| 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):  
|  |  |  |  |  |  |  |  
|  |  |  | March 31,  |  | December 31,  |  |  
|  |  |  | 2025 |  | 2024 |  |  
| Property and equipment, net |      | $ |  254 |  |  280 |  |  
| Customer relationships, net |  |   |  1,675 |  |  1,751 |  |  
| Franchise fees |  |   |  3,843 |  |  3,843 |  |  
| Trademarks |  |   |  29 |  |  29 |  |  
| Goodwill |  |   |  3,742 |  |  3,845 |  |  
| Debt |  |   |  (239) |  |  (251) |  |  
| Deferred income tax liability |  |   |  (1,391) |  |  (1,413) |  |  
|  |  | $ |  7,913 |  |  8,084 |  |  | 
| Summary of financial information for Charter | Charter condensed consolidated balance sheets 
|  |  |  |  |  |  |  |  
|  |      | March 31, 2025 |  | December 31, 2024 |   |  |  |  
|  |  | amounts in millions |  |  
| Current assets |  | $ |  4,968 |  |  4,233 |  |  
| Property and equipment, net |  |   |  43,359 |  |  42,913 |  |  
| Goodwill |  |   |  29,674 |  |  29,674 |  |  
| Intangible assets, net |  |   |  68,286 |  |  68,437 |  |  
| Other assets |  |   |  4,667 |  |  4,763 |  |  
| Total assets |  | $ |  150,954 |  |  150,020 |  |  
| Current liabilities |  | $ |  13,672 |  |  13,486 |  |  
| Deferred income taxes |  |   |  18,822 |  |  18,845 |  |  
| Long-term debt |  |   |  91,970 |  |  92,134 |  |  
| Other liabilities |  |   |  5,968 |  |  5,848 |  |  
| Equity |  |   |  20,522 |  |  19,707 |  |  
| Total liabilities and shareholders’ equity |  | $ |  150,954 |  |  150,020 |  |  Charter condensed consolidated statements of operations 
|  |  |  |  |  |  |  |  
|  |  | Three months ended   |   |  
|  |  | March 31,  |  |  
|  |  | 2025 |  | 2024 |   |  |  |  
|  |  | amounts in millions |  |  
| Revenue |  | $ |  13,735 |  |  13,679 |  |  
| Cost and expenses: |  |  |  |  |  |  |  
| Operating costs and expenses (excluding depreciation and amortization) |  |   |  8,194 |  |  8,396 |  |  
| Depreciation and amortization |  |   |  2,181 |  |  2,190 |  |  
| Other operating (income) expense, net |  |   |  123 |  |  (38) |  |  
|  |  |  |  10,498 |  |  10,548 |  |  
| Operating income |  |  |  3,237 |  |  3,131 |  |  
| Interest expense, net |  |   |  (1,241) |  |  (1,316) |  |  
| Other income (expense), net |  |  |  (142) |  |  (89) |  |  
| Income tax (expense) benefit |  |   |  (445) |  |  (446) |  |  
| Net income (loss) |  |  |  1,409 |  |  1,280 |  |  
| Less: Net income attributable to noncontrolling interests |  |  |  (192) |  |  (174) |  |  
| Net income (loss) attributable to Charter shareholders  |  | $ |  1,217 |  |  1,106 |  |   |