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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-SubTopic 10
-Name Accounting Standards Codification
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Long-Term Debt (Schedule of Debt Redeemed) (Details) - USD ($) $ in Millions	1 Months Ended			6 Months Ended
	Jun. 30, 2023	May 31, 2023	Apr. 30, 2023	Jun. 30, 2023	Jun. 30, 2022
Debt Instrument, Redemption [Line Items]
Amount				$ 1,044	$ 250
Unsecured term loan \| June 2022 Unsecured Term Loan
Debt Instrument, Redemption [Line Items]
Amount	$ 200	$ 800
DTE Gas \| Senior Notes \| 2008 Series C 6.44% Senior Notes
Debt Instrument, Redemption [Line Items]
Interest rate			6.44%
Amount			$ 25
DTE Electric
Debt Instrument, Redemption [Line Items]
Amount				$ 19	$ 250
DTE Electric \| Securitization Bonds \| 2.64% Securitization Bonds
Debt Instrument, Redemption [Line Items]
Interest rate	2.64%			2.64%
Amount	$ 19