Segment and Related Information (Tables)

9 Months Ended

Sep. 30, 2020

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 September 30,				Nine Months Ended September 30,
	2020		2019		2020		2019
	(In millions)
Electric	$	16	$	16	$	46	$	43
Gas	4		3		12		8
Gas Storage and Pipelines	8		11		17		17
Power and Industrial Projects	134		160		308		462
Energy Trading	9		4		23		16
Corporate and Other	1		1		2		2
	$	172	$	195	$	408	$	548

Financial data of DTE Energy's business segments follows:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2019		2020		2019
	(In millions)
Operating Revenues — Utility operations
Electric	$	1,690	$	1,520	$	4,211	$	3,945
Gas	173		155		964		1,043
Operating Revenues — Non-utility operations
Electric	3		—		10		—
Gas Storage and Pipelines	204		126		546		363
Power and Industrial Projects	324		406		850		1,196
Energy Trading	1,061		1,105		2,714		3,519
Corporate and Other	1		2		2		3
Reconciliation and Eliminations	(172)		(195)		(408)		(548)
Total	$	3,284	$	3,119	$	8,889	$	9,521

	Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2019		2020		2019
	(In millions)
Net Income (Loss) Attributable to DTE Energy by Segment:
Electric	$	398	$	307	$	675	$	587
Gas	(20)		(38)		102		121
Gas Storage and Pipelines	104		60		246		158
Power and Industrial Projects	47		49		102		104
Energy Trading	(28)		(14)		5		12
Corporate and Other	(25)		(45)		(37)		(80)
Net Income Attributable to DTE Energy Company	$	476	$	319	$	1,093	$	902