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v3.23.3

Short-Term Credit Arrangements and Borrowings (Details Textuals) | Sep. 30, 2023 USD ($) | Jul. 31, 2023 USD ($) | Jun. 30, 2023 USD ($) | Dec. 31, 2022 USD ($)
--- | --- | --- | --- | ---
Short-term Debt [Line Items] |  |  |  |
Maximum borrowing capacity | $ 3,175,000,000 |  |  |
DTE Electric |  |  |  |
Short-term Debt [Line Items] |  |  |  |
Maximum borrowing capacity | $ 900,000,000 |  |  |
Ratio of indebtedness to net capital | 0.54 |  |  |
DTE Gas |  |  |  |
Short-term Debt [Line Items] |  |  |  |
Maximum borrowing capacity | $ 300,000,000 |  |  |
Ratio of indebtedness to net capital | 0.46 |  |  |
Maximum | DTE Electric |  |  |  |
Short-term Debt [Line Items] |  |  |  |
Ratio of indebtedness to net capital | 0.65 |  |  |
Maximum | DTE Gas |  |  |  |
Short-term Debt [Line Items] |  |  |  |
Ratio of indebtedness to net capital | 0.65 |  |  |
$100 million uncommitted letter of credit facility | Letters of credit |  |  |  |
Short-term Debt [Line Items] |  |  |  |
Maximum borrowing capacity | $ 100,000,000 |  | $ 100,000,000 |
$100 million uncommitted letter of credit facility | DTE Electric | Letters of credit |  |  |  |
Short-term Debt [Line Items] |  |  |  |
Maximum borrowing capacity | 100,000,000 |  |  |
$100 million uncommitted letter of credit facility | DTE Gas | Letters of credit |  |  |  |
Short-term Debt [Line Items] |  |  |  |
Maximum borrowing capacity | 0 |  |  |
$50 million uncommitted letter of credit facility | Letters of credit |  |  |  |
Short-term Debt [Line Items] |  |  |  |
Maximum borrowing capacity | 50,000,000 |  |  |
$50 million uncommitted letter of credit facility | DTE Electric | Letters of credit |  |  |  |
Short-term Debt [Line Items] |  |  |  |
Maximum borrowing capacity | 0 |  |  |
$50 million uncommitted letter of credit facility | DTE Gas | Letters of credit |  |  |  |
Short-term Debt [Line Items] |  |  |  |
Maximum borrowing capacity | 0 |  |  |
DTE Energy |  |  |  |
Short-term Debt [Line Items] |  |  |  |
Maximum borrowing capacity | $ 1,975,000,000 |  |  |
Ratio of indebtedness to net capital | 0.64 |  |  |
DTE Energy | Demand financing agreement |  |  |  |
Short-term Debt [Line Items] |  |  |  |
Maximum borrowing capacity, financing agreement | $ 200,000,000 |  |  |
Amount outstanding | $ 139,000,000 |  |  | $ 166,000,000
DTE Energy | Maximum |  |  |  |
Short-term Debt [Line Items] |  |  |  |
Ratio of indebtedness to net capital | 0.70 |  |  |
DTE Energy | DTE Energy Revolver | Letters of credit |  |  |  |
Short-term Debt [Line Items] |  |  |  |
Maximum borrowing capacity | $ 500,000,000 |  |  |
DTE Energy | $100 million uncommitted letter of credit facility | Letters of credit |  |  |  |
Short-term Debt [Line Items] |  |  |  |
Maximum borrowing capacity | 0 |  |  |
DTE Energy | $50 million uncommitted letter of credit facility | Letters of credit |  |  |  |
Short-term Debt [Line Items] |  |  |  |
Maximum borrowing capacity | $ 50,000,000 | $ 50,000,000 |  |

X
- Definition Amount borrowed under the financing agreement as of the balance sheet date. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Maximum borrowing capacity under the financing agreement without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the agreement. + References No definition available. + Details
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Namespace Prefix: | dte_
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Period Type: | instant

X
- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
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