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CONSOLIDATED BALANCE SHEETS (UNAUDITED) - USD ($)
$ in Millions
Jun. 30, 2023
Sep. 30, 2022
Current assets    
Cash and cash equivalents $ 500 $ 500
Accounts receivable, net 1,603 2,007
Inventories, net 1,185 1,072
Regulatory assets 236 138
Other current assets 161 257
Total current assets 3,685 3,974
Property, plant, and equipment    
Completed plant 67,229 66,442
Less accumulated depreciation (35,223) (34,239)
Net completed plant 32,006 32,203
Construction in progress 3,161 2,535
Nuclear fuel 1,410 1,492
Finance lease, asset 584 630
Total property, plant, and equipment, net 37,161 36,860
Investment funds 4,202 3,671
Regulatory and other long-term assets    
Regulatory assets 5,666 6,134
Operating Lease, Right-of-Use Asset 165 155
Other long-term assets 334 394
Total regulatory and other long-term assets 6,165 6,683
Total assets 51,213 51,188
Current liabilities    
Accounts payable and accrued liabilities 2,431 2,466
Accrued interest 252 273
Asset Retirement Obligation, Current 262 275
Regulatory liabilities 224 391
Short-term debt, net 722 1,172
Current maturities of power bonds 22 29
Current maturities of long-term debt of variable interest entities 35 39
Total current liabilities 3,948 4,645
Other liabilities    
Post-retirement and post-employment benefit obligations 2,909 3,072
Asset retirement obligations 6,860 6,887
Finance Lease, Liability, Noncurrent 594 628
Other long-term liabilities 1,425 1,485
Regulatory liabilities 59 172
Total other liabilities 11,847 12,244
Long-term debt, net    
Long-term power bonds, net 18,861 17,826
Long-term debt of variable interest entities, net 951 968
Total long-term debt, net 19,812 18,794
Total liabilities 35,607 35,683
Proprietary capital    
Power program appropriation investment 258 258
Power program retained earnings 14,893 14,800
Total power program proprietary capital 15,151 15,058
Nonpower programs appropriation investment, net 527 533
Accumulated other comprehensive income (loss) (72) (86)
Total proprietary capital 15,606 15,505
Total liabilities and proprietary capital $ 51,213 $ 51,188