| Schedule of allocation of excess basis within memo accounts used for equity accounting purposes | The excess basis in our investment in Charter of $3,767 million as of September 30, 2019 is allocated within memo accounts used for equity accounting purposes as follows (amounts in millions):  
|  |  |  |  |  |  |  
|  |  |  | September 30,  |  | December 31,  |  
|  |  |  | 2019 |  | 2018 |  
| Property and equipment |      | $ |  251 |  |  328 |  
| Customer relationships |  |   |  906 |  |  721 |  
| Franchise fees |  |   |  1,927 |  |  1,821 |  
| Trademarks |  |   |  29 |  |  29 |  
| Goodwill |  |   |  1,460 |  |  1,202 |  
| Debt |  |   |  (41) |  |  (105) |  
| Deferred income tax liability |  |   |  (765) |  |  (698) |  
|  |  | $ |  3,767 |  |  3,298 |  | 
| Summary of financial information for Charter | Summarized unaudited financial information for Charter is as follows (amounts in millions): Charter condensed consolidated balance sheets  
|  |  |  |  |  |  |  |  
|  |      | September 30, 2019 |  | December 31, 2018 |   |  
| Current assets |  | $ |  3,477 |  |  2,944 |  |  
| Property and equipment, net |  |   |  34,218 |  |  35,126 |  |  
| Goodwill |  |   |  29,554 |  |  29,554 |  |  
| Intangible assets, net |  |   |  75,278 |  |  76,884 |  |  
| Other assets |  |   |  2,740 |  |  1,622 |  |  
| Total assets |  | $ |  145,267 |  |  146,130 |  |  
| Current liabilities |  |  |  11,982 |  |  12,095 |  |  
| Deferred income taxes |  |   |  17,609 |  |  17,389 |  |  
| Long-term debt |  |   |  71,390 |  |  69,537 |  |  
| Other liabilities |  |   |  3,764 |  |  2,837 |  |  
| Equity |  |   |  40,522 |  |  44,272 |  |  
| Total liabilities and shareholders’ equity |  | $ |  145,267 |  |  146,130 |  |  Charter condensed consolidated statements of operations  
|  |  |  |  |  |  |  |  |  |  
|  | Three months ended   |      | Nine months ended  |  
|  | September 30,  |  | September 30,  |  
|  | 2019 |  | 2018 |  | 2019 |  | 2018 |  
| Revenue | $ |  11,450 |  |  10,892 |  |  34,003 |  |  32,403 |  
| Cost and expenses: |  |  |  |  |  |  |  |  |  
| Operating costs and expenses (excluding depreciation and amortization) |   |  7,435 |  |  7,012 |  |  21,915 |  |  20,721 |  
| Depreciation and amortization |   |  2,415 |  |  2,482 |  |  7,465 |  |  7,784 |  
| Other operating (income) expenses, net |   |  14 |  |  18 |  |  71 |  |  116 |  
|  |  |  9,864 |  |  9,512 |  |  29,451 |  |  28,621 |  
| Operating income |  |  1,586 |  |  1,380 |  |  4,552 |  |  3,782 |  
| Interest expense, net |   |  (963) |  |  (901) |  |  (2,833) |  |  (2,630) |  
| Other income (expense), net |  |  (30) |  |  214 |  |  (220) |  |  172 |  
| Income tax benefit (expense) |   |  (126) |  |  (109) |  |  (329) |  |  (178) |  
| Net income (loss) |  |  467 |  |  584 |  |  1,170 |  |  1,146 |  
| Less: Net income attributable to noncontrolling interests |  |  (80) |  |  (91) |  |  (216) |  |  (212) |  
| Net income (loss) attributable to Charter shareholders  | $ |  387 |  |  493 |  |  954 |  |  934 |  |