Consolidated Statements of Comprehensive Income (Unaudited) - DTE Energy Company - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Statement of Comprehensive Income [Abstract]
Net Income	$ 445	$ 394
Other comprehensive income (loss), net of tax:
Benefit obligations, net of taxes of $— and $1, respectively	1	3
Net unrealized losses on derivatives, net of taxes of $(1) and $—, respectively	(4)	0
Other comprehensive income (loss)	(3)	3
Comprehensive Income	$ 442	$ 397