Segment and Related Information (Tables)

3 Months Ended

Mar. 31, 2018

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,
	2018		2017
	(In millions)
Electric	$	13	$	12
Gas	2		3
Gas Storage and Pipelines	8		7
Power and Industrial Projects	155		168
Energy Trading	7		11
Corporate and Other	1		1
	$	186	$	202

Financial data of DTE Energy's business segments follows:

	Three Months Ended March 31,
	2018			2017
	(In millions)
Operating Revenues — Utility operations
Electric	$	1,205		$	1,175
Gas	550			557
Operating Revenues — Non-utility operations
Gas Storage and Pipelines	119			105
Power and Industrial Projects	567			548
Energy Trading	1,498			1,052
Corporate and Other	—			1
Reconciliation and Eliminations	(186		)	(202		)
Total	$	3,753		$	3,236

Net Income (Loss) Attributable to DTE Energy by Segment:
Electric	$	140		$	106
Gas	104			107
Gas Storage and Pipelines	62			45
Power and Industrial Projects	45			30
Energy Trading	31			96
Corporate and Other	(21		)	16
Net Income Attributable to DTE Energy Company	$	361		$	400