CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Statement of Comprehensive Income [Abstract]
Consolidated net income	$ 1,506	$ 10,115	$ 3,745
Net impact of interest rate derivative instruments	0	5	8
Foreign currency translation adjustment	(1)	1	(2)
Consolidated comprehensive income	1,505	10,121	3,751
Less: Comprehensive income attributable to noncontrolling interests	(276)	(220)	(223)
Comprehensive income attributable to Charter shareholders	$ 1,229	$ 9,901	$ 3,528