Segment Reporting The Companys segment structure reflects how management currently operates and allocates resources. The Company's businesses are segregated based on conventional power generation, renewable businesses which consist of solar and wind, and the thermal and chilled water business. The Corporate segment reflects the Company's corporate costs. The Company's chief operating decision maker, its Chief Executive Officer, evaluates the performance of its segments based on operational measures including adjusted earnings before interest, taxes, depreciation and amortization, or Adjusted EBITDA, and CAFD, as well as economic gross margin and net income (loss). Three months ended September 30, 2020 (In millions) Conventional Generation Renewables Thermal Corporate Total Operating revenues $ 116 $ 157 $ 59 $  $ 332 Cost of operations 21 33 41  95 Depreciation, amortization and accretion 34 61 7  102 General and administrative   1 8 9 Transaction and integration costs    1 1 Development costs   2  2 Operating income (loss) 61 63 8 (9) 123 Equity in earnings of unconsolidated affiliates 3 16   19 Other income, net 1  (1)   Loss on debt extinguishment  (6)   (6) Interest expense (17) (39) (6) (23) (85) Income (loss) before income taxes 48 34 1 (32) 51 Income tax expense    9 9 Net Income (Loss) $ 48 $ 34 $ 1 $ (41) $ 42 Total Assets $ 2,615 $ 6,210 $ 627 $ 273 $ 9,725 Three months ended September 30, 2019 (In millions) Conventional Generation Renewables Thermal Corporate Total Operating revenues $ 90 $ 151 $ 55 $  $ 296 Cost of operations 13 35 36  84 Depreciation, amortization and accretion 26 81 7  114 General and administrative  1 1 5 7 Development costs   1  1 Operating income (loss) 51 34 10 (5) 90 Equity in earnings of unconsolidated affiliates 3 35   38 Other income, net  2   2 Interest expense (13) (65) (5) (23) (106) Income (loss) before income taxes 41 6 5 (28) 24 Income tax benefit    (11) (11) Net Income (Loss) $ 41 $ 6 $ 5 $ (17) $ 35 Nine months ended September 30, 2020 (In millions) Conventional Generation Renewables Thermal Corporate Total Operating revenues $ 326 $ 444 $ 149 $  $ 919 Cost of operations 67 108 100  275 Depreciation, amortization and accretion 100 182 21  303 General and administrative  1 4 25 30 Transaction and integration costs    2 2 Development costs   4  4 Operating income (loss) 159 153 20 (27) 305 Equity in earnings of unconsolidated affiliates 6 16   22 Gain on sale of unconsolidated affiliate    49 49 Other income, net 1 1   2 Loss on debt extinguishment  (6)  (3) (9) Interest expense (69) (190) (16) (70) (345) Income (loss) before income taxes 97 (26) 4 (51) 24 Income tax expense    13 13 Net Income (Loss) $ 97 $ (26) $ 4 $ (64) $ 11 Nine months ended September 30, 2019 (In millions) Conventional Generation Renewables Thermal Corporate Total Operating revenues $ 253 $ 392 $ 152 $  $ 797 Cost of operations 44 102 99  245 Depreciation, amortization and accretion 75 194 20  289 Impairment losses   19  19 General and administrative  1 2 17 20 Transaction and integration costs    2 2 Development costs   4  4 Operating income (loss) 134 95 8 (19) 218 Equity in earnings of unconsolidated affiliates 7 45   52 Other income, net 1 4  1 6 Loss on debt extinguishment  (1)   (1) Interest expense (45) (213) (13) (66) (337) Income (loss) before income taxes 97 (70) (5) (84) (62) Income tax benefit    (14) (14) Net Income (Loss) $ 97 $ (70) $ (5) $ (70) $ (48)