INCOME TAXES - Schedule of Effective Income Tax Rate Reconciliation (Details)
|
3 Months Ended |
6 Months Ended |
Jun. 30, 2025 |
Jun. 30, 2024 |
Jun. 30, 2025 |
Jun. 30, 2024 |
| Effective Income Tax Rate Reconciliation [Line Items] |
|
|
|
|
| U.S. Federal Statutory Rate |
21.00%
|
21.00%
|
21.00%
|
21.00%
|
| State and Local Income Taxes, Net |
0.60%
|
0.90%
|
0.90%
|
1.80%
|
| Tax Reform Excess ADIT Reversal |
(0.40%)
|
(6.00%)
|
(1.40%)
|
(6.00%)
|
| Remeasurement of Excess ADIT |
(37.00%)
|
(1.70%)
|
(19.50%)
|
(19.00%)
|
| Production and Investment Tax Credits |
(6.70%)
|
(11.00%)
|
(6.60%)
|
(7.00%)
|
| Reversal of Origination Flow-Through |
0.00%
|
1.10%
|
0.20%
|
|
| AFUDC Equity |
(1.00%)
|
|
(1.10%)
|
|
| Flow-Through of CAMT |
(0.30%)
|
|
|
|
| Other |
(0.40%)
|
(2.40%)
|
0.10%
|
(2.00%)
|
| Effective Income Tax Rate |
(24.20%)
|
1.90%
|
(6.40%)
|
(11.20%)
|
| AEP Texas |
|
|
|
|
| Effective Income Tax Rate Reconciliation [Line Items] |
|
|
|
|
| U.S. Federal Statutory Rate |
21.00%
|
21.00%
|
21.00%
|
21.00%
|
| State and Local Income Taxes, Net |
0.90%
|
0.50%
|
0.60%
|
0.40%
|
| Tax Reform Excess ADIT Reversal |
(2.10%)
|
(1.20%)
|
(2.80%)
|
(1.20%)
|
| Remeasurement of Excess ADIT |
0.00%
|
3.90%
|
0.00%
|
2.40%
|
| Production and Investment Tax Credits |
(0.10%)
|
(0.20%)
|
(0.10%)
|
(0.20%)
|
| Reversal of Origination Flow-Through |
0.10%
|
0.10%
|
0.10%
|
|
| AFUDC Equity |
(1.20%)
|
|
(1.10%)
|
|
| Flow-Through of CAMT |
0.00%
|
|
|
|
| Other |
0.10%
|
(1.30%)
|
(0.10%)
|
(1.10%)
|
| Effective Income Tax Rate |
18.70%
|
22.80%
|
17.60%
|
21.30%
|
| AEPTCo |
|
|
|
|
| Effective Income Tax Rate Reconciliation [Line Items] |
|
|
|
|
| U.S. Federal Statutory Rate |
21.00%
|
21.00%
|
21.00%
|
21.00%
|
| State and Local Income Taxes, Net |
2.50%
|
2.30%
|
2.50%
|
2.50%
|
| Tax Reform Excess ADIT Reversal |
0.60%
|
0.20%
|
0.40%
|
0.20%
|
| Remeasurement of Excess ADIT |
(54.30%)
|
0.00%
|
(34.40%)
|
0.00%
|
| Production and Investment Tax Credits |
0.00%
|
0.00%
|
0.00%
|
0.00%
|
| Reversal of Origination Flow-Through |
0.20%
|
0.30%
|
0.20%
|
|
| AFUDC Equity |
(0.80%)
|
|
(1.10%)
|
|
| Flow-Through of CAMT |
0.00%
|
|
|
|
| Other |
0.00%
|
(2.40%)
|
0.00%
|
(1.80%)
|
| Effective Income Tax Rate |
(30.80%)
|
21.40%
|
(11.40%)
|
21.90%
|
| APCo |
|
|
|
|
| Effective Income Tax Rate Reconciliation [Line Items] |
|
|
|
|
| U.S. Federal Statutory Rate |
21.00%
|
21.00%
|
21.00%
|
21.00%
|
| State and Local Income Taxes, Net |
0.80%
|
3.00%
|
1.00%
|
2.60%
|
| Tax Reform Excess ADIT Reversal |
(2.00%)
|
(2.90%)
|
(2.40%)
|
(10.00%)
|
| Remeasurement of Excess ADIT |
(26.00%)
|
0.00%
|
(8.10%)
|
0.00%
|
| Production and Investment Tax Credits |
(0.10%)
|
(0.10%)
|
(0.10%)
|
(0.10%)
|
| Reversal of Origination Flow-Through |
(4.10%)
|
(1.00%)
|
(1.80%)
|
|
| AFUDC Equity |
(0.90%)
|
|
(0.70%)
|
|
| Flow-Through of CAMT |
(3.40%)
|
|
|
|
| Other |
0.00%
|
(2.10%)
|
0.10%
|
(1.40%)
|
| Effective Income Tax Rate |
(14.70%)
|
17.90%
|
9.00%
|
12.10%
|
| I&M |
|
|
|
|
| Effective Income Tax Rate Reconciliation [Line Items] |
|
|
|
|
| U.S. Federal Statutory Rate |
21.00%
|
21.00%
|
21.00%
|
21.00%
|
| State and Local Income Taxes, Net |
1.10%
|
(3.70%)
|
2.00%
|
2.30%
|
| Tax Reform Excess ADIT Reversal |
2.80%
|
(15.20%)
|
0.20%
|
(3.40%)
|
| Remeasurement of Excess ADIT |
(40.80%)
|
(46.20%)
|
(24.10%)
|
(55.80%)
|
| Production and Investment Tax Credits |
(18.70%)
|
1.80%
|
(15.80%)
|
(0.50%)
|
| Reversal of Origination Flow-Through |
1.80%
|
12.00%
|
1.80%
|
|
| AFUDC Equity |
(0.80%)
|
|
(0.70%)
|
|
| Flow-Through of CAMT |
0.00%
|
|
|
|
| Other |
0.00%
|
(2.00%)
|
0.00%
|
(0.70%)
|
| Effective Income Tax Rate |
(33.60%)
|
(32.30%)
|
(15.60%)
|
(37.10%)
|
| OPCo |
|
|
|
|
| Effective Income Tax Rate Reconciliation [Line Items] |
|
|
|
|
| U.S. Federal Statutory Rate |
21.00%
|
21.00%
|
21.00%
|
21.00%
|
| State and Local Income Taxes, Net |
1.00%
|
(1.20%)
|
1.30%
|
0.60%
|
| Tax Reform Excess ADIT Reversal |
(2.70%)
|
(34.90%)
|
(3.20%)
|
(10.60%)
|
| Remeasurement of Excess ADIT |
0.00%
|
0.00%
|
0.00%
|
0.00%
|
| Production and Investment Tax Credits |
0.00%
|
0.00%
|
0.00%
|
0.00%
|
| Reversal of Origination Flow-Through |
0.60%
|
2.70%
|
0.70%
|
|
| AFUDC Equity |
(1.50%)
|
|
(1.60%)
|
|
| Flow-Through of CAMT |
0.00%
|
|
|
|
| Other |
(0.10%)
|
(4.10%)
|
0.00%
|
(0.40%)
|
| Effective Income Tax Rate |
18.30%
|
(16.50%)
|
18.20%
|
10.60%
|
| PSO |
|
|
|
|
| Effective Income Tax Rate Reconciliation [Line Items] |
|
|
|
|
| U.S. Federal Statutory Rate |
21.00%
|
21.00%
|
21.00%
|
21.00%
|
| State and Local Income Taxes, Net |
3.20%
|
(2.90%)
|
3.00%
|
0.00%
|
| Tax Reform Excess ADIT Reversal |
(2.70%)
|
(3.40%)
|
(3.10%)
|
(2.80%)
|
| Remeasurement of Excess ADIT |
(41.40%)
|
0.00%
|
(23.50%)
|
(116.80%)
|
| Production and Investment Tax Credits |
(69.30%)
|
(70.60%)
|
(51.30%)
|
(61.30%)
|
| Reversal of Origination Flow-Through |
0.30%
|
0.30%
|
0.20%
|
|
| AFUDC Equity |
(1.40%)
|
|
(1.00%)
|
|
| Flow-Through of CAMT |
0.00%
|
|
|
|
| Other |
0.20%
|
(1.50%)
|
0.10%
|
(0.40%)
|
| Effective Income Tax Rate |
(90.10%)
|
(57.10%)
|
(54.60%)
|
(160.30%)
|
| SWEPCo |
|
|
|
|
| Effective Income Tax Rate Reconciliation [Line Items] |
|
|
|
|
| U.S. Federal Statutory Rate |
21.00%
|
21.00%
|
21.00%
|
21.00%
|
| State and Local Income Taxes, Net |
(2.80%)
|
(0.10%)
|
(2.20%)
|
(2.40%)
|
| Tax Reform Excess ADIT Reversal |
2.50%
|
2.00%
|
0.10%
|
(1.50%)
|
| Remeasurement of Excess ADIT |
(79.40%)
|
0.00%
|
(45.70%)
|
303.00%
|
| Production and Investment Tax Credits |
(40.70%)
|
15.90%
|
(36.60%)
|
69.30%
|
| Reversal of Origination Flow-Through |
0.90%
|
(0.40%)
|
0.80%
|
|
| AFUDC Equity |
(1.50%)
|
|
(1.40%)
|
|
| Flow-Through of CAMT |
0.00%
|
|
|
|
| Other |
(0.90%)
|
0.50%
|
(0.20%)
|
(1.20%)
|
| Effective Income Tax Rate |
(100.90%)
|
38.90%
|
(64.20%)
|
388.20%
|