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v3.24.3

VARIABLE INTEREST ENTITIES - Narrative (Details) $ in Millions | Sep. 30, 2024 USD ($) agreement subsidiary | Dec. 31, 2023 USD ($) | Feb. 02, 2023 | Jun. 30, 2013 USD ($)
--- | --- | --- | --- | ---
Variable Interest Entity [Line Items] |  |  |  |
Assets | $ 50,756 | $ 48,767 |  |
Liabilities | $ 37,064 | 37,851 |  |
Number of subsidiaries that issued environmental control bonds | subsidiary | 2 |  |  |
Long-term pollution control bond | $ 188 | 218 |  |
Restricted cash | $ 26 | 42 |  |
Number of long-term purchase power agreements | agreement | 4 |  |  |
FET |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |
Noncontrolling interest, ownership percentage by noncontrolling owners | 49.90% |  |  |
Phase In Recovery Bonds |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |
Long-term debt and other long-term obligations | $ 175 | 191 |  |
FE | FET |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |
Minority interest ownership percentage sold percentage |  |  | 0.30 |
Ownership percentage by parent | 50.10% |  |  |
Ohio Funding Companies | Phase In Recovery Bonds |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |
Face amount of debt |  |  |  | $ 445
MP, PE and the Ohio Companies |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |
Restricted cash | $ 24 | 40 |  |
Variable Interest Entity, Primary Beneficiary |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |
Assets | 11,624 | 10,984 |  |
Liabilities | 8,609 | 7,426 |  |
Variable Interest Entity, Primary Beneficiary | FE |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |
Assets | 11,600 | 11,000 |  |
Liabilities | $ 9,000 | $ 7,800 |  |

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