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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Cash Flows from Operating Activities |  |  |
Net Income/(Loss) | $ 4,441 | $ 268 | $ (2,337)
Income/(loss) from discontinued operations, net of income tax | 321 | (192) | (992)
Income/(loss) from continuing operations | 4,120 | 460 | (1,345)
Adjustments to reconcile net income/(loss) to net cash provided by operating activities: |  |  |
Distributions and equity in earnings of unconsolidated affiliates | 14 | 46 | 102
Depreciation and amortization | 373 | 421 | 596
Accretion of asset retirement obligations | 51 | 38 | 44
Provision for bad debts | 95 | 85 | 68
Amortization of nuclear fuel | 52 | 48 | 51
Amortization of financing costs and debt discount/premiums | 26 | 29 | 29
Loss on debt extinguishment, net | 51 | 44 | 49
Amortization of emission allowances and out-of-market contracts | 38 | 45 | 54
Amortization of unearned equity compensation | 20 | 25 | 35
Net gain on sale of assets and disposal of assets | (23) | (49) | (9)
Impairment losses | 113 | 114 | 1,614
Changes in derivative instruments | 34 | 37 | (170)
Changes in deferred income taxes and liability for uncertain tax benefits | (3,353) | 5 | 13
Changes in collateral deposits in support of risk management activities | 105 | (105) | (80)
Changes in nuclear decommissioning trust liability | 37 | 60 | 11
GenOn settlement, net of insurance proceeds | 0 | (63) | 0
Net loss on deconsolidation of Agua Caliente and Ivanpah projects | 0 | 13 | 0
Cash provided/(used) by changes in other working capital, net of acquisition and disposition effects: |  |  |
Accounts receivable - trade | 5 | (83) | (83)
Inventory | 22 | 31 | 143
Prepayments and other current assets | 29 | (41) | (187)
Accounts payable | (177) | 113 | 44
Accrued expenses and other current liabilities | (41) | (166) | (88)
Other assets and liabilities | (186) | (104) | (35)
Cash provided by continuing operations | 1,405 | 1,003 | 856
Cash provided by discontinued operations | 8 | 374 | 754
Net Cash Provided by Operating Activities | 1,413 | 1,377 | 1,610
Cash Flows from Investing Activities |  |  |
Payments for acquisitions of businesses | (355) | (243) | (14)
Capital expenditures | (228) | (388) | (254)
Net proceeds from sale of emission allowances | 11 | 19 | 66
Investments in nuclear decommissioning trust fund securities | (416) | (572) | (512)
Proceeds from sales of nuclear decommissioning trust fund securities | 381 | 513 | 501
Proceeds from sale of assets, net of cash disposed and sale of discontinued operations, net of fees | 1,294 | 1,564 | 430
Deconsolidations of Agua Caliente and Ivanpah projects | 0 | (268) | 0
Net contributions to investments in unconsolidated affiliates | (91) | (39) | (57)
Net (contributions to)/distributions from discontinued operations | (44) | (60) | 150
Other | 6 | (6) | 30
Cash provided by continuing operations | 558 | 520 | 340
Cash used by discontinued operations | (2) | (725) | (979)
Net Cash Provided/(Used) by Investing Activities | 556 | (205) | (639)
Cash Flows from Financing Activities |  |  |
Payments of dividends to common stockholders | (32) | (37) | (38)
Payments for share repurchase activity | (1,440) | (1,250) | 0
Payments for debt extinguishment costs | (26) | (32) | (42)
Net distributions to noncontrolling interest from subsidiaries | (2) | (16) | (30)
Proceeds/(payments) from issuance of common stock | 3 | 21 | (2)
Proceeds from issuance of short and long-term debt | 1,916 | 1,100 | 1,178
Payments of debt issuance costs | (35) | (19) | (18)
Payments for short and long-term debt | (2,571) | (1,734) | (1,884)
Receivable from affiliate | 0 | (26) | (125)
Other | (4) | (4) | (8)
Cash used by continuing operations | (2,191) | (1,997) | (969)
Cash provided/(used) by discontinued operations | 43 | 471 | (169)
Net Cash (Used)/Provided by Financing Activities | (2,148) | (1,526) | (1,138)
Effect of exchange rate changes on cash and cash equivalents | 0 | 1 | (1)
Change in Cash from discontinued operations | 49 | 120 | (394)
Net (Decrease)/Increase in Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash | (228) | (473) | 226
Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at Beginning of Period | 613 | 1,086 | 860
Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at End of Period | $ 385 | $ 613 | $ 1,086

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- Definition The sum of the net change during the reporting period of accrued expenses and other current liabilities. Accrued expenses is the net change during the reporting period in the aggregate amount of expenses incurred but not yet paid. Other current liabilities is the net change during the reporting period in other expenses incurred but not yet paid. + References No definition available. + Details
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