v3.25.2
BUSINESS SEGMENTS - Narrative (Details)
6 Months Ended
Jun. 30, 2025
segment
company
Segment Reporting Information [Line Items]  
Number of reportable segments 1
AEP Texas  
Segment Reporting Information [Line Items]  
Number of reportable segments 1
APCo  
Segment Reporting Information [Line Items]  
Number of reportable segments 1
I&M  
Segment Reporting Information [Line Items]  
Number of reportable segments 1
OPCo  
Segment Reporting Information [Line Items]  
Number of reportable segments 1
PSO  
Segment Reporting Information [Line Items]  
Number of reportable segments 1
SWEPCo  
Segment Reporting Information [Line Items]  
Number of reportable segments 1
AEPTCo  
Segment Reporting Information [Line Items]  
Number of reportable segments 1
Number of operating segments 7
Number of FERC-regulated transmission-only electric utilities | company 7