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Revenue (Revenues Outside the Scope of Topic 606) (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022
Disaggregation of Revenue [Line Items] |  |  |  |
Leases | $ 19 | $ 24 | $ 44 | $ 63
Operating segments | Electric |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Other revenues | 8 | 7 | 18 | 15
Operating segments | Gas |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Other revenues | 2 | 2 | 7 | 6
Alternative Revenue Program | 0 | 0 | 4 | 0
Operating segments | DTE Vantage |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Leases | 19 | 24 | 44 | 63
Operating segments | Energy Trading |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Derivatives | $ 670 | $ 2,531 | $ 2,527 | $ 6,691

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