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Acquisition | 9 Months Ended
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Sep. 30, 2025
Business Combination [Abstract] |
Acquisition | ACQUISITION Electric Segment Acquisition Effective August 14, 2025, DTE Sustainable Generation closed on the purchase of a 123 MW cogeneration facility, located in Michigan, from Osaka Gas USA Corporation. The acquisition adds generating capacity to DTE Energy's portfolio. Direct transaction costs, primarily related to advisory fees, were immaterial and were included in Operation and maintenance in DTE Energy's Consolidated Statements of Operations for the period incurred. The fair value of consideration provided for the acquisition was approximately $216 million, including preliminary working capital adjustments. The purchase price, which was paid in cash, is subject to final working capital settlement adjustments that will be determined subsequent to the third quarter of 2025. The acquisition was accounted for using the acquisition method of accounting for business combinations. Accordingly, the cost was allocated to the underlying net assets based on their respective fair values as shown below:
| (In millions)
Cash | $ | 5 |
Contract intangibles | 57 |
Property, plant, and equipment, net | 135 |
Working capital, other assets and liabilities | 19 |
Total | $ | 216 |
The intangible assets recorded pertain to existing customer contracts and were estimated by applying the income approach, based on discounted projected cash flows attributable to the existing agreements. The contract intangible assets are amortized on a straight-line basis with remaining useful lives of 5 years in conjunction with the associated contracts' remaining terms. The pro forma financial information has not been presented for DTE Energy because the effects of the acquisition were not material to DTE Energy’s Consolidated Statements of Operations. The acquired project constitutes non-utility operations and related revenues are classified accordingly as Operating Revenues — Non-utility operations within DTE Energy's Consolidated Statements of Operations and the Electric segment Results of Operations. Refer to Note 16 to the Consolidated Financial Statements, "Segment and Related Information."

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