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Common Stock (Notes)
 9 Months Ended
Sep. 30, 2024
Common Stock [Abstract]  
Common Stock Common Stock
The following represents the Company's purchase of Charter Class A common stock and the effect on the consolidated statements of cash flows during the three and nine months ended September 30, 2024 and 2023.

Three Months Ended September 30,Nine Months Ended September 30,
2024202320242023
Shares$Shares$Shares$Shares$
Share buybacks 695,494 $218 1,833,928 $776 3,426,918 $1,048 5,092,677 $1,963 
Income tax withholding12,804 4 15,261 7 144,363 51 148,075 58 
Exercise cost52,713 — 94,111 — 78,937 — 147,903 — 
761,011 $222 1,943,300 $783 3,650,218 $1,099 5,388,655 $2,021 

Share buybacks above include shares of Charter Class A common stock purchased from Liberty Broadband Corporation (“Liberty Broadband”) as follows.

Three Months Ended September 30,Nine Months Ended September 30,
2024202320242023
Number of shares purchased354,108 — 698,011 120,149 
Amount of shares purchased$110 $— $226 $42 

As of September 30, 2024, Charter had remaining board authority to purchase an additional $599 million of Charter’s Class A common stock and/or Charter Holdings common units, excluding purchases from Liberty Broadband. The Company also
withholds shares of its Class A common stock in payment of income tax withholding owed by employees upon vesting of equity awards as well as exercise costs owed by employees upon exercise of stock options.
In 2023, Charter’s board of directors approved the retirement of the then currently held treasury stock and those shares were retired as of December 31, 2023. The Company accounts for treasury stock using the cost method and includes treasury stock as a component of total shareholders’ equity.