Regulatory Matters (2024 Gas Rate Case Filing) (Details) - MPSC - DTE Gas - USD ($) $ in Millions		12 Months Ended
	Jan. 08, 2024	Dec. 31, 2023
Public Utilities, General Disclosures [Line Items]
Approved return on equity, percent		9.90%
2024 DTE Gas Rate Case Filing | Subsequent Event
Public Utilities, General Disclosures [Line Items]
Requested rate increase	$ 266
Approved return on equity, percent	9.90%
Requested return on equity, percent	10.25%
2024 DTE Gas Rate Case Filing | Subsequent Event | Recovery Mechanism, Customer Rate Increase
Public Utilities, General Disclosures [Line Items]
Requested rate increase	$ 160
2024 DTE Gas Rate Case Filing | Subsequent Event | Recovery Mechanism, Infrastructure Recovery
Public Utilities, General Disclosures [Line Items]
Requested rate increase	$ 106