v3.26.1
REVENUE (Tables)
3 Months Ended
Mar. 31, 2026
Revenue from Contract with Customer [Abstract]  
Schedule of Disaggregation of Revenue The following table presents the disaggregation of TEP’s Operating Revenues on the Condensed Consolidated Statements of Income by type of service:
Three Months Ended March 31,
(in millions)20262025
Retail$241 $245 
Wholesale47 58 
Other Services25 23 
Revenues from Contracts with Customers313 326 
Alternative Revenues12 
Other21 28 
Total Operating Revenues$338 $366