RELATED PARTY AND PARTY-IN-INTEREST TRANSACTIONS (Details) - EBP 002 - AEP Stock - USD ($)	12 Months Ended
Dec. 31, 2025	Dec. 31, 2024
EBP, Related Party and Party-in-Interest Transactions [Line Items]
Number of shares held in Plan (in shares)	2,468,439	2,754,068
Cost basis	$ 155,820,501	$ 165,165,921
Number of acquired shares (in shares)	174,947	128,344
Acquired fair value	$ 18,839,862	$ 11,315,945
Number of disposed shares (in shares)	382,880	665,124
Fair value of disposed shares	$ 41,516,019	$ 39,431,676
Dividend income	$ 9,650,745	$ 11,081,160

Amount of increase in net asset available for benefit from dividend income on investment held by employee stock purchase, saving, or similar plan (employee benefit plan (EBP)).

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Cost of investment, excluding plan interest in master trust, acquired by employee stock purchase, saving, or similar plan (employee benefit plan (EBP)).

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Cost of investment, excluding plan interest in master trust, held by employee stock purchase, saving, or similar plan (employee benefit plan (EBP)). Includes, but is not limited to, derivative, investment measured at net asset value per share as practical expedient, and insurance contract.

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Number of shares or units of investment held by employee stock purchase, saving, or similar plan (employee benefit plan (EBP)).

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