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Stockholders' Equity
 12 Months Ended
Dec. 31, 2023
Equity [Abstract]  
Stockholders' Equity Stockholders' Equity
Class A and Class B Common Stock and Class C Capital Stock
Our Board of Directors has authorized three classes of stock, Class A and Class B common stock, and Class C capital stock. The rights of the holders of each class of our common and capital stock are identical, except with respect to voting. Each share of Class A common stock is entitled to one vote per share. Each share of Class B common stock is entitled to 10 votes per share. Class C capital stock has no voting rights, except as required by applicable law. Shares of Class B common stock may be converted at any time at the option of the stockholder and automatically convert upon sale or transfer to Class A common stock.
Share Repurchases
In the years ended December 31, 2021, 2022, and 2023, we repurchased $50.3 billion, $59.3 billion, and $62.2 billion, respectively, of Alphabet's Class A and Class C shares.
In April 2023, the Board of Directors of Alphabet authorized the company to repurchase up to an additional $70.0 billion of its Class A and Class C shares. As of December 31, 2023, $36.3 billion remains available for Class A and Class C share repurchases.
The following table presents Class A and Class C shares repurchased and subsequently retired (in millions):
Year Ended December 31, 2022Year Ended December 31, 2023
SharesAmountSharesAmount
Class A share repurchases61$6,719 78$9,316 
Class C share repurchases46952,577 45052,868 
Total share repurchases(1)
530$59,296 528$62,184 
(1) Shares repurchased include unsettled repurchases as of December 31, 2023.
Class A and Class C shares are repurchased in a manner deemed in the best interest of the company and its stockholders, taking into account the economic cost and prevailing market conditions, including the relative trading prices and volumes of the Class A and Class C shares. Repurchases are executed from time to time, subject to general business and market conditions and other investment opportunities, through open market purchases or privately negotiated transactions, including through Rule 10b5-1 plans. The repurchase program does not have an expiration date.