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Segment and Related Information
 6 Months Ended
Jun. 30, 2021
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 2.2 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.
Gas Storage and Pipelines is primarily engaged in services related to the gathering, transportation, and storage of natural gas.
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 reduced emissions fuel, and sell electricity and pipeline-quality gas 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 holds certain investments, including funds supporting regional development and economic growth.
The segment information included herein includes the results of DT Midstream, which is comprised of the Gas Storage and Pipelines segment and also certain DTE Energy holding company activity within the Corporate and Other segment. DTE Energy completed the separation of DT Midstream on July 1, 2021 and will have no further activity related to DT Midstream. Beginning in the third quarter 2021, historical results of the Gas Storage and Pipelines segment and DT Midstream activity within the Corporate and Other segment will be presented as discontinued operations. Refer to Note 4 to the Consolidated Financial Statements, “Dispositions and Impairments,” for additional information.
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.
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 June 30,Six Months Ended June 30,
2021202020212020
(In millions)
Electric$15 $15 $31 $30 
Gas3 4 7 8 
Gas Storage and Pipelines9 5 14 9 
Power and Industrial Projects176 80 338 174 
Energy Trading13 8 26 14 
Corporate and Other— — 1 1 
$216 $112 $417 $236 
Financial data of DTE Energy's business segments follows:
Three Months Ended June 30,Six Months Ended June 30,
2021202020212020
(In millions)
Operating Revenues — Utility operations
Electric$1,408 $1,309 $2,768 $2,521 
Gas265 251 877 791 
Operating Revenues — Non-utility operations
Electric3 3 7 7 
Gas Storage and Pipelines208 172 405 342 
Power and Industrial Projects394 219 760 526 
Energy Trading1,167 740 2,606 1,653 
Corporate and Other— 1 1 1 
Reconciliation and Eliminations(216)(112)(417)(236)
Total$3,229 $2,583 $7,007 $5,605 
Three Months Ended June 30,Six Months Ended June 30,
2021202020212020
(In millions)
Net Income (Loss) Attributable to DTE Energy by Segment:
Electric$238 $183 $446 $277 
Gas7 1 176 122 
Gas Storage and Pipelines64 70 143 142 
Power and Industrial Projects14 25 42 55 
Energy Trading(66)(1)(121)33 
Corporate and Other(78)(1)(110)(12)
Net Income Attributable to DTE Energy Company$179 $277 $576 $617