v3.25.0.1
STOCK COMPENSATION - Schedule of Employees Participating in Stock-Based Compensation Programs (Details)
Dec. 31, 2024
employee
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Number of employees 1,154
Alabama Power  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Number of employees 158
Georgia Power  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Number of employees 161
Mississippi Power  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Number of employees 36
Southern Power  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Number of employees 36
Southern Company Gas  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Number of employees 183