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	Retained Earnings	Accumulated Other Comprehensive Loss	Total Charter Shareholders’ Equity	Noncontrolling Interests
Balance at Dec. 31, 2016	$ 50,366	$ 0	$ 0	$ 39,413	$ 733	$ (7)	$ 40,139	$ 10,227
Roll Forward of Consolidated Shareholders' Equity:
Consolidated net income	10,115	0	0	0	9,895	0	9,895	220
Stock compensation expense	261	0	0	261	0	0	261	0
Accelerated vesting of equity awards	49	0	0	49	0	0	49	0
Exercise of stock options	116	0	0	116	0	0	116	0
Changes in accumulated other comprehensive loss, net	6	0	0	0	0	6	6
Cumulative effect of accounting change	140	0	0	9	131	0	140	0
Purchases and retirement of treasury stock	(11,715)	0	0	(4,788)	(6,927)	0	(11,715)	0
Purchase of noncontrolling interest, net of tax	(1,482)	0	0	(295)	0	0	(295)	(1,187)
Exchange of Charter Holdings units held by A/N, net of tax and TRA effects	(33)	0	0	265	0	0	265	(298)
Change in noncontrolling interest ownership, net of tax	(139)	0	0	223	0	0	223	(362)
Distributions to noncontrolling interest	(153)	0	0	0	0	0	0	(153)
Balance at Dec. 31, 2017	47,531	0	0	35,253	3,832	(1)	39,084	8,447
Roll Forward of Consolidated Shareholders' Equity:
Consolidated net income	1,506	0	0	0	1,230	0	1,230	276
Stock compensation expense	285	0	0	285	0	0	285	0
Accelerated vesting of equity awards	5	0	0	5	0	0	5	0
Exercise of stock options	69	0	0	69	0	0	69	0
Changes in accumulated other comprehensive loss, net	(1)	0	0	0	0	(1)	(1)
Cumulative effect of accounting change	69	0	0	0	62	0	62	7
Purchases and retirement of treasury stock	(4,399)	0	0	(2,055)	(2,344)	0	(4,399)	0
Purchase of noncontrolling interest, net of tax	(622)	0	0	(104)	0	0	(104)	(518)
Change in noncontrolling interest ownership, net of tax	(18)	0	0	54	0	0	54	(72)
Distributions to noncontrolling interest	(153)	0	0	0	0	0	0	(153)
Balance at Dec. 31, 2018	44,272	0	0	33,507	2,780	(2)	36,285	7,987
Roll Forward of Consolidated Shareholders' Equity:
Consolidated net income	1,992	0	0	0	1,668	0	1,668	324
Stock compensation expense	315	0	0	315	0	0	315	0
Exercise of stock options	118	0	0	118	0	0	118	0
Changes in accumulated other comprehensive loss, net	2	0	0	0	0	2	2
Purchases and retirement of treasury stock	(6,873)	0	0	(2,465)	(4,408)	0	(6,873)	0
Purchase of noncontrolling interest, net of tax	(805)	0	0	(240)	0	0	(240)	(565)
Change in noncontrolling interest ownership, net of tax	(56)	0	0	170	0	0	170	(226)
Distributions to noncontrolling interest	(154)	0	0	0	0	0	0	(154)
Balance at Dec. 31, 2019	$ 38,811	$ 0	$ 0	$ 31,405	$ 40	$ 0	$ 31,445	$ 7,366