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Revenue (Disaggregation of Revenue by Segment) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Disaggregation of Revenue [Line Items] |  |  |
Revenues | $ 19,228 | $ 14,964 | $ 11,423
Electric |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues | 6,412 | 5,821 | 5,520
Electric | Residential |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues | 2,911 | 2,926 | 2,825
Electric | Commercial |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues | 1,958 | 1,908 | 1,739
Electric | Industrial |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues | 659 | 628 | 592
Electric | Other |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues | 884 | 359 | 364
Electric | Other | DTE Sustainable Generation |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues | 15 | 12 | 14
Gas |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues | 1,924 | 1,553 | 1,414
Gas | Other |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues | 137 | 180 | 146
Gas | Gas sales |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues | 1,442 | 1,058 | 971
Gas | End User Transportation |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues | 264 | 233 | 218
Gas | Intermediate Transportation |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues | 81 | 82 | 79
DTE Vantage |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues | 848 | 1,482 | 1,224
Energy Trading |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenues | $ 10,308 | $ 6,831 | $ 3,863

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