0000001 - Document - Cover Page link:presentationLink link:calculationLink link:definitionLink 9952151 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF INCOME link:presentationLink link:calculationLink link:definitionLink 9952152 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) link:presentationLink link:calculationLink link:definitionLink 9952153 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952154 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - Calc Fix link:presentationLink link:calculationLink link:definitionLink 9952155 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY link:presentationLink link:calculationLink link:definitionLink 9952156 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952157 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS link:presentationLink link:calculationLink link:definitionLink 9952158 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952159 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS - (Calc Fix) link:presentationLink link:calculationLink link:definitionLink 9952160 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS link:presentationLink link:calculationLink link:definitionLink 9952161 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF INCOME - AEP Texas link:presentationLink link:calculationLink link:definitionLink 9952162 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - AEP Texas link:presentationLink link:calculationLink link:definitionLink 9952163 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - AEP Texas (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952164 - 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Statement - CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - SWEPCo (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952201 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY - SWEPCo link:presentationLink link:calculationLink link:definitionLink 9952202 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS - SWEPCo link:presentationLink link:calculationLink link:definitionLink 9952203 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS - SWEPCo (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952204 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - SWEPCo link:presentationLink link:calculationLink link:definitionLink 9952205 - Disclosure - SIGNIFICANT ACCOUNTING MATTERS link:presentationLink link:calculationLink link:definitionLink 9952206 - Disclosure - NEW ACCOUNTING STANDARDS link:presentationLink link:calculationLink link:definitionLink 9952207 - Disclosure - COMPREHENSIVE INCOME link:presentationLink link:calculationLink link:definitionLink 9952208 - Disclosure - RATE MATTERS link:presentationLink link:calculationLink link:definitionLink 9952209 - Disclosure - COMMITMENTS, GUARANTEES AND CONTINGENCIES link:presentationLink link:calculationLink link:definitionLink 9952210 - Disclosure - ACQUISITIONS, DISPOSITIONS AND IMPAIRMENTS link:presentationLink link:calculationLink link:definitionLink 9952211 - Disclosure - BENEFIT PLANS link:presentationLink link:calculationLink link:definitionLink 9952212 - Disclosure - BUSINESS SEGMENTS link:presentationLink link:calculationLink link:definitionLink 9952213 - Disclosure - DERIVATIVES AND HEDGING link:presentationLink link:calculationLink link:definitionLink 9952214 - Disclosure - FAIR VALUE MEASUREMENTS link:presentationLink link:calculationLink link:definitionLink 9952215 - Disclosure - INCOME TAXES link:presentationLink link:calculationLink link:definitionLink 9952216 - Disclosure - FINANCING ACTIVITIES link:presentationLink link:calculationLink link:definitionLink 9952217 - Disclosure - VARIABLE INTEREST ENTITIES AND EQUITY METHOD INVESTMENTS link:presentationLink link:calculationLink link:definitionLink 9952218 - Disclosure - PROPERTY, PLANT AND EQUIPMENT link:presentationLink link:calculationLink link:definitionLink 9952219 - Disclosure - REVENUE FROM CONTRACTS WITH CUSTOMERS link:presentationLink link:calculationLink link:definitionLink 9952220 - Disclosure - SUBSEQUENT EVENTS link:presentationLink link:calculationLink link:definitionLink 9955511 - Disclosure - SIGNIFICANT ACCOUNTING MATTERS (Policies) link:presentationLink link:calculationLink link:definitionLink 9955512 - Disclosure - SIGNIFICANT ACCOUNTING MATTERS (Tables) link:presentationLink link:calculationLink link:definitionLink 9955513 - Disclosure - COMPREHENSIVE INCOME (Tables) link:presentationLink link:calculationLink link:definitionLink 9955514 - Disclosure - RATE MATTERS (Tables) link:presentationLink link:calculationLink link:definitionLink 9955515 - Disclosure - COMMITMENTS, GUARANTEES AND CONTINGENCIES (Tables) link:presentationLink link:calculationLink link:definitionLink 9955516 - Disclosure - ACQUISITIONS, DISPOSITIONS AND IMPAIRMENTS (Tables) link:presentationLink link:calculationLink link:definitionLink 9955517 - Disclosure - BENEFIT PLANS (Tables) link:presentationLink link:calculationLink link:definitionLink 9955518 - Disclosure - BUSINESS SEGMENTS (Tables) link:presentationLink link:calculationLink link:definitionLink 9955519 - Disclosure - DERIVATIVES AND HEDGING (Tables) link:presentationLink link:calculationLink link:definitionLink 9955520 - Disclosure - FAIR VALUE MEASUREMENTS (Tables) link:presentationLink link:calculationLink link:definitionLink 9955521 - Disclosure - INCOME TAXES (Tables) link:presentationLink link:calculationLink link:definitionLink 9955522 - Disclosure - FINANCING ACTIVITIES (Tables) link:presentationLink link:calculationLink link:definitionLink 9955523 - Disclosure - VARIABLE INTEREST ENTITIES AND EQUITY METHOD INVESTMENTS (Tables) link:presentationLink link:calculationLink link:definitionLink 9955524 - Disclosure - PROPERTY, PLANT AND EQUIPMENT (Tables) link:presentationLink link:calculationLink link:definitionLink 9955525 - Disclosure - REVENUE FROM CONTRACTS WITH CUSTOMERS (Tables) link:presentationLink link:calculationLink link:definitionLink 9955526 - Disclosure - SIGNIFICANT ACCOUNTING MATTERS - Earnings per Share (Details) link:presentationLink link:calculationLink link:definitionLink 9955527 - Disclosure - SIGNIFICANT ACCOUNTING MATTERS - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955528 - Disclosure - SIGNIFICANT ACCOUNTING MATTERS - Reconciliation of Cash (Details) link:presentationLink link:calculationLink link:definitionLink 9955529 - Disclosure - SIGNIFICANT ACCOUNTING MATTERS - Supplementary Cash Flow Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955530 - Disclosure - COMPREHENSIVE INCOME (Details) link:presentationLink link:calculationLink link:definitionLink 9955531 - Disclosure - RATE MATTERS - Regulated Generating Units (Details) link:presentationLink link:calculationLink link:definitionLink 9955532 - Disclosure - RATE MATTERS - Net Book Value (Details) link:presentationLink link:calculationLink link:definitionLink 9955533 - Disclosure - RATE MATTERS - Regulatory Assets Pending Final Approval (Details) link:presentationLink link:calculationLink link:definitionLink 9955534 - Disclosure - RATE MATTERS - AEP Texas Rate Matters (Details) link:presentationLink link:calculationLink link:definitionLink 9955534 - Disclosure - RATE MATTERS - AEP Texas Rate Matters (Details) link:presentationLink link:calculationLink link:definitionLink 9955535 - Disclosure - RATE MATTERS - APCo and WPCo Rate Matters (Details) link:presentationLink link:calculationLink link:definitionLink 9955536 - Disclosure - RATE MATTERS - Regulatory Assets Subject to Securitization (Details) link:presentationLink link:calculationLink link:definitionLink 9955537 - Disclosure - RATE MATTERS - ETT Rate Matters (Details) link:presentationLink link:calculationLink link:definitionLink 9955538 - Disclosure - RATE MATTERS - I&M Rate Matters (Details) link:presentationLink link:calculationLink link:definitionLink 9955539 - Disclosure - RATE MATTERS - KPCo Rate Matters (Details) link:presentationLink link:calculationLink link:definitionLink 9955540 - Disclosure - RATE MATTERS - 2025 Ohio Base Rate Case (Details) link:presentationLink link:calculationLink link:definitionLink 9955541 - Disclosure - RATE MATTERS - March 2026 Storm Costs (Details) link:presentationLink link:calculationLink link:definitionLink 9955542 - Disclosure - RATE MATTERS - PSO Rate Matters (Details) link:presentationLink link:calculationLink link:definitionLink 9955543 - Disclosure - RATE MATTERS - SWEPCo Rate Matters (Details) link:presentationLink link:calculationLink link:definitionLink 9955544 - Disclosure - RATE MATTERS - PSO and SWEPCo Rate Matters (Details) link:presentationLink link:calculationLink link:definitionLink 9955545 - Disclosure - RATE MATTERS - FERC Rate Matters (Details) link:presentationLink link:calculationLink link:definitionLink 9955546 - Disclosure - RATE MATTERS - FERC Annual Revenue Requirements (Details) link:presentationLink link:calculationLink link:definitionLink 9955547 - Disclosure - RATE MATTERS - Impact to the Statements of Income Recorded by the Registrants (Details) link:presentationLink link:calculationLink link:definitionLink 9955548 - Disclosure - COMMITMENTS, GUARANTEES AND CONTINGENCIES - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955549 - Disclosure - COMMITMENTS, GUARANTEES AND CONTINGENCIES - Maximum Future Payments for Letters of Credit (Details) link:presentationLink link:calculationLink link:definitionLink 9955550 - Disclosure - COMMITMENTS, GUARANTEES AND CONTINGENCIES - Potential Loss on Master Lease Agreements (Details) link:presentationLink link:calculationLink link:definitionLink 9955551 - Disclosure - ACQUISITIONS, DISPOSITIONS AND IMPAIRMENTS - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955552 - Disclosure - ACQUISITIONS, DISPOSITIONS AND IMPAIRMENTS - Impact of Asset Acquisitions (Details) link:presentationLink link:calculationLink link:definitionLink 9955553 - Disclosure - BENEFIT PLANS - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955554 - Disclosure - BENEFIT PLANS - Components of Net Periodic Benefit Cost (Credit) (Details) link:presentationLink link:calculationLink link:definitionLink 9955555 - 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Disclosure - DERIVATIVES AND HEDGING - Schedule of Location and Fair Value of Derivative Assets and Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9955562 - Disclosure - DERIVATIVES AND HEDGING - Schedule of Offsetting Assets and Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9955562 - Disclosure - DERIVATIVES AND HEDGING - Schedule of Offsetting Assets and Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9955563 - Disclosure - DERIVATIVES AND HEDGING - Schedule of Gain (Loss) Recognized on Risk Management Contracts (Details) link:presentationLink link:calculationLink link:definitionLink 9955563 - Disclosure - DERIVATIVES AND HEDGING - Schedule of Gain (Loss) Recognized on Risk Management Contracts (Details) link:presentationLink link:calculationLink link:definitionLink 9955563 - Disclosure - DERIVATIVES AND HEDGING - Schedule of Gain (Loss) Recognized on Risk Management Contracts (Details) link:presentationLink link:calculationLink link:definitionLink 9955563 - Disclosure - DERIVATIVES AND HEDGING - Schedule of Gain (Loss) Recognized on Risk Management Contracts (Details) link:presentationLink link:calculationLink link:definitionLink 9955564 - Disclosure - DERIVATIVES AND HEDGING - Schedule of Hedged Items Recognized on the Balance Sheet (Details) link:presentationLink link:calculationLink link:definitionLink 9955565 - Disclosure - DERIVATIVES AND HEDGING - Schedule of Pretax Effects of Fair Value Hedge Accounting on Income (Details) link:presentationLink link:calculationLink link:definitionLink 9955566 - Disclosure - DERIVATIVES AND HEDGING - Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss) (Details) link:presentationLink link:calculationLink link:definitionLink 9955567 - Disclosure - FAIR VALUE MEASUREMENTS - Debt Fair Value (Details) link:presentationLink link:calculationLink link:definitionLink 9955568 - Disclosure - FAIR VALUE MEASUREMENTS - Fair Value of Other Temporary Investments and Cash (Details) link:presentationLink link:calculationLink link:definitionLink 9955569 - 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Disclosure - FINANCING ACTIVITIES - Schedule of Long-Term Debt Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955581 - Disclosure - FINANCING ACTIVITIES - Schedule of Long-Term Debt Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955582 - Disclosure - FINANCING ACTIVITIES - Issuances of Debt (Details) link:presentationLink link:calculationLink link:definitionLink 9955583 - Disclosure - FINANCING ACTIVITIES - Repayments and Retirements of Debt (Details) link:presentationLink link:calculationLink link:definitionLink 9955584 - Disclosure - FINANCING ACTIVITIES - Long-term Debt Subsequent Events (Details) link:presentationLink link:calculationLink link:definitionLink 9955585 - Disclosure - FINANCING ACTIVITIES - Debt Covenants Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955586 - Disclosure - FINANCING ACTIVITIES - Dividend Restrictions Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955587 - Disclosure - FINANCING ACTIVITIES - Schedule of Utility Money Pool Participants' Money Pool Activity and Authorized Borrowing Limits (Details) link:presentationLink link:calculationLink link:definitionLink 9955588 - Disclosure - FINANCING ACTIVITIES - Schedule of Nonutility Money Pool Activity (Details) link:presentationLink link:calculationLink link:definitionLink 9955589 - Disclosure - FINANCING ACTIVITIES - Schedule of Direct Borrowing Activity (Details) link:presentationLink link:calculationLink link:definitionLink 9955590 - Disclosure - FINANCING ACTIVITIES - Schedule of Maximum and Minimum Interest Rates for Funds Either Borrowed from or Loaned to Utility Money Pool (Details) link:presentationLink link:calculationLink link:definitionLink 9955591 - Disclosure - FINANCING ACTIVITIES - Schedule of Average Interest Rates for Funds Borrowed from and Loaned to Utility Money Pool (Details) link:presentationLink link:calculationLink link:definitionLink 9955592 - Disclosure - FINANCING ACTIVITIES - Schedule of Maximum, Minimum and Average Interest Rates for Funds Borrowed from and Loaned to the Nonutility Money Pool (Details) link:presentationLink link:calculationLink link:definitionLink 9955593 - Disclosure - FINANCING ACTIVITIES - Schedule of Maximum Minimum and Average Interest Rates for Funds Borrowed from and Loaned to AEP (Details) link:presentationLink link:calculationLink link:definitionLink 9955594 - Disclosure - FINANCING ACTIVITIES - Schedule of Short-term Debt (Details) link:presentationLink link:calculationLink link:definitionLink 9955595 - Disclosure - FINANCING ACTIVITIES - Securitized Accounts Receivables Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955596 - Disclosure - FINANCING ACTIVITIES - Schedule of Comparative Accounts Receivable Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955597 - Disclosure - FINANCING ACTIVITIES - Schedule of Customer Accounts Receivable Managed Portfolio (Details) link:presentationLink link:calculationLink link:definitionLink 9955598 - 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