Segment and Related Information

3 Months Ended

Mar. 31, 2023

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 2.3 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 1.3 million residential, commercial, and industrial customers throughout Michigan and the sale of storage and transportation capacity.

DTE Vantage is comprised primarily of renewable energy projects that sell electricity and pipeline-quality gas and projects that deliver custom energy solutions to industrial, commercial, and institutional customers.

Energy Trading consists of energy marketing and trading operations.

Corporate and Other includes various holding company activities, holds certain non-utility debt, and holds certain investments, including funds supporting regional development and economic growth.

Inter-segment billing for goods and services exchanged between segments is based upon tariffed or market-based prices of the provider. Such billing primarily consists of power sales, sale and transportation of natural gas, and renewable natural gas sales in the segments below, as well as charges from Electric to other segments for use of the shared capital assets of DTE Electric.

	Three Months Ended March 31,
	2023		2022
	(In millions)
Electric	$	17	$	16
Gas	5		3
DTE Vantage	10		25
Energy Trading	27		17
Corporate and Other	—		—
	$	59	$	61

All inter-segment transactions and balances are eliminated in consolidation for DTE Energy. Centrally incurred costs such as labor and overheads are assigned directly to DTE Energy's business segments or allocated based on various cost drivers, depending on the nature of service provided.

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 also 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.

Financial data of DTE Energy's business segments follows:

	Three Months Ended March 31,
	2023		2022
	(In millions)
Operating Revenues — Utility operations
Electric	$	1,375	$	1,486
Gas	707		766
Operating Revenues — Non-utility operations
Electric	4		4
DTE Vantage	184		179
Energy Trading	1,568		2,203
Corporate and Other	—		—
Reconciliation and Eliminations	(59)		(61)
Total	$	3,779	$	4,577

	Three Months Ended March 31,
	2023		2022
	(In millions)
Net Income (Loss) Attributable to DTE Energy by Segment
Electric	$	101	$	201
Gas	171		196
DTE Vantage	27		14
Energy Trading	138		(9)
Corporate and Other	8		(8)
Net Income Attributable to DTE Energy Company	$	445	$	394