{"cik":1721781,"taxonomy":"us-gaap","tag":"EarningsPerShareBasic","label":"Earnings Per Share, Basic","description":"The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.","entityName":"AEP TEXAS INC.","units":{"USD/shares":[{"start":"2025-01-01","end":"2025-06-30","val":3.8,"accn":"0001721781-26-000023","fy":2026,"fp":"Q2","form":"10-Q","filed":"2026-07-30"},{"start":"2025-04-01","end":"2025-06-30","val":2.29,"accn":"0001721781-26-000023","fy":2026,"fp":"Q2","form":"10-Q","filed":"2026-07-30","frame":"CY2025Q2"},{"start":"2026-01-01","end":"2026-06-30","val":2.92,"accn":"0001721781-26-000023","fy":2026,"fp":"Q2","form":"10-Q","filed":"2026-07-30"},{"start":"2026-04-01","end":"2026-06-30","val":1.31,"accn":"0001721781-26-000023","fy":2026,"fp":"Q2","form":"10-Q","filed":"2026-07-30","frame":"CY2026Q2"}]}}