Income Taxes - MEC - Reconciliation of Effective Income Tax Rate (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Amount | ||||
| U.S. federal statutory income tax rate | $ 163 | $ 115 | $ 347 | $ 315 |
| State and local income taxes, net of federal income tax effect | 11 | 18 | 29 | 32 |
| Energy-related tax credits | (415) | (390) | (979) | (950) |
| Other adjustments: | ||||
| Effects of ratemaking | (30) | (20) | (49) | (45) |
| Total | $ (333) | $ (357) | $ (763) | $ (756) |
| Percent | ||||
| U.S. federal statutory income tax rate | 21.00% | 21.00% | 21.00% | 21.00% |
| State and local income taxes, net of federal income tax | 1.40% | 3.30% | 1.70% | 2.20% |
| Energy-related tax credits | (53.50%) | (71.50%) | (59.20%) | (63.40%) |
| Other adjustments: | ||||
| Effects of ratemaking | (3.70%) | (3.70%) | (2.90%) | (3.00%) |
| Effective income tax rate | (42.90%) | (65.60%) | (46.10%) | (50.50%) |
| MEC | ||||
| Amount | ||||
| U.S. federal statutory income tax rate | $ 14 | $ 14 | $ 21 | $ 13 |
| State and local income taxes, net of federal income tax effect | (1) | (1) | (2) | (1) |
| Energy-related tax credits | (205) | (191) | (427) | (427) |
| Other adjustments: | ||||
| Effects of ratemaking | (1) | 0 | (1) | 1 |
| Total | $ (193) | $ (178) | $ (409) | $ (414) |
| Percent | ||||
| U.S. federal statutory income tax rate | 21.00% | 21.00% | 21.00% | 21.00% |
| State and local income taxes, net of federal income tax | (2.90%) | (1.50%) | (2.00%) | (1.60%) |
| Energy-related tax credits | (292.90%) | (285.10%) | (418.60%) | (677.80%) |
| Other adjustments: | ||||
| Effects of ratemaking | (1.40%) | 0.00% | (1.00%) | 1.60% |
| Effective income tax rate | (276.20%) | (265.60%) | (400.60%) | (656.80%) |
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- Definition Effective Income Tax Rate Reconciliation, Effects Of Ratemaking, Amount No definition available.
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- Definition Effective Income Tax Rate Reconciliation, Effects Of Ratemaking, Percent No definition available.
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- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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- Definition Percentage of domestic federal statutory tax rate applicable to pretax income (loss). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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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 applicable to state and local income tax expense (benefit), net of federal tax expense (benefit). Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of reported income tax benefit (expense) from difference to income tax expense (benefit) computed by applying statutory federal (national) income tax rate to pretax income (loss) from continuing operation, attributable to energy-related tax credit. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Percentage of reported income tax benefit (expense) from difference to income tax expense (benefit) computed by applying statutory federal (national) income tax rate to pretax income (loss) from continuing operation, attributable to energy-related tax credit. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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| X | ||||||||||
- Definition The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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| X | ||||||||||
- Definition Amount 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 state and local income tax expense (benefit). Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Details
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