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CONSOLIDATED BALANCE SHEETS - USD ($)
$ in Millions
Sep. 30, 2023
Sep. 30, 2022
Current assets    
Cash and Cash Equivalents, at Carrying Value $ 501 $ 500
Accounts receivable, net 1,745 2,007
Inventories, net 1,108 1,072
Regulatory assets 178 138
Other current assets 134 257
Total current assets 3,666 3,974
Property, plant, and equipment    
Completed plant 68,199 66,442
Less accumulated depreciation (35,871) (34,239)
Net completed plant 32,328 32,203
Construction in progress 3,238 2,535
Nuclear fuel 1,344 1,492
Finance Lease, Right-of-Use-Asset, after Accumulated Amortization 572 630
Total property, plant, and equipment, net 37,482 36,860
Long-term Investments 4,123 3,671
Regulatory and other long-term assets    
Regulatory assets 5,566 6,134
Operating Lease, Right-of-Use Asset 177 155
Other long-term assets 330 394
Total regulatory and other long-term assets 6,073 6,683
Total assets 51,344 51,188
Current liabilities    
Accounts payable and accrued liabilities 2,618 2,466
Accrued interest 272 273
Asset Retirement Obligation, Current 272 275
Regulatory liabilities 222 391
Short-term debt, net of discounts 432 1,172
Total Current maturities of power bonds issued at par 1,022 29
Current maturities of long-term debt of variable interest entities issued at par 35 39
Total current liabilities 4,873 4,645
Other liabilities    
Post-retirement and post-employment benefit obligations 2,527 3,072
Asset retirement obligations 7,217 6,887
Other long-term liabilities 1,211 1,485
Non-current regulatory liabilities 107 172
Total other liabilities 11,638 12,244
Long-term debt, net    
Long-term power bonds, net 17,844 17,826
Long-term debt of variable interest entities, net 933 968
Total long-term debt, net 18,777 18,794
Total liabilities 35,288 35,683
Proprietary capital    
Power program appropriation investment 258 258
Power program retained earnings 15,302 14,800
Total power program proprietary capital 15,560 15,058
Nonpower programs appropriation investment, net 525 533
Accumulated other comprehensive income (loss) (29) (86)
Total proprietary capital 16,056 15,505
Total liabilities and proprietary capital 51,344 51,188
Finance Lease, Liability, Noncurrent $ 576 $ 628