Regulatory Matters (Details Textuals) - MPSC - USD ($) $ in Millions	Nov. 25, 2019	Jul. 08, 2019
DTE Electric | 2019 Electric Rate Case Filing
Public Utilities, General Disclosures [Line Items]
Requested rate increase		$ 351
Return on equity percent		10.00%
Return on equity requested percent		10.50%
DTE Gas | 2019 Gas Rate Case Filing
Public Utilities, General Disclosures [Line Items]
Requested rate increase	$ 204
Return on equity percent	10.00%
Return on equity requested percent	10.50%