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SCHEDULE I - CONDENSED FINANCIAL INFORMATION OF PARENT COMPANY - AEPTCO PARENT - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) - OHTCo and IMTCo - USD ($) | 1 Months Ended |
--- | --- | ---
Jan. 31, 2025 | Dec. 31, 2024
Subsequent Event |  |
Related Party Transaction [Line Items] |  |
Ownership percentage selling | 19.90% |
Proceeds from sale of noncontrolling interests | $ 2,820,000,000 |
Parent Company | Affiliated Entity | AEP TRANSMISSION COMPANY, LLC |  |
Related Party Transaction [Line Items] |  |
Notes receivable – affiliated |  | $ 2,820,000,000
Parent Company | Affiliated Entity | AEP TRANSMISSION COMPANY, LLC | Subsequent Event |  |
Related Party Transaction [Line Items] |  |
Ownership percentage selling | 19.90% |
Proceeds from sale of noncontrolling interests | $ 2,820,000,000 |

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