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Segment and Related Information
 6 Months Ended
Jun. 30, 2020
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 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 June 30,Six Months Ended June 30,
2020201920202019
(In millions)
Electric$15  $13  $30  $27  
Gas4  3  8  5  
Gas Storage and Pipelines5  3  9  6  
Power and Industrial Projects80  157  174  302  
Energy Trading8  5  14  12  
Corporate and Other—  —  1  1  
$112  $181  $236  $353  
Financial data of DTE Energy's business segments follows:
Three Months Ended June 30,Six Months Ended June 30,
2020201920202019
(In millions)
Operating Revenues — Utility operations
Electric$1,309  $1,190  $2,521  $2,425  
Gas251  243  791  888  
Operating Revenues — Non-utility operations
Electric3  —  7  —  
Gas Storage and Pipelines172  121  342  237  
Power and Industrial Projects219  402  526  790  
Energy Trading740  1,113  1,653  2,414  
Corporate and Other1  —  1  1  
Reconciliation and Eliminations(112) (181) (236) (353) 
Total$2,583  $2,888  $5,605  $6,402  
Three Months Ended June 30,Six Months Ended June 30,
2020201920202019
(In millions)
Net Income (Loss) Attributable to DTE Energy by Segment:
Electric$183  $133  $277  $280  
Gas1  8  122  159  
Gas Storage and Pipelines70  50  142  98  
Power and Industrial Projects25  29  55  55  
Energy Trading(1) (6) 33  26  
Corporate and Other(1) (32) (12) (35) 
Net Income Attributable to DTE Energy Company$277  $182  $617  $583