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Significant Accounting Policies (Details Textuals) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Significant Accounting Policies [Line Items] |  |  |
Unbilled revenues | $ 2,038,000,000 | $ 1,695,000,000 |
Specific review of probable future collections based on receivable balances, threshold duration | 30 days |  |
Intangible assets amortization expense | $ 16,000,000 | 16,000,000 | $ 16,000,000
Excise and sales taxes net impact on statement of operations | 0 |  |
Charitable contributions | 0 | 25,000,000 | $ 20,000,000
Natural gas inventory |  |  |
Significant Accounting Policies [Line Items] |  |  |
LIFO inventory amount | 44,000,000 | 50,000,000 |
Excess of replacement costs over stated LIFO value | 152,000,000 | 136,000,000 |
Notes receivable |  |  |
Significant Accounting Policies [Line Items] |  |  |
Financing receivables | 80,000,000 |  |
Past due |  |  |
Significant Accounting Policies [Line Items] |  |  |
Financing receivables | $ 0 |  |
Minimum | Notes receivable |  |  |
Significant Accounting Policies [Line Items] |  |  |
Number of days after which receivable is considered delinquent | 60 days |  |
Maximum | Notes receivable |  |  |
Significant Accounting Policies [Line Items] |  |  |
Number of days after which receivable is considered delinquent | 120 days |  |
DTE Electric and DTE Gas |  |  |
Significant Accounting Policies [Line Items] |  |  |
Threshold period past due for write-off of trade accounts receivable | 150 days |  |
DTE Electric and DTE Gas | Accounts Receivable |  |  |
Significant Accounting Policies [Line Items] |  |  |
Number of days after which receivable is considered delinquent | 21 days |  |
DTE Electric |  |  |
Significant Accounting Policies [Line Items] |  |  |
Unbilled revenues | $ 727,000,000 | 694,000,000 |
DTE Electric | Notes receivable |  |  |
Significant Accounting Policies [Line Items] |  |  |
Financing receivables | 17,000,000 |  |
Unbilled revenues |  |  |
Significant Accounting Policies [Line Items] |  |  |
Unbilled revenues | 1,200,000,000 | 1,000,000,000 |
Unbilled revenues | DTE Electric |  |  |
Significant Accounting Policies [Line Items] |  |  |
Unbilled revenues | $ 290,000,000 | $ 270,000,000 |

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