| 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  | 
 
 
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| 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  | 
 
 
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