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v3.25.1

Significant Accounting Policies (Tables) | 3 Months Ended
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Mar. 31, 2025
Accounting Policies [Abstract] |
Schedule of Other Income | The following is a summary of DTE Energy's Other income:
|  |  | Three Months Ended March 31,
|  |  |  |  | 2025 |  | 2024
|  |  |  |  | (In millions)
Allowance for equity funds used during construction |  |  |  |  | $ | 24 |  |  | $ | 18 |
Contract services |  |  |  |  | 9 |  |  | 7 |
Equity earnings (losses) of equity method investees |  |  |  |  | 7 |  |  | (8) |
Investment income(a) |  |  |  |  | 1 |  |  | 6 |
Other |  |  |  |  | 3 |  |  | 4 |
|  |  |  |  | $ | 44 |  |  | $ | 27 |
_______________________________________ (a)Investment losses are recorded separately to Other expenses on the Consolidated Statements of Operations. The following is a summary of DTE Electric's Other income:
|  |  | Three Months Ended March 31,
|  |  |  |  | 2025 |  | 2024
|  |  |  |  | (In millions)
Allowance for equity funds used during construction |  |  |  |  | $ | 24 |  |  | $ | 18 |
Contract services |  |  |  |  | 9 |  |  | 6 |
Investment income(a) |  |  |  |  | 1 |  |  | 5 |
Other |  |  |  |  | 2 |  |  | 3 |
|  |  |  |  | $ | 36 |  |  | $ | 32 |
_______________________________________ (a)Investment losses are recorded separately to Other expenses on the Consolidated Statements of Operations.
Schedule of Effective Income Tax Rate Reconciliation | The tables below summarize how the Registrants' effective income tax rates have varied from the statutory federal income tax rate:
|  |  | Three Months Ended March 31,
|  |  |  |  | 2025 |  | 2024
DTE Energy |  |  |  |  |  |  |
Statutory federal income tax rate |  |  |  |  | 21.0 | % |  | 21.0 | %
Increase (decrease) due to: |  |  |  |  |  |  |
State and local income taxes, net of federal benefit |  |  |  |  | 4.2 |  |  | 4.1 |
Investment tax credits |  |  |  |  | (13.1) |  |  | (3.1) |
Production tax credits |  |  |  |  | (10.5) |  |  | (8.3) |
TCJA regulatory liability amortization |  |  |  |  | (4.5) |  |  | (4.9) |
AFUDC equity |  |  |  |  | (1.5) |  |  | (1.2) |
Other |  |  |  |  | 0.2 |  |  | (1.4) |
Effective income tax rate |  |  |  |  | (4.2) | % |  | 6.2 | %
|  |  | Three Months Ended March 31,
|  |  |  |  | 2025 |  | 2024
DTE Electric |  |  |  |  |  |  |
Statutory federal income tax rate |  |  |  |  | 21.0 | % |  | 21.0 | %
Increase (decrease) due to: |  |  |  |  |  |  |
State and local income taxes, net of federal benefit |  |  |  |  | 5.7 |  |  | 5.3 |
Investment tax credits |  |  |  |  | (16.6) |  |  | (0.2) |
Production tax credits |  |  |  |  | (7.0) |  |  | (9.7) |
TCJA regulatory liability amortization |  |  |  |  | (4.6) |  |  | (5.1) |
AFUDC equity |  |  |  |  | (1.8) |  |  | (1.5) |
Other |  |  |  |  | 0.4 |  |  | (0.2) |
Effective income tax rate |  |  |  |  | (2.9) | % |  | 9.6 | %
Schedule of Financing Receivables Classified by Internal Grade of Credit Risk | The following represents the Registrants' financing receivables by year of origination, classified by internal grade of credit risk, including current year-to-date gross write-offs, if any. The related credit quality indicators and risk ratings utilized to develop the internal grades have been updated through March 31, 2025.
| DTE Energy |  | DTE Electric
| Year of Origination
| 2025 |  | 2024 |  | 2023 and Prior |  | Total |  | 2025 and Prior
| (In millions)
Notes receivable |  |  |  |  |  |  |  |  |
Internal grade 1 | $ | 7 |  |  | $ | 4 |  |  | $ | 27 |  |  | $ | 38 |  |  | $ | 34 |
Internal grade 2 | 2 |  |  | 669 |  |  | 256 |  |  | 927 |  |  | 1 |
Total notes receivable(a) | $ | 9 |  |  | $ | 673 |  |  | $ | 283 |  |  | $ | 965 |  |  | $ | 35 |
Net investment in leases |  |  |  |  |  |  |  |  |
Internal grade 1 | $ | — |  |  | $ | — |  |  | $ | 35 |  |  | $ | 35 |  |  | $ | — |
Internal grade 2 | — |  |  | 2 |  |  | — |  |  | 2 |  |  | — |
Total net investment in leases(a) | $ | — |  |  | $ | 2 |  |  | $ | 35 |  |  | $ | 37 |  |  | $ | — |
_______________________________________ (a)For DTE Energy, the current portion is included in Current Assets — Other on the Consolidated Statements of Financial Position. For DTE Electric, the amounts are included in Other Assets — Other on the Consolidated Statements of Financial Position.
Schedule of Roll-Forward of Activity for Financing Receivables Credit Loss Reserves | The following tables present a roll-forward of the activity for the Registrants' financing receivables credit loss reserves:
| DTE Energy |  | DTE Electric
| Trade accounts receivable |  | Other receivables |  |  |  |  |  | Total |  | Trade and other accounts receivable
| (In millions)
Beginning reserve balance, January 1, 2025 | $ | 69 |  |  | $ | 3 |  |  |  |  |  |  | $ | 72 |  |  | $ | 46 |
Current period provision | 25 |  |  | — |  |  |  |  |  |  | 25 |  |  | 10 |
Write-offs charged against allowance | (29) |  |  | — |  |  |  |  |  |  | (29) |  |  | (19) |
Recoveries of amounts previously written off | 9 |  |  | — |  |  |  |  |  |  | 9 |  |  | 6 |
Ending reserve balance, March 31, 2025 | $ | 74 |  |  | $ | 3 |  |  |  |  |  |  | $ | 77 |  |  | $ | 43 |
| DTE Energy |  | DTE Electric
| Trade accounts receivable |  | Other receivables |  |  |  |  |  | Total |  | Trade and other accounts receivable
| (In millions)
Beginning reserve balance, January 1, 2024 | $ | 62 |  |  | $ | 1 |  |  |  |  |  |  | $ | 63 |  |  | $ | 41 |
Current period provision | 74 |  |  | 2 |  |  |  |  |  |  | 76 |  |  | 49 |
Write-offs charged against allowance | (108) |  |  | — |  |  |  |  |  |  | (108) |  |  | (70) |
Recoveries of amounts previously written off | 41 |  |  | — |  |  |  |  |  |  | 41 |  |  | 26 |
Ending reserve balance, December 31, 2024 | $ | 69 |  |  | $ | 3 |  |  |  |  |  |  | $ | 72 |  |  | $ | 46 |
Schedule of Uncollectible Expense | Uncollectible expense for the Registrants is primarily comprised of the current period provision for allowance for doubtful accounts and is summarized as follows:
|  |  | Three Months Ended March 31,
|  |  |  |  | 2025 |  | 2024
|  |  |  |  | (In millions)
DTE Energy |  |  |  |  | $ | 26 |  |  | $ | 21 |
DTE Electric |  |  |  |  | $ | 10 |  |  | $ | 10 |

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