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Property, Plant, and Equipment (Schedule of AFUDC and Interest Capitalized) (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Property, Plant and Equipment [Abstract] |  |  |
Allowance for debt funds used during construction and interest capitalized | $ 20 | $ 13 | $ 12
Allowance for equity funds used during construction | 42 | 29 | 27
Total | 62 | 42 | 39
DTE Electric |  |  |
Property, Plant, and Equipment [Line Items] |  |  |
Allowance for debt funds used during construction | 15 | 11 | 11
Allowance for equity funds used during construction | 40 | 26 | 25
Total | $ 55 | $ 37 | $ 36

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- Definition Amount of interest capitalized, including amount of allowance for funds used during construction. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 980 -SubTopic 835 -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482064/980-835-45-1 + Details
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