| Schedule of allocation of excess basis within memo accounts used for equity accounting purposes | The excess basis in our investment in Charter is allocated within memo accounts used for equity method accounting purposes as follows (amounts in millions):  
|  |  |  |  |  |  |  |  
|  |  |  | June 30,  |  | December 31,  |  |  
|  |  |  | 2025 |  | 2024 |  |  
| Property and equipment, net |      | $ |  230 |  |  280 |  |  
| Customer relationships, net |  |   |  1,716 |  |  1,751 |  |  
| Franchise fees |  |   |  3,843 |  |  3,843 |  |  
| Trademarks |  |   |  29 |  |  29 |  |  
| Goodwill |  |   |  3,661 |  |  3,845 |  |  
| Debt |  |   |  (166) |  |  (251) |  |  
| Deferred income tax liability |  |   |  (1,413) |  |  (1,413) |  |  
|  |  | $ |  7,900 |  |  8,084 |  |  | 
| Summary of financial information for Charter | Charter condensed consolidated balance sheets 
|  |  |  |  |  |  |  |  
|  |      | June 30, 2025 |  | December 31, 2024 |   |  |  |  
|  |  | amounts in millions |  |  
| Current assets |  | $ |  4,812 |  |  4,233 |  |  
| Property and equipment, net |  |   |  44,187 |  |  42,913 |  |  
| Goodwill |  |   |  29,674 |  |  29,674 |  |  
| Intangible assets, net |  |   |  68,140 |  |  68,437 |  |  
| Other assets |  |   |  4,776 |  |  4,763 |  |  
| Total assets |  | $ |  151,589 |  |  150,020 |  |  
| Current liabilities |  | $ |  14,556 |  |  13,486 |  |  
| Deferred income taxes |  |   |  18,757 |  |  18,845 |  |  
| Long-term debt |  |   |  91,863 |  |  92,134 |  |  
| Other liabilities |  |   |  6,045 |  |  5,848 |  |  
| Equity |  |   |  20,368 |  |  19,707 |  |  
| Total liabilities and shareholders’ equity |  | $ |  151,589 |  |  150,020 |  |  Charter condensed consolidated statements of operations 
|  |  |  |  |  |  |  |  |  |  |  |  
|  |  | Three months ended   |      | Six months ended  |   |  
|  |  | June 30,  |  | June 30,  |  |  
|  |  | 2025 |  | 2024 |  | 2025 |  | 2024 |   |  |  |  
|  |  | amounts in millions |  |  
| Revenue |  | $ |  13,766 |  |  13,685 |  |  27,501 |  |  27,364 |  |  
| Cost and expenses: |  |  |  |  |  |  |  |  |  |  |  
| Operating costs and expenses (excluding depreciation and amortization) |  |   |  8,230 |  |  8,173 |  |  16,424 |  |  16,569 |  |  
| Depreciation and amortization |  |   |  2,176 |  |  2,170 |  |  4,357 |  |  4,360 |  |  
| Other operating (income) expense, net |  |   |  81 |  |  79 |  |  204 |  |  41 |  |  
|  |  |  |  10,487 |  |  10,422 |  |  20,985 |  |  20,970 |  |  
| Operating income |  |  |  3,279 |  |  3,263 |  |  6,516 |  |  6,394 |  |  
| Interest expense, net |  |   |  (1,263) |  |  (1,328) |  |  (2,504) |  |  (2,644) |  |  
| Other income (expense), net |  |  |  (107) |  |  (85) |  |  (249) |  |  (174) |  |  
| Income tax (expense) benefit |  |   |  (414) |  |  (427) |  |  (859) |  |  (873) |  |  
| Net income (loss) |  |  |  1,495 |  |  1,423 |  |  2,904 |  |  2,703 |  |  
| Less: Net income attributable to noncontrolling interests |  |  |  (194) |  |  (192) |  |  (386) |  |  (366) |  |  
| Net income (loss) attributable to Charter shareholders  |  | $ |  1,301 |  |  1,231 |  |  2,518 |  |  2,337 |  |   |