Regulatory Matters (Details Textuals) - USD ($) $ in Millions				12 Months Ended
	Jan. 21, 2022	Dec. 09, 2021	Feb. 12, 2021	Dec. 31, 2021	Dec. 28, 2021	Dec. 27, 2021	Nov. 04, 2021	Aug. 31, 2021	Jun. 23, 2021	Mar. 26, 2021	Jul. 09, 2020
Regulatory Assets [Line Items]
Deferral of investigation and remediation of costs associated with gas utilities former MGP sites				10 years
DTE Electric | MPSC
Regulatory Assets [Line Items]
Authorized issuance of securitization bonds of qualified costs, maximum									$ 236
Regulatory liability for non-plant-related accumulated deferred income tax balances that resulted from the TCJA, accelerated amortization approved											$ 102
Requested securitization financing of qualified costs										$ 184
DTE Electric | MPSC | 2022 Electric Rate Case Filing | Subsequent Event
Regulatory Assets [Line Items]
Requested rate increase	$ 388
Approved return on equity, percent	9.90%
Requested return on equity, percent	10.25%
DTE Electric | MPSC | Incremental tree trim surge
Regulatory Assets [Line Items]
Requested regulatory liability						$ 90		$ 70
Approved regulatory liability					$ 90
DTE Electric | MPSC | Incremental tree trim surge | Minimum
Regulatory Assets [Line Items]
Approved regulatory liability							$ 70
DTE Gas | MPSC | 2021 Gas Rate Case Filing
Regulatory Assets [Line Items]
Requested rate increase			$ 195
Approved return on equity, percent		9.90%	9.90%
Requested return on equity, percent			10.25%
Approved revenue increase		$ 84
Recoverable undepreciated costs on retiring plants | DTE Electric | MPSC
Regulatory Assets [Line Items]
Authorized issuance of securitization bonds of qualified costs, maximum									73
Enhanced Tree Trimming Program deferred costs | DTE Electric | MPSC
Regulatory Assets [Line Items]
Authorized issuance of securitization bonds of qualified costs, maximum									$ 157
Customer360 deferred costs
Regulatory Assets [Line Items]
Approved amortization period				15 years
Nuclear Performance Evaluation and Review Committee Tracker
Regulatory Assets [Line Items]
Approved amortization period				5 years