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v3.20.2

Segment Reporting (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2020 | Jun. 30, 2020 | Mar. 31, 2020 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Sep. 30, 2020 | Sep. 30, 2019 | Dec. 31, 2019
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |
Operating revenues | $ 332 |  |  | $ 296 |  |  | $ 919 | $ 797 |
Cost of operations | 95 |  |  | 84 |  |  | 275 | 245 |
Depreciation, amortization and accretion | 102 |  |  | 114 |  |  | 303 | 289 |
Impairment losses | 0 |  |  | 0 |  |  | 0 | 19 |
General and administrative | 9 |  |  | 7 |  |  | 30 | 20 |
Transaction and integration costs | 1 |  |  | 0 |  |  | 2 | 2 |
Development costs | 2 |  |  | 1 |  |  | 4 | 4 |
Operating Income | 123 |  |  | 90 |  |  | 305 | 218 |
Equity in earnings of unconsolidated affiliates | 19 |  |  | 38 |  |  | 22 | 52 |
Gain on sale of unconsolidated affiliate | 0 |  |  | 0 |  |  | 49 | 0 |
Other income, net | 0 |  |  | 2 |  |  | 2 | 6 |
Loss on debt extinguishment | (6) |  |  | 0 |  |  | (9) | (1) |
Interest expense | (85) |  |  | (106) |  |  | (345) | (337) |
Income (Loss) Before Income Taxes | 51 |  |  | 24 |  |  | 24 | (62) |
Income tax expense (benefit) | 9 |  |  | (11) |  |  | 13 | (14) |
Net income (loss) | 42 | $ 76 | $ (107) | 35 | $ (36) | $ (47) | 11 | (48) |
Total Assets | 9,725 |  |  |  |  |  | 9,725 |  | $ 9,700
Thermal |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |
Impairment losses |  |  |  |  | $ 19 |  |  |  |
Operating Segments |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |
Operating revenues | 332 |  |  | 296 |  |  | 919 | 797 |
Operating Segments | Conventional Generation |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |
Operating revenues | 116 |  |  | 90 |  |  | 326 | 253 |
Cost of operations | 21 |  |  | 13 |  |  | 67 | 44 |
Depreciation, amortization and accretion | 34 |  |  | 26 |  |  | 100 | 75 |
Impairment losses |  |  |  |  |  |  |  | 0 |
General and administrative | 0 |  |  | 0 |  |  | 0 | 0 |
Transaction and integration costs | 0 |  |  |  |  |  | 0 | 0 |
Development costs | 0 |  |  | 0 |  |  | 0 | 0 |
Operating Income | 61 |  |  | 51 |  |  | 159 | 134 |
Equity in earnings of unconsolidated affiliates | 3 |  |  | 3 |  |  | 6 | 7 |
Gain on sale of unconsolidated affiliate |  |  |  |  |  |  | 0 |  |
Other income, net | 1 |  |  | 0 |  |  | 1 | 1 |
Loss on debt extinguishment | 0 |  |  |  |  |  | 0 | 0 |
Interest expense | (17) |  |  | (13) |  |  | (69) | (45) |
Income (Loss) Before Income Taxes | 48 |  |  | 41 |  |  | 97 | 97 |
Income tax expense (benefit) | 0 |  |  | 0 |  |  | 0 | 0 |
Net income (loss) | 48 |  |  | 41 |  |  | 97 | 97 |
Total Assets | 2,615 |  |  |  |  |  | 2,615 |  |
Operating Segments | Renewables |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |
Operating revenues | 157 |  |  | 151 |  |  | 444 | 392 |
Cost of operations | 33 |  |  | 35 |  |  | 108 | 102 |
Depreciation, amortization and accretion | 61 |  |  | 81 |  |  | 182 | 194 |
Impairment losses |  |  |  |  |  |  |  | 0 |
General and administrative | 0 |  |  | 1 |  |  | 1 | 1 |
Transaction and integration costs | 0 |  |  |  |  |  | 0 | 0 |
Development costs | 0 |  |  | 0 |  |  | 0 | 0 |
Operating Income | 63 |  |  | 34 |  |  | 153 | 95 |
Equity in earnings of unconsolidated affiliates | 16 |  |  | 35 |  |  | 16 | 45 |
Gain on sale of unconsolidated affiliate |  |  |  |  |  |  | 0 |  |
Other income, net | 0 |  |  | 2 |  |  | 1 | 4 |
Loss on debt extinguishment | (6) |  |  |  |  |  | (6) | (1) |
Interest expense | (39) |  |  | (65) |  |  | (190) | (213) |
Income (Loss) Before Income Taxes | 34 |  |  | 6 |  |  | (26) | (70) |
Income tax expense (benefit) | 0 |  |  | 0 |  |  | 0 | 0 |
Net income (loss) | 34 |  |  | 6 |  |  | (26) | (70) |
Total Assets | 6,210 |  |  |  |  |  | 6,210 |  |
Operating Segments | Thermal |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |
Operating revenues | 59 |  |  | 55 |  |  | 149 | 152 |
Cost of operations | 41 |  |  | 36 |  |  | 100 | 99 |
Depreciation, amortization and accretion | 7 |  |  | 7 |  |  | 21 | 20 |
Impairment losses |  |  |  |  |  |  |  | 19 |
General and administrative | 1 |  |  | 1 |  |  | 4 | 2 |
Transaction and integration costs | 0 |  |  |  |  |  | 0 | 0 |
Development costs | 2 |  |  | 1 |  |  | 4 | 4 |
Operating Income | 8 |  |  | 10 |  |  | 20 | 8 |
Equity in earnings of unconsolidated affiliates | 0 |  |  | 0 |  |  | 0 | 0 |
Gain on sale of unconsolidated affiliate |  |  |  |  |  |  | 0 |  |
Other income, net | (1) |  |  | 0 |  |  | 0 | 0 |
Loss on debt extinguishment | 0 |  |  |  |  |  | 0 | 0 |
Interest expense | (6) |  |  | (5) |  |  | (16) | (13) |
Income (Loss) Before Income Taxes | 1 |  |  | 5 |  |  | 4 | (5) |
Income tax expense (benefit) | 0 |  |  | 0 |  |  | 0 | 0 |
Net income (loss) | 1 |  |  | 5 |  |  | 4 | (5) |
Total Assets | 627 |  |  |  |  |  | 627 |  |
Corporate |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |
Operating revenues | 0 |  |  | 0 |  |  | 0 | 0 |
Cost of operations | 0 |  |  | 0 |  |  | 0 | 0 |
Depreciation, amortization and accretion | 0 |  |  | 0 |  |  | 0 | 0 |
Impairment losses |  |  |  |  |  |  |  | 0 |
General and administrative | 8 |  |  | 5 |  |  | 25 | 17 |
Transaction and integration costs | 1 |  |  |  |  |  | 2 | 2 |
Development costs | 0 |  |  | 0 |  |  | 0 | 0 |
Operating Income | (9) |  |  | (5) |  |  | (27) | (19) |
Equity in earnings of unconsolidated affiliates | 0 |  |  | 0 |  |  | 0 | 0 |
Gain on sale of unconsolidated affiliate |  |  |  |  |  |  | 49 |  |
Other income, net | 0 |  |  | 0 |  |  | 0 | 1 |
Loss on debt extinguishment | 0 |  |  |  |  |  | (3) | 0 |
Interest expense | (23) |  |  | (23) |  |  | (70) | (66) |
Income (Loss) Before Income Taxes | (32) |  |  | (28) |  |  | (51) | (84) |
Income tax expense (benefit) | 9 |  |  | (11) |  |  | 13 | (14) |
Net income (loss) | (41) |  |  | $ (17) |  |  | (64) | $ (70) |
Total Assets | $ 273 |  |  |  |  |  | $ 273 |  |

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