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Noncontrolling Interests (Notes)
9 Months Ended
Sep. 30, 2023
Noncontrolling Interests [Abstract]  
Noncontrolling Interests Noncontrolling InterestsNoncontrolling interests represents consolidated subsidiaries of which the Company owns less than 100%. The Company is a holding company whose principal asset is a controlling equity interest in Charter Holdings, the indirect owner of the
Company’s cable systems. Noncontrolling interests on the Company’s balance sheet consist primarily of Advance/Newhouse Partnership's (“A/N”) equity interests in Charter Holdings, which is comprised of a common ownership interest.

Net income of Charter Holdings attributable to A/N’s common noncontrolling interest for financial reporting purposes is based on the weighted average effective common ownership interest of approximately 11%, and was $181 million and $532 million for the three and nine months ended September 30, 2023, respectively, and $182 million and $604 million for the three and nine months ended September 30, 2022, respectively.

The following table represents Charter Holdings' purchase of Charter Holdings common units from A/N and the effect on total shareholders' equity during the three and nine months ended September 30, 2023 and 2022.

Three Months Ended September 30, Nine Months Ended September 30,
2023202220232022
Number of units purchased196,409 836,655 677,584 2,557,256 
Amount of units purchased$78 $385 $254 $1,379 
Decrease in noncontrolling interest based on carrying value$(44)$(179)$(146)$(573)
Decrease in additional paid-in-capital, net of tax$(25)$(155)$(81)$(608)

Total shareholders' equity was also adjusted during the three and nine months ended September 30, 2023 and 2022 due to the changes in Charter Holdings' ownership as follows.

Three Months Ended September 30, Nine Months Ended September 30,
2023202220232022
Increase (decrease) in noncontrolling interest $(23)$(127)$(53)$(621)
Increase (decrease) in additional paid-in-capital, net of tax$18 $96 $40 $468