CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Income Statement [Abstract]
REVENUES	$ 10,854	$ 10,357	$ 21,511	$ 20,521
COSTS AND EXPENSES:
Operating costs and expenses (exclusive of items shown separately below)	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
Total costs and expenses	9,494	9,305	19,109	18,528
Income from operations	1,360	1,052	2,402	1,993
OTHER EXPENSES:
Interest expense, net	(878)	(749)	(1,729)	(1,462)
Loss on extinguishment of debt	0	(1)	0	(35)
Loss on financial instruments, net	(75)	(70)	(12)	(32)
Other income (expense), net	(27)	11	(30)	15
Total other expenses, net	(980)	(809)	(1,771)	(1,514)
Income before income taxes	380	243	631	479
Income tax expense	(41)	(48)	(69)	(73)
Consolidated net income	339	195	562	406
Less: Net income attributable to noncontrolling interests	(66)	(56)	(121)	(112)
Net income attributable to Charter shareholders	$ 273	$ 139	$ 441	$ 294
EARNINGS PER COMMON SHARE ATTRIBUTABLE TO CHARTER SHAREHOLDERS:
Basic (dollars per share)	$ 1.17	$ 0.53	$ 1.87	$ 1.11
Diluted (dollars per share)	$ 1.15	$ 0.52	$ 1.84	$ 1.09
Weighted average common shares outstanding, basic (shares)	234,241,769	263,460,911	235,992,306	266,217,549
Weighted average common shares outstanding, diluted (shares)	237,073,566	267,309,261	239,246,727	270,249,433