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CONSOLIDATED BALANCE SHEETS (UNAUDITED) - USD ($)
$ in Millions
Dec. 31, 2019
Sep. 30, 2019
Current assets    
Cash and cash equivalents $ 304 $ 299
Accounts receivable, net 1,427 1,739
Inventories, net 1,052 999
Regulatory assets 159 156
Other current assets 109 85
Total current assets 3,051 3,278
Property, plant, and equipment    
Completed plant 63,247 62,944
Less accumulated depreciation (31,895) (31,384)
Net completed plant 31,352 31,560
Construction in progress 1,972 1,893
Nuclear fuel 1,582 1,534
Capital leases 143 146
Total property, plant, and equipment, net 35,049 35,133
Investment funds 3,163 2,968
Regulatory and other long-term assets    
Regulatory assets 8,410 8,763
Operating Lease, Right-of-Use Asset 192 0
Other long-term assets 334 325
Total regulatory and other long-term assets 8,936 9,088
Total assets 50,199 50,467
Current liabilities    
Accounts payable and accrued liabilities 1,668 1,812
Accrued interest 303 296
Current portion of leaseback obligations 40 40
Regulatory liabilities 137 150
Short-term debt, net 895 922
Current maturities of power bonds 1,029 1,030
Current maturities of long-term debt of variable interest entities 39 39
Current maturities of notes payable 22 23
Total current liabilities 4,133 4,312
Other liabilities    
Post-retirement and post-employment benefit obligations 6,062 6,181
Asset retirement obligations 5,588 5,453
Operating Lease, Liability, Noncurrent 130  
Operating Lease, Liability, Current 72 0
Other long-term liabilities 2,201 2,490
Leaseback obligations 223 223
Regulatory liabilities 1  
Total other liabilities 14,204 14,347
Long-term debt, net    
Long-term power bonds, net 18,941 19,094
Long-term debt of variable interest entities, net 1,089 1,089
Long-term notes payable 1  
Total long-term debt, net 20,030 20,183
Total liabilities 38,367 38,842
Proprietary capital    
Power program appropriation investment 258 258
Power program retained earnings 11,015 10,823
Total power program proprietary capital 11,273 11,081
Nonpower programs appropriation investment, net 554 556
Accumulated other comprehensive income (loss) 5 (12)
Total proprietary capital 11,832 11,625
Total liabilities and proprietary capital $ 50,199 $ 50,467