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CONSOLIDATED BALANCE SHEETS - USD ($)
$ in Millions
Sep. 30, 2015
Sep. 30, 2014
Current assets    
Cash and cash equivalents $ 300 $ 500
Restricted cash and investments 15 19
Accounts receivable, net 1,600 1,676
Inventories, net 1,031 1,056
Regulatory assets 506 481
Other current assets 54 56
Total current assets 3,506 3,788
Property, plant, and equipment    
Completed plant 50,069 47,564
Less accumulated depreciation (26,318) (24,589)
Net completed plant 23,751 22,975
Construction in progress 7,147 5,951
Nuclear fuel 1,415 1,322
Capital leases 94 102
Total property, plant, and equipment, net 32,407 30,350
Investment funds 2,011 1,981
Regulatory and other long-term assets    
Regulatory assets 10,418 8,994
Other long-term assets 483 483
Total regulatory and other long-term assets 10,901 9,477
Total assets 48,825 45,596
Current liabilities    
Accounts payable and accrued liabilities 2,127 2,050
Accrued interest 366 380
Current portion of leaseback obligations 79 75
Current portion of energy prepayment obligations 100 100
Regulatory liabilities 164 184
Short-term debt, net 1,034 596
Current maturities of power bonds 32 1,032
Current maturities of long-term debt of variable interest entities 33 32
Total current liabilities 3,935 4,449
Other liabilities    
Post-retirement and post-employment benefit obligations 7,107 5,839
Asset retirement obligations 3,682 3,089
Other long-term liabilities 2,219 1,962
Leaseback obligations 537 616
Energy prepayment obligations 210 310
Regulatory liabilities 2 0
Total other liabilities 13,757 11,816
Long-term debt, net    
Long-term power bonds, net 22,684 21,948
Long-term debt of variable interest entities 1,246 1,279
Total long-term debt, net 23,930 23,227
Total liabilities $ 41,622 $ 39,492
Commitments and contingencies (Note 22)
Proprietary capital    
Power program appropriation investment $ 258 $ 258
Power program retained earnings 6,357 5,240
Total power program proprietary capital 6,615 5,498
Nonpower programs appropriation investment, net 590 601
Accumulated other comprehensive income (loss) (2) 5
Total proprietary capital 7,203 6,104
Total liabilities and proprietary capital $ 48,825 $ 45,596