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v3.25.2

Segment and Related Information (Inter-segment Billing for Goods and Services) (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024
Segment Reporting Information [Line Items] |  |  |  |
Operating revenues | $ (3,419) | $ (2,875) | $ (7,859) | $ (6,115)
Inter-segment billing relating to Non-utility operations | (1,440) | (996) | (3,573) | (2,080)
Reclassifications and Eliminations |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating revenues | 76 | 48 | 185 | 106
Inter-segment billing relating to Non-utility operations | 57 | 27 | 143 | 64
Reclassifications and Eliminations | Electric segment |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating revenues | 17 | 18 | 36 | 36
Reclassifications and Eliminations | Gas segment |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating revenues | 4 | 3 | 8 | 7
Reclassifications and Eliminations | DTE Vantage segment |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating revenues | 11 | 7 | 51 | 18
Reclassifications and Eliminations | Energy Trading segment |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating revenues | $ 44 | $ 20 | $ 90 | $ 45

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