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Related Party Transactions (DTE Electric Transactions with Affiliated Companies) (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Related Party Transaction [Line Items] |  |  |
Dividends declared | $ 710,000,000 | $ 752,000,000 | $ 796,000,000
Dividends paid | $ 685,000,000 | $ 791,000,000 | 760,000,000
Affiliated entity |  |  |
Related Party Transaction [Line Items] |  |  |
Weighted average interest rate | 4.40% | 0.20% |
DTE Electric |  |  |
Related Party Transaction [Line Items] |  |  |
Dividends declared | $ 763,000,000 | $ 588,000,000 | 539,000,000
Dividends paid | 763,000,000 | 588,000,000 | 539,000,000
DTE Electric | Energy sales |  |  |
Related Party Transaction [Line Items] |  |  |
Revenues and Other Income | 8,000,000 | 9,000,000 | 8,000,000
DTE Electric | Other services and interest |  |  |
Related Party Transaction [Line Items] |  |  |
Other services and interest | 0 | 2,000,000 | 2,000,000
Costs | 1,000,000 | 0 | 1,000,000
DTE Electric | Shared capital assets |  |  |
Related Party Transaction [Line Items] |  |  |
Revenues and Other Income | 57,000,000 | 49,000,000 | 47,000,000
DTE Electric | Fuel and purchased power |  |  |
Related Party Transaction [Line Items] |  |  |
Costs | 58,000,000 | 13,000,000 | 16,000,000
DTE Electric | Corporate expenses |  |  |
Related Party Transaction [Line Items] |  |  |
Costs | 379,000,000 | 391,000,000 | 367,000,000
DTE Electric | DTE Energy |  |  |
Related Party Transaction [Line Items] |  |  |
Dividends declared | 763,000,000 | 588,000,000 | 539,000,000
Dividends paid | 763,000,000 | 588,000,000 | 539,000,000
Capital contribution from DTE Energy | 600,000,000 | 555,000,000 | 636,000,000
DTE Electric | DTE Energy Foundation |  |  |
Related Party Transaction [Line Items] |  |  |
Charitable contributions to foundation | $ 0 | $ 2,000,000 | $ 20,000,000

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