Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Net Income	$ 335	$ 263	$ 922	$ 832
Net Income	334	270	929	847
Other comprehensive income (loss), net of tax:
Benefit obligations, net of taxes of $—, $2, $2, and $6, respectively	2	3	7	10
Net unrealized gains on investments during the period, net of taxes of $1 for the nine months ended September 30, 2017	0	0	0	1
Net unrealized gains on derivatives during the period, net of taxes of $—, respectively	1	0	1	0
Foreign currency translation	0	2	(1)	2
Other comprehensive income	3	5	7	13
Comprehensive income	338	268	929	845
Less: Comprehensive income (loss) attributable to noncontrolling interests	1	(7)	(7)	(15)
Comprehensive Income Attributable to DTE Energy Company/DTE Electric Company	337	275	936	860
DTE Electric
Net Income	305	219	608	463
Other comprehensive income (loss), net of tax:
Other comprehensive income	0	0	0	0
Comprehensive Income Attributable to DTE Energy Company/DTE Electric Company	$ 305	$ 219	$ 608	$ 463