CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY - USD ($) $ in Millions	Total	Common Stock Class A Common Stock	Common Stock Class B Common Stock	Additional Paid-in Capital	Accumulated Deficit	Treasury Stock	Total Charter Shareholders’ Equity	Noncontrolling Interests
Balance at Dec. 31, 2020	$ 30,281	$ 0	$ 0	$ 29,000	$ (5,195)	$ 0	$ 23,805	$ 6,476
Rollforward of Consolidated Shareholders' Equity:
Consolidated net income	921	0	0	0	807	0	807	114
Stock compensation expense	134	0	0	134	0	0	134	0
Exercise of stock options	9	0	0	9	0	0	9	0
Purchases of treasury stock	(3,652)	0	0	0	0	(3,652)	(3,652)	0
Purchase of noncontrolling interest, net of tax	(429)	0	0	(237)	0	0	(237)	(192)
Change in noncontrolling interest ownership, net of tax	(44)	0	0	131	0	0	131	(175)
Distributions to noncontrolling interest	(39)	0	0	0	0	0	0	(39)
Balance at Mar. 31, 2021	27,181	0	0	29,037	(4,388)	(3,652)	20,997	6,184
Balance at Dec. 31, 2020	30,281	0	0	29,000	(5,195)	0	23,805	6,476
Rollforward of Consolidated Shareholders' Equity:
Consolidated net income	2,079
Purchases of treasury stock	(7,168)
Balance at Jun. 30, 2021	24,086	0	0	29,878	(3,368)	(7,168)	19,342	4,744
Balance at Mar. 31, 2021	27,181	0	0	29,037	(4,388)	(3,652)	20,997	6,184
Rollforward of Consolidated Shareholders' Equity:
Consolidated net income	1,158	0	0	0	1,020	0	1,020	138
Stock compensation expense	100	0	0	100	0	0	100	0
Exercise of stock options	17	0	0	17	0	0	17	0
Purchases of treasury stock	(3,516)	0	0	0	0	(3,516)	(3,516)	0
Purchase of noncontrolling interest, net of tax	(492)	0	0	(279)	0	0	(279)	(213)
Change in noncontrolling interest ownership, net of tax	(330)	0	0	1,003	0	0	1,003	(1,333)
Distributions to noncontrolling interest	(32)	0	0	0	0	0	0	(32)
Balance at Jun. 30, 2021	24,086	0	0	29,878	(3,368)	(7,168)	19,342	4,744
Balance at Dec. 31, 2021	18,156	0	0	26,725	(12,675)	0	14,050	4,106
Rollforward of Consolidated Shareholders' Equity:
Consolidated net income	1,389	0	0	0	1,203	0	1,203	186
Stock compensation expense	147	0	0	147	0	0	147	0
Exercise of stock options	1	0	0	1	0	0	1	0
Purchases of treasury stock	(3,333)	0	0	0	0	(3,333)	(3,333)	0
Purchase of noncontrolling interest, net of tax	(353)	0	0	(197)	0	0	(197)	(156)
Change in noncontrolling interest ownership, net of tax	(61)	0	0	189	0	0	189	(250)
Distributions to noncontrolling interest	(2)	0	0	0	0	0	0	(2)
Balance at Mar. 31, 2022	15,944	0	0	26,865	(11,472)	(3,333)	12,060	3,884
Balance at Dec. 31, 2021	18,156	0	0	26,725	(12,675)	0	14,050	4,106
Rollforward of Consolidated Shareholders' Equity:
Consolidated net income	3,097
Purchases of treasury stock	(7,020)
Balance at Jun. 30, 2022	13,513	0	0	26,900	(10,001)	(7,020)	9,879	3,634
Balance at Mar. 31, 2022	15,944	0	0	26,865	(11,472)	(3,333)	12,060	3,884
Rollforward of Consolidated Shareholders' Equity:
Consolidated net income	1,708	0	0	0	1,471	0	1,471	237
Stock compensation expense	104	0	0	104	0	0	104	0
Exercise of stock options	4	0	0	4	0	0	4	0
Purchases of treasury stock	(3,687)	0	0	0	0	(3,687)	(3,687)	0
Purchase of noncontrolling interest, net of tax	(494)	0	0	(256)	0	0	(256)	(238)
Change in noncontrolling interest ownership, net of tax	(61)	0	0	183	0	0	183	(244)
Distributions to noncontrolling interest	(5)	0	0	0	0	0	0	(5)
Balance at Jun. 30, 2022	$ 13,513	$ 0	$ 0	$ 26,900	$ (10,001)	$ (7,020)	$ 9,879	$ 3,634