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Commitments and Contingencies Commitments and Contingencies (Narrative) (Details) - USD ($) $ in Thousands | 1 Months Ended | 6 Months Ended
--- | --- | ---
Jul. 31, 2023 | Mar. 31, 2023 | Jun. 30, 2023 | Jun. 30, 2022
Loss Contingencies [Line Items] |  |  |  |
Litigation proceeds for reimbursement of spent nuclear fuel storage costs |  |  | $ 17,933 | $ 32,367
Indian Point | Subsequent Event [Member] |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Litigation Settlement, Amount Awarded from Other Party | $ 59,000 |  |  |
Entergy Arkansas [Member] |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Litigation proceeds for reimbursement of spent nuclear fuel storage costs |  |  | $ 17,933 | $ 0
Entergy Arkansas [Member] | ANO |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Litigation Settlement, Amount Awarded from Other Party |  | $ 41,000 |  |
Damages awarded for previously recorded operation and maintenance |  | 10,000 |  |
Damages awarded for previously recorded taxes other than income taxes |  | 2,000 |  |
Damages awarded for previously capitalized nuclear fuel expense [Abstract] |  | 8,000 |  |
Damages awarded for previously recorded materials and supplies [Abstract] |  | 3,000 |  |
Damages awarded for previously recorded nuclear fuel expense |  | $ 18,000 |  |

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