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CONSOLIDATED BALANCE SHEETS (UNAUDITED) - USD ($)
$ in Millions
Dec. 31, 2016
Sep. 30, 2016
Current assets    
Cash and cash equivalents $ 300 $ 300
Accounts receivable, net 1,451 1,747
Inventories, net 1,120 993
Regulatory assets 454 536
Other current assets 101 68
Total current assets 3,426 3,644
Property, plant, and equipment    
Completed plant 56,815 51,564
Less accumulated depreciation (27,634) (27,592)
Net completed plant 29,181 23,972
Construction in progress 3,278 8,458
Nuclear fuel 1,409 1,450
Capital leases 160 163
Total property, plant, and equipment, net 34,028 34,043
Investment funds 2,293 2,257
Regulatory and other long-term assets    
Regulatory assets 9,728 10,164
Other long-term assets 389 386
Total regulatory and other long-term assets 10,117 10,550
Total assets 49,864 50,494
Current liabilities    
Accounts payable and accrued liabilities 1,785 2,163
Accrued interest 339 363
Current portion of leaseback obligations 58 58
Current portion of energy prepayment obligations 100 100
Regulatory liabilities 173 154
Short-term debt, net 2,027 1,407
Current maturities of power bonds 1,681 1,555
Current maturities of long-term debt of variable interest entities 35 35
Current maturities of notes payable 27 27
Total current liabilities 6,225 5,862
Other liabilities    
Post-retirement and post-employment benefit obligations 6,827 6,929
Asset retirement obligations 3,881 3,840
Other long-term liabilities 2,424 2,776
Leaseback obligations 408 409
Energy prepayment obligations 85 110
Total other liabilities 13,625 14,064
Long-term debt, net    
Long-term power bonds, net 20,215 20,901
Long-term debt of variable interest entities, net 1,200 1,199
Long-term notes payable 48 48
Total long-term debt, net 21,463 22,148
Total liabilities 41,313 42,074
Proprietary capital    
Power program appropriation investment 258 258
Power program retained earnings 7,697 7,594
Total power program proprietary capital 7,955 7,852
Nonpower programs appropriation investment, net 578 580
Accumulated other comprehensive income (loss) 18 (12)
Total proprietary capital 8,551 8,420
Total liabilities and proprietary capital $ 49,864 $ 50,494