Segment and Related Information (Tables)

9 Months Ended

Sep. 30, 2021

Segment Reporting [Abstract]

Financial Data of Business Segments

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, natural gas sales, and renewable natural gas sales in the following segments:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2021		2020		2021		2020
	(In millions)
Electric	$	17	$	16	$	48	$	46
Gas	3		4		10		12
DTE Vantage	125		134		463		308
Energy Trading	9		9		35		23
Corporate and Other	1		1		2		2
	$	155	$	164	$	558	$	391

Financial data of DTE Energy's business segments follows:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2021		2020		2021		2020
	(In millions)
Operating Revenues — Utility operations
Electric	$	1,700	$	1,690	$	4,468	$	4,211
Gas	193		173		1,070		964
Operating Revenues — Non-utility operations
Electric	2		3		9		10
DTE Vantage	372		324		1,132		850
Energy Trading	1,602		1,061		4,208		2,714
Corporate and Other	1		1		2		2
Reconciliation and Eliminations(a)	(155)		(172)		(572)		(408)
Total	$	3,715	$	3,080	$	10,317	$	8,343

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(a)Includes $14 million for the nine months ended September 30, 2021 and $8 million and $17 million for the three and nine months ended September 30, 2020, respectively, for eliminations related to DTE Energy's prior Gas Storage and Pipelines segment that remain in continuing operations. Eliminations for these revenues are offset by related cost eliminations and have no impact on DTE Energy net income.

	Three Months Ended September 30,				Nine Months Ended September 30,
	2021		2020		2021		2020
	(In millions)
Net Income (Loss) Attributable to DTE Energy by Segment:
Electric	$	342	$	398	$	788	$	675
Gas	(30)		(20)		146		102
DTE Vantage	73		47		115		102
Energy Trading	(52)		(28)		(173)		5
Corporate and Other	(275)		(25)		(381)		(40)
Discontinued Operations	(33)		104		106		249
Net Income Attributable to DTE Energy Company	$	25	$	476	$	601	$	1,093