v3.25.0.1
STOCK COMPENSATION (Tables)
 12 Months Ended
Dec. 31, 2024
Share-Based Payment Arrangement [Abstract]  
Schedule of employees participating in stock-based compensation programs
At December 31, 2024, the number of current and former employees participating in stock-based compensation programs for the Registrants was as follows:
Southern CompanyAlabama PowerGeorgia PowerMississippi PowerSouthern PowerSouthern Company Gas
Number of employees1,154 158 161 36 36 183 
Assumptions used in the pricing model and the weighted average grant-date fair value of performance share award units granted The following table shows the assumptions used in the pricing model and the weighted average grant-date fair value of TSR awards granted:
Year Ended December 31202420232022
Expected volatility19.1%30.0%29.6%
Interest rate4.0%3.8%1.7%
Weighted average grant-date fair value$80.99$76.83$79.69
Schedule of compensation costs and related tax benefits
Southern Company's total PSU compensation cost and the related tax benefit recognized in income for the years ended December 31, 2024, 2023, and 2022 were as follows:
202420232022
(in millions)
Compensation cost recognized in income$102 $107 $101 
Tax benefit of compensation cost recognized in income27 28 26 
Southern Company's total RSU compensation cost and the related tax benefit recognized in income for the years ended December 31, 2024, 2023, and 2022 were as follows:
202420232022
(in millions)
Compensation cost recognized in income$30 $30 $26 
Tax benefit of compensation cost recognized in income8 8 7 
Southern Company's total intrinsic value of options exercised and the related tax benefit for the years ended December 31, 2024, 2023, and 2022 were as follows:
202420232022
(in millions)
Intrinsic value of options exercised$10 $18 $49 
Tax benefit of options exercised2 4 12