| Schedule of allocation of excess basis within memo accounts used for equity accounting purposes |  
		
			The excess basis in our investment in Charter has increased to $3,159 million as of June 30, 2018 allocated within memo accounts used for equity accounting purposes as follows (amounts in millions): 
		 
			
				| 
						  | 
						  | 
						  | 
						  | 
						  | 
						  |  
				| 
						  | 
						  | 
						  | 
						June 30,  | 
						  | 
						December 31,  |  
				| 
						  | 
						  | 
						  | 
						2018 | 
						  | 
						2017 |  
				| 
						Property and equipment | 
						     | 
						$ | 
						 349 | 
						  | 
						 361 |  
				| 
						Customer relationships | 
						  | 
						  | 
						 712 | 
						  | 
						 689 |  
				| 
						Franchise fees | 
						  | 
						  | 
						 1,753 | 
						  | 
						 1,670 |  
				| 
						Trademarks | 
						  | 
						  | 
						 29 | 
						  | 
						 29 |  
				| 
						Goodwill | 
						  | 
						  | 
						 1,104 | 
						  | 
						 986 |  
				| 
						Debt | 
						  | 
						  | 
						 (103) | 
						  | 
						 (98) |  
				| 
						Deferred income tax liability | 
						  | 
						  | 
						 (685) | 
						  | 
						 (662) |  
				| 
						  | 
						  | 
						$ | 
						 3,159 | 
						  | 
						 2,975 | 
			 
		 | 
| 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, 2018 | 
						  | 
						December 31, 2017 | 
						  |  
				| 
						Current assets | 
						  | 
						$ | 
						 2,750 | 
						  | 
						 2,555 | 
						  |  
				| 
						Property and equipment, net | 
						  | 
						  | 
						 34,411 | 
						  | 
						 33,888 | 
						  |  
				| 
						Goodwill | 
						  | 
						  | 
						 29,554 | 
						  | 
						 29,554 | 
						  |  
				| 
						Intangible assets, net | 
						  | 
						  | 
						 78,029 | 
						  | 
						 79,270 | 
						  |  
				| 
						Other assets | 
						  | 
						  | 
						 1,507 | 
						  | 
						 1,356 | 
						  |  
				| 
						Total assets | 
						  | 
						$ | 
						 146,251 | 
						  | 
						 146,623 | 
						  |  
				| 
						Current liabilities | 
						  | 
						  | 
						 14,024 | 
						  | 
						 11,090 | 
						  |  
				| 
						Deferred income taxes | 
						  | 
						  | 
						 17,376 | 
						  | 
						 17,314 | 
						  |  
				| 
						Long-term debt | 
						  | 
						  | 
						 66,730 | 
						  | 
						 68,186 | 
						  |  
				| 
						Other liabilities | 
						  | 
						  | 
						 2,479 | 
						  | 
						 2,502 | 
						  |  
				| 
						Equity | 
						  | 
						  | 
						 45,642 | 
						  | 
						 47,531 | 
						  |  
				| 
						Total liabilities and shareholders’ equity | 
						  | 
						$ | 
						 146,251 | 
						  | 
						 146,623 | 
						  | 
			Charter condensed consolidated statements of operations
		 
			 
		 
			
				| 
						  | 
						  | 
						  | 
						  | 
						  | 
						  | 
						  | 
						  | 
						  |  
				| 
						  | 
						Three months ended   | 
						     | 
						Six months ended  |  
				| 
						  | 
						June 30,  | 
						  | 
						June 30,  |  
				| 
						  | 
						2018 | 
						  | 
						2017 | 
						  | 
						2018 | 
						  | 
						2017 |  
				| 
						Revenue | 
						$ | 
						 10,854 | 
						  | 
						 10,357 | 
						  | 
						 21,511 | 
						  | 
						 20,521 |  
				| 
						Cost and expenses: | 
						  | 
						  | 
						  | 
						  | 
						  | 
						  | 
						  | 
						  |  
				| 
						Operating costs and expenses (excluding depreciation and amortization) | 
						  | 
						 (6,873) | 
						  | 
						 (6,575) | 
						  | 
						 (13,709) | 
						  | 
						 (13,154) |  
				| 
						Depreciation and amortization | 
						  | 
						 (2,592) | 
						  | 
						 (2,595) | 
						  | 
						 (5,302) | 
						  | 
						 (5,145) |  
				| 
						Other operating expenses, net | 
						  | 
						 (29) | 
						  | 
						 (135) | 
						  | 
						 (98) | 
						  | 
						 (229) |  
				| 
						  | 
						  | 
						 (9,494) | 
						  | 
						 (9,305) | 
						  | 
						 (19,109) | 
						  | 
						 (18,528) |  
				| 
						Operating income | 
						  | 
						 1,360 | 
						  | 
						 1,052 | 
						  | 
						 2,402 | 
						  | 
						 1,993 |  
				| 
						Interest expense, net | 
						  | 
						 (878) | 
						  | 
						 (749) | 
						  | 
						 (1,729) | 
						  | 
						 (1,462) |  
				| 
						Other income (expense), net | 
						  | 
						 (102) | 
						  | 
						 (60) | 
						  | 
						 (42) | 
						  | 
						 (52) |  
				| 
						Income tax benefit (expense) | 
						  | 
						 (41) | 
						  | 
						 (48) | 
						  | 
						 (69) | 
						  | 
						 (73) |  
				| 
						Net income (loss) | 
						  | 
						 339 | 
						  | 
						 195 | 
						  | 
						 562 | 
						  | 
						 406 |  
				| 
						Less: Net income attributable to noncontrolling interests | 
						  | 
						 (66) | 
						  | 
						 (56) | 
						  | 
						 (121) | 
						  | 
						 (112) |  
				| 
						Net income (loss) attributable to Charter shareholders  | 
						$ | 
						 273 | 
						  | 
						 139 | 
						  | 
						 441 | 
						  | 
						 294 | 
			 
		 |