v3.26.1
Consolidated Statements of Operations (Unaudited) - SPPC - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Operating revenue:    
Revenues $ 6,672 $ 6,366
Operating expenses:    
Cost of sales 1,670 1,531
Total operating expenses 5,214 4,983
Operating income 1,458 1,383
Other income (expense):    
Interest expense (746) (686)
Allowance for equity funds 80 66
Interest and dividend income 54 62
Other, net (8) (15)
Total other income (expense) (580) (430)
Income before income tax expense (benefit) and equity income (loss) 878 953
Income tax expense (benefit) (430) (399)
Net income (loss) attributable to parent 1,114 1,187
SPPC    
Operating revenue:    
Revenues 272 285
Operating expenses:    
Cost of sales 131 143
Operations and maintenance 71 60
Depreciation and amortization 45 40
Property and other taxes 7 6
Total operating expenses 254 249
Operating income 18 36
Other income (expense):    
Interest expense (31) (24)
Allowance for borrowed funds 8 3
Allowance for equity funds 25 10
Interest and dividend income 4 3
Other, net 4 2
Total other income (expense) 10 (6)
Income before income tax expense (benefit) and equity income (loss) 28 30
Income tax expense (benefit) 1 3
Net income (loss) attributable to parent 27 27
SPPC | Regulated electric    
Operating revenue:    
Revenues 235 236
Operating expenses:    
Cost of sales 113 115
SPPC | Regulated natural gas    
Operating revenue:    
Revenues 37 49
Operating expenses:    
Cost of sales $ 18 $ 28