Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Earnings Per Share [Abstract]
Antidilutive securities excluded from computation of earnings per share (in shares)	18,000,000	20,000,000	19,000,000
Net income attributable to Charter shareholders	$ 4,557	$ 5,055	$ 4,654
Charter Holdings convertible preferred units	0	0	70
Net income attributable to Charter shareholders after assumed conversions	$ 4,557	$ 5,055	$ 4,724
Weighted average common shares outstanding, basic	149,208,188	161,501,355	183,669,369
Assumed exercise or issuance of shares relating to stock plans	2,758,125	2,932,241	5,052,041
Weighted average Charter Holdings convertible preferred units	0	0	4,321,538
Weighted average common shares outstanding, diluted	151,966,313	164,433,596	193,042,948
Basic earnings per common share attributable to Charter shareholders	$ 30.54	$ 31.30	$ 25.34
Diluted earnings per common share attributable to Charter shareholders	$ 29.99	$ 30.74	$ 24.47