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Leases (Details Textuals) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Lessee, Lease, Description [Line Items] |  |  |
Depreciation expense associated with property under operating leases | $ 9 | $ 8 | $ 11
Minimum |  |  |
Lessee, Lease, Description [Line Items] |  |  |
Lessee, lease terms | 1 year |  |
Lessor, operating lease term | 9 years |  |
Maximum |  |  |
Lessee, Lease, Description [Line Items] |  |  |
Lessee, lease terms | 52 years |  |
Lessor, operating lease term | 24 years |  |
DTE Electric | Minimum |  |  |
Lessee, Lease, Description [Line Items] |  |  |
Lessee, lease terms | 1 year |  |
DTE Electric | Maximum |  |  |
Lessee, Lease, Description [Line Items] |  |  |
Lessee, lease terms | 52 years |  |

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 7A -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478964/842-20-50-7A Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org/1943274/2147478964/842-20-50-3 + Details
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- Definition Term of lessor's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 842 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a)(3) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479773/842-30-50-3 + Details
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- Definition Amount of depreciation expense for lessor's underlying asset for which right to use has been conveyed to lessee under operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479773/842-30-50-13 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 360 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482099/360-10-50-1 + Details
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