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COMMITMENTS, GUARANTEES AND CONTINGENCIES (Tables) | 3 Months Ended
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Mar. 31, 2025
Commitments and Contingencies Disclosure [Abstract] |
Maximum Future Payments for Letters of Credit Issued Under the Uncommitted Facilities | The Registrants’ maximum future payments for letters of credit issued under the uncommitted facilities as of March 31, 2025 were as follows:
Company |  | Amount |  | Maturity
|  | (in millions) |  |
AEP |  | $ | 252.1 |  |  | April 2025 to March 2026
SWEPCo |  | 11.2 |  |  | March 2026
Maximum Potential Loss By Registrants Under Lease Agreements |
Company |  | Maximum Potential Loss
|  | (in millions)
AEP |  | $ | 38.4 |
AEP Texas |  | 8.4 |
APCo |  | 4.9 |
I&M |  | 3.8 |
OPCo |  | 6.5 |
PSO |  | 3.6 |
SWEPCo |  | 4.4 |

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