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v3.23.3

Significant Accounting Policies (Income Taxes) (Details) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022
Schedule of Income Taxes [Line Items] |  |  |  |
Statutory federal income tax rate | 21.00% | 21.00% | 21.00% | 21.00%
Increase (decrease) due to: |  |  |  |
State and local income taxes, net of federal benefit | 4.80% | 4.40% | 4.50% | 4.50%
Production tax credits | (7.80%) | (9.10%) | (6.40%) | (9.40%)
TCJA amortization | (4.90%) | (13.60%) | (4.20%) | (14.80%)
Investment tax credits | (3.80%) | 0.00% | (2.60%) | (0.10%)
Enactment of West Virginia income tax legislation, net of federal benefit | 0.00% | 0.00% | (0.60%) | 0.00%
Other | (3.00%) | (1.20%) | (1.90%) | (1.20%)
Effective Tax Rate | 6.30% | 1.50% | 9.80% | 0.00%
DTE Electric |  |  |  |
Schedule of Income Taxes [Line Items] |  |  |  |
Statutory federal income tax rate | 21.00% | 21.00% | 21.00% | 21.00%
Increase (decrease) due to: |  |  |  |
State and local income taxes, net of federal benefit | 5.70% | 5.70% | 5.70% | 5.70%
Production tax credits | (11.10%) | (9.50%) | (9.40%) | (9.20%)
TCJA amortization | (6.90%) | (14.60%) | (5.90%) | (15.00%)
Other | (1.90%) | (0.90%) | (2.20%) | (0.90%)
Effective Tax Rate | 6.80% | 1.70% | 9.20% | 1.60%

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