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FAIR VALUE MEASUREMENTS - Fair Value of Assets and Liabilities on a Recurring Basis (Details) - USD ($) $ in Millions | Sep. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Other Temporary Investments and Restricted Cash |  |
Total Other Temporary Investments and Restricted Cash | $ 264.5 | $ 258.5
Risk Management Assets |  |
Risk Management Assets | 672.5 | 499.5
Spent Nuclear Fuel and Decommissioning Trusts |  |
Spent Nuclear Fuel and Decommissioning Trusts | 4,858.9 | 4,395.1
Total Assets | 5,795.9 | 5,153.1
Risk Management Liabilities |  |
Total Risk Management Liabilities | 309.6 | 324.4
AEP Texas |  |
Other Temporary Investments and Restricted Cash |  |
Restricted Cash | 7.3 | 23.5
Risk Management Assets |  |
Risk Management Assets | 0.1 | 0.0
Spent Nuclear Fuel and Decommissioning Trusts |  |
Total Assets | 7.4 |
Risk Management Liabilities |  |
Total Risk Management Liabilities | 0.0 | 0.0
APCo |  |
Other Temporary Investments and Restricted Cash |  |
Restricted Cash | 10.8 | 16.2
Risk Management Assets |  |
Risk Management Assets | 94.1 | 37.1
Spent Nuclear Fuel and Decommissioning Trusts |  |
Total Assets | 104.9 | 53.3
Risk Management Liabilities |  |
Total Risk Management Liabilities | 2.7 | 2.2
I&M |  |
Risk Management Assets |  |
Risk Management Assets | 10.9 | 18.4
Spent Nuclear Fuel and Decommissioning Trusts |  |
Spent Nuclear Fuel and Decommissioning Trusts | 4,858.9 | 4,395.1
Total Assets | 4,869.8 | 4,413.5
Risk Management Liabilities |  |
Total Risk Management Liabilities | 1.0 | 0.7
OPCo |  |
Risk Management Assets |  |
Risk Management Assets | 0.0 | 0.0
Risk Management Liabilities |  |
Total Risk Management Liabilities | 44.3 | 47.5
PSO |  |
Risk Management Assets |  |
Risk Management Assets | 68.1 | 22.0
Risk Management Liabilities |  |
Total Risk Management Liabilities | 17.3 | 5.8
SWEPCo |  |
Other Temporary Investments and Restricted Cash |  |
Restricted Cash | 7.8 | 3.4
Risk Management Assets |  |
Risk Management Assets | 57.8 | 18.1
Spent Nuclear Fuel and Decommissioning Trusts |  |
Total Assets | 65.6 | 21.5
Risk Management Liabilities |  |
Total Risk Management Liabilities | 5.4 | 2.3
Risk Management Commodity Contracts |  |
Risk Management Assets |  |
Risk Management Assets | 568.3 | 374.6
Risk Management Liabilities |  |
Total Risk Management Liabilities | 253.8 | 252.6
Risk Management Commodity Contracts | AEP Texas |  |
Risk Management Assets |  |
Risk Management Assets | 0.1 |
Risk Management Liabilities |  |
Total Risk Management Liabilities |  | 0.0
Risk Management Commodity Contracts | APCo |  |
Risk Management Assets |  |
Risk Management Assets | 94.1 | 37.1
Risk Management Liabilities |  |
Total Risk Management Liabilities | 2.7 | 2.2
Risk Management Commodity Contracts | I&M |  |
Risk Management Assets |  |
Risk Management Assets | 10.9 | 18.4
Risk Management Liabilities |  |
Total Risk Management Liabilities | 1.0 | 0.7
Risk Management Commodity Contracts | OPCo |  |
Risk Management Liabilities |  |
Total Risk Management Liabilities | 44.3 | 47.5
Risk Management Commodity Contracts | PSO |  |
Risk Management Assets |  |
Risk Management Assets | 68.1 | 22.0
Risk Management Liabilities |  |
Total Risk Management Liabilities | 17.3 | 5.8
Risk Management Commodity Contracts | SWEPCo |  |
Risk Management Assets |  |
Risk Management Assets | 57.8 | 18.1
Risk Management Liabilities |  |
Total Risk Management Liabilities | 5.4 | 2.3
Commodity Hedges |  |
Risk Management Assets |  |
Risk Management Assets | 104.2 | 124.9
Risk Management Liabilities |  |
Total Risk Management Liabilities | 6.9 | 0.2
Fair Value Hedges |  |
Risk Management Liabilities |  |
Total Risk Management Liabilities | 48.9 | 71.6
Other |  |
Other Temporary Investments and Restricted Cash |  |
Total Other Temporary Investments and Restricted Cash | 25.4 | 13.9
Risk Management Assets |  |
Total Risk Management Assets | (531.8) | (529.8)
Spent Nuclear Fuel and Decommissioning Trusts |  |
Spent Nuclear Fuel and Decommissioning Trusts | 14.3 | 13.7
Total Assets | (492.1) | (502.2)
Risk Management Liabilities |  |
Total Risk Management Liabilities | (467.3) | (446.2)
Other | AEP Texas |  |
Other Temporary Investments and Restricted Cash |  |
Restricted Cash | 0.0 | 0.0
Spent Nuclear Fuel and Decommissioning Trusts |  |
Total Assets | 0.0 |
Other | APCo |  |
Other Temporary Investments and Restricted Cash |  |
Restricted Cash | 0.0 | 0.0
Spent Nuclear Fuel and Decommissioning Trusts |  |
Total Assets | (2.6) | (4.6)
Other | I&M |  |
Spent Nuclear Fuel and Decommissioning Trusts |  |
Spent Nuclear Fuel and Decommissioning Trusts | 14.3 | 13.7
Total Assets |  | 5.3
Total Assets | 5.4 |
Other | SWEPCo |  |
Other Temporary Investments and Restricted Cash |  |
Restricted Cash | 0.0 | 0.0
Spent Nuclear Fuel and Decommissioning Trusts |  |
Total Assets | (1.9) | (1.0)
Other | Risk Management Commodity Contracts |  |
Risk Management Assets |  |
Total Risk Management Assets | (517.0) | (517.2)
Risk Management Liabilities |  |
Total Risk Management Liabilities | (452.5) | (433.6)
Other | Risk Management Commodity Contracts | AEP Texas |  |
Risk Management Assets |  |
Risk Management Assets | 0.0 |
Risk Management Liabilities |  |
Total Risk Management Liabilities |  | (0.3)
Other | Risk Management Commodity Contracts | APCo |  |
Risk Management Assets |  |
Total Risk Management Assets | (2.6) | (4.6)
Risk Management Liabilities |  |
Total Risk Management Liabilities | (2.6) | (4.7)
Other | Risk Management Commodity Contracts | I&M |  |
Risk Management Assets |  |
Total Risk Management Assets | (8.9) | (8.4)
Risk Management Liabilities |  |
Total Risk Management Liabilities | (11.2) | (9.0)
Other | Risk Management Commodity Contracts | OPCo |  |
Risk Management Liabilities |  |
Total Risk Management Liabilities | 0.0 | (0.2)
Other | Risk Management Commodity Contracts | PSO |  |
Risk Management Assets |  |
Total Risk Management Assets | (0.5) | (1.9)
Risk Management Liabilities |  |
Total Risk Management Liabilities | (0.5) | (2.0)
Other | Risk Management Commodity Contracts | SWEPCo |  |
Risk Management Assets |  |
Total Risk Management Assets | (1.9) | (1.0)
Risk Management Liabilities |  |
Total Risk Management Liabilities | (1.9) | (1.1)
Other | Commodity Hedges |  |
Risk Management Assets |  |
Total Risk Management Assets | (14.8) | (12.6)
Risk Management Liabilities |  |
Total Risk Management Liabilities | (14.8) | (12.6)
Other | Fair Value Hedges |  |
Risk Management Liabilities |  |
Total Risk Management Liabilities | 0.0 | 0.0
Restricted Cash |  |
Other Temporary Investments and Restricted Cash |  |
Restricted Cash | 39.1 | 43.1
Restricted Cash | Other |  |
Other Temporary Investments and Restricted Cash |  |
Restricted Cash | 13.2 | 0.0
Other Cash Deposits |  |
Other Temporary Investments and Restricted Cash |  |
Total Other Temporary Investments and Restricted Cash | 12.2 | 13.9
Other Cash Deposits | Other |  |
Other Temporary Investments and Restricted Cash |  |
Total Other Temporary Investments and Restricted Cash | 12.2 | 13.9
Fixed Income Securities – Mutual Funds |  |
Other Temporary Investments and Restricted Cash |  |
Total Other Temporary Investments and Restricted Cash | 171.1 | 161.9
Fixed Income Securities – Mutual Funds | Other |  |
Other Temporary Investments and Restricted Cash |  |
Total Other Temporary Investments and Restricted Cash | 0.0 | 0.0
Equity Securities – Mutual Funds |  |
Other Temporary Investments and Restricted Cash |  |
Total Other Temporary Investments and Restricted Cash | 42.1 | 39.6
Equity Securities – Mutual Funds | Other |  |
Other Temporary Investments and Restricted Cash |  |
Total Other Temporary Investments and Restricted Cash | 0.0 | 0.0
Cash and Cash Equivalents |  |
Spent Nuclear Fuel and Decommissioning Trusts |  |
Spent Nuclear Fuel and Decommissioning Trusts | 25.0 | 23.3
Cash and Cash Equivalents | I&M |  |
Spent Nuclear Fuel and Decommissioning Trusts |  |
Spent Nuclear Fuel and Decommissioning Trusts | 25.0 | 23.3
Cash and Cash Equivalents | Other |  |
Spent Nuclear Fuel and Decommissioning Trusts |  |
Spent Nuclear Fuel and Decommissioning Trusts | 14.3 | 13.7
Cash and Cash Equivalents | Other | I&M |  |
Spent Nuclear Fuel and Decommissioning Trusts |  |
Spent Nuclear Fuel and Decommissioning Trusts | 14.3 | 13.7
United States Government |  |
Spent Nuclear Fuel and Decommissioning Trusts |  |
Spent Nuclear Fuel and Decommissioning Trusts | 1,385.1 | 1,322.8
United States Government | I&M |  |
Spent Nuclear Fuel and Decommissioning Trusts |  |
Spent Nuclear Fuel and Decommissioning Trusts | 1,385.1 | 1,322.8
United States Government | Other |  |
Spent Nuclear Fuel and Decommissioning Trusts |  |
Spent Nuclear Fuel and Decommissioning Trusts | 0.0 | 0.0
United States Government | Other | I&M |  |
Spent Nuclear Fuel and Decommissioning Trusts |  |
Spent Nuclear Fuel and Decommissioning Trusts | 0.0 | 0.0
Corporate Debt |  |
Spent Nuclear Fuel and Decommissioning Trusts |  |
Spent Nuclear Fuel and Decommissioning Trusts | 352.9 | 211.3
Corporate Debt | I&M |  |
Spent Nuclear Fuel and Decommissioning Trusts |  |
Spent Nuclear Fuel and Decommissioning Trusts | 352.9 | 211.3
Corporate Debt | Other |  |
Spent Nuclear Fuel and Decommissioning Trusts |  |
Spent Nuclear Fuel and Decommissioning Trusts | 0.0 | 0.0
Corporate Debt | Other | I&M |  |
Spent Nuclear Fuel and Decommissioning Trusts |  |
Spent Nuclear Fuel and Decommissioning Trusts | 0.0 | 0.0
Subtotal Fixed Income Securities |  |
Spent Nuclear Fuel and Decommissioning Trusts |  |
Spent Nuclear Fuel and Decommissioning Trusts | 1,738.0 | 1,534.1
Subtotal Fixed Income Securities | I&M |  |
Spent Nuclear Fuel and Decommissioning Trusts |  |
Spent Nuclear Fuel and Decommissioning Trusts | 1,738.0 | 1,534.1
Subtotal Fixed Income Securities | Other |  |
Spent Nuclear Fuel and Decommissioning Trusts |  |
Spent Nuclear Fuel and Decommissioning Trusts | 0.0 | 0.0
Subtotal Fixed Income Securities | Other | I&M |  |
Spent Nuclear Fuel and Decommissioning Trusts |  |
Spent Nuclear Fuel and Decommissioning Trusts | 0.0 | 0.0
Equity Securities - Domestic |  |
Spent Nuclear Fuel and Decommissioning Trusts |  |
Spent Nuclear Fuel and Decommissioning Trusts | 3,095.9 |
Equity Securities - Domestic | Other |  |
Spent Nuclear Fuel and Decommissioning Trusts |  |
Spent Nuclear Fuel and Decommissioning Trusts | 0.0 |
Domestic |  |
Spent Nuclear Fuel and Decommissioning Trusts |  |
Spent Nuclear Fuel and Decommissioning Trusts |  | 2,837.7
Domestic | I&M |  |
Spent Nuclear Fuel and Decommissioning Trusts |  |
Spent Nuclear Fuel and Decommissioning Trusts | 3,095.9 | 2,837.7
Domestic | Other |  |
Spent Nuclear Fuel and Decommissioning Trusts |  |
Spent Nuclear Fuel and Decommissioning Trusts |  | 0.0
Domestic | Other | I&M |  |
Spent Nuclear Fuel and Decommissioning Trusts |  |
Spent Nuclear Fuel and Decommissioning Trusts | 0.0 | 0.0
Level 1 |  |
Other Temporary Investments and Restricted Cash |  |
Total Other Temporary Investments and Restricted Cash | 239.1 | 244.6
Risk Management Assets |  |
Risk Management Assets | 3.6 | 2.9
Spent Nuclear Fuel and Decommissioning Trusts |  |
Spent Nuclear Fuel and Decommissioning Trusts | 3,106.6 | 2,847.3
Total Assets | 3,349.3 | 3,094.8
Risk Management Liabilities |  |
Total Risk Management Liabilities | 5.3 | 4.4
Level 1 | Within Current Year |  |
Risk Management Liabilities |  |
Maturities of net fair value of risk management contracts | (1.0) | (1.0)
Level 1 | Maturity Period 2 |  |
Risk Management Liabilities |  |
Maturities of net fair value of risk management contracts | (1.0) |
Level 1 | AEP Texas |  |
Other Temporary Investments and Restricted Cash |  |
Restricted Cash | 7.3 | 23.5
Spent Nuclear Fuel and Decommissioning Trusts |  |
Total Assets | 7.3 |
Level 1 | APCo |  |
Other Temporary Investments and Restricted Cash |  |
Restricted Cash | 10.8 | 16.2
Spent Nuclear Fuel and Decommissioning Trusts |  |
Total Assets | 10.8 | 16.2
Level 1 | I&M |  |
Spent Nuclear Fuel and Decommissioning Trusts |  |
Spent Nuclear Fuel and Decommissioning Trusts | 3,106.6 | 2,847.3
Total Assets | 3,106.6 | 2,847.3
Level 1 | SWEPCo |  |
Other Temporary Investments and Restricted Cash |  |
Restricted Cash | 7.8 | 3.4
Spent Nuclear Fuel and Decommissioning Trusts |  |
Total Assets | 7.8 | 3.4
Level 1 | Risk Management Commodity Contracts |  |
Risk Management Assets |  |
Risk Management Assets | 3.6 | 2.9
Risk Management Liabilities |  |
Total Risk Management Liabilities | 5.3 | 4.4
Level 1 | Risk Management Commodity Contracts | AEP Texas |  |
Risk Management Assets |  |
Risk Management Assets | 0.0 |
Risk Management Liabilities |  |
Total Risk Management Liabilities |  | 0.0
Level 1 | Risk Management Commodity Contracts | APCo |  |
Risk Management Assets |  |
Risk Management Assets | 0.0 | 0.0
Risk Management Liabilities |  |
Total Risk Management Liabilities | 0.0 | 0.0
Level 1 | Risk Management Commodity Contracts | I&M |  |
Risk Management Assets |  |
Risk Management Assets | 0.0 | 0.0
Risk Management Liabilities |  |
Total Risk Management Liabilities | 0.0 | 0.0
Level 1 | Risk Management Commodity Contracts | OPCo |  |
Risk Management Liabilities |  |
Total Risk Management Liabilities | 0.0 | 0.0
Level 1 | Risk Management Commodity Contracts | PSO |  |
Risk Management Assets |  |
Risk Management Assets | 0.0 | 0.0
Risk Management Liabilities |  |
Total Risk Management Liabilities | 0.0 | 0.0
Level 1 | Risk Management Commodity Contracts | SWEPCo |  |
Risk Management Assets |  |
Risk Management Assets | 0.0 | 0.0
Risk Management Liabilities |  |
Total Risk Management Liabilities | 0.0 | 0.0
Level 1 | Commodity Hedges |  |
Risk Management Assets |  |
Risk Management Assets | 0.0 | 0.0
Risk Management Liabilities |  |
Total Risk Management Liabilities | 0.0 | 0.0
Level 1 | Fair Value Hedges |  |
Risk Management Liabilities |  |
Total Risk Management Liabilities | 0.0 | 0.0
Level 1 | Restricted Cash |  |
Other Temporary Investments and Restricted Cash |  |
Restricted Cash | 25.9 | 43.1
Level 1 | Other Cash Deposits |  |
Other Temporary Investments and Restricted Cash |  |
Total Other Temporary Investments and Restricted Cash | 0.0 | 0.0
Level 1 | Fixed Income Securities – Mutual Funds |  |
Other Temporary Investments and Restricted Cash |  |
Total Other Temporary Investments and Restricted Cash | 171.1 | 161.9
Level 1 | Equity Securities – Mutual Funds |  |
Other Temporary Investments and Restricted Cash |  |
Total Other Temporary Investments and Restricted Cash | 42.1 | 39.6
Level 1 | Cash and Cash Equivalents |  |
Spent Nuclear Fuel and Decommissioning Trusts |  |
Spent Nuclear Fuel and Decommissioning Trusts | 10.7 | 9.6
Level 1 | Cash and Cash Equivalents | I&M |  |
Spent Nuclear Fuel and Decommissioning Trusts |  |
Spent Nuclear Fuel and Decommissioning Trusts | 10.7 | 9.6
Level 1 | United States Government |  |
Spent Nuclear Fuel and Decommissioning Trusts |  |
Spent Nuclear Fuel and Decommissioning Trusts | 0.0 | 0.0
Level 1 | United States Government | I&M |  |
Spent Nuclear Fuel and Decommissioning Trusts |  |
Spent Nuclear Fuel and Decommissioning Trusts | 0.0 | 0.0
Level 1 | Corporate Debt |  |
Spent Nuclear Fuel and Decommissioning Trusts |  |
Spent Nuclear Fuel and Decommissioning Trusts | 0.0 | 0.0
Level 1 | Corporate Debt | I&M |  |
Spent Nuclear Fuel and Decommissioning Trusts |  |
Spent Nuclear Fuel and Decommissioning Trusts | 0.0 | 0.0
Level 1 | Subtotal Fixed Income Securities |  |
Spent Nuclear Fuel and Decommissioning Trusts |  |
Spent Nuclear Fuel and Decommissioning Trusts | 0.0 | 0.0
Level 1 | Subtotal Fixed Income Securities | I&M |  |
Spent Nuclear Fuel and Decommissioning Trusts |  |
Spent Nuclear Fuel and Decommissioning Trusts | 0.0 | 0.0
Level 1 | Equity Securities - Domestic |  |
Spent Nuclear Fuel and Decommissioning Trusts |  |
Spent Nuclear Fuel and Decommissioning Trusts | 3,095.9 |
Level 1 | Domestic |  |
Spent Nuclear Fuel and Decommissioning Trusts |  |
Spent Nuclear Fuel and Decommissioning Trusts |  | 2,837.7
Level 1 | Domestic | I&M |  |
Spent Nuclear Fuel and Decommissioning Trusts |  |
Spent Nuclear Fuel and Decommissioning Trusts | 3,095.9 | 2,837.7
Level 2 |  |
Other Temporary Investments and Restricted Cash |  |
Total Other Temporary Investments and Restricted Cash | 0.0 | 0.0
Risk Management Assets |  |
Risk Management Assets | 724.0 | 712.9
Spent Nuclear Fuel and Decommissioning Trusts |  |
Spent Nuclear Fuel and Decommissioning Trusts | 1,738.0 | 1,534.1
Total Assets | 2,462.0 | 2,247.0
Risk Management Liabilities |  |
Total Risk Management Liabilities | 622.0 | 618.3
Level 2 | Within Current Year |  |
Risk Management Liabilities |  |
Maturities of net fair value of risk management contracts | 2.0 | 16.0
Level 2 | Maturity Period 2 |  |
Risk Management Liabilities |  |
Maturities of net fair value of risk management contracts | 63.0 | 43.0
Level 2 | Maturity Period 3 |  |
Risk Management Liabilities |  |
Maturities of net fair value of risk management contracts | 6.0 | 4.0
Level 2 | AEP Texas |  |
Other Temporary Investments and Restricted Cash |  |
Restricted Cash | 0.0 | 0.0
Spent Nuclear Fuel and Decommissioning Trusts |  |
Total Assets | 0.1 |
Level 2 | APCo |  |
Other Temporary Investments and Restricted Cash |  |
Restricted Cash | 0.0 | 0.0
Spent Nuclear Fuel and Decommissioning Trusts |  |
Total Assets | 5.3 | 6.5
Level 2 | I&M |  |
Spent Nuclear Fuel and Decommissioning Trusts |  |
Spent Nuclear Fuel and Decommissioning Trusts | 1,738.0 | 1,534.1
Total Assets | 1,746.5 | 1,554.0
Level 2 | SWEPCo |  |
Other Temporary Investments and Restricted Cash |  |
Restricted Cash | 0.0 | 0.0
Spent Nuclear Fuel and Decommissioning Trusts |  |
Total Assets | 0.3 | 1.0
Level 2 | Risk Management Commodity Contracts |  |
Risk Management Assets |  |
Risk Management Assets | 623.0 | 597.3
Risk Management Liabilities |  |
Total Risk Management Liabilities | 552.4 | 534.1
Level 2 | Risk Management Commodity Contracts | AEP Texas |  |
Risk Management Assets |  |
Risk Management Assets | 0.1 |
Risk Management Liabilities |  |
Total Risk Management Liabilities |  | 0.3
Level 2 | Risk Management Commodity Contracts | APCo |  |
Risk Management Assets |  |
Risk Management Assets | 5.3 | 6.5
Risk Management Liabilities |  |
Total Risk Management Liabilities | 5.2 | 6.9
Level 2 | Risk Management Commodity Contracts | I&M |  |
Risk Management Assets |  |
Risk Management Assets | 8.5 | 19.9
Risk Management Liabilities |  |
Total Risk Management Liabilities | 11.8 | 9.2
Level 2 | Risk Management Commodity Contracts | OPCo |  |
Risk Management Liabilities |  |
Total Risk Management Liabilities | 0.0 | 0.2
Level 2 | Risk Management Commodity Contracts | PSO |  |
Risk Management Assets |  |
Risk Management Assets | 0.3 | 3.1
Risk Management Liabilities |  |
Total Risk Management Liabilities | 14.8 | 7.0
Level 2 | Risk Management Commodity Contracts | SWEPCo |  |
Risk Management Assets |  |
Risk Management Assets | 0.3 | 1.0
Risk Management Liabilities |  |
Total Risk Management Liabilities | 4.5 | 2.8
Level 2 | Commodity Hedges |  |
Risk Management Assets |  |
Risk Management Assets | 101.0 | 115.6
Risk Management Liabilities |  |
Total Risk Management Liabilities | 20.7 | 12.6
Level 2 | Fair Value Hedges |  |
Risk Management Liabilities |  |
Total Risk Management Liabilities | 48.9 | 71.6
Level 2 | Restricted Cash |  |
Other Temporary Investments and Restricted Cash |  |
Restricted Cash | 0.0 | 0.0
Level 2 | Other Cash Deposits |  |
Other Temporary Investments and Restricted Cash |  |
Total Other Temporary Investments and Restricted Cash | 0.0 | 0.0
Level 2 | Fixed Income Securities – Mutual Funds |  |
Other Temporary Investments and Restricted Cash |  |
Total Other Temporary Investments and Restricted Cash | 0.0 | 0.0
Level 2 | Equity Securities – Mutual Funds |  |
Other Temporary Investments and Restricted Cash |  |
Total Other Temporary Investments and Restricted Cash | 0.0 | 0.0
Level 2 | Cash and Cash Equivalents |  |
Spent Nuclear Fuel and Decommissioning Trusts |  |
Spent Nuclear Fuel and Decommissioning Trusts | 0.0 | 0.0
Level 2 | Cash and Cash Equivalents | I&M |  |
Spent Nuclear Fuel and Decommissioning Trusts |  |
Spent Nuclear Fuel and Decommissioning Trusts | 0.0 | 0.0
Level 2 | United States Government |  |
Spent Nuclear Fuel and Decommissioning Trusts |  |
Spent Nuclear Fuel and Decommissioning Trusts | 1,385.1 | 1,322.8
Level 2 | United States Government | I&M |  |
Spent Nuclear Fuel and Decommissioning Trusts |  |
Spent Nuclear Fuel and Decommissioning Trusts | 1,385.1 | 1,322.8
Level 2 | Corporate Debt |  |
Spent Nuclear Fuel and Decommissioning Trusts |  |
Spent Nuclear Fuel and Decommissioning Trusts | 352.9 | 211.3
Level 2 | Corporate Debt | I&M |  |
Spent Nuclear Fuel and Decommissioning Trusts |  |
Spent Nuclear Fuel and Decommissioning Trusts | 352.9 | 211.3
Level 2 | Subtotal Fixed Income Securities |  |
Spent Nuclear Fuel and Decommissioning Trusts |  |
Spent Nuclear Fuel and Decommissioning Trusts | 1,738.0 | 1,534.1
Level 2 | Subtotal Fixed Income Securities | I&M |  |
Spent Nuclear Fuel and Decommissioning Trusts |  |
Spent Nuclear Fuel and Decommissioning Trusts | 1,738.0 | 1,534.1
Level 2 | Equity Securities - Domestic |  |
Spent Nuclear Fuel and Decommissioning Trusts |  |
Spent Nuclear Fuel and Decommissioning Trusts | 0.0 |
Level 2 | Domestic |  |
Spent Nuclear Fuel and Decommissioning Trusts |  |
Spent Nuclear Fuel and Decommissioning Trusts |  | 0.0
Level 2 | Domestic | I&M |  |
Spent Nuclear Fuel and Decommissioning Trusts |  |
Spent Nuclear Fuel and Decommissioning Trusts | 0.0 | 0.0
Level 3 |  |
Other Temporary Investments and Restricted Cash |  |
Total Other Temporary Investments and Restricted Cash | 0.0 | 0.0
Risk Management Assets |  |
Risk Management Assets | 476.7 | 313.5
Spent Nuclear Fuel and Decommissioning Trusts |  |
Spent Nuclear Fuel and Decommissioning Trusts | 0.0 | 0.0
Total Assets | 476.7 | 313.5
Risk Management Liabilities |  |
Total Risk Management Liabilities | 149.6 | 147.9
Level 3 | Within Current Year |  |
Risk Management Liabilities |  |
Maturities of net fair value of risk management contracts | 95.0 | 106.0
Level 3 | Maturity Period 2 |  |
Risk Management Liabilities |  |
Maturities of net fair value of risk management contracts | 222.0 | 45.0
Level 3 | Maturity Period 3 |  |
Risk Management Liabilities |  |
Maturities of net fair value of risk management contracts | 15.0 | 9.0
Level 3 | Maturity Period Four |  |
Risk Management Liabilities |  |
Maturities of net fair value of risk management contracts | (22.0) | (16.0)
Level 3 | AEP Texas |  |
Other Temporary Investments and Restricted Cash |  |
Restricted Cash | 0.0 | 0.0
Spent Nuclear Fuel and Decommissioning Trusts |  |
Total Assets | 0.0 |
Level 3 | APCo |  |
Other Temporary Investments and Restricted Cash |  |
Restricted Cash | 0.0 | 0.0
Spent Nuclear Fuel and Decommissioning Trusts |  |
Total Assets | 91.4 | 35.2
Level 3 | I&M |  |
Spent Nuclear Fuel and Decommissioning Trusts |  |
Spent Nuclear Fuel and Decommissioning Trusts | 0.0 | 0.0
Total Assets | 11.3 | 6.9
Level 3 | SWEPCo |  |
Other Temporary Investments and Restricted Cash |  |
Restricted Cash | 0.0 | 0.0
Spent Nuclear Fuel and Decommissioning Trusts |  |
Total Assets | 59.4 | 18.1
Level 3 | Risk Management Commodity Contracts |  |
Risk Management Assets |  |
Risk Management Assets | 458.7 | 291.6
Risk Management Liabilities |  |
Total Risk Management Liabilities | 148.6 | 147.7
Level 3 | Risk Management Commodity Contracts | AEP Texas |  |
Risk Management Assets |  |
Risk Management Assets | 0.0 |
Risk Management Liabilities |  |
Total Risk Management Liabilities |  | 0.0
Level 3 | Risk Management Commodity Contracts | APCo |  |
Risk Management Assets |  |
Risk Management Assets | 91.4 | 35.2
Risk Management Liabilities |  |
Total Risk Management Liabilities | 0.1 | 0.0
Level 3 | Risk Management Commodity Contracts | I&M |  |
Risk Management Assets |  |
Risk Management Assets | 11.3 | 6.9
Risk Management Liabilities |  |
Total Risk Management Liabilities | 0.4 | 0.5
Level 3 | Risk Management Commodity Contracts | OPCo |  |
Risk Management Liabilities |  |
Total Risk Management Liabilities | 44.3 | 47.5
Level 3 | Risk Management Commodity Contracts | PSO |  |
Risk Management Assets |  |
Risk Management Assets | 68.3 | 20.8
Risk Management Liabilities |  |
Total Risk Management Liabilities | 3.0 | 0.8
Level 3 | Risk Management Commodity Contracts | SWEPCo |  |
Risk Management Assets |  |
Risk Management Assets | 59.4 | 18.1
Risk Management Liabilities |  |
Total Risk Management Liabilities | 2.8 | 0.6
Level 3 | Commodity Hedges |  |
Risk Management Assets |  |
Risk Management Assets | 18.0 | 21.9
Risk Management Liabilities |  |
Total Risk Management Liabilities | 1.0 | 0.2
Level 3 | Fair Value Hedges |  |
Risk Management Liabilities |  |
Total Risk Management Liabilities | 0.0 | 0.0
Level 3 | Restricted Cash |  |
Other Temporary Investments and Restricted Cash |  |
Restricted Cash | 0.0 | 0.0
Level 3 | Other Cash Deposits |  |
Other Temporary Investments and Restricted Cash |  |
Total Other Temporary Investments and Restricted Cash | 0.0 | 0.0
Level 3 | Fixed Income Securities – Mutual Funds |  |
Other Temporary Investments and Restricted Cash |  |
Total Other Temporary Investments and Restricted Cash | 0.0 | 0.0
Level 3 | Equity Securities – Mutual Funds |  |
Other Temporary Investments and Restricted Cash |  |
Total Other Temporary Investments and Restricted Cash | 0.0 | 0.0
Level 3 | Cash and Cash Equivalents |  |
Spent Nuclear Fuel and Decommissioning Trusts |  |
Spent Nuclear Fuel and Decommissioning Trusts | 0.0 | 0.0
Level 3 | Cash and Cash Equivalents | I&M |  |
Spent Nuclear Fuel and Decommissioning Trusts |  |
Spent Nuclear Fuel and Decommissioning Trusts | 0.0 | 0.0
Level 3 | United States Government |  |
Spent Nuclear Fuel and Decommissioning Trusts |  |
Spent Nuclear Fuel and Decommissioning Trusts | 0.0 | 0.0
Level 3 | United States Government | I&M |  |
Spent Nuclear Fuel and Decommissioning Trusts |  |
Spent Nuclear Fuel and Decommissioning Trusts | 0.0 | 0.0
Level 3 | Corporate Debt |  |
Spent Nuclear Fuel and Decommissioning Trusts |  |
Spent Nuclear Fuel and Decommissioning Trusts | 0.0 | 0.0
Level 3 | Corporate Debt | I&M |  |
Spent Nuclear Fuel and Decommissioning Trusts |  |
Spent Nuclear Fuel and Decommissioning Trusts | 0.0 | 0.0
Level 3 | Subtotal Fixed Income Securities |  |
Spent Nuclear Fuel and Decommissioning Trusts |  |
Spent Nuclear Fuel and Decommissioning Trusts | 0.0 | 0.0
Level 3 | Subtotal Fixed Income Securities | I&M |  |
Spent Nuclear Fuel and Decommissioning Trusts |  |
Spent Nuclear Fuel and Decommissioning Trusts | 0.0 | 0.0
Level 3 | Equity Securities - Domestic |  |
Spent Nuclear Fuel and Decommissioning Trusts |  |
Spent Nuclear Fuel and Decommissioning Trusts | 0.0 |
Level 3 | Domestic |  |
Spent Nuclear Fuel and Decommissioning Trusts |  |
Spent Nuclear Fuel and Decommissioning Trusts |  | 0.0
Level 3 | Domestic | I&M |  |
Spent Nuclear Fuel and Decommissioning Trusts |  |
Spent Nuclear Fuel and Decommissioning Trusts | $ 0.0 | $ 0.0

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