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Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Details) | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Income Taxes [Line Items] |  |  |  |
Statutory federal tax rate |  | 21.00% | 21.00% | 21.00%
State income taxes, net of federal income tax benefit |  | (1.30%) | (1.00%) | 0.90%
Stock-based compensation |  | 0.10% | 0.00% | 0.10%
Executive compensation limitation |  | 0.20% | 0.10% | 0.10%
Amortization of net unfunded deferred taxes |  | (7.00%) | (3.20%) | (2.10%)
Federal renewable energy credit | [1] | 0.00% | 0.00% | (2.00%)
Remeasurement of state deferred taxes due to Energy Transfer merger |  | 0.00% | 0.00% | (1.10%)
Remeasurement of state deferred tax liabilities |  | 0.00% | (0.60%) | (0.60%)
401(k) dividends |  | (0.30%) | (0.20%) | (0.20%)
Other |  | (0.80%) | (0.40%) | 0.00%
Effective income tax rate |  | 11.90% | 15.70% | 16.10%
Og and E [Member] |  |  |  |
Income Taxes [Line Items] |  |  |  |
Statutory federal tax rate |  | 21.00% | 21.00% | 21.00%
State income taxes, net of federal income tax benefit |  | 0.30% | (0.40%) | (1.40%)
Stock-based compensation |  | 0.00% | 0.00% | 0.00%
Executive compensation limitation |  | 0.00% | 0.00% | 0.00%
Amortization of net unfunded deferred taxes |  | (6.70%) | (5.00%) | (4.60%)
Federal renewable energy credit | [1] | 0.00% | 0.00% | (4.40%)
Remeasurement of state deferred taxes due to Energy Transfer merger |  | 0.00% | 0.00% | 0.00%
Remeasurement of state deferred tax liabilities |  | 0.00% | 0.00% | 0.00%
401(k) dividends |  | 0.00% | 0.00% | 0.00%
Other |  | (0.70%) | (0.80%) | (0.20%)
Effective income tax rate |  | 13.90% | 14.80% | 10.40%
[1] | Represents credits primarily associated with the production from OG&E's wind farms.

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- Definition Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to changes in the valuation allowance for deferred tax liabilities. + References No definition available. + Details
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