v3.25.0.1
ACQUISITIONS AND DISPOSITIONS - Alabama Power Narrative (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Business Acquisition [Line Items]      
Capital expenditures related to qualifying projects $ 8,955 $ 9,095 $ 7,923
Alabama Power      
Business Acquisition [Line Items]      
Capital expenditures related to qualifying projects $ 1,881 $ 2,022 2,016
Alabama Power | Calhoun Generating Station      
Business Acquisition [Line Items]      
Purchase price     179
Capital expenditures related to qualifying projects     $ 171