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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

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