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TAXES - Reconciliation of Federal Income Tax Expense (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Reconciliation of federal income tax expense at the federal statutory rate to the total provision for income taxes |  |  |
Income from continuing operations, before income taxes | $ 1,504 | $ 1,464 | $ 1,439
Federal income tax expense at the 21% statutory rate | 316 | 307 | 302
Increases (reductions) in taxes resulting from- |  |  |
State and municipal income taxes, net of federal tax benefit | 140 | 80 | 56
AFUDC equity and other flow-through | (30) | (30) | (26)
Amortization of investment tax credits | (4) | (3) | (4)
Deductions associated with certain equity method investments | (19) | 0 | 0
Taxes related to the combined sale of 49.9% of the equity interests of FET | 6 | 58 | 752
Federal tax credits claimed | (2) | (3) | (3)
Tax on distributions from FET | 16 | 0 | 0
Excess deferred tax amortization due to the Tax Act | (52) | (46) | (51)
Nondeductible SEC and OAG settlements | 27 | 0 | 0
Remeasurement of excess deferred income taxes | (43) | 0 | 0
Uncertain tax positions | 0 | 41 | 2
Valuation allowances | 16 | (146) | (47)
Other, net | 6 | 9 | 19
Total income taxes on income from continuing operations | $ 377 | $ 267 | $ 1,000
Effective income tax rate (percent) | 25.10% | 18.20% | 69.50%

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