v3.26.3
Consolidated Statements of Operations (Unaudited) - USD ($)
shares in Millions, $ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Income Statement [Abstract]        
Operating revenues $ 1,510 $ 1,451 $ 4,072 $ 3,869
Operating expenses:        
Operation and maintenance 531 523 1,505 1,471
Depreciation and amortization 245 226 722 663
General taxes 94 87 272 260
Other (1) 1 (1) 1
Total operating expenses, net 869 837 2,498 2,395
Operating income 641 614 1,574 1,474
Other (expense) income:        
Interest expense (167) (158) (497) (453)
Interest income 3 23 18 67
Non-operating benefit costs, net 5 4 15 12
Other, net 17 11 53 40
Total other (expense) income (142) (120) (411) (334)
Income before income taxes 499 494 1,163 1,140
Provision for income taxes 112 115 265 267
Net income attributable to common shareholders $ 387 $ 379 $ 898 $ 873
Basic earnings per share:        
Net income attributable to common shareholders (in dollars per share) [1] $ 1.94 $ 1.94 $ 4.56 $ 4.47
Diluted earnings per share:        
Net income attributable to common shareholders (in dollars per share) [1] $ 1.94 $ 1.94 $ 4.56 $ 4.47
Weighted-average common shares outstanding:        
Basic (in shares) 199 195 197 195
Diluted (in shares) 199 195 197 195
[1] Amounts may not calculate due to rounding.