Property, Plant, and Equipment (Schedule of AFUDC and Interest Capitalized) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Property, Plant and Equipment [Abstract]
Allowance for debt funds used during construction and interest capitalized	$ 36	$ 20	$ 13
Allowance for equity funds used during construction	86	42	29
Total	122	62	42
DTE Electric
Property, Plant, and Equipment [Line Items]
Allowance for debt funds used during construction	34	15	11
Allowance for equity funds used during construction	84	40	26
Total	$ 118	$ 55	$ 37