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RATE MATTERS - AEP Texas Rate Matters (Details) - 2024 AEP Texas Base Rate Case - AEP TEXAS INC. - USD ($) $ in Millions | 1 Months Ended
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Jul. 31, 2024 | Feb. 29, 2024
Public Utilities, General Disclosures [Line Items] |  |
Requested annual base rate increase |  | $ 164
Requested return on equity |  | 10.60%
Requested debt capital structure |  | 55.00%
Requested equity capital structure |  | 45.00%
Approved annual base rate increase | $ 70 |
Approved return on equity | 9.76% |
Approved debt capital structure | 57.50% |
Approved equity capital structure | 42.50% |

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