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STOCK COMPENSATION (Tables)
12 Months Ended
Dec. 31, 2025
Share-Based Payment Arrangement [Abstract]  
Schedule of employees participating in stock-based compensation programs
At December 31, 2025, the number of current and former employees participating in stock-based compensation programs for the Registrants was as follows:
Southern
Company
Alabama
Power
Georgia
Power
Mississippi
Power
Southern
Power
Southern
Company
Gas
Number of employees1,189 163 185 37 33 182 
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 31202520242023
Expected volatility19.7%19.1%30.0%
Interest rate4.1%4.0%3.8%
Weighted average grant-date fair value$91.26$80.99$76.83
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, 2025, 2024, and 2023 were as follows:
202520242023
(in millions)
Compensation cost recognized in income$102 $102 $107 
Tax benefit of compensation cost recognized in income26 27 28 
Southern Company's total RSU compensation cost and the related tax benefit recognized in income for the years ended December 31, 2025, 2024, and 2023 were as follows:
202520242023
(in millions)
Compensation cost recognized in income$33 $30 $30 
Tax benefit of compensation cost recognized in income9