Segment and Related Information

3 Months Ended

Mar. 31, 2015

Segment Reporting [Abstract]

Segment and Related Information

SEGMENT AND RELATED INFORMATION

DTE Energy sets strategic goals, allocates resources and evaluates performance based on the following structure:

Electric segment consists principally of DTE Electric, which is engaged in the generation, purchase, distribution and sale of electricity to approximately 2.1 million residential, commercial and industrial customers in southeastern Michigan.

Gas segment consists principally of DTE Gas, which is engaged in the purchase, storage, transportation, distribution and sale of natural gas to approximately 1.2 million residential, commercial and industrial customers throughout Michigan and the sale of storage and transportation capacity.

Gas Storage and Pipelines consists of natural gas pipeline, gathering and storage businesses.

Power and Industrial Projects is comprised primarily of projects that deliver energy and utility-type products and services to industrial, commercial and institutional customers; produce REF and sell electricity from renewable energy projects.

Energy Trading consists of energy marketing and trading operations.

Corporate and Other includes various holding company activities, holds certain non-utility debt and energy-related investments.

The federal income tax provisions or benefits of DTE Energy’s subsidiaries are determined on an individual company basis and recognize the tax benefit of tax credits and net operating losses if applicable. The state and local income tax provisions of the utility subsidiaries are determined on an individual company basis and recognize the tax benefit of various tax credits and net operating losses, if applicable. The subsidiaries record federal, state and local income taxes payable to or receivable from DTE Energy based on the federal, state and local tax provisions of each company.

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,
	2015		2014
	(In millions)
Inter-segment Revenues
Electric	$	9	$	7
Gas	1		2
Gas Storage and Pipelines	1		1
Power and Industrial Projects	180		206
Energy Trading	9		9
Corporate and Other	1		2
	$	201	$	227

Financial data of the DTE Energy business segments follows:

	Three Months Ended March 31,
	2015			2014
	(In millions)
Operating Revenues
Electric	$	1,203		$	1,412
Gas	647			804
Gas Storage and Pipelines	57			52
Power and Industrial Projects	567			575
Energy Trading	711			1,314
Corporate and Other	—			—
Reconciliation and Eliminations	(201		)	(227		)
Total	$	2,984		$	3,930

Net Income (Loss) Attributable to DTE Energy by Segment:
Electric	$	136		$	136
Gas	111			129
Gas Storage and Pipelines	27			21
Power and Industrial Projects	33			15
Energy Trading	(9		)	42
Corporate and Other	(25		)	(17		)
Net Income Attributable to DTE Energy Company	$	273		$	326