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RATE MATTERS - AEP Texas Rate Matters (Details) - AEP Texas - USD ($) $ in Millions |  | 6 Months Ended
--- | --- | ---
Jun. 20, 2025 | Jun. 30, 2025
Public Utilities, General Disclosures [Line Items] |  |
Requested annual base rate increase |  | $ 43
Regulatory asset, recovery period | 18 months |
Eligible costs deferred | $ 25 |

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- Definition Regulatory Asset, Recovery Period + References No definition available. + Details
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- Definition Regulatory Assets, Eligible Costs Deferred + References No definition available. + Details
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Namespace Prefix: | aep_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Amount of public utility's requested rate increase (decrease) with regulatory agency. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |