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CONSOLIDATED BALANCE SHEETS (UNAUDITED) - USD ($)
$ in Millions
Dec. 31, 2022
Sep. 30, 2022
Current assets    
Cash and cash equivalents $ 500 $ 500
Accounts receivable, net 1,749 2,007
Inventories, net 1,207 1,072
Regulatory assets 320 138
Other current assets 221 257
Total current assets 3,997 3,974
Property, plant, and equipment    
Completed plant 66,728 66,442
Less accumulated depreciation (34,517) (34,239)
Net completed plant 32,211 32,203
Construction in progress 2,648 2,535
Nuclear fuel 1,520 1,492
Finance lease, asset 615 630
Total property, plant, and equipment, net 36,994 36,860
Investment funds 3,913 3,671
Regulatory and other long-term assets    
Regulatory assets 5,909 6,134
Operating Lease, Right-of-Use Asset 144 155
Other long-term assets 353 394
Total regulatory and other long-term assets 6,406 6,683
Total assets 51,310 51,188
Current liabilities    
Accounts payable and accrued liabilities 2,362 2,466
Accrued interest 255 273
Asset Retirement Obligation, Current 287 275
Regulatory liabilities 277 391
Short-term debt, net 1,618 1,172
Current maturities of power bonds 29 29
Current maturities of long-term debt of variable interest entities 39 39
Total current liabilities 4,867 4,645
Other liabilities    
Post-retirement and post-employment benefit obligations 2,998 3,072
Asset retirement obligations 6,868 6,887
Finance Lease, Liability, Noncurrent 619 628
Other long-term liabilities 1,374 1,485
Regulatory liabilities 109 172
Total other liabilities 11,968 12,244
Long-term debt, net    
Long-term power bonds, net 17,865 17,826
Long-term debt of variable interest entities, net 968 968
Total long-term debt, net 18,833 18,794
Total liabilities 35,668 35,683
Proprietary capital    
Power program appropriation investment 258 258
Power program retained earnings 14,902 14,800
Total power program proprietary capital 15,160 15,058
Nonpower programs appropriation investment, net 531 533
Accumulated other comprehensive income (loss) (49) (86)
Total proprietary capital 15,642 15,505
Total liabilities and proprietary capital $ 51,310 $ 51,188