Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Statement of Comprehensive Income [Abstract]
Net Income	$ 903	$ 1,371	$ 1,172
Other comprehensive income (loss), net of tax:
Benefit obligations, net of taxes of $4, $3, and $2, respectively	8	8	8
Net unrealized gains (losses) on derivatives, net of taxes of $2, $1, and $(4), respectively	7	2	(12)
Foreign currency translation	0	1	1
Other comprehensive income (loss)	15	11	(3)
Comprehensive income	918	1,382	1,169
Less: Comprehensive income (loss) attributable to noncontrolling interests	(4)	3	3
Comprehensive Income Attributable to DTE Energy Company/DTE Electric Company	$ 922	$ 1,379	$ 1,166