v3.26.3
VARIABLE INTEREST ENTITIES AND EQUITY METHOD INVESTMENTS - Schedule of Consolidated Assets And Liabilities of Variable Interest Entities (Details) - USD ($)
$ in Millions
Sep. 30, 2026
Jun. 30, 2026
Mar. 31, 2026
Dec. 31, 2025
Sep. 30, 2025
Jun. 30, 2025
Mar. 31, 2025
Dec. 31, 2024
ASSETS                
Current Assets $ 7,840     $ 6,052        
Net Property, Plant and Equipment 100,228     92,374        
Other Noncurrent Assets 17,627     16,034        
TOTAL ASSETS 125,695     114,460        
LIABILITIES AND EQUITY                
Current Liabilities 15,286     13,314        
Noncurrent Liabilities 76,290     68,890        
Equity 34,043 $ 33,289 $ 32,978 32,218 $ 31,479 $ 30,968 $ 27,364 $ 26,986
TOTAL LIABILITIES AND EQUITY 125,695     114,460        
SWEPCo                
ASSETS                
Current Assets 1,119     556        
Net Property, Plant and Equipment 12,047     11,341        
Other Noncurrent Assets 1,664     1,627        
TOTAL ASSETS 14,830     13,524        
LIABILITIES AND EQUITY                
Current Liabilities 1,520     1,885        
Noncurrent Liabilities 7,830     6,740        
Equity 5,480 $ 5,250 $ 5,083 4,899 $ 4,708 $ 4,519 $ 3,953 $ 3,905
TOTAL LIABILITIES AND EQUITY 14,830     13,524        
I&M                
ASSETS                
Current Assets 682     784        
Net Property, Plant and Equipment 9,498     7,944        
Other Noncurrent Assets 6,228     5,897        
TOTAL ASSETS 16,408     14,625        
LIABILITIES AND EQUITY                
Current Liabilities 1,340     949        
Noncurrent Liabilities 10,948     9,892        
TOTAL LIABILITIES AND EQUITY 16,408     14,625        
AEP Texas                
ASSETS                
Current Assets 1,108     509        
Net Property, Plant and Equipment 17,554     15,864        
Other Noncurrent Assets 796     702        
TOTAL ASSETS 19,458     17,075        
LIABILITIES AND EQUITY                
Current Liabilities 2,495     1,418        
Noncurrent Liabilities 10,733     9,831        
TOTAL LIABILITIES AND EQUITY 19,458     17,075        
APCo                
ASSETS                
Current Assets 1,326     1,033        
Net Property, Plant and Equipment 14,184     14,713        
Other Noncurrent Assets 3,322     2,046        
TOTAL ASSETS 18,832     17,792        
LIABILITIES AND EQUITY                
Current Liabilities 2,540     2,384        
Noncurrent Liabilities 10,363     9,228        
TOTAL LIABILITIES AND EQUITY 18,832     17,792        
Variable Interest Entity, Primary Beneficiary | AEP Credit                
ASSETS                
Current Assets 1,561     1,232        
Net Property, Plant and Equipment 0     0        
Other Noncurrent Assets 11     10        
TOTAL ASSETS 1,572     1,242        
LIABILITIES AND EQUITY                
Current Liabilities 1,446     1,176        
Noncurrent Liabilities 0     1        
Equity 126     65        
TOTAL LIABILITIES AND EQUITY 1,572     1,242        
Variable Interest Entity, Primary Beneficiary | Protected Cell of EIS                
ASSETS                
Current Assets 257     223        
Net Property, Plant and Equipment 0     0        
Other Noncurrent Assets 2     0        
TOTAL ASSETS 259     223        
LIABILITIES AND EQUITY                
Current Liabilities 69     56        
Noncurrent Liabilities 134     102        
Equity 56     65        
TOTAL LIABILITIES AND EQUITY 259     223        
Variable Interest Entity, Primary Beneficiary | Transource Energy                
ASSETS                
Current Assets 55     45        
Net Property, Plant and Equipment 692     658        
Other Noncurrent Assets 27     4        
TOTAL ASSETS 774     707        
LIABILITIES AND EQUITY                
Current Liabilities 49     50        
Noncurrent Liabilities 333     298        
Equity 392     359        
TOTAL LIABILITIES AND EQUITY 774     707        
Variable Interest Entity, Primary Beneficiary | SWEPCo | Sabine                
ASSETS                
Current Assets 1     1        
Net Property, Plant and Equipment 0     0        
Other Noncurrent Assets 57     80        
TOTAL ASSETS 58     81        
LIABILITIES AND EQUITY                
Current Liabilities 12     15        
Noncurrent Liabilities 51     66        
Equity (5)     0        
TOTAL LIABILITIES AND EQUITY 58     81        
Variable Interest Entity, Primary Beneficiary | SWEPCo | Recovery Funding                
ASSETS                
Current Assets 9     17        
Net Property, Plant and Equipment 0     0        
Other Noncurrent Assets 302     312        
TOTAL ASSETS 311     329        
LIABILITIES AND EQUITY                
Current Liabilities 19     23        
Noncurrent Liabilities 290     304        
Equity 2     2        
TOTAL LIABILITIES AND EQUITY 311     329        
Variable Interest Entity, Primary Beneficiary | I&M | DCC Fuel                
ASSETS                
Current Assets 75     118        
Net Property, Plant and Equipment 132     227        
Other Noncurrent Assets 67     118        
TOTAL ASSETS 274     463        
LIABILITIES AND EQUITY                
Current Liabilities 75     118        
Noncurrent Liabilities 199     345        
Equity 0     0        
TOTAL LIABILITIES AND EQUITY 274     463        
Variable Interest Entity, Primary Beneficiary | AEP Texas | AEP Texas Restoration Funding                
ASSETS                
Current Assets 15     18        
Net Property, Plant and Equipment 0     0        
Other Noncurrent Assets 80     98        
TOTAL ASSETS 95     116        
LIABILITIES AND EQUITY                
Current Liabilities 31     31        
Noncurrent Liabilities 63     84        
Equity 1     1        
TOTAL LIABILITIES AND EQUITY 95     116        
Variable Interest Entity, Primary Beneficiary | AEP Texas | AEP Texas Restoration Funding | Intersegment Eliminations                
ASSETS                
Other Noncurrent Assets (1)     (1)        
Variable Interest Entity, Primary Beneficiary | AEP Texas | AEP Texas Restoration Funding | Intersegment Eliminations                
ASSETS                
Other Noncurrent Assets (3)     (4)        
Variable Interest Entity, Primary Beneficiary | APCo | APCo Appalachian Consumer Rate Relief Funding                
ASSETS                
Current Assets 10     18        
Net Property, Plant and Equipment 0     0        
Other Noncurrent Assets 57     79        
TOTAL ASSETS 67     97        
LIABILITIES AND EQUITY                
Current Liabilities 31     31        
Noncurrent Liabilities 34     64        
Equity 2     2        
TOTAL LIABILITIES AND EQUITY 67     97        
Variable Interest Entity, Primary Beneficiary | APCo | Recovery Funding                
ASSETS                
Current Assets 52              
Net Property, Plant and Equipment 0              
Other Noncurrent Assets 1,350              
TOTAL ASSETS 1,402              
LIABILITIES AND EQUITY                
Current Liabilities 62              
Noncurrent Liabilities 1,333              
Equity 7              
TOTAL LIABILITIES AND EQUITY 1,402              
Variable Interest Entity, Primary Beneficiary | KPCo | Recovery Funding                
ASSETS                
Current Assets 12     24        
Net Property, Plant and Equipment 0     0        
Other Noncurrent Assets 452     462        
TOTAL ASSETS 464     486        
LIABILITIES AND EQUITY                
Current Liabilities 17     30        
Noncurrent Liabilities 445     454        
Equity 2     2        
TOTAL LIABILITIES AND EQUITY 464     486        
Variable Interest Entity, Primary Beneficiary | KPCo | Recovery Funding | Intersegment Eliminations                
ASSETS                
Other Noncurrent Assets $ (16)     $ (16)