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v3.25.1

Long-Term Debt (Schedule of Debt Redeemed) (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2025 | Mar. 31, 2024
Debt Instrument, Redemption [Line Items] |  |
Amount | $ 365 | $ 100
DTE Electric |  |
Debt Instrument, Redemption [Line Items] |  |
Amount | $ 365 | $ 100
DTE Electric | Mortgage Bonds | Mortgage Bonds 3.38% Due 2025 |  |
Debt Instrument, Redemption [Line Items] |  |
Interest rate | 3.38% |
Amount | $ 350 |
DTE Electric | Securitization Bonds | 5.97% Securitization Bonds Due 2025 |  |
Debt Instrument, Redemption [Line Items] |  |
Interest rate | 5.97% |
Amount | $ 15 |

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