Property, Plant, and Equipment (Schedule of AFUDC and Interest Capitalized) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Property, Plant and Equipment [Abstract]
Allowance for debt funds used during construction and interest capitalized	$ 13	$ 12	$ 11
Allowance for equity funds used during construction	29	27	25
Total	42	39	36
DTE Electric
Property, Plant, and Equipment [Line Items]
Allowance for debt funds used during construction	11	11	10
Allowance for equity funds used during construction	26	25	23
Total	$ 37	$ 36	$ 33