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Segment Reporting | 9 Months Ended
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Sep. 30, 2019
Segment Reporting [Abstract] |
Segment Reporting | Segment Reporting The Company's segment structure reflects how management currently makes financial decisions and allocates resources. The Company's businesses are segregated into the Retail, Generation and corporate segments. Retail includes Mass customers and Business Solutions, which includes C&I customers and other distributed and reliability products. Intersegment sales are accounted for at market. Generation includes all power plant activities, domestic and international, as well as renewables. The financial information for the nine months ended September 30, 2018 has been recast to reflect the current segment structure. On February 4, 2019, as described in Note 4, Acquisitions, Discontinued Operations and Dispositions, the Company completed the sale of and deconsolidated the South Central Portfolio. On August 31, 2018, as described in Note 4, Acquisitions, Discontinued Operations and Dispositions, NRG deconsolidated NRG Yield, Inc., its Renewables Platform and Carlsbad for financial reporting purposes. The financial information presented below has been recast to reflect the presentation of these entities as discontinued operations within the corporate segment. 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.
| Three months ended September 30, 2019 (a) |  |  |  |  |  |  |  |
| Retail |  | Generation |  | Corporate |  | Eliminations |  | Total
| (In millions) |  |  |  |  |  |  |  |
Operating revenues(b) | $ | 2,544 |  |  | $ | 974 |  |  | $ | — |  |  | $ | (522) |  |  | $ | 2,996 |
Depreciation and amortization | 37 |  |  | 47 |  |  | 7 |  |  | — |  |  | 91 |
Reorganization costs | 1 |  |  | — |  |  | — |  |  | — |  |  | 1 |
(Loss)/gain on sale of assets | (1) |  |  | 1 |  |  | — |  |  | — |  |  | — |
Equity in earnings of unconsolidated affiliates | — |  |  | 29 |  |  | — |  |  | — |  |  | 29 |
Income/(loss) from continuing operations before income taxes | 422 |  |  | 64 |  |  | (107) |  |  | 1 |  |  | 380 |
Income/(loss) from continuing operations | 422 |  |  | 63 |  |  | (112) |  |  | 1 |  |  | 374 |
Loss from discontinued operations, net of tax | — |  |  | — |  |  | (2) |  |  | — |  |  | (2) |
Net income/(loss) | 422 |  |  | 63 |  |  | (114) |  |  | 1 |  |  | 372 |
Net income/(loss) attributable to NRG Energy, Inc. | $ | 422 |  |  | $ | 63 |  |  | $ | (114) |  |  | $ | 1 |  |  | $ | 372 |
(a) Includes intersegment revenues and costs associated with the internal transfer of power, which is based on average annualized market prices and results in higher revenues in Generation and higher cost of operations in Retail that are eliminated in consolidation |  |  |  |  |  |  |  |  |  |
(b) Operating revenues include intersegment sales and net derivative gains and losses of: |  | $ | 1 |  |  | $ | 513 |  |  | $ | 8 |  |  | $ | — |  |  | $ | 522 |
|  | Three months ended September 30, 2018(a) |  |  |  |  |  |  |  |
|  | Retail |  | Generation |  | Corporate |  | Eliminations |  | Total
|  | (In millions) |  |  |  |  |  |  |  |
Operating revenues(b) |  | $ | 2,203 |  |  | $ | 1,478 |  |  | $ | 1 |  |  | $ | (722) |  |  | $ | 2,960 |
Depreciation and amortization |  | 30 |  |  | 60 |  |  | 7 |  |  | 2 |  |  | 99 |
Reorganization costs |  | 6 |  |  | 3 |  |  | 18 |  |  | — |  |  | 27 |
Equity in earnings of unconsolidated affiliates |  | — |  |  | 20 |  |  | 3 |  |  | (3) |  |  | 20 |
Loss on debt extinguishment, net |  | — |  |  | — |  |  | (19) |  |  | — |  |  | (19) |
(Loss)/income from continuing operations before income taxes |  | (128) |  |  | 575 |  |  | (145) |  |  | (7) |  |  | 295 |
(Loss)/income from continuing operations |  | (128) |  |  | 574 |  |  | (152) |  |  | (7) |  |  | 287 |
Loss from discontinued operations, net of tax |  | — |  |  | — |  |  | (336) |  |  | — |  |  | (336) |
Net (loss)/income |  | (128) |  |  | 574 |  |  | (488) |  |  | (7) |  |  | (49) |
Net (loss)/income attributable to NRG Energy, Inc. |  | $ | (128) |  |  | $ | 559 |  |  | $ | (498) |  |  | $ | (5) |  |  | $ | (72) |
(a) Includes intersegment revenues and costs associated with our internal transfer of power, which is based on average annualized market prices and results in higher revenues in Generation and higher cost of operations in Retail that are eliminated in consolidation |  |  |  |  |  |  |  |  |  |
(b) Operating revenues include intersegment sales and net derivative gains and losses of: |  | $ | 1 |  |  | $ | 739 |  |  | $ | (18) |  |  | $ | — |  |  | $ | 722 |
| Nine months ended September 30, 2019 (a) |  |  |  |  |  |  |  |
| Retail |  | Generation |  | Corporate |  | Eliminations |  | Total
| (In millions) |  |  |  |  |  |  |  |
Operating revenues(b) | $ | 5,899 |  |  | $ | 3,164 |  |  | $ | — |  |  | $ | (1,437) |  |  | $ | 7,626 |
Depreciation and amortization | 100 |  |  | 138 |  |  | 23 |  |  | — |  |  | 261 |
Impairment losses | 1 |  |  | — |  |  | — |  |  | — |  |  | 1 |
Reorganization costs | 4 |  |  | 1 |  |  | 11 |  |  | — |  |  | 16 |
(Loss)/gain on sale of assets | (1) |  |  | 2 |  |  | 1 |  |  | — |  |  | 2 |
Equity in earnings of unconsolidated affiliates | — |  |  | 8 |  |  | — |  |  | — |  |  | 8 |
Loss on debt extinguishment, net | — |  |  | — |  |  | (47) |  |  | — |  |  | (47) |
Income/(loss) from continuing operations before income taxes | 253 |  |  | 795 |  |  | (382) |  |  | — |  |  | 666 |
Income/(loss) from continuing operations | 252 |  |  | 794 |  |  | (389) |  |  | — |  |  | 657 |
Income from discontinued operations, net of tax | — |  |  | — |  |  | 399 |  |  | — |  |  | 399 |
Net income | 252 |  |  | 794 |  |  | 10 |  |  | — |  |  | 1,056 |
Net income attributable to NRG Energy, Inc. common stockholders | $ | 251 |  |  | $ | 794 |  |  | $ | 10 |  |  | $ | — |  |  | $ | 1,055 |
(a) Includes intersegment revenues and costs associated with our internal transfer of power, which is based on average annualized market prices and results in higher revenues in Generation and higher cost of operations in Retail that are eliminated in consolidation |  |  |  |  |  |  |  |  |
(b) Operating revenues include inter-segment sales and net derivative gains and losses of: | $ | 6 |  |  | $ | 1,375 |  |  | $ | 56 |  |  | $ | — |  |  | $ | 1,437 |
| Nine months ended September 30, 2018 (a) |  |  |  |  |  |  |  |
| Retail |  | Generation |  | Corporate |  | Eliminations |  | Total
| (In millions) |  |  |  |  |  |  |  |
Operating revenues(b) | $ | 5,497 |  |  | $ | 2,916 |  |  | $ | — |  |  | $ | (927) |  |  | $ | 7,486 |
Depreciation and amortization | 86 |  |  | 220 |  |  | 25 |  |  | — |  |  | 331 |
Impairment losses | — |  |  | 74 |  |  | — |  |  | — |  |  | 74 |
Reorganization costs | 10 |  |  | 10 |  |  | 50 |  |  | — |  |  | 70 |
Gain on sale of assets | — |  |  | 1 |  |  | 29 |  |  | — |  |  | 30 |
Equity in earnings of unconsolidated affiliates | — |  |  | 27 |  |  | 4 |  |  | (5) |  |  | 26 |
Income/(loss) from continuing operations before income taxes | 732 |  |  | 256 |  |  | (412) |  |  | (4) |  |  | 572 |
Income/(loss) from continuing operations | 732 |  |  | 255 |  |  | (430) |  |  | (4) |  |  | 553 |
Loss from discontinued operations, net of tax | — |  |  | — |  |  | (272) |  |  | — |  |  | (272) |
Net income/(loss) | 732 |  |  | 255 |  |  | (702) |  |  | (4) |  |  | 281 |
Net income/(loss) attributable to NRG Energy, Inc. common stockholders | $ | 731 |  |  | $ | 246 |  |  | $ | (697) |  |  | $ | — |  |  | $ | 280 |
(a) Includes intersegment revenues and costs associated with our internal transfer of power, which is based on average annualized market prices and results in higher revenues in Generation and higher cost of operations in Retail that are eliminated in consolidation |  |  |  |  |  |  |  |  |
(b) Operating revenues include inter-segment sales and net derivative gains and losses of: | $ | 7 |  |  | $ | 944 |  |  | $ | (24) |  |  | $ | — |  |  | $ | 927 |

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- Definition The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -URI http://asc.fasb.org/topic&trid=2134510 + Details
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