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Short-Term Credit Arrangements and Borrowings (Details Textuals) | Dec. 31, 2022 USD ($) | Jun. 30, 2022 USD ($) | May 31, 2022 USD ($) | Dec. 31, 2021 USD ($)
--- | --- | --- | --- | ---
Short-term Debt [Line Items] |  |  |  |
Maximum borrowing capacity | $ 3,256,000,000 |  |  |
Weighted average interest rate | 4.60% |  |  | 0.30%
Dividend restriction | $ 2,800,000,000 |  |  |
Retained earnings | 3,808,000,000 |  |  | $ 3,438,000,000
Effective limitations | 0 |  |  |
DTE Electric |  |  |  |
Short-term Debt [Line Items] |  |  |  |
Maximum borrowing capacity | $ 800,000,000 |  |  |
Total funded debt to capitalization ratio | 0.51 |  |  |
Weighted average interest rate | 4.60% |  |  | 0.20%
Retained earnings | $ 3,093,000,000 |  |  | $ 2,901,000,000
DTE Electric | Maximum |  |  |  |
Short-term Debt [Line Items] |  |  |  |
Total funded debt to capitalization ratio | 0.65 |  |  |
DTE Gas |  |  |  |
Short-term Debt [Line Items] |  |  |  |
Maximum borrowing capacity | $ 300,000,000 |  |  |
Total funded debt to capitalization ratio | 0.49 |  |  |
DTE Gas | Maximum |  |  |  |
Short-term Debt [Line Items] |  |  |  |
Total funded debt to capitalization ratio | 0.65 |  |  |
Unsecured Letter Of Credit Facility, Expiring In June 2023 | Letters of credit |  |  |  |
Short-term Debt [Line Items] |  |  |  |
Maximum borrowing capacity | $ 375,000,000 |  |  |
Unsecured Letter Of Credit Facility, Expiring In June 2023 | Letters of credit | DTE Electric |  |  |  |
Short-term Debt [Line Items] |  |  |  |
Maximum borrowing capacity | 0 |  |  |
Unsecured Letter Of Credit Facility, Expiring In June 2023 | Letters of credit | DTE Gas |  |  |  |
Short-term Debt [Line Items] |  |  |  |
Maximum borrowing capacity | 0 |  |  |
DTE Energy |  |  |  |
Short-term Debt [Line Items] |  |  |  |
Maximum borrowing capacity | $ 2,156,000,000 |  |  |
Total funded debt to capitalization ratio | 0.63 |  |  |
DTE Energy | Maximum |  |  |  |
Short-term Debt [Line Items] |  |  |  |
Total funded debt to capitalization ratio | 0.70 |  |  |
DTE Energy | Demand financing agreement |  |  |  |
Short-term Debt [Line Items] |  |  |  |
Maximum borrowing capacity | $ 200,000,000 |  |  |
Amount outstanding | 166,000,000 |  |  | $ 103,000,000
DTE Energy | Unsecured Letter Of Credit Facility, Expiring In June 2023 | Letters of credit |  |  |  |
Short-term Debt [Line Items] |  |  |  |
Maximum borrowing capacity | $ 375,000,000 | $ 375,000,000 | $ 70,000,000 |

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