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Earnings Per Share (Tables)
12 Months Ended
Dec. 31, 2021
Earnings Per Share [Abstract]  
Schedule of Earnings per Share The following is the computation of diluted earnings per common share for the years presented.
Year Ended December 31,
202120202019
Numerator:
Net income attributable to Charter shareholders$4,654 $3,222 $1,668 
Effect of dilutive securities:
Charter Holdings convertible preferred units70 — — 
Net income attributable to Charter shareholders after assumed conversions$4,724 $3,222 $1,668 
Denominator:
Weighted average common shares outstanding, basic183,669,369 203,316,483 219,506,735 
Effect of dilutive securities:
Assumed exercise or issuance of shares relating to stock plans5,052,041 5,956,764 4,279,645 
Weighted average Charter Holdings convertible preferred units4,321,538 — — 
Weighted average common shares outstanding, diluted193,042,948 209,273,247 223,786,380 
Basic earnings per common share attributable to Charter shareholders$25.34 $15.85 $7.60 
Diluted earnings per common share attributable to Charter shareholders$24.47 $15.40 $7.45