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CONSOLIDATED BALANCE SHEETS - USD ($)
$ in Millions
Dec. 31, 2019
Dec. 31, 2018
Current Assets    
Cash and cash equivalents $ 345 $ 563
Funds deposited by counterparties 32 33
Restricted cash 8 17
Accounts receivable, net 1,025 1,024
Inventory 383 412
Derivative instruments 860 764
Cash collateral posted in support of energy risk management activities 190 287
Prepayments and other current assets 245 302
Current assets - held-for-sale 0 1
Current assets - discontinued operations 0 197
Total current assets 3,088 3,600
Property, plant and equipment, net 2,593 3,048
Other Assets    
Equity investments in affiliates 388 412
Operating lease right-of-use assets, net 464  
Goodwill 579 573
Intangible assets, net 789 591
Nuclear decommissioning trust fund 794 663
Derivative instruments 310 317
Deferred income taxes 3,286 46
Other non-current assets 240 289
Non-current assets - held-for-sale 0 77
Non-current assets - discontinued operations 0 1,012
Total other assets 6,850 3,980
Total Assets 12,531 10,628
Current Liabilities    
Current portion of long-term debt and finance leases 88 72
Current portion of operating lease liabilities 73  
Accounts payable  722 863
Derivative instruments 781 673
Cash collateral received in support of energy risk management activities 32 33
Accrued expenses and other current liabilities 663 680
Current liabilities - held for sale 0 5
Current liabilities - discontinued operations 0 72
Total current liabilities 2,359 2,398
Other Liabilities    
Long-term debt and finance leases 5,803 6,449
Non-current operating lease liabilities 483  
Nuclear decommissioning reserve 298 282
Nuclear decommissioning trust liability 487 371
Derivative instruments 322 304
Deferred income taxes 17 65
Other non-current liabilities 1,084 1,274
Non-current liabilities - held-for-sale   65
Non-current liabilities - held-for-sale 0 65
Non-current liabilities - discontinued operations 0 635
Total other liabilities 8,494 9,445
Total Liabilities 10,853 11,843
Redeemable noncontrolling interest in subsidiaries 20 19
Commitments and Contingencies
Stockholders' Equity    
Common stock; $0.01 par value; 500,000,000 shares authorized; 421,890,790 and 420,288,886 shares issued; and 248,996,189 and 283,650,039 shares outstanding at December 31, 2019 and 2018 4 4
Additional paid-in capital 8,501 8,510
Accumulated deficit (1,616) (6,022)
Treasury stock, at cost; 172,894,601 and 136,638,847 shares at December 31, 2019 and 2018 (5,039) (3,632)
Accumulated other comprehensive loss (192) (94)
Total Stockholders' Equity 1,658 (1,234)
Total Liabilities and Stockholders' Equity $ 12,531 $ 10,628