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Long-Term Debt | 9 Months Ended
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Sep. 30, 2025
Debt Disclosure [Abstract] |
Long-Term Debt | LONG-TERM DEBT Debt Issuances Refer to the table below for debt issued through September 30, 2025:
Company |  | Month |  | Type |  | Interest Rate |  | Maturity Date |  | Amount
|  |  |  |  |  |  |  |  |  | (In millions)
DTE Energy |  | February |  | Senior Notes(a) |  | 5.20% |  | 2030 |  | $ | 1,100 |
DTE Electric |  | May |  | Mortgage Bonds(b) |  | 5.25% |  | 2035 |  | 500 |
DTE Electric |  | May |  | Mortgage Bonds(b) |  | 5.85% |  | 2055 |  | 500 |
DTE Electric |  | May |  | Mortgage Bonds(b) |  | 4.25% |  | 2027 |  | 300 |
DTE Energy |  | September |  | Senior Notes(a) |  | 4.88% |  | 2028 |  | 250 |
DTE Energy |  | September |  | Senior Notes(a) |  | 5.05% |  | 2035 |  | 550 |
DTE Energy |  | September |  | Junior Subordinated Debentures(a) |  | 6.25% |  | 2085 |  | 600 |
DTE Gas |  | September |  | Mortgage Bonds(b) |  | 4.71% |  | 2031 |  | 50 |
DTE Gas |  | September |  | Mortgage Bonds(b) |  | 5.36% |  | 2037 |  | 75 |
DTE Gas |  | September |  | Mortgage Bonds(b) |  | 5.96% |  | 2055 |  | 135 |
|  |  |  |  |  |  |  |  |  | $ | 4,060 |
_______________________________________ (a)Proceeds used for the repayment of short-term borrowings and for general corporate purposes. (b)Proceeds used for the repayment of short-term borrowings, for capital expenditures, and for other general corporate purposes. Debt Redemptions Refer to the table below for debt redeemed through September 30, 2025:
Company |  | Month |  | Type |  | Interest Rate |  | Maturity Date |  | Amount
|  |  |  |  |  |  |  |  |  | (In millions)
DTE Electric |  | March |  | Mortgage Bonds |  | 3.38% |  | 2025 |  | $ | 350 |
DTE Electric |  | March |  | Securitization Bonds |  | 5.97% |  | 2025 |  | 15
DTE Energy |  | June |  | Senior Notes |  | 1.05% |  | 2025 |  | 800 |
DTE Electric |  | June |  | Securitization Bonds |  | 2.64% |  | 2025 |  | 20 |
DTE Electric |  | September |  | Securitization Bonds |  | 5.97% |  | 2025 |  | 15 |
|  |  |  |  |  |  |  |  |  | $ | 1,200 |

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- Definition The entire disclosure for long-term debt. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 470 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/470/tableOfContent + Details
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