Segment and Related Information (Tables)

9 Months Ended

Sep. 30, 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 September 30,				Nine Months Ended September 30,
	2019		2018		2019		2018
	(In millions)
Electric	$	16	$	13	$	43	$	39
Gas	3		3		8		9
Gas Storage and Pipelines	11		7		17		29
Power and Industrial Projects	160		171		462		488
Energy Trading	4		6		16		18
Corporate and Other	1		1		2		2
	$	195	$	201	$	548	$	585

Financial data of DTE Energy's business segments follows:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2019			2018			2019			2018
	(In millions)
Operating Revenues — Utility operations
Electric	$	1,520		$	1,521		$	3,945		$	4,002
Gas	155			164			1,043			969
Operating Revenues — Non-utility operations
Gas Storage and Pipelines	126			122			363			363
Power and Industrial Projects	406			612			1,196			1,717
Energy Trading	1,105			1,332			3,519			3,994
Corporate and Other	2			—			3			2
Reconciliation and Eliminations	(195		)	(201		)	(548		)	(585		)
Total	$	3,119		$	3,550		$	9,521		$	10,462

	Three Months Ended September 30,						Nine Months Ended September 30,
	2019			2018			2019			2018
	(In millions)
Net Income (Loss) Attributable to DTE Energy by Segment:
Electric	$	307		$	305		$	587		$	608
Gas	(38		)	(30		)	121			88
Gas Storage and Pipelines	60			66			158			188
Power and Industrial Projects	49			58			104			146
Energy Trading	(14		)	(13		)	12			13
Corporate and Other	(45		)	(52		)	(80		)	(114		)
Net Income Attributable to DTE Energy Company	$	319		$	334		$	902		$	929