v3.26.1
Revenue from Contracts with Customers - PAC (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Disaggregation of Revenue [Line Items]        
Operating revenue $ 6,686 $ 6,394 $ 13,358 $ 12,760
Regulated | Regulated retail electric        
Disaggregation of Revenue [Line Items]        
Total Customer Revenue 3,278 3,146 6,246 5,970
Regulated | Wholesale        
Disaggregation of Revenue [Line Items]        
Total Customer Revenue 111 116 334 262
Regulated | Regulated transmission and distribution        
Disaggregation of Revenue [Line Items]        
Total Customer Revenue 507 478 1,023 1,084
Regulated | Other customer revenue        
Disaggregation of Revenue [Line Items]        
Total Customer Revenue 40 36 86 63
PAC        
Disaggregation of Revenue [Line Items]        
Other revenue 10 15 34 48
Operating revenue 1,801 1,810 3,609 3,578
PAC | Regulated        
Disaggregation of Revenue [Line Items]        
Total Customer Revenue 1,791 1,795 3,575 3,530
PAC | Regulated | Regulated retail electric        
Disaggregation of Revenue [Line Items]        
Total Customer Revenue 1,683 1,711 3,369 3,358
PAC | Regulated | Wholesale        
Disaggregation of Revenue [Line Items]        
Total Customer Revenue 31 15 52 28
PAC | Regulated | Regulated transmission and distribution        
Disaggregation of Revenue [Line Items]        
Total Customer Revenue 34 34 69 82
PAC | Regulated | Other customer revenue        
Disaggregation of Revenue [Line Items]        
Total Customer Revenue 43 35 85 62
PAC | Regulated | Residential | Regulated retail electric        
Disaggregation of Revenue [Line Items]        
Total Customer Revenue 573 600 1,240 1,272
PAC | Regulated | Commercial | Regulated retail electric        
Disaggregation of Revenue [Line Items]        
Total Customer Revenue 629 603 1,226 1,167
PAC | Regulated | Industrial | Regulated retail electric        
Disaggregation of Revenue [Line Items]        
Total Customer Revenue 350 370 697 714
PAC | Regulated | Other retail | Regulated retail electric        
Disaggregation of Revenue [Line Items]        
Total Customer Revenue $ 131 $ 138 $ 206 $ 205