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Revenue (Revenues Outside the Scope of Topic 606) (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2024 | Mar. 31, 2023
Disaggregation of Revenue [Line Items] |  |
Leases | $ 14 | $ 15
Operating segments | Electric |  |
Disaggregation of Revenue [Line Items] |  |
Other revenues | 4 | 5
Operating segments | Gas |  |
Disaggregation of Revenue [Line Items] |  |
Other revenues | 2 | 3
Alternative Revenue Program | 6 | 3
Operating segments | DTE Vantage |  |
Disaggregation of Revenue [Line Items] |  |
Leases | 14 | 15
Operating segments | Energy Trading |  |
Disaggregation of Revenue [Line Items] |  |
Derivatives | $ 659 | $ 1,161

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