XML 36 R2.htm IDEA: XBRL DOCUMENT v3.25.1
CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Mar. 31, 2025
Mar. 31, 2024
Operating expenses        
Fuel $ 580 $ 641 $ 1,085 $ 1,137
Purchased power 572 372 966 731
Utilities Operating Expense, Maintenance, Operations, and Other Costs and Expenses 944 889 1,849 1,756
Depreciation and amortization 562 530 1,119 1,051
Tax equivalents 158 141 304 274
Operating Expenses 2,816 2,573 5,323 4,949
Operating income 716 581 1,129 970
Other income (expense), net 12 18 29 41
Defined Benefit Plan, Other Cost (Credit) 27 26 52 49
Interest expense        
Interest expense 293 266 573 528
Net income (loss) 408 307 533 434
Regulated Operating Revenue 3,476 3,093 6,352 5,824
Unregulated Operating Revenue 56 61 100 95
Regulated and Unregulated Operating Revenue $ 3,532 $ 3,154 $ 6,452 $ 5,919