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Short-Term Credit Arrangements and Borrowings (Tables) | 12 Months Ended
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Dec. 31, 2022
Short-Term Debt [Abstract] |
Schedule of Line of Credit Facilities | The availability under the facilities in place at December 31, 2022 is shown in the following table:
| DTE Energy |  | DTE Electric |  | DTE Gas |  | Total
| (In millions)
Unsecured revolving credit facility, expiring October 2027 | $ | 1,500 |  |  | $ | 800 |  |  | $ | 300 |  |  | $ | 2,600 |
Unsecured Canadian revolving credit facility, expiring May 2023 | 81 |  |  | — |  |  | — |  |  | 81 |
Unsecured letter of credit facility, expiring February 2025 | 150 |  |  | — |  |  | — |  |  | 150 |
Unsecured letter of credit facility, expiring June 2023 | 375 |  |  | — |  |  | — |  |  | 375 |
Unsecured letter of credit facility(a) | 50 |  |  | — |  |  | — |  |  | 50 |
| 2,156 |  |  | 800 |  |  | 300 |  |  | 3,256 |
Amounts outstanding at December 31, 2022 |  |  |  |  |  |  |
Revolver borrowings | 81 |  |  | — |  |  | — |  |  | 81 |
Commercial paper issuances | 271 |  |  | 568 |  |  | 242 |  |  | 1,081 |
Letters of credit | 340 |  |  | — |  |  | — |  |  | 340 |
| 692 |  |  | 568 |  |  | 242 |  |  | 1,502 |
Net availability at December 31, 2022 | $ | 1,464 |  |  | $ | 232 |  |  | $ | 58 |  |  | $ | 1,754 |
_______________________________________ (a)Uncommitted letter of credit facility with automatic renewal provision for each July and therefore no expiration.

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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 -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- References No definition available. + Details
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