 2025 USD ($) Gain (Loss) On Financial Instruments, Net               Change in fair value of cross-currency derivative instruments $ 41 $ 124 $ (35) $ 111       Foreign currency remeasurement of Sterling Notes to U.S. dollars (4) (104) 27 (156)       Gain (loss) on financial instruments, net $ 37 $ 20 $ (8) $ (45)       Cross Currency Derivatives               Derivatives:               Notional amount | £         £ 1,275     Level 2 | Cross Currency Derivatives               Derivatives:               Derivative Liability, Statement of Financial Position [Extensible Enumeration]         OTHER LONG-TERM LIABILITIES OTHER LONG-TERM LIABILITIES OTHER LONG-TERM LIABILITIES Derivative Liability           $ 442 $ 406 X - Definition Gain (Loss) On Financial Instruments, Net [Abstract] + References No definition available. + Details Name: chtr_GainLossOnFinancialInstrumentsNetAbstract Namespace Prefix: chtr_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration X - Definition Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. 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