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Organization and Basis of Presentation (Details Textuals) customer in Millions, $ in Millions	Dec. 31, 2024 USD ($) customer	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of electric utility customers \| customer	2.3
Number of gas utility customers \| customer	1.3
Variable Interest Entity [Line Items]
Material potential exposure	$ 0
Investments in equity method investees	128	$ 166	$ 165
Amount in excess of carrying amount	94	$ 101
DTE Electric
Variable Interest Entity [Line Items]
Material potential exposure	$ 0

This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

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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.

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