Consolidated Statements of Comprehensive Income (Unaudited) - DTE Energy Company - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Statement of Comprehensive Income [Abstract]
Net Income	$ 322	$ 201	$ 635	$ 646
Other comprehensive income (loss), net of tax:
Benefit obligations, net of taxes of $1 for all periods	1	0	2	1
Net unrealized gains on derivatives, net of taxes of $4, $2, $12, and $1, respectively	12	6	38	2
Foreign currency translation	(1)	2	(3)	2
Other comprehensive income	12	8	37	5
Comprehensive Income	$ 334	$ 209	$ 672	$ 651