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Condensed Consolidating Financial Information - Statements of Cash Flows (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2018 | Sep. 30, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 31, 2017 | Sep. 30, 2017 | Jun. 30, 2017 | Mar. 31, 2017 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Cash Flows from Operating Activities |  |  |  |  |  |  |  |  |  |  |
Net (Loss)/Income | $ (13) | $ (48) | $ 96 | $ 233 | $ (1,655) | $ 163 | $ (642) | $ (203) | $ 268 | $ (2,337) | $ (891)
(Loss)/income from discontinued operations, net of income tax | 80 | (336) | 69 | (5) | (265) | 0 | (702) | (25) | (192) | (992) | 65
Net Income/(Loss) from Continuing Operations | (93) | $ 288 | $ 27 | 238 | (1,390) | $ 163 | $ 60 | (178) | 460 | (1,345) | (956)
Adjustments to reconcile net income/(loss) to net cash provided by operating activities: |  |  |  |  |  |  |  |  |  |  |
Distributions and equity in earnings of unconsolidated affiliates |  |  |  |  |  |  |  |  | 46 | 102 | 67
Depreciation, amortization and accretion |  |  |  |  |  |  |  |  | 459 | 596 | 772
Provision for bad debts |  |  |  |  |  |  |  |  | 85 | 68 | 45
Amortization of nuclear fuel |  |  |  |  |  |  |  |  | 48 | 51 | 49
Amortization of financing costs and debt discount/premiums |  |  |  |  |  |  |  |  | 29 | 29 | 33
Adjustment for debt extinguishment |  |  |  |  |  |  |  |  | 44 | 49 | 142
Amortization of intangibles and out-of-market contracts |  |  |  |  |  |  |  |  | 45 | 54 | 68
Amortization of unearned equity compensation |  |  |  |  |  |  |  |  | 25 | 35 | 10
Net (gain)/loss on sale of assets and equity/cost method investments |  |  |  |  |  |  |  |  | (49) | (9) | 139
Impairment losses |  |  |  |  |  |  |  |  | 114 | 1,614 | 751
Changes in derivative instruments |  |  |  |  |  |  |  |  | 37 | (170) | 16
Changes in deferred income taxes and liability for uncertain tax benefits |  |  |  |  |  |  |  |  | 5 | 13 | (12)
Changes in collateral deposits in support of risk management activities |  |  |  |  |  |  |  |  | (105) | (80) | 396
Changes in nuclear decommissioning trust liability |  |  |  |  |  |  |  |  | 60 | 11 | 41
GenOn settlement, net of insurance proceeds |  |  |  |  |  |  |  |  | (63) | 0 | 0
Net loss on deconsolidation of Agua Caliente and Ivanpah projects |  |  |  |  |  |  |  |  | 13 | 0 | 0
Changes in other working capital |  |  |  |  |  |  |  |  | (250) | (162) | (124)
Cash provided/(used) by continuing operations |  |  |  |  |  |  |  |  | 1,003 | 856 | 1,437
Cash provided by discontinued operations |  |  |  |  |  |  |  |  | 374 | 754 | 471
Net Cash Provided by Operating Activities |  |  |  |  |  |  |  |  | 1,377 | 1,610 | 1,908
Cash Flows from Investing Activities |  |  |  |  |  |  |  |  |  |  |
Acquisition of businesses, net of cash acquired |  |  |  |  |  |  |  |  | (243) | (14) | 0
Capital expenditures |  |  |  |  |  |  |  |  | (388) | (254) | (544)
Proceeds from renewable energy grants |  |  |  |  |  |  |  |  | 0 | 8 | 36
Net proceeds from sale/(purchases) of emission allowances |  |  |  |  |  |  |  |  | 19 | 66 | (1)
Net proceeds from sale of emission allowances |  |  |  |  |  |  |  |  |  | (66) | (1)
Investments in nuclear decommissioning trust fund securities |  |  |  |  |  |  |  |  | (572) | (512) | (551)
Proceeds from sales of nuclear decommissioning trust fund securities |  |  |  |  |  |  |  |  | 513 | 501 | 510
Proceeds from sale of assets, net of cash disposed and sale of discontinued operations, net of fees |  |  |  |  |  |  |  |  | 1,564 | 430 | 241
Deconsolidation of Agua Caliente and Ivanpah projects |  |  |  |  |  |  |  |  | (268) | 0 | 0
Changes in investments in unconsolidated affiliates |  |  |  |  |  |  |  |  | (39) | (57) | (33)
Net (contributions to)/distributions from discontinued operations |  |  |  |  |  |  |  |  | (60) | 150 | (58)
Other |  |  |  |  |  |  |  |  | (6) | 22 | 31
Cash provided/(used) by continuing operations |  |  |  |  |  |  |  |  | 520 | 340 | (369)
Cash used by discontinued operations |  |  |  |  |  |  |  |  | (725) | (979) | (388)
Net Cash Used by Investing Activities |  |  |  |  |  |  |  |  | (205) | (639) | (757)
Cash Flows from Financing Activities |  |  |  |  |  |  |  |  |  |  |
Payments (for)/from intercompany loans |  |  |  |  |  |  |  |  | 0 | 0 | 0
Payments of dividends to preferred and common stockholders |  |  |  |  |  |  |  |  | (37) | (38) | (76)
Payment for preferred shares |  |  |  |  |  |  |  |  | (1,250) |  |
Payments for preferred shares |  |  |  |  |  |  |  |  | 0 | 0 | (226)
Payments for debt extinguishment costs |  |  |  |  |  |  |  |  | (32) | (42) | (121)
Net distributions to noncontrolling interests from subsidiaries |  |  |  |  |  |  |  |  | (16) | (30) | (27)
Proceeds/(payments) from issuance of common stock |  |  |  |  |  |  |  |  | 21 | (2) | 1
Proceeds from issuance of long-term debt |  |  |  |  |  |  |  |  | 1,100 | 1,178 | 4,412
Payments of debt issuance costs |  |  |  |  |  |  |  |  | (19) | (18) | (61)
Payments for short and long-term debt |  |  |  |  |  |  |  |  | (1,734) | (1,884) | (5,146)
Receivable from affiliate |  |  |  |  |  |  |  |  |  | (125) |
Receivable from affiliate |  |  |  |  |  |  |  |  | (26) | (125) | 0
Other |  |  |  |  |  |  |  |  | (4) | (8) | (7)
Cash used by continuing operations |  |  |  |  |  |  |  |  | (1,997) | (969) | (1,251)
Cash provided/(used) by discontinued operations |  |  |  |  |  |  |  |  | 471 | (169) | 483
Net Cash (Used)/Provided by Financing Activities |  |  |  |  |  |  |  |  | (1,526) | (1,138) | (768)
Effect of exchange rate changes on cash and cash equivalents |  |  |  |  |  |  |  |  | 1 | (1) | 1
Change in Cash from discontinued operations |  |  |  |  |  |  |  |  | 120 | (394) | 566
Net (Decrease)/Increase in Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash |  |  |  |  |  |  |  |  | (473) | 226 | (182)
Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at End of Period | 613 |  |  |  | 1,086 |  |  |  | 613 | 1,086 | 860
Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at Beginning of Period |  |  |  | 1,086 |  |  |  | 860 | 1,086 | 860 | 1,042
Eliminations |  |  |  |  |  |  |  |  |  |  |
Cash Flows from Operating Activities |  |  |  |  |  |  |  |  |  |  |
Net (Loss)/Income |  |  |  |  |  |  |  |  | (1,239) | (46) | (328)
(Loss)/income from discontinued operations, net of income tax |  |  |  |  |  |  |  |  | 0 | 0 | 0
Net Income/(Loss) from Continuing Operations |  |  |  |  |  |  |  |  | (1,239) | (46) | (328)
Adjustments to reconcile net income/(loss) to net cash provided by operating activities: |  |  |  |  |  |  |  |  |  |  |
Distributions and equity in earnings of unconsolidated affiliates |  |  |  |  |  |  |  |  | 0 | 0 | 0
Depreciation, amortization and accretion |  |  |  |  |  |  |  |  | 0 | 0 | 0
Provision for bad debts |  |  |  |  |  |  |  |  | 0 | 0 | 0
Amortization of nuclear fuel |  |  |  |  |  |  |  |  | 0 | 0 | 0
Amortization of financing costs and debt discount/premiums |  |  |  |  |  |  |  |  | 0 | 0 | 0
Adjustment for debt extinguishment |  |  |  |  |  |  |  |  | 0 | 0 | 0
Amortization of intangibles and out-of-market contracts |  |  |  |  |  |  |  |  | 0 | 0 | 0
Amortization of unearned equity compensation |  |  |  |  |  |  |  |  | 0 | 0 | 0
Net (gain)/loss on sale of assets and equity/cost method investments |  |  |  |  |  |  |  |  | 0 | 0 | 0
Impairment losses |  |  |  |  |  |  |  |  | 0 | 0 | 0
Changes in derivative instruments |  |  |  |  |  |  |  |  | (14) | (2) | 3
Changes in deferred income taxes and liability for uncertain tax benefits |  |  |  |  |  |  |  |  | 0 | 0 | 0
Changes in collateral deposits in support of risk management activities |  |  |  |  |  |  |  |  | 0 | 0 | 0
Changes in nuclear decommissioning trust liability |  |  |  |  |  |  |  |  | 0 | 0 | 0
GenOn settlement, net of insurance proceeds |  |  |  |  |  |  |  |  | 0 |  |
Net loss on deconsolidation of Agua Caliente and Ivanpah projects |  |  |  |  |  |  |  |  | 0 |  |
Changes in other working capital |  |  |  |  |  |  |  |  | 1,253 | 48 | 325
Cash provided/(used) by continuing operations |  |  |  |  |  |  |  |  | 0 | 0 | 0
Cash provided by discontinued operations |  |  |  |  |  |  |  |  | 0 | 0 | 0
Net Cash Provided by Operating Activities |  |  |  |  |  |  |  |  | 0 | 0 | 0
Cash Flows from Investing Activities |  |  |  |  |  |  |  |  |  |  |
Acquisition of businesses, net of cash acquired |  |  |  |  |  |  |  |  | 0 | 0 | 0
Capital expenditures |  |  |  |  |  |  |  |  | 0 | 0 | 0
Proceeds from renewable energy grants |  |  |  |  |  |  |  |  |  | 0 | 0
Net proceeds from sale/(purchases) of emission allowances |  |  |  |  |  |  |  |  | 0 |  |
Net proceeds from sale of emission allowances |  |  |  |  |  |  |  |  |  | 0 | 0
Investments in nuclear decommissioning trust fund securities |  |  |  |  |  |  |  |  | 0 | 0 | 0
Proceeds from sales of nuclear decommissioning trust fund securities |  |  |  |  |  |  |  |  | 0 | 0 | 0
Proceeds from sale of assets, net of cash disposed and sale of discontinued operations, net of fees |  |  |  |  |  |  |  |  | 0 | 0 | 0
Deconsolidation of Agua Caliente and Ivanpah projects |  |  |  |  |  |  |  |  | 0 |  |
Changes in investments in unconsolidated affiliates |  |  |  |  |  |  |  |  | 0 | 0 | 0
Net (contributions to)/distributions from discontinued operations |  |  |  |  |  |  |  |  | 0 | 0 | 0
Other |  |  |  |  |  |  |  |  | 0 | 0 | 0
Cash provided/(used) by continuing operations |  |  |  |  |  |  |  |  | 0 | 0 | 0
Cash used by discontinued operations |  |  |  |  |  |  |  |  | 0 | 0 | 0
Net Cash Used by Investing Activities |  |  |  |  |  |  |  |  | 0 | 0 | 0
Cash Flows from Financing Activities |  |  |  |  |  |  |  |  |  |  |
Payments (for)/from intercompany loans |  |  |  |  |  |  |  |  | 0 | 0 | 0
Payments of dividends to preferred and common stockholders |  |  |  |  |  |  |  |  | 0 | 0 | 0
Payment for preferred shares |  |  |  |  |  |  |  |  | 0 |  |
Payments for preferred shares |  |  |  |  |  |  |  |  |  |  | 0
Payments for debt extinguishment costs |  |  |  |  |  |  |  |  | 0 | 0 | 0
Net distributions to noncontrolling interests from subsidiaries |  |  |  |  |  |  |  |  | 0 | 0 | 0
Proceeds/(payments) from issuance of common stock |  |  |  |  |  |  |  |  | 0 | 0 | 0
Proceeds from issuance of long-term debt |  |  |  |  |  |  |  |  | 0 | 0 | 0
Payments of debt issuance costs |  |  |  |  |  |  |  |  | 0 | 0 | 0
Payments for short and long-term debt |  |  |  |  |  |  |  |  | 0 | 0 | 0
Receivable from affiliate |  |  |  |  |  |  |  |  |  | 0 |
Receivable from affiliate |  |  |  |  |  |  |  |  | 0 |  |
Other |  |  |  |  |  |  |  |  | 0 | 0 | 0
Cash used by continuing operations |  |  |  |  |  |  |  |  | 0 | 0 | 0
Cash provided/(used) by discontinued operations |  |  |  |  |  |  |  |  | 0 | 0 | 0
Net Cash (Used)/Provided by Financing Activities |  |  |  |  |  |  |  |  | 0 | 0 | 0
Effect of exchange rate changes on cash and cash equivalents |  |  |  |  |  |  |  |  | 0 | 0 | 0
Change in Cash from discontinued operations |  |  |  |  |  |  |  |  | 0 | 0 | 0
Net (Decrease)/Increase in Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash |  |  |  |  |  |  |  |  | 0 | 0 | 0
Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at End of Period | 0 |  |  |  | 0 |  |  |  | 0 | 0 | 0
Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at Beginning of Period |  |  |  | 0 |  |  |  | 0 | 0 | 0 | 0
Guarantor Subsidiaries |  |  |  |  |  |  |  |  |  |  |
Cash Flows from Operating Activities |  |  |  |  |  |  |  |  |  |  |
Net (Loss)/Income |  |  |  |  |  |  |  |  | 997 | 421 | 689
(Loss)/income from discontinued operations, net of income tax |  |  |  |  |  |  |  |  | 62 | 91 | 86
Net Income/(Loss) from Continuing Operations |  |  |  |  |  |  |  |  | 935 | 330 | 603
Adjustments to reconcile net income/(loss) to net cash provided by operating activities: |  |  |  |  |  |  |  |  |  |  |
Distributions and equity in earnings of unconsolidated affiliates |  |  |  |  |  |  |  |  | 0 | 0 | (5)
Depreciation, amortization and accretion |  |  |  |  |  |  |  |  | 266 | 343 | 508
Provision for bad debts |  |  |  |  |  |  |  |  | 79 | 56 | 42
Amortization of nuclear fuel |  |  |  |  |  |  |  |  | 48 | 51 | 49
Amortization of financing costs and debt discount/premiums |  |  |  |  |  |  |  |  | 0 | 0 | 0
Adjustment for debt extinguishment |  |  |  |  |  |  |  |  | 0 | 0 | 0
Amortization of intangibles and out-of-market contracts |  |  |  |  |  |  |  |  | 36 | 42 | 56
Amortization of unearned equity compensation |  |  |  |  |  |  |  |  | 0 | 0 | 0
Net (gain)/loss on sale of assets and equity/cost method investments |  |  |  |  |  |  |  |  | (30) | 2 | 70
Impairment losses |  |  |  |  |  |  |  |  | 5 | 1,346 | 370
Changes in derivative instruments |  |  |  |  |  |  |  |  | 25 | (214) | 28
Changes in deferred income taxes and liability for uncertain tax benefits |  |  |  |  |  |  |  |  | 372 | (300) | (1)
Changes in collateral deposits in support of risk management activities |  |  |  |  |  |  |  |  | (94) | (98) | 384
Changes in nuclear decommissioning trust liability |  |  |  |  |  |  |  |  | 60 | 11 | 41
GenOn settlement, net of insurance proceeds |  |  |  |  |  |  |  |  | 0 |  |
Net loss on deconsolidation of Agua Caliente and Ivanpah projects |  |  |  |  |  |  |  |  | 0 |  |
Changes in other working capital |  |  |  |  |  |  |  |  | 311 | 82 | (139)
Cash provided/(used) by continuing operations |  |  |  |  |  |  |  |  | 2,013 | 1,651 | 2,006
Cash provided by discontinued operations |  |  |  |  |  |  |  |  | 89 | 116 | 174
Net Cash Provided by Operating Activities |  |  |  |  |  |  |  |  | 2,102 | 1,767 | 2,180
Cash Flows from Investing Activities |  |  |  |  |  |  |  |  |  |  |
Acquisition of businesses, net of cash acquired |  |  |  |  |  |  |  |  | (40) | (14) | 0
Capital expenditures |  |  |  |  |  |  |  |  | (192) | (180) | (172)
Proceeds from renewable energy grants |  |  |  |  |  |  |  |  |  | 0 | 0
Net proceeds from sale/(purchases) of emission allowances |  |  |  |  |  |  |  |  | 19 |  |
Net proceeds from sale of emission allowances |  |  |  |  |  |  |  |  |  | (66) | (1)
Investments in nuclear decommissioning trust fund securities |  |  |  |  |  |  |  |  | (572) |  | (551)
Proceeds from sales of nuclear decommissioning trust fund securities |  |  |  |  |  |  |  |  | 513 | 501 | 510
Proceeds from sale of assets, net of cash disposed and sale of discontinued operations, net of fees |  |  |  |  |  |  |  |  | 14 | 33 | 0
Deconsolidation of Agua Caliente and Ivanpah projects |  |  |  |  |  |  |  |  | 0 |  |
Changes in investments in unconsolidated affiliates |  |  |  |  |  |  |  |  | 0 | 0 | 0
Net (contributions to)/distributions from discontinued operations |  |  |  |  |  |  |  |  | 0 | 0 | 0
Other |  |  |  |  |  |  |  |  | 0 | 18 | 27
Cash provided/(used) by continuing operations |  |  |  |  |  |  |  |  | (258) | (88) | (187)
Cash used by discontinued operations |  |  |  |  |  |  |  |  | 0 | (13) | (9)
Net Cash Used by Investing Activities |  |  |  |  |  |  |  |  | (258) | (101) | (196)
Cash Flows from Financing Activities |  |  |  |  |  |  |  |  |  |  |
Payments (for)/from intercompany loans |  |  |  |  |  |  |  |  | (1,701) | (1,525) | (1,856)
Payments of dividends to preferred and common stockholders |  |  |  |  |  |  |  |  | 0 | 0 | 0
Payment for preferred shares |  |  |  |  |  |  |  |  | 0 |  |
Payments for preferred shares |  |  |  |  |  |  |  |  |  |  | 0
Payments for debt extinguishment costs |  |  |  |  |  |  |  |  | 0 | 0 | 0
Net distributions to noncontrolling interests from subsidiaries |  |  |  |  |  |  |  |  | 0 | 0 | 0
Proceeds/(payments) from issuance of common stock |  |  |  |  |  |  |  |  | 0 | 0 | 0
Proceeds from issuance of long-term debt |  |  |  |  |  |  |  |  | 0 | 0 | 0
Payments of debt issuance costs |  |  |  |  |  |  |  |  | 0 | 0 | 0
Payments for short and long-term debt |  |  |  |  |  |  |  |  | 0 | 0 | (2)
Receivable from affiliate |  |  |  |  |  |  |  |  |  | 0 |
Receivable from affiliate |  |  |  |  |  |  |  |  | 0 |  |
Other |  |  |  |  |  |  |  |  | 0 | 0 | (3)
Cash used by continuing operations |  |  |  |  |  |  |  |  | (1,701) | (1,525) | (1,861)
Cash provided/(used) by discontinued operations |  |  |  |  |  |  |  |  | 0 | (109) | (163)
Net Cash (Used)/Provided by Financing Activities |  |  |  |  |  |  |  |  | (1,701) | (1,634) | (2,024)
Effect of exchange rate changes on cash and cash equivalents |  |  |  |  |  |  |  |  | 0 | 0 | 0
Change in Cash from discontinued operations |  |  |  |  |  |  |  |  | 89 | (6) | 2
Net (Decrease)/Increase in Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash |  |  |  |  |  |  |  |  | 54 | 38 | (42)
Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at End of Period | 95 |  |  |  | 41 |  |  |  | 95 | 41 | 3
Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at Beginning of Period |  |  |  | 41 |  |  |  | 3 | 41 | 3 | 45
Non-Guarantor Subsidiaries |  |  |  |  |  |  |  |  |  |  |
Cash Flows from Operating Activities |  |  |  |  |  |  |  |  |  |  |
Net (Loss)/Income |  |  |  |  |  |  |  |  | 136 | (543) | (534)
(Loss)/income from discontinued operations, net of income tax |  |  |  |  |  |  |  |  | 75 | (420) | 0
Net Income/(Loss) from Continuing Operations |  |  |  |  |  |  |  |  | 61 | (123) | (534)
Adjustments to reconcile net income/(loss) to net cash provided by operating activities: |  |  |  |  |  |  |  |  |  |  |
Distributions and equity in earnings of unconsolidated affiliates |  |  |  |  |  |  |  |  | 47 | 12 | (14)
Depreciation, amortization and accretion |  |  |  |  |  |  |  |  | 160 | 221 | 238
Provision for bad debts |  |  |  |  |  |  |  |  | 6 | 0 | 3
Amortization of nuclear fuel |  |  |  |  |  |  |  |  | 0 | 0 | 0
Amortization of financing costs and debt discount/premiums |  |  |  |  |  |  |  |  | 6 | 13 | 13
Adjustment for debt extinguishment |  |  |  |  |  |  |  |  | 0 | 0 | 4
Amortization of intangibles and out-of-market contracts |  |  |  |  |  |  |  |  | 9 | 12 | 12
Amortization of unearned equity compensation |  |  |  |  |  |  |  |  | 0 | 0 | 0
Net (gain)/loss on sale of assets and equity/cost method investments |  |  |  |  |  |  |  |  | (20) | (11) | 0
Impairment losses |  |  |  |  |  |  |  |  | 109 | 264 | 365
Changes in derivative instruments |  |  |  |  |  |  |  |  | 15 | 50 | 21
Changes in deferred income taxes and liability for uncertain tax benefits |  |  |  |  |  |  |  |  | 5 | (9) | 49
Changes in collateral deposits in support of risk management activities |  |  |  |  |  |  |  |  | (11) | 18 | 12
Changes in nuclear decommissioning trust liability |  |  |  |  |  |  |  |  | 0 | 0 | 0
GenOn settlement, net of insurance proceeds |  |  |  |  |  |  |  |  | 0 |  |
Net loss on deconsolidation of Agua Caliente and Ivanpah projects |  |  |  |  |  |  |  |  | 13 |  |
Changes in other working capital |  |  |  |  |  |  |  |  | (193) | (354) | (54)
Cash provided/(used) by continuing operations |  |  |  |  |  |  |  |  | 207 | 93 | 115
Cash provided by discontinued operations |  |  |  |  |  |  |  |  | 285 | 638 | 297
Net Cash Provided by Operating Activities |  |  |  |  |  |  |  |  | 492 | 731 | 412
Cash Flows from Investing Activities |  |  |  |  |  |  |  |  |  |  |
Acquisition of businesses, net of cash acquired |  |  |  |  |  |  |  |  | (203) | 0 | 0
Capital expenditures |  |  |  |  |  |  |  |  | (151) | (43) | (326)
Proceeds from renewable energy grants |  |  |  |  |  |  |  |  |  | 8 | 36
Net proceeds from sale/(purchases) of emission allowances |  |  |  |  |  |  |  |  | 0 |  |
Net proceeds from sale of emission allowances |  |  |  |  |  |  |  |  |  | 0 | 0
Investments in nuclear decommissioning trust fund securities |  |  |  |  |  |  |  |  | 0 | 0 | 0
Proceeds from sales of nuclear decommissioning trust fund securities |  |  |  |  |  |  |  |  | 0 | 0 | 0
Proceeds from sale of assets, net of cash disposed and sale of discontinued operations, net of fees |  |  |  |  |  |  |  |  | 8 | 54 | 56
Deconsolidation of Agua Caliente and Ivanpah projects |  |  |  |  |  |  |  |  | (268) |  |
Changes in investments in unconsolidated affiliates |  |  |  |  |  |  |  |  | (39) | (57) | (33)
Net (contributions to)/distributions from discontinued operations |  |  |  |  |  |  |  |  | (60) | 0 | 0
Other |  |  |  |  |  |  |  |  | 0 | 4 | 4
Cash provided/(used) by continuing operations |  |  |  |  |  |  |  |  | (713) | (34) | (263)
Cash used by discontinued operations |  |  |  |  |  |  |  |  | (725) | (966) | (379)
Net Cash Used by Investing Activities |  |  |  |  |  |  |  |  | (1,438) | (1,000) | (642)
Cash Flows from Financing Activities |  |  |  |  |  |  |  |  |  |  |
Payments (for)/from intercompany loans |  |  |  |  |  |  |  |  | 113 | (39) | 375
Payments of dividends to preferred and common stockholders |  |  |  |  |  |  |  |  | 0 | 0 | 0
Payment for preferred shares |  |  |  |  |  |  |  |  | 0 |  |
Payments for preferred shares |  |  |  |  |  |  |  |  |  |  | 0
Payments for debt extinguishment costs |  |  |  |  |  |  |  |  | 0 | 0 | 0
Net distributions to noncontrolling interests from subsidiaries |  |  |  |  |  |  |  |  | (16) | (30) | (27)
Proceeds/(payments) from issuance of common stock |  |  |  |  |  |  |  |  | 0 | 0 | 0
Proceeds from issuance of long-term debt |  |  |  |  |  |  |  |  | 163 | 94 | 271
Payments of debt issuance costs |  |  |  |  |  |  |  |  | 0 | (2) | 0
Payments for short and long-term debt |  |  |  |  |  |  |  |  | (138) | (183) | (221)
Receivable from affiliate |  |  |  |  |  |  |  |  |  | 0 |
Receivable from affiliate |  |  |  |  |  |  |  |  | 0 |  |
Other |  |  |  |  |  |  |  |  | (4) | (8) | (4)
Cash used by continuing operations |  |  |  |  |  |  |  |  | 118 | (168) | 394
Cash provided/(used) by discontinued operations |  |  |  |  |  |  |  |  | 471 | (60) | 646
Net Cash (Used)/Provided by Financing Activities |  |  |  |  |  |  |  |  | 589 | (228) | 1,040
Effect of exchange rate changes on cash and cash equivalents |  |  |  |  |  |  |  |  | 1 | (1) | 1
Change in Cash from discontinued operations |  |  |  |  |  |  |  |  | 31 | (388) | 564
Net (Decrease)/Increase in Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash |  |  |  |  |  |  |  |  | (387) | (110) | 247
Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at End of Period | 38 |  |  |  | 425 |  |  |  | 38 | 425 | 535
Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at Beginning of Period |  |  |  | 425 |  |  |  | 535 | 425 | 535 | 288
NRG Energy, Inc. (Note Issuer) |  |  |  |  |  |  |  |  |  |  |
Cash Flows from Operating Activities |  |  |  |  |  |  |  |  |  |  |
Net (Loss)/Income |  |  |  |  |  |  |  |  | 374 | (2,169) | (718)
(Loss)/income from discontinued operations, net of income tax |  |  |  |  |  |  |  |  | (329) | (663) | (21)
Net Income/(Loss) from Continuing Operations |  |  |  |  |  |  |  |  | 703 | (1,506) | (697)
Adjustments to reconcile net income/(loss) to net cash provided by operating activities: |  |  |  |  |  |  |  |  |  |  |
Distributions and equity in earnings of unconsolidated affiliates |  |  |  |  |  |  |  |  | (1) | 90 | 86
Depreciation, amortization and accretion |  |  |  |  |  |  |  |  | 33 | 32 | 26
Provision for bad debts |  |  |  |  |  |  |  |  | 0 | 12 | 0
Amortization of nuclear fuel |  |  |  |  |  |  |  |  | 0 | 0 | 0
Amortization of financing costs and debt discount/premiums |  |  |  |  |  |  |  |  | 23 | 16 | 20
Adjustment for debt extinguishment |  |  |  |  |  |  |  |  | 44 | 49 | 138
Amortization of intangibles and out-of-market contracts |  |  |  |  |  |  |  |  | 0 | 0 | 0
Amortization of unearned equity compensation |  |  |  |  |  |  |  |  | 25 | 35 | 10
Net (gain)/loss on sale of assets and equity/cost method investments |  |  |  |  |  |  |  |  | 1 | 0 | 69
Impairment losses |  |  |  |  |  |  |  |  | 0 | 4 | 16
Changes in derivative instruments |  |  |  |  |  |  |  |  | 11 | (4) | (36)
Changes in deferred income taxes and liability for uncertain tax benefits |  |  |  |  |  |  |  |  | (372) | 322 | (60)
Changes in collateral deposits in support of risk management activities |  |  |  |  |  |  |  |  | 0 | 0 | 0
Changes in nuclear decommissioning trust liability |  |  |  |  |  |  |  |  | 0 | 0 | 0
GenOn settlement, net of insurance proceeds |  |  |  |  |  |  |  |  | (63) |  |
Net loss on deconsolidation of Agua Caliente and Ivanpah projects |  |  |  |  |  |  |  |  | 0 |  |
Changes in other working capital |  |  |  |  |  |  |  |  | (1,621) | 62 | (256)
Cash provided/(used) by continuing operations |  |  |  |  |  |  |  |  | (1,217) | (888) | (684)
Cash provided by discontinued operations |  |  |  |  |  |  |  |  | 0 | 0 | 0
Net Cash Provided by Operating Activities |  |  |  |  |  |  |  |  | (1,217) | (888) | (684)
Cash Flows from Investing Activities |  |  |  |  |  |  |  |  |  |  |
Acquisition of businesses, net of cash acquired |  |  |  |  |  |  |  |  | 0 | 0 | 0
Capital expenditures |  |  |  |  |  |  |  |  | (45) | (31) | (46)
Proceeds from renewable energy grants |  |  |  |  |  |  |  |  |  | 0 | 0
Net proceeds from sale/(purchases) of emission allowances |  |  |  |  |  |  |  |  | 0 |  |
Net proceeds from sale of emission allowances |  |  |  |  |  |  |  |  |  | 0 | 0
Investments in nuclear decommissioning trust fund securities |  |  |  |  |  |  |  |  | 0 | 0 | 0
Proceeds from sales of nuclear decommissioning trust fund securities |  |  |  |  |  |  |  |  | 0 | 0 | 0
Proceeds from sale of assets, net of cash disposed and sale of discontinued operations, net of fees |  |  |  |  |  |  |  |  | 1,542 | 343 | 185
Deconsolidation of Agua Caliente and Ivanpah projects |  |  |  |  |  |  |  |  | 0 |  |
Changes in investments in unconsolidated affiliates |  |  |  |  |  |  |  |  | 0 | 0 | 0
Net (contributions to)/distributions from discontinued operations |  |  |  |  |  |  |  |  | 0 | 150 | (58)
Other |  |  |  |  |  |  |  |  | (6) | 0 | 0
Cash provided/(used) by continuing operations |  |  |  |  |  |  |  |  | 1,491 | 462 | 81
Cash used by discontinued operations |  |  |  |  |  |  |  |  | 0 | 0 | 0
Net Cash Used by Investing Activities |  |  |  |  |  |  |  |  | 1,491 | 462 | 81
Cash Flows from Financing Activities |  |  |  |  |  |  |  |  |  |  |
Payments (for)/from intercompany loans |  |  |  |  |  |  |  |  | 1,588 | 1,564 | 1,481
Payments of dividends to preferred and common stockholders |  |  |  |  |  |  |  |  | (37) | (38) | (76)
Payment for preferred shares |  |  |  |  |  |  |  |  | (1,250) |  |
Payments for preferred shares |  |  |  |  |  |  |  |  |  |  | (226)
Payments for debt extinguishment costs |  |  |  |  |  |  |  |  | (32) | (42) | (121)
Net distributions to noncontrolling interests from subsidiaries |  |  |  |  |  |  |  |  | 0 | 0 | 0
Proceeds/(payments) from issuance of common stock |  |  |  |  |  |  |  |  | 21 | (2) | 1
Proceeds from issuance of long-term debt |  |  |  |  |  |  |  |  | 937 | 1,084 | 4,141
Payments of debt issuance costs |  |  |  |  |  |  |  |  | (19) | (16) | (61)
Payments for short and long-term debt |  |  |  |  |  |  |  |  | (1,596) | (1,701) | (4,923)
Receivable from affiliate |  |  |  |  |  |  |  |  |  | (125) |
Receivable from affiliate |  |  |  |  |  |  |  |  | (26) |  |
Other |  |  |  |  |  |  |  |  | 0 | 0 | 0
Cash used by continuing operations |  |  |  |  |  |  |  |  | (414) | 724 | 216
Cash provided/(used) by discontinued operations |  |  |  |  |  |  |  |  | 0 | 0 | 0
Net Cash (Used)/Provided by Financing Activities |  |  |  |  |  |  |  |  | (414) | 724 | 216
Effect of exchange rate changes on cash and cash equivalents |  |  |  |  |  |  |  |  | 0 | 0 | 0
Change in Cash from discontinued operations |  |  |  |  |  |  |  |  | 0 | 0 | 0
Net (Decrease)/Increase in Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash |  |  |  |  |  |  |  |  | (140) | 298 | (387)
Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at End of Period | $ 480 |  |  |  | $ 620 |  |  |  | 480 | 620 | 322
Cash and Cash Equivalents, Funds Deposited by Counterparties and Restricted Cash at Beginning of Period |  |  |  | $ 620 |  |  |  | $ 322 | $ 620 | $ 322 | $ 709

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- Definition The aggregate (income) expense recorded in earnings to allocate the cost of out-of-market contracts and intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash (income) expense, this element is added back to net income when calculating cash provided by (used in) operations using the indirect method. + References No definition available. + Details
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- Definition The net change during the reporting period in the nuclear decommissioning trust liability, representing amounts collected, through rates or other authorized charges to electric utility customers, which are designated for funding the Company's portioning of the decommissioning of its nuclear facilities. Following the completion of the decommissioning, if surplus funds remain in the decommissioning trusts, any excess will be refunded to the respective rate payers. + References No definition available. + Details
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- Definition Amount after tax of income (loss) from a discontinued operation attributable to the parent. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=109222160&loc=d3e957-107759 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 3A -URI http://asc.fasb.org/extlink&oid=109222160&loc=SL51721523-107759 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 3B -URI http://asc.fasb.org/extlink&oid=109222160&loc=SL51721525-107759 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109222650&loc=d3e1361-107760 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 5C -Subparagraph (b)(2) -URI http://asc.fasb.org/extlink&oid=109222650&loc=SL51721675-107760 Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 5B -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109222650&loc=SL51721673-107760 Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 19 -URI http://asc.fasb.org/extlink&oid=108774443&loc=SL4569616-111683 Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=109222160&loc=d3e1012-107759 + Details
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