| Schedule of allocation of excess basis within memo accounts used for equity accounting purposes | The excess basis in our investment in Charter of $8,981 million as of June 30, 2021 is allocated within memo accounts used for equity method accounting purposes as follows (amounts in millions):  
|  |  |  |  |  |  |  
|  |  |  | June 30,  |  | December 31,  |  
|  |  |  | 2021 |  | 2020 |  
| Property and equipment |      | $ |  706 |  |  733 |  
| Customer relationships |  |   |  2,649 |  |  2,726 |  
| Franchise fees |  |   |  3,784 |  |  3,693 |  
| Trademarks |  |   |  29 |  |  29 |  
| Goodwill |  |   |  4,039 |  |  3,934 |  
| Debt |  |   |  (584) |  |  (602) |  
| Deferred income tax liability |  |   |  (1,642) |  |  (1,641) |  
|  |  | $ |  8,981 |  |  8,872 |  | 
| Summary of financial information for Charter | Summarized unaudited financial information for Charter is as follows (amounts in millions): Charter condensed consolidated balance sheets 
|  |  |  |  |  |  |  |  
|  |      | June 30, 2021 |  | December 31, 2020 |   |  
| Current assets |  | $ |  4,682 |  |  3,909 |  |  
| Property and equipment, net |  |   |  34,206 |  |  34,357 |  |  
| Goodwill |  |   |  29,554 |  |  29,554 |  |  
| Intangible assets, net |  |   |  72,109 |  |  72,937 |  |  
| Other assets |  |   |  3,475 |  |  3,449 |  |  
| Total assets |  | $ |  144,026 |  |  144,206 |  |  
| Current liabilities |  | $ |  10,038 |  |  9,875 |  |  
| Deferred income taxes |  |   |  18,678 |  |  18,108 |  |  
| Long-term debt |  |   |  86,962 |  |  81,744 |  |  
| Other liabilities |  |   |  4,262 |  |  4,198 |  |  
| Equity |  |   |  24,086 |  |  30,281 |  |  
| Total liabilities and shareholders’ equity |  | $ |  144,026 |  |  144,206 |  |  Charter condensed consolidated statements of operations 
|  |  |  |  |  |  |  |  |  |  
|  | Three months ended   |      | Six months ended  |  
|  | June 30,  |  | June 30,  |  
|  | 2021 |  | 2020 |  | 2021 |  | 2020 |  
| Revenue | $ |  12,802 |  |  11,696 |  |  25,324 |  |  23,434 |  
| Cost and expenses: |  |  |  |  |  |  |  |  |  
| Operating costs and expenses (excluding depreciation and amortization) |   |  7,882 |  |  7,297 |  |  15,593 |  |  14,729 |  
| Depreciation and amortization |   |  2,354 |  |  2,428 |  |  4,795 |  |  4,925 |  
| Other operating expenses, net |   |  (9) |  |  2 |  |  293 |  |  9 |  
|  |  |  10,227 |  |  9,727 |  |  20,681 |  |  19,663 |  
| Operating income |  |  2,575 |  |  1,969 |  |  4,643 |  |  3,771 |  
| Interest expense, net |   |  (1,004) |  |  (957) |  |  (1,987) |  |  (1,937) |  
| Other income (expense), net |  |  (132) |  |  30 |  |  (80) |  |  (296) |  
| Income tax (expense) benefit |   |  (281) |  |  (166) |  |  (497) |  |  (195) |  
| Net income (loss) |  |  1,158 |  |  876 |  |  2,079 |  |  1,343 |  
| Less: Net income attributable to noncontrolling interests |  |  (138) |  |  (110) |  |  (252) |  |  (181) |  
| Net income (loss) attributable to Charter shareholders  | $ |  1,020 |  |  766 |  |  1,827 |  |  1,162 |  |