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Short-Term Credit Arrangements and Borrowings (Tables) | 12 Months Ended
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Dec. 31, 2024
Short-Term Debt [Abstract] |
Schedule of Line of Credit Facilities | The availability under the facilities in place at December 31, 2024 is shown in the following table:
| DTE Energy |  | DTE Electric |  | DTE Gas |  | Total
| (In millions)
Unsecured revolving credit facility, expiring October 2029 | $ | 1,500 |  |  | $ | 800 |  |  | $ | 300 |  |  | $ | 2,600 |
Unsecured letter of credit facility, expiring June 2025(a) | 175 |  |  | — |  |  | — |  |  | 175 |
Unsecured letter of credit facility, expiring February 2025 | 150 |  |  | — |  |  | — |  |  | 150 |
Unsecured letter of credit facilities, expiring June 2026 | 100 |  |  | — |  |  | — |  |  | 100 |
Unsecured letter of credit facility(b) | 50 |  |  | — |  |  | — |  |  | 50 |
Unsecured letter of credit facility(c) | — |  |  | 125 |  |  | — |  |  | 125 |
| 1,975 |  |  | 925 |  |  | 300 |  |  | 3,200 |
Amounts outstanding at December 31, 2024 |  |  |  |  |  |  |
Commercial paper issuances | 392 |  |  | 666 |  |  | 9 |  |  | 1,067 |
Letters of credit | 117 |  |  | 124 |  |  | — |  |  | 241 |
| 509 |  |  | 790 |  |  | 9 |  |  | 1,308 |
Net availability at December 31, 2024 | $ | 1,466 |  |  | $ | 135 |  |  | $ | 291 |  |  | $ | 1,892 |
_______________________________________ (a)Uncommitted letter of credit facility. (b)Uncommitted letter of credit facility with automatic renewal provision and therefore no expiration. (c)Uncommitted letter of credit facility with automatic renewal provision and therefore no expiration. DTE Energy may also utilize availability under this facility.

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- Definition Tabular disclosure of short-term or long-term contractual arrangements with lenders, including letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)(b)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(19)(b)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 + Details
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