Segment and Related Information (Tables)

3 Months Ended

Mar. 31, 2019

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, by Segment

Inter-segment billing for goods and services exchanged between segments is based upon tariffed or market-based prices of the provider and primarily consists of the sale of reduced emissions fuel, power sales, and natural gas sales in the following segments:

	Three Months Ended March 31,
	2019		2018
	(In millions)
Electric	$	14	$	13
Gas	2		2
Gas Storage and Pipelines	3		8
Power and Industrial Projects	145		155
Energy Trading	7		7
Corporate and Other	1		1
	$	172	$	186

Financial data of DTE Energy's business segments follows:

	Three Months Ended March 31,
	2019			2018
	(In millions)
Operating Revenues — Utility operations
Electric	$	1,235		$	1,205
Gas	645			550
Operating Revenues — Non-utility operations
Gas Storage and Pipelines	116			119
Power and Industrial Projects	388			567
Energy Trading	1,301			1,498
Corporate and Other	1			—
Reconciliation and Eliminations	(172		)	(186		)
Total	$	3,514		$	3,753

	Three Months Ended March 31,
	2019			2018
	(In millions)
Net Income (Loss) Attributable to DTE Energy by Segment:
Electric	$	147		$	140
Gas	151			104
Gas Storage and Pipelines	48			62
Power and Industrial Projects	26			45
Energy Trading	32			31
Corporate and Other	(3		)	(21		)
Net Income Attributable to DTE Energy Company	$	401		$	361