| Segment Reporting |
Segment Reporting The Company's segment structure reflects how management currently makes financial decisions and allocates resources. During January 2017, the Company's businesses are segregated as follows: Generation, which includes generation, international and BETM (previously part of Corporate); Retail which includes Mass customers (previously Retail Mass), and Business Solutions, which includes C&I customers and other distributed and reliability products (previously in the Generation segment); Renewables, which includes solar and wind assets, excluding those in NRG Yield; NRG Yield; and corporate activities. The Company's corporate segment includes residential solar and electric vehicle services. Intersegment sales are accounted for at market. The financial information for years ended December 31, 2016, 2015, and 2014 have been recast to reflect these changes. NRG Yield includes certain of the Company's contracted generation assets. On September 1, 2016 NRG Yield acquired the remaining 51.05% interest in CVSR Holdco LLC, which indirectly owns the CVSR solar facility, from the Company. This acquisition was accounted for as transfers of entities under common control and accordingly, all historical periods have been recast to reflect this change. NRG’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, free cash flow and capital for allocation, as well as net income/(loss) and net income/(loss) attributable to NRG Energy, Inc. During the years ended December 31, 2016, 2015 and 2014, the Company had one customer in the East region within Generation which comprised more than 10% of the Company's consolidated revenues. | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For the Year Ended December 31, 2016 | | Generation(a) | | Retail (a) | | Renewables(a) | | NRG Yield(a) | | Corporate(a) | | Eliminations | | Total | | (In millions) | Operating revenues(a) | $ | 5,679 |
| | $ | 6,336 |
| | $ | 417 |
| | $ | 1,021 |
| | $ | 77 |
| | $ | (1,179 | ) | | $ | 12,351 |
| Operating expenses | 4,922 |
| | 5,169 |
| | 215 |
| | 322 |
| | 212 |
| | (1,184 | ) | | 9,656 |
| Depreciation and amortization | 702 |
| | 115 |
| | 190 |
| | 297 |
| | 63 |
| | — |
| | 1,367 |
| Impairment losses | 645 |
| | 1 |
| | 56 |
| | 183 |
| | 33 |
| | — |
| | 918 |
| Acquisition-related transaction and integration costs | — |
| | — |
| | — |
| | 1 |
| | 7 |
| | — |
| | 8 |
| Development costs | 22 |
| | 4 |
| | 40 |
| | — |
| | 24 |
| | — |
| | 90 |
| Total operating cost and expenses | 6,291 |
| | 5,289 |
| | 501 |
| | 803 |
| | 339 |
| | (1,184 | ) | | 12,039 |
| Gain/(loss) on sale of assets | 294 |
| | (1 | ) | | — |
| | — |
| | (78 | ) | | — |
| | 215 |
| Operating (loss)/income | (318 | ) | | 1,046 |
| | (84 | ) | | 218 |
| | (340 | ) | | 5 |
| | 527 |
| Equity in (losses)/earnings of unconsolidated affiliates | (5 | ) | | — |
| | (30 | ) | | 37 |
| | 7 |
| | 18 |
| | 27 |
| Impairment losses on investments | (142 | ) | | — |
| | (105 | ) | | — |
| | (21 | ) | | — |
| | (268 | ) | Other income, net | 36 |
| | 1 |
| | 1 |
| | 3 |
| | 62 |
| | (61 | ) | | 42 |
| Loss on debt extinguishment | — |
| | — |
| | — |
| | — |
| | (142 | ) | | — |
| | (142 | ) | Interest expense | (79 | ) | | (1 | ) | | (108 | ) | | (274 | ) | | (658 | ) | | 59 |
| | (1,061 | ) | (Loss)/income before income taxes | (508 | ) | | 1,046 |
| | (326 | ) | | (16 | ) | | (1,092 | ) | | 21 |
| | (875 | ) | Income tax (benefit)/expense | (1 | ) | | 1 |
| | (20 | ) | | (1 | ) | | 37 |
| | — |
| | 16 |
| Net (loss)/income | $ | (507 | ) | | $ | 1,045 |
| | $ | (306 | ) | | $ | (15 | ) | | $ | (1,129 | ) | | $ | 21 |
| | $ | (891 | ) | Less: Net (loss)/income attributable to noncontrolling interests and redeemable noncontrolling interests | — |
| | — |
| | (13 | ) | | (54 | ) | | 16 |
| | (66 | ) | | (117 | ) | Net (loss)/income attributable to NRG Energy, Inc. | $ | (507 | ) | | $ | 1,045 |
| | $ | (293 | ) | | $ | 39 |
| | $ | (1,145 | ) | | $ | 87 |
| | $ | (774 | ) | | | | | | | | | | | | | | | Balance sheet | | | | | | | | | | | | | | Equity investments in affiliates | $ | 204 |
| | $ | — |
| | $ | 372 |
| | $ | 710 |
| | $ | 91 |
| | $ | (257 | ) | | $ | 1,120 |
| Capital expenditures (b) | 767 |
| | 12 |
| | 330 |
| | 23 |
| | 110 |
| | — |
| | 1,242 |
| Goodwill | 199 |
| | 340 |
| | 12 |
| |
|
| | 111 |
| |
|
| | 662 |
| Total assets | $ | 13,256 |
| | $ | 1,977 |
| | $ | 5,280 |
| | $ | 8,383 |
| | $ | 15,590 |
| | $ | (14,131 | ) | | $ | 30,355 |
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | (a) Inter-segment sales and net derivative gains and losses included in operating revenues | $ | 955 |
| | $ | 4 |
| | $ | 23 |
| | $ | 8 |
| | $ | 189 |
| | $ | — |
| | $ | 1,179 |
|
(b) Includes accruals.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For the Year Ended December 31, 2015 | | Generation(a) | | Retail (a) | | Renewables(a) | | NRG Yield(a) | | Corporate(a) | | Eliminations | | Total | | (In millions) | Operating revenues(a) | $ | 7,546 |
| | $ | 6,914 |
| | $ | 392 |
| | $ | 953 |
| | $ | 39 |
| | $ | (1,170 | ) | | $ | 14,674 |
| Operating expenses | 6,210 |
| | 6,113 |
| | 185 |
| | 333 |
| | 291 |
| | (1,149 | ) | | 11,983 |
| Depreciation and amortization | 896 |
| | 133 |
| | 181 |
| | 297 |
| | 59 |
| | — |
| | 1,566 |
| Impairment losses | 4,827 |
| | 36 |
| | 13 |
| | — |
| | 132 |
| | 22 |
| | 5,030 |
| Acquisition-related transaction and integration costs | — |
| | 1 |
| | — |
| | 3 |
| | 6 |
| | — |
| | 10 |
| Development costs | 27 |
| | 4 |
| | 52 |
| | — |
| | 63 |
| | — |
| | 146 |
| Total operating cost and expenses | 11,960 |
| | 6,287 |
| | 431 |
| | 633 |
| | 551 |
| | (1,127 | ) | | 18,735 |
| Gain on postretirement benefits curtailment | 21 |
| | — |
| | — |
| | — |
| | — |
| | — |
| | 21 |
| Operating (loss)/income | (4,393 | ) | | 627 |
|
| (39 | ) |
| 320 |
|
| (512 | ) |
| (43 | ) |
| (4,040 | ) | Equity in earnings/(losses) of unconsolidated affiliates | 10 |
| | — |
| | 9 |
| | 26 |
| | — |
| | (9 | ) | | 36 |
| Impairment losses on investments | (14 | ) | | — |
| | — |
| | — |
| | (42 | ) | | — |
| | (56 | ) | Other income, net | 48 |
| | (1 | ) | | 3 |
| | 3 |
| | 78 |
| | (98 | ) | | 33 |
| (Loss)/gain on debt extinguishment | — |
| | — |
| | — |
| | (9 | ) | | 84 |
| | — |
| | 75 |
| Loss on sale of equity method investment | — |
| | — |
| | — |
| | — |
| | (14 | ) | | — |
| | (14 | ) | Interest expense | (97 | ) | | (1 | ) | | (83 | ) | | (263 | ) | | (779 | ) | | 95 |
| | (1,128 | ) | (Loss)/income before income taxes | (4,446 | ) | | 625 |
|
| (110 | ) |
| 77 |
|
| (1,185 | ) |
| (55 | ) |
| (5,094 | ) | Income tax expense/(benefit) | — |
| | 1 |
| | (18 | ) | | 12 |
| | 1,347 |
| | — |
| | 1,342 |
| Net (loss)/income | (4,446 | ) | | 624 |
| | (92 | ) | | 65 |
| | (2,532 | ) | | (55 | ) | | (6,436 | ) | Less: Net income/(loss) attributable to noncontrolling interests and redeemable noncontrolling interests | — |
| | — |
| | 6 |
| | 19 |
| | (37 | ) | | (42 | ) | | (54 | ) | Net (loss)/income attributable to NRG Energy, Inc. | $ | (4,446 | ) | | $ | 624 |
| | $ | (98 | ) | | $ | 46 |
| | $ | (2,495 | ) | | $ | (13 | ) | | $ | (6,382 | ) | | | | | | | | | | | | | | | Balance sheet | | | | | | | | | | | | | | Equity investments in affiliates | $ | 334 |
| | $ | — |
| | $ | 134 |
| | $ | 697 |
| | $ | 127 |
| | $ | (247 | ) | | $ | 1,045 |
| Capital expenditures(b) | 792 |
| | 36 |
| | 163 |
| | 30 |
| | 246 |
| | — |
| | 1,267 |
| Goodwill | 536 |
| | 340 |
| | 12 |
| | — |
| | 111 |
| | — |
| | 999 |
| Total assets | $ | 17,625 |
| | $ | 2,017 |
| | $ | 5,142 |
| | $ | 8,689 |
| | $ | 19,720 |
| | $ | (20,311 | ) | | $ | 32,882 |
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | (a) Inter-segment sales and net derivative gains and losses included in operating revenues | $ | 898 |
| | $ | 6 |
| | $ | 25 |
| | $ | 29 |
| | $ | 212 |
| | $ | — |
| | $ | 1,170 |
|
(b) Includes accruals.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For the Year Ended December 31, 2014 | | Generation(a) | | Retail(a) | | Renewables(a) | | NRG Yield(a) | | Corporate(a) | | Eliminations | | Total | | (In millions) | Operating revenues(a) | $ | 9,288 |
| | $ | 7,393 |
| | $ | 344 |
| | $ | 828 |
| | $ | 19 |
| | $ | (2,004 | ) | | $ | 15,868 |
| Operating expenses | 6,985 |
| | 7,270 |
| | 191 |
| | 285 |
| | 151 |
| | (2,058 | ) | | 12,824 |
| Depreciation and amortization | 957 |
| | 134 |
| | 164 |
| | 233 |
| | 35 |
| | — |
| | 1,523 |
| Impairment losses | 87 |
| | — |
| | 32 |
| | — |
| | (22 | ) | | — |
| | 97 |
| Acquisition-related transaction and integration costs | 1 |
| | 3 |
| | — |
| | 4 |
| | 76 |
| | — |
| | 84 |
| Development costs | 12 |
| | 1 |
| | 40 |
| | — |
| | 35 |
| | — |
| | 88 |
| Total operating costs and expenses | 8,042 |
| | 7,408 |
| | 427 |
| | 522 |
| | 275 |
| | (2,058 | ) | | 14,616 |
| Gain on sale of assets | 19 |
| | — |
| | — |
| | — |
| | — |
| | — |
| | 19 |
| Operating income/(loss) | 1,265 |
| | (15 | ) | | (83 | ) | | 306 |
| | (256 | ) | | 54 |
| | 1,271 |
| Equity in earnings/(losses)of unconsolidated affiliates | 23 |
| | — |
| | (4 | ) | | 17 |
| | — |
| | 2 |
| | 38 |
| Other income, net | 39 |
| | — |
| | 1 |
| | 6 |
| | 75 |
| | (99 | ) | | 22 |
| Gain on sale of equity method investment | 18 |
| | — |
| | — |
| | — |
| | — |
| | — |
| | 18 |
| Loss on debt extinguishment | — |
| | — |
| | (1 | ) | | (1 | ) | | (93 | ) | | — |
| | (95 | ) | Interest expense | (94 | ) | | (2 | ) | | (97 | ) | | (216 | ) | | (806 | ) | | 96 |
| | (1,119 | ) | Income/(loss) before income taxes | 1,251 |
| | (17 | ) | | (184 | ) | | 112 |
| | (1,080 | ) | | 53 |
| | 135 |
| Income tax expense/(benefit) | 3 |
| | 1 |
| | — |
| | 4 |
| | (5 | ) | | — |
| | 3 |
| Net income/(loss) | $ | 1,248 |
| | (18 | ) | | (184 | ) | | 108 |
| | (1,075 | ) | | 53 |
| | 132 |
| Less: Net (loss)/income attributable to noncontrolling interests and redeemable noncontrolling interests | (1 | ) | | — |
| | 2 |
| | 16 |
| | 5 |
| | (24 | ) | | (2 | ) | Net income/(loss) attributable to NRG Energy, Inc. | $ | 1,249 |
| | $ | (18 | ) | | $ | (186 | ) | | $ | 92 |
| | $ | (1,080 | ) | | $ | 77 |
| | $ | 134 |
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | (a) Inter-segment sales and net derivative gains and losses included in operating revenues | $ | 1,873 |
| | $ | 7 |
| | $ | 25 |
| | $ | 12 |
| | $ | 85 |
| | $ | — |
| | $ | 2,002 |
|
As of December 31, 2016, the Company's businesses were segregated as follows: Generation (previously named Generation/Business), which includes generation, international and business solutions; Retail Mass (previously NRG Home Retail); Renewables (previously named NRG Renew), which includes solar and wind assets, excluding those in NRG Yield; NRG Yield; and corporate activities. The Company's corporate segment included BETM, residential solar (previously part of NRG Home) and electric vehicle services. During 2016, the Company began reporting the results of its residential solar business in its corporate segment and its international business in its Generation segment. The financial information for years ended December 31, 2016, 2015, and 2014 have been recast to reflect these changes. NRG Yield includes certain of the Company's contracted generation assets. On September 1, 2016 NRG Yield acquired the remaining 51.05% interest in CVSR Holdco LLC, which indirectly owns the CVSR solar facility, from the Company. This acquisition was accounted for as transfers of entities under common control and accordingly, all historical periods have been recast to reflect this change.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For the Year Ended December 31, 2016 | | Generation(a) | | Retail Mass(a) | | Renewables(a) | | NRG Yield(a) | | Corporate(a) | | Eliminations | | Total | | (In millions) | Operating revenues(a) | $ | 6,927 |
| | $ | 4,966 |
| | $ | 417 |
| | $ | 1,021 |
| | $ | 137 |
| | $ | (1,117 | ) | | $ | 12,351 |
| Operating expenses | 6,020 |
| | 3,987 |
| | 215 |
| | 322 |
| | 235 |
| | (1,123 | ) | | 9,656 |
| Depreciation and amortization | 712 |
| | 104 |
| | 190 |
| | 297 |
| | 64 |
| | — |
| | 1,367 |
| Impairment losses | 646 |
| | — |
| | 56 |
| | 183 |
| | 33 |
| | — |
| | 918 |
| Acquisition-related transaction and integration costs | — |
| | — |
| | — |
| | 1 |
| | 7 |
| | — |
| | 8 |
| Development costs | 26 |
| | — |
| | 40 |
| | — |
| | 24 |
| | — |
| | 90 |
| Total operating cost and expenses | 7,404 |
| | 4,091 |
| | 501 |
| | 803 |
| | 363 |
| | (1,123 | ) | | 12,039 |
| Gain/(loss) on sale of assets | 293 |
| | — |
| | — |
| | — |
| | (78 | ) | | — |
| | 215 |
| Operating (loss)/income | (184 | ) | | 875 |
| | (84 | ) | | 218 |
| | (304 | ) | | 6 |
| | 527 |
| Equity in (losses)/earnings of unconsolidated affiliates | (5 | ) | | — |
| | (30 | ) | | 37 |
| | 7 |
| | 18 |
| | 27 |
| Impairment losses on investments | (142 | ) | | — |
| | (105 | ) | | — |
| | (21 | ) | | — |
| | (268 | ) | Other income, net | 37 |
| | — |
| | 1 |
| | 3 |
| | 62 |
| | (61 | ) | | 42 |
| Loss on debt extinguishment | — |
| | — |
| | — |
| | — |
| | (142 | ) | | — |
| | (142 | ) | Interest expense | (80 | ) | | — |
| | (108 | ) | | (274 | ) | | (658 | ) | | 59 |
| | (1,061 | ) | (Loss)/income before income taxes | (374 | ) | | 875 |
| | (326 | ) | | (16 | ) | | (1,056 | ) | | 22 |
| | (875 | ) | Income tax (benefit)/expense | — |
| | — |
| | (20 | ) | | (1 | ) | | 37 |
| | — |
| | 16 |
| Net (loss)/income | $ | (374 | ) | | $ | 875 |
| | $ | (306 | ) | | $ | (15 | ) | | $ | (1,093 | ) | | $ | 22 |
| | $ | (891 | ) | Less: Net (loss)/income attributable to noncontrolling interests and redeemable noncontrolling interests | — |
| | — |
| | (13 | ) | | (54 | ) | | 16 |
| | (66 | ) | | (117 | ) | Net (loss)/income attributable to NRG Energy, Inc. | $ | (374 | ) | | $ | 875 |
| | $ | (293 | ) | | $ | 39 |
| | $ | (1,109 | ) | | $ | 88 |
| | $ | (774 | ) | | | | | | | | | | | | | | | Balance sheet | | | | | | | | | | | | | | Equity investments in affiliates | $ | 204 |
| | $ | — |
| | $ | 372 |
| | $ | 710 |
| | $ | 91 |
| | $ | (257 | ) | | $ | 1,120 |
| Capital expenditures (b) | 779 |
| | 59 |
| | 330 |
| | 23 |
| | 51 |
| | — |
| | 1,242 |
| Goodwill | 199 |
| | 340 |
| | 12 |
| | — |
| | 111 |
| | — |
| | 662 |
| Total assets | $ | 13,234 |
| | $ | 1,589 |
| | $ | 5,280 |
| | $ | 8,383 |
| | $ | 15,734 |
| | $ | (13,865 | ) | | $ | 30,355 |
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | (a) Inter-segment sales and net derivative gains and losses included in operating revenues | $ | 893 |
| | $ | 2 |
| | $ | 23 |
| | $ | 8 |
| | $ | 191 |
| | $ | — |
| | $ | 1,117 |
|
(b) Includes accruals.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For the Year Ended December 31, 2015 | | Generation(a) | | Retail Mass (a) | | Renewables(a) | | NRG Yield(a) | | Corporate(a) | | Eliminations | | Total | | (In millions) | Operating revenues(a) | $ | 9,097 |
| | $ | 5,389 |
| | $ | 392 |
| | $ | 953 |
| | $ | 14 |
| | $ | (1,171 | ) | | $ | 14,674 |
| Operating expenses | 7,744 |
| | 4,561 |
| | 184 |
| | 333 |
| | 310 |
| | (1,149 | ) | | 11,983 |
| Depreciation and amortization | 907 |
| | 123 |
| | 180 |
| | 297 |
| | 59 |
| | — |
| | 1,566 |
| Impairment losses | 4,827 |
| | 36 |
| | 13 |
| | — |
| | 132 |
| | 22 |
| | 5,030 |
| Acquisition-related transaction and integration costs | — |
| | 1 |
| | — |
| | 3 |
| | 6 |
| | — |
| | 10 |
| Development costs | 31 |
| | — |
| | 52 |
| | — |
| | 63 |
| | — |
| | 146 |
| Total operating cost and expenses | 13,509 |
| | 4,721 |
| | 429 |
| | 633 |
| | 570 |
| | (1,127 | ) | | 18,735 |
| Gain on postretirement benefits curtailment | 21 |
| | — |
| | — |
| | — |
| | — |
| | — |
| | 21 |
| Operating (loss)/income | (4,391 | ) | | 668 |
| | (37 | ) | | 320 |
| | (556 | ) | | (44 | ) | | (4,040 | ) | Equity in earnings/(losses) of unconsolidated affiliates | 10 |
| | — |
| | 9 |
| | 26 |
| | (3 | ) | | (6 | ) | | 36 |
| Impairment losses on investments | (14 | ) | | — |
| | — |
| | — |
| | (42 | ) | | — |
| | (56 | ) | Other income, net | 48 |
| | — |
| | 3 |
| | 3 |
| | 77 |
| | (98 | ) | | 33 |
| (Loss)/gain on debt extinguishment | — |
| | — |
| | — |
| | (9 | ) | | 84 |
| | — |
| | 75 |
| Loss on sale of equity method investment | — |
| | — |
| | — |
| | — |
| | (14 | ) | | — |
| | (14 | ) | Interest expense | (98 | ) | | — |
| | (83 | ) | | (263 | ) | | (779 | ) | | 95 |
| | (1,128 | ) | (Loss)/income before income taxes | (4,445 | ) | | 668 |
| | (108 | ) | | 77 |
| | (1,233 | ) | | (53 | ) | | (5,094 | ) | Income tax expense/(benefit) | 1 |
| | — |
| | (18 | ) | | 12 |
| | 1,347 |
| | — |
| | 1,342 |
| Net (loss)/income | (4,446 | ) | | 668 |
| | (90 | ) | | 65 |
| | (2,580 | ) | | (53 | ) | | (6,436 | ) | Less: Net income/(loss) attributable to noncontrolling interests and redeemable noncontrolling interests | — |
| | — |
| | 6 |
| | 19 |
| | (37 | ) | | (42 | ) | | (54 | ) | Net (loss)/income attributable to NRG Energy, Inc. | $ | (4,446 | ) | | $ | 668 |
| | $ | (96 | ) | | $ | 46 |
| | $ | (2,543 | ) | | $ | (11 | ) | | $ | (6,382 | ) | | | | | | | | | | | | | | | Balance sheet | | | | | | | | | | | | | | Equity investments in affiliates | $ | 334 |
| | $ | — |
| | $ | 134 |
| | $ | 697 |
| | $ | 127 |
| | $ | (247 | ) | | $ | 1,045 |
| Capital expenditures(b) | 798 |
| | 30 |
| | 163 |
| | 30 |
| | 246 |
| | — |
| | 1,267 |
| Goodwill | 536 |
| | 340 |
| | 12 |
| | — |
| | 111 |
| | — |
| | 999 |
| Total assets | $ | 17,324 |
| | $ | 1,876 |
| | $ | 5,142 |
| | $ | 8,689 |
| | $ | 19,926 |
| | $ | (20,075 | ) | | $ | 32,882 |
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | (a) Inter-segment sales and net derivative gains and losses included in operating revenues | $ | 898 |
| | $ | 6 |
| | $ | 25 |
| | $ | 29 |
| | $ | 213 |
| | $ | — |
| | $ | 1,171 |
|
(b) Includes accruals.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For the Year Ended December 31, 2014 | | Generation(a) | | Retail Mass (a) | | Renewables(a) | | NRG Yield(a) | | Corporate(a) | | Eliminations | | Total | | (In millions) | Operating revenues(a) | $ | 11,113 |
| | $ | 5,503 |
| | $ | 344 |
| | $ | 828 |
| | $ | 82 |
| | $ | (2,002 | ) | | $ | 15,868 |
| Operating expenses | 8,993 |
| | 5,236 |
| | 191 |
| | 285 |
| | 171 |
| | (2,052 | ) | | 12,824 |
| Depreciation and amortization | 966 |
| | 122 |
| | 164 |
| | 233 |
| | 38 |
| | — |
| | 1,523 |
| Impairment losses | 87 |
| | — |
| | 32 |
| | — |
| | (22 | ) | | — |
| | 97 |
| Acquisition-related transaction and integration costs | 1 |
| | 3 |
| | — |
| | 4 |
| | 76 |
| | — |
| | 84 |
| Development costs | 13 |
| | — |
| | 40 |
| | — |
| | 35 |
| | — |
| | 88 |
| Total operating costs and expenses | 10,060 |
| | 5,361 |
| | 427 |
| | 522 |
| | 298 |
| | (2,052 | ) | | 14,616 |
| Gain on sale of assets | 19 |
| | — |
| | — |
| | — |
| | — |
| | — |
| | 19 |
| Operating income/(loss) | 1,072 |
| | 142 |
| | (83 | ) | | 306 |
| | (216 | ) | | 50 |
| | 1,271 |
| Equity in earnings/(losses)of unconsolidated affiliates | 23 |
| | — |
| | (4 | ) | | 17 |
| | — |
| | 2 |
| | 38 |
| Other income, net | 39 |
| | — |
| | 1 |
| | 6 |
| | 75 |
| | (99 | ) | | 22 |
| Gain on sale of equity method investment | 18 |
| | — |
| | — |
| | — |
| | — |
| | — |
| | 18 |
| Loss on debt extinguishment | — |
| | — |
| | (1 | ) | | (1 | ) | | (93 | ) | | — |
| | (95 | ) | Interest expense | (95 | ) | | (1 | ) | | (97 | ) | | (216 | ) | | (806 | ) | | 96 |
| | (1,119 | ) | Income/(loss) before income taxes | 1,057 |
| | 141 |
| | (184 | ) | | 112 |
| | (1,040 | ) | | 49 |
| | 135 |
| Income tax expense/(benefit) | 4 |
| | — |
| | — |
| | 4 |
| | (5 | ) | | — |
| | 3 |
| Net income/(loss) | 1,053 |
| | 141 |
| | (184 | ) | | 108 |
| | (1,035 | ) | | 49 |
| | 132 |
| Less: Net (loss)/income attributable to noncontrolling interests and redeemable noncontrolling interests | (1 | ) | | — |
| | 2 |
| | 16 |
| | 5 |
| | (24 | ) | | (2 | ) | Net income/(loss) attributable to NRG Energy, Inc. | $ | 1,054 |
| | $ | 141 |
| | $ | (186 | ) | | $ | 92 |
| | $ | (1,040 | ) | | $ | 73 |
| | $ | 134 |
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | (a) Inter-segment sales and net derivative gains and losses included in operating revenues | $ | 1,873 |
| | $ | 7 |
| | $ | 25 |
| | $ | 12 |
| | $ | 85 |
| | $ | — |
| | $ | 2,002 |
|
|