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Regulatory Matters (2024 Gas Rate Case Filing) (Details) - MPSC - DTE Gas - USD ($) $ in Millions |  |  | 12 Months Ended
--- | --- | --- | ---
Nov. 07, 2024 | Jan. 08, 2024 | Dec. 31, 2024
Public Utilities, General Disclosures [Line Items] |  |  |
Approved return on equity, percent |  |  | 9.80%
2024 DTE Gas Rate Case Filing |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |
Requested rate increase |  | $ 266 |
Approved return on equity, percent | 9.80% | 9.90% |
Requested return on equity, percent |  | 10.25% |
Approved revenue increase | $ 114 |  |
2024 DTE Gas Rate Case Filing | Recovery Mechanism, Customer Rate Increase |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |
Requested rate increase |  | $ 160 |
2024 DTE Gas Rate Case Filing | Recovery Mechanism, Infrastructure Recovery |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |
Requested rate increase |  | $ 106 |

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