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Property, Plant, and Equipment (Schedule of AFUDC and Interest Capitalized) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Property, Plant and Equipment [Abstract] |  |  |
Allowance for debt funds used during construction and interest capitalized | $ 36 | $ 20 | $ 13
Allowance for equity funds used during construction | 86 | 42 | 29
Total | 122 | 62 | 42
DTE Electric |  |  |
Property, Plant, and Equipment [Line Items] |  |  |
Allowance for debt funds used during construction | 34 | 15 | 11
Allowance for equity funds used during construction | 84 | 40 | 26
Total | $ 118 | $ 55 | $ 37

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