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COMMITMENTS, GUARANTEES AND CONTINGENCIES (Tables)
3 Months Ended
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:
CompanyAmountMaturity
 (in millions) 
AEP$252.1 April 2025 to March 2026
SWEPCo11.2 March 2026
Maximum Potential Loss By Registrants Under Lease Agreements
CompanyMaximum
Potential Loss
(in millions)
AEP$38.4 
AEP Texas8.4 
APCo4.9 
I&M3.8 
OPCo6.5 
PSO3.6 
SWEPCo4.4