Revenue (Tables)

9 Months Ended

Sep. 30, 2018

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue

The following is a summary of revenues disaggregated by segment for DTE Energy:

	Three Months Ended September 30,		Nine Months Ended September 30,
	2018		2018
	(In millions)
Electric(a)
Residential	$	773	$	1,943
Commercial	495		1,370
Industrial	173		527
Other	80		162
Total Electric operating revenues(b)	$	1,521	$	4,002
Gas
Gas sales	$	89	$	726
End User Transportation	34		168
Intermediate Transportation	9		38
Other	32		37
Total Gas operating revenues(c)	$	164	$	969
Other segment operating revenues
Gas Storage and Pipelines	$	122	$	363
Power and Industrial Projects(d)	$	612	$	1,717
Energy Trading(e)	$	1,332	$	3,994

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(a) Revenues under the Electric segment generally represent those of DTE Electric.

(b) Includes $6 million and $15 million of other revenues which are outside the scope of Topic 606 for the three and nine months endedSeptember 30, 2018, respectively.

(c) Includes a reduction of $4 million under Alternative Revenue Programs for the nine months ended September 30, 2018, and $2 million and $6 million of other revenues, which are both outside the scope of Topic 606 for the three and nine months endedSeptember 30, 2018, respectively.

(d) Includes revenues outside the scope of Topic 606 primarily related to $37 million and $93 million of contracts accounted for as leases for the three and nine months endedSeptember 30, 2018, respectively. During the third quarter 2018, DTE Energy revised the classification of certain amounts totaling $788 million previously disclosed as lease revenues for the six months ended June 30, 2018 to be within the scope of Topic 606. This change had no impact to the Consolidated Statements of Operations, Financial Position, or Cash Flows.

(e) Includes revenues outside the scope of Topic 606 primarily related to $1.1 billion and $3.2 billion of derivatives for the three and nine months endedSeptember 30, 2018, respectively.

Summary of Deferred Revenue Activity

The following is a summary of deferred revenue activity:

	DTE Energy
	(In millions)
Beginning Balance, January 1, 2018	$	56
Increases due to cash received or receivable, excluding amounts recognized as revenue during the period	37
Revenue recognized that was included in the deferred revenue balance at the beginning of the period	(30		)
Ending Balance, September 30, 2018	$	63

Deferred Revenue Amounts Expected to be Recognized as Revenue in Future Periods

The Registrants expect to recognize revenue for the following amounts related to fixed consideration associated with remaining performance obligations in each of the future periods noted:

	DTE Energy		DTE Electric
	(In millions)
2018	$	50	$	4
2019	245		8
2020	201		—
2021	157		—
2022	120		—
2023 and thereafter	411		—
Total	$	1,184	$	12

The following table represents deferred revenue amounts for DTE Energy that are expected to be recognized as revenue in future periods:

	DTE Energy
	(In millions)
2018	$	8
2019	27
2020	1
2021	5
2022	7
2023 and thereafter	15
	$	63