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FINANCING ACTIVITIES - Schedule of Comparative Accounts Receivable Information (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
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Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024
Debt Disclosure [Abstract] |  |  |  |
Effective Interest Rates on Securitization of Accounts Receivable | 4.53% | 5.51% | 4.57% | 5.56%
Net Uncollectible Accounts Receivable Written-Off | $ 6.1 | $ 5.8 | $ 13.9 | $ 13.9

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- Definition Effective interest rate on the amount owed for securitized accounts receivables. + References No definition available. + Details
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- Definition Net uncollectible accounts receivable written off. + References No definition available. + Details
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Namespace Prefix: | aep_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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- References No definition available. + Details
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