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Segment Reporting (Details) $ in Millions | 1 Months Ended | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Dec. 31, 2017 USD ($) MW | Dec. 31, 2017 USD ($) MW | Sep. 30, 2017 USD ($) | Jun. 30, 2017 USD ($) | Mar. 31, 2017 USD ($) | Dec. 31, 2016 USD ($) | Sep. 30, 2016 USD ($) | Jun. 30, 2016 USD ($) | Mar. 31, 2016 USD ($) | Dec. 31, 2015 USD ($) | Dec. 31, 2017 USD ($) MW | Dec. 31, 2016 USD ($) | Dec. 31, 2015 USD ($)
Segment Reporting Information |  |  |  |  |  |  |  |  |  |  |  |  |
Generation capacity (in MW) | MW | 30,000 | 30,000 |  |  |  |  |  |  |  |  | 30,000 |  |
Income Statement |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues |  | $ 2,497 | $ 3,049 | $ 2,701 | $ 2,382 | $ 2,184 | $ 3,421 | $ 2,248 | $ 2,659 |  | $ 10,629 | $ 10,512 | $ 12,328
Operating expenses |  |  |  |  |  |  |  |  |  |  | 8,487 | 8,396 | 10,228
Depreciation and amortization |  |  |  |  |  |  |  |  |  |  | 1,056 | 1,172 | 1,351
Impairment losses |  |  |  |  |  |  |  |  |  |  | 1,709 | 702 | 4,860
Development costs |  |  |  |  |  |  |  |  |  |  | 67 | 89 | 154
Total operating costs and expenses |  |  |  |  |  |  |  |  |  |  | 11,319 | 10,359 | 16,593
Other income - affiliate | $ 84 |  |  |  |  |  |  |  |  |  | 87 | 193 | 193
Gain/(loss) on sale of assets |  |  |  |  |  |  |  |  |  |  | 16 | (80) | 0
Gain on postretirement benefits curtailment |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 21
Operating (Loss)/Income |  | (1,345) | 376 | 343 | 39 | (658) | 429 | 164 | 331 |  | (587) | 266 | (4,051)
Equity in (losses)/earnings of unconsolidated affiliates |  |  |  |  |  |  |  |  |  |  | 31 | 27 | 36
Impairment losses on investments |  |  |  |  |  |  |  |  |  | $ (56) | (79) | (268) | (56)
Other income, net |  |  |  |  |  |  |  |  |  |  | 38 | 34 | 26
Loss on sale of equity method investment |  |  |  |  |  |  |  |  |  |  | 0 | 0 | (14)
Loss on debt extinguishment |  |  |  |  |  |  |  |  |  |  | (53) | (142) | 10
Interest expense |  |  |  |  |  |  |  |  |  |  | (890) | (895) | (937)
Loss from Continuing Operations Before Income Taxes |  |  |  |  |  |  |  |  |  |  | (1,540) | (978) | (4,986)
Income tax expense |  |  |  |  |  |  |  |  |  |  | 8 | 5 | 1,345
Net Loss from Continuing Operations |  | (1,667) | 190 | 99 | (170) | (891) | 128 | (163) | (57) |  | (1,548) | (983) | (6,331)
(Loss)/income from discontinued operations, net of income tax |  | 13 | (27) | (741) | (34) | (164) | 265 | (113) | 104 |  | (789) | 92 | (105)
Net Loss |  | (1,655) | 163 | (642) | (203) | (1,055) | 393 | (276) | 47 |  | (2,337) | (891) | (6,436)
Less: Net income/(loss) attributable to noncontrolling interests and redeemable noncontrolling interests |  | (120) | (8) | (16) | (40) | (68) | (9) | (5) | (35) |  | (184) | (117) | (54)
Net Loss Attributable to NRG Energy, Inc. |  | (1,535) | 171 | (626) | $ (163) | (987) | $ 402 | $ (271) | $ 82 |  | (2,153) | (774) | (6,382)
Balance sheet |  |  |  |  |  |  |  |  |  |  |  |  |
Equity investments in affiliates | 1,038 | 1,038 |  |  |  | 1,120 |  |  |  |  | 1,038 | 1,120 |
Capital expenditures | 1,127 | 1,127 |  |  |  | 997 |  |  |  |  | 1,127 | 997 |
Goodwill | 539 | 539 |  |  |  | 662 |  |  |  |  | 539 | 662 |
Total Assets | 23,318 | 23,318 |  |  |  | 30,682 |  |  |  |  | 23,318 | 30,682 |
Generation |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement |  |  |  |  |  |  |  |  |  |  |  |  |
Other income - affiliate |  |  |  |  |  |  |  |  |  |  | 0 |  |
Retail |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement |  |  |  |  |  |  |  |  |  |  |  |  |
Other income - affiliate |  |  |  |  |  |  |  |  |  |  | 0 |  |
Renewables |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement |  |  |  |  |  |  |  |  |  |  |  |  |
Impairment losses |  | 15 | $ 14 | $ 22 |  |  |  |  |  |  |  |  |
Other income - affiliate |  |  |  |  |  |  |  |  |  |  | 0 |  |
NRG Yield |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement |  |  |  |  |  |  |  |  |  |  |  |  |
Other income - affiliate |  |  |  |  |  |  |  |  |  |  | 0 |  |
Corporate |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement |  |  |  |  |  |  |  |  |  |  |  |  |
Other income - affiliate |  |  |  |  |  |  |  |  |  |  | 87 |  |
Operating Segments | Generation |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues |  |  |  |  |  |  |  |  |  |  | 3,773 | 3,833 | 5,179
Operating expenses |  |  |  |  |  |  |  |  |  |  | 3,300 | 3,545 | 4,198
Depreciation and amortization |  |  |  |  |  |  |  |  |  |  | 377 | 516 | 693
Impairment losses |  |  |  |  |  |  |  |  |  |  | 1,504 | 430 | 4,655
Development costs |  |  |  |  |  |  |  |  |  |  | 13 | 15 | 26
Total operating costs and expenses |  |  |  |  |  |  |  |  |  |  | 5,194 | 4,506 | 9,572
Other income - affiliate |  |  |  |  |  |  |  |  |  |  |  | 0 | 0
Gain/(loss) on sale of assets |  |  |  |  |  |  |  |  |  |  | 20 | 0 |
Gain on postretirement benefits curtailment |  |  |  |  |  |  |  |  |  |  |  |  | 21
Operating (Loss)/Income |  |  |  |  |  |  |  |  |  |  | (1,401) | (673) | (4,372)
Equity in (losses)/earnings of unconsolidated affiliates |  |  |  |  |  |  |  |  |  |  | (14) | (5) | 10
Impairment losses on investments |  |  |  |  |  |  |  |  |  |  | (74) | (142) | (14)
Other income, net |  |  |  |  |  |  |  |  |  |  | 22 | 21 | 18
Loss on sale of equity method investment |  |  |  |  |  |  |  |  |  |  |  |  | 0
Loss on debt extinguishment |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Interest expense |  |  |  |  |  |  |  |  |  |  | (29) | (26) | (25)
Loss from Continuing Operations Before Income Taxes |  |  |  |  |  |  |  |  |  |  | (1,496) | (825) | (4,383)
Income tax expense |  |  |  |  |  |  |  |  |  |  | 2 | (1) | 0
Net Loss from Continuing Operations |  |  |  |  |  |  |  |  |  |  | (1,498) | (824) | (4,383)
(Loss)/income from discontinued operations, net of income tax |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Net Loss |  |  |  |  |  |  |  |  |  |  | (1,498) | (824) | (4,383)
Less: Net income/(loss) attributable to noncontrolling interests and redeemable noncontrolling interests |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Net Loss Attributable to NRG Energy, Inc. |  |  |  |  |  |  |  |  |  |  | (1,498) | (824) | (4,383)
Balance sheet |  |  |  |  |  |  |  |  |  |  |  |  |
Equity investments in affiliates | 179 | 179 |  |  |  | 204 |  |  |  |  | 179 | 204 |
Capital expenditures | 481 | 481 |  |  |  | 522 |  |  |  |  | 481 | 522 |
Goodwill | 165 | 165 |  |  |  | 276 |  |  |  |  | 165 | 276 |
Total Assets | 7,209 | 7,209 |  |  |  | 13,514 |  |  |  |  | 7,209 | 13,514 |
Operating Segments | Retail |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues |  |  |  |  |  |  |  |  |  |  | 6,380 | 6,335 | 6,913
Operating expenses |  |  |  |  |  |  |  |  |  |  | 5,372 | 5,164 | 6,138
Depreciation and amortization |  |  |  |  |  |  |  |  |  |  | 117 | 111 | 132
Impairment losses |  |  |  |  |  |  |  |  |  |  | 7 | 1 | 36
Development costs |  |  |  |  |  |  |  |  |  |  | 2 | 4 | 4
Total operating costs and expenses |  |  |  |  |  |  |  |  |  |  | 5,498 | 5,280 | 6,310
Other income - affiliate |  |  |  |  |  |  |  |  |  |  |  | 0 | 0
Gain/(loss) on sale of assets |  |  |  |  |  |  |  |  |  |  | 0 | (1) |
Gain on postretirement benefits curtailment |  |  |  |  |  |  |  |  |  |  |  |  | 0
Operating (Loss)/Income |  |  |  |  |  |  |  |  |  |  | 882 | 1,054 | 603
Equity in (losses)/earnings of unconsolidated affiliates |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Impairment losses on investments |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Other income, net |  |  |  |  |  |  |  |  |  |  | 1 | (6) | (4)
Loss on sale of equity method investment |  |  |  |  |  |  |  |  |  |  |  |  | 0
Loss on debt extinguishment |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Interest expense |  |  |  |  |  |  |  |  |  |  | (6) | 6 | 2
Loss from Continuing Operations Before Income Taxes |  |  |  |  |  |  |  |  |  |  | 877 | 1,054 | 601
Income tax expense |  |  |  |  |  |  |  |  |  |  | (9) | 1 | 1
Net Loss from Continuing Operations |  |  |  |  |  |  |  |  |  |  | 886 | 1,053 | 600
(Loss)/income from discontinued operations, net of income tax |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Net Loss |  |  |  |  |  |  |  |  |  |  | 886 | 1,053 | 600
Less: Net income/(loss) attributable to noncontrolling interests and redeemable noncontrolling interests |  |  |  |  |  |  |  |  |  |  | 2 | (2) | 0
Net Loss Attributable to NRG Energy, Inc. |  |  |  |  |  |  |  |  |  |  | 884 | 1,055 | 600
Balance sheet |  |  |  |  |  |  |  |  |  |  |  |  |
Equity investments in affiliates | 0 | 0 |  |  |  | 0 |  |  |  |  | 0 | 0 |
Capital expenditures | 82 | 82 |  |  |  | 12 |  |  |  |  | 82 | 12 |
Goodwill | 374 | 374 |  |  |  | 374 |  |  |  |  | 374 | 374 |
Total Assets | 2,630 | 2,630 |  |  |  | 2,332 |  |  |  |  | 2,630 | 2,332 |
Operating Segments | Renewables |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues |  |  |  |  |  |  |  |  |  |  | 424 | 406 | 383
Operating expenses |  |  |  |  |  |  |  |  |  |  | 211 | 217 | 187
Depreciation and amortization |  |  |  |  |  |  |  |  |  |  | 196 | 185 | 176
Impairment losses |  |  |  |  |  |  |  |  |  |  | 154 | 54 | 13
Development costs |  |  |  |  |  |  |  |  |  |  | 45 | 40 | 61
Total operating costs and expenses |  |  |  |  |  |  |  |  |  |  | 606 | 496 | 437
Other income - affiliate |  |  |  |  |  |  |  |  |  |  |  | 0 | 0
Gain/(loss) on sale of assets |  |  |  |  |  |  |  |  |  |  | (5) | 0 |
Gain on postretirement benefits curtailment |  |  |  |  |  |  |  |  |  |  |  |  | 0
Operating (Loss)/Income |  |  |  |  |  |  |  |  |  |  | (187) | (90) | (54)
Equity in (losses)/earnings of unconsolidated affiliates |  |  |  |  |  |  |  |  |  |  | 0 | (58) | (7)
Impairment losses on investments |  |  |  |  |  |  |  |  |  |  | 0 | (105) | 0
Other income, net |  |  |  |  |  |  |  |  |  |  | 0 | 1 | 3
Loss on sale of equity method investment |  |  |  |  |  |  |  |  |  |  |  |  | 0
Loss on debt extinguishment |  |  |  |  |  |  |  |  |  |  | (1) | 0 | 0
Interest expense |  |  |  |  |  |  |  |  |  |  | (98) | (98) | (79)
Loss from Continuing Operations Before Income Taxes |  |  |  |  |  |  |  |  |  |  | (286) | (350) | (137)
Income tax expense |  |  |  |  |  |  |  |  |  |  | (20) | (20) | (18)
Net Loss from Continuing Operations |  |  |  |  |  |  |  |  |  |  | (266) | (330) | (119)
(Loss)/income from discontinued operations, net of income tax |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Net Loss |  |  |  |  |  |  |  |  |  |  | (266) | (330) | (119)
Less: Net income/(loss) attributable to noncontrolling interests and redeemable noncontrolling interests |  |  |  |  |  |  |  |  |  |  | (103) | (13) | 6
Net Loss Attributable to NRG Energy, Inc. |  |  |  |  |  |  |  |  |  |  | (163) | (317) | (125)
Balance sheet |  |  |  |  |  |  |  |  |  |  |  |  |
Equity investments in affiliates | 4 | 4 |  |  |  | 26 |  |  |  |  | 4 | 26 |
Capital expenditures | 521 | 521 |  |  |  | 330 |  |  |  |  | 521 | 330 |
Goodwill | 0 | 0 |  |  |  | 12 |  |  |  |  | 0 | 12 |
Total Assets | 5,129 | 5,129 |  |  |  | 4,921 |  |  |  |  | 5,129 | 4,921 |
Operating Segments | NRG Yield |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues |  |  |  |  |  |  |  |  |  |  | 1,009 | 1,035 | 968
Operating expenses |  |  |  |  |  |  |  |  |  |  | 348 | 325 | 338
Depreciation and amortization |  |  |  |  |  |  |  |  |  |  | 334 | 303 | 303
Impairment losses |  |  |  |  |  |  |  |  |  |  | 44 | 185 | 1
Development costs |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Total operating costs and expenses |  |  |  |  |  |  |  |  |  |  | 726 | 813 | 642
Other income - affiliate |  |  |  |  |  |  |  |  |  |  |  | 0 | 0
Gain/(loss) on sale of assets |  |  |  |  |  |  |  |  |  |  | 0 | 0 |
Gain on postretirement benefits curtailment |  |  |  |  |  |  |  |  |  |  |  |  | 0
Operating (Loss)/Income |  |  |  |  |  |  |  |  |  |  | 283 | 222 | 326
Equity in (losses)/earnings of unconsolidated affiliates |  |  |  |  |  |  |  |  |  |  | 71 | 60 | 31
Impairment losses on investments |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Other income, net |  |  |  |  |  |  |  |  |  |  | 4 | 3 | 3
Loss on sale of equity method investment |  |  |  |  |  |  |  |  |  |  |  |  | 0
Loss on debt extinguishment |  |  |  |  |  |  |  |  |  |  | (3) | 0 | (9)
Interest expense |  |  |  |  |  |  |  |  |  |  | (306) | (284) | (267)
Loss from Continuing Operations Before Income Taxes |  |  |  |  |  |  |  |  |  |  | 49 | 1 | 84
Income tax expense |  |  |  |  |  |  |  |  |  |  | 72 | (1) | 12
Net Loss from Continuing Operations |  |  |  |  |  |  |  |  |  |  | (23) | 2 | 72
(Loss)/income from discontinued operations, net of income tax |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Net Loss |  |  |  |  |  |  |  |  |  |  | (23) | 2 | 72
Less: Net income/(loss) attributable to noncontrolling interests and redeemable noncontrolling interests |  |  |  |  |  |  |  |  |  |  | (87) | (54) | 19
Net Loss Attributable to NRG Energy, Inc. |  |  |  |  |  |  |  |  |  |  | 64 | 56 | 53
Balance sheet |  |  |  |  |  |  |  |  |  |  |  |  |
Equity investments in affiliates | 852 | 852 |  |  |  | 886 |  |  |  |  | 852 | 886 |
Capital expenditures | 31 | 31 |  |  |  | 23 |  |  |  |  | 31 | 23 |
Goodwill | 0 | 0 |  |  |  | 0 |  |  |  |  | 0 | 0 |
Total Assets | 8,283 | 8,283 |  |  |  | 8,962 |  |  |  |  | 8,283 | 8,962 |
Operating Segments | Corporate |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues |  |  |  |  |  |  |  |  |  |  | 14 | 77 | 38
Operating expenses |  |  |  |  |  |  |  |  |  |  | 220 | 323 | 502
Depreciation and amortization |  |  |  |  |  |  |  |  |  |  | 32 | 57 | 47
Impairment losses |  |  |  |  |  |  |  |  |  |  | 0 | 32 | 133
Development costs |  |  |  |  |  |  |  |  |  |  | 7 | 30 | 63
Total operating costs and expenses |  |  |  |  |  |  |  |  |  |  | 259 | 442 | 745
Other income - affiliate |  |  |  |  |  |  |  |  |  |  |  | 193 | 193
Gain/(loss) on sale of assets |  |  |  |  |  |  |  |  |  |  | 1 | (79) |
Gain on postretirement benefits curtailment |  |  |  |  |  |  |  |  |  |  |  |  | 0
Operating (Loss)/Income |  |  |  |  |  |  |  |  |  |  | (157) | (251) | (514)
Equity in (losses)/earnings of unconsolidated affiliates |  |  |  |  |  |  |  |  |  |  | 6 | 13 | 0
Impairment losses on investments |  |  |  |  |  |  |  |  |  |  | (5) | (21) | (42)
Other income, net |  |  |  |  |  |  |  |  |  |  | 11 | 19 | 13
Loss on sale of equity method investment |  |  |  |  |  |  |  |  |  |  |  |  | (14)
Loss on debt extinguishment |  |  |  |  |  |  |  |  |  |  | (49) | (142) | 19
Interest expense |  |  |  |  |  |  |  |  |  |  | (451) | (495) | (574)
Loss from Continuing Operations Before Income Taxes |  |  |  |  |  |  |  |  |  |  | (645) | (877) | (1,112)
Income tax expense |  |  |  |  |  |  |  |  |  |  | (37) | 26 | 1,350
Net Loss from Continuing Operations |  |  |  |  |  |  |  |  |  |  | (608) | (903) | (2,462)
(Loss)/income from discontinued operations, net of income tax |  |  |  |  |  |  |  |  |  |  | (789) | 92 | (105)
Net Loss |  |  |  |  |  |  |  |  |  |  | (1,397) | (811) | (2,567)
Less: Net income/(loss) attributable to noncontrolling interests and redeemable noncontrolling interests |  |  |  |  |  |  |  |  |  |  | (4) | 18 | (37)
Net Loss Attributable to NRG Energy, Inc. |  |  |  |  |  |  |  |  |  |  | (1,393) | (829) | (2,530)
Balance sheet |  |  |  |  |  |  |  |  |  |  |  |  |
Equity investments in affiliates | 3 | 3 |  |  |  | 4 |  |  |  |  | 3 | 4 |
Capital expenditures | 12 | 12 |  |  |  | 110 |  |  |  |  | 12 | 110 |
Goodwill | 0 | 0 |  |  |  | 0 |  |  |  |  | 0 | 0 |
Total Assets | 8,919 | 8,919 |  |  |  | 11,891 |  |  |  |  | 8,919 | 11,891 |
Eliminations |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues |  |  |  |  |  |  |  |  |  |  | (971) | (1,174) | (1,153)
Operating expenses |  |  |  |  |  |  |  |  |  |  | (964) | (1,178) | (1,135)
Depreciation and amortization |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Impairment losses |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 22
Development costs |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Total operating costs and expenses |  |  |  |  |  |  |  |  |  |  | (964) | (1,178) | (1,113)
Other income - affiliate |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Gain/(loss) on sale of assets |  |  |  |  |  |  |  |  |  |  | 0 |  |
Gain on postretirement benefits curtailment |  |  |  |  |  |  |  |  |  |  |  |  | 0
Operating (Loss)/Income |  |  |  |  |  |  |  |  |  |  | (7) | 4 | (40)
Equity in (losses)/earnings of unconsolidated affiliates |  |  |  |  |  |  |  |  |  |  | (32) | 17 | 2
Impairment losses on investments |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Other income, net |  |  |  |  |  |  |  |  |  |  | 0 | (4) | (7)
Loss on sale of equity method investment |  |  |  |  |  |  |  |  |  |  |  |  | 0
Loss on debt extinguishment |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Interest expense |  |  |  |  |  |  |  |  |  |  | 0 | 2 | 6
Loss from Continuing Operations Before Income Taxes |  |  |  |  |  |  |  |  |  |  | (39) | 19 | (39)
Income tax expense |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Net Loss from Continuing Operations |  |  |  |  |  |  |  |  |  |  | (39) | 19 | (39)
(Loss)/income from discontinued operations, net of income tax |  |  |  |  |  |  |  |  |  |  | 0 |  | 0
Net Loss |  |  |  |  |  |  |  |  |  |  | (39) | 19 | (39)
Less: Net income/(loss) attributable to noncontrolling interests and redeemable noncontrolling interests |  |  |  |  |  |  |  |  |  |  | 8 | (66) | (42)
Net Loss Attributable to NRG Energy, Inc. |  |  |  |  |  |  |  |  |  |  | (47) | 85 | 3
Balance sheet |  |  |  |  |  |  |  |  |  |  |  |  |
Equity investments in affiliates | 0 | 0 |  |  |  | 0 |  |  |  |  | 0 | 0 |
Capital expenditures | 0 | 0 |  |  |  | 0 |  |  |  |  | 0 | 0 |
Goodwill | 0 | 0 |  |  |  | 0 |  |  |  |  | 0 | 0 |
Total Assets | $ (8,852) | $ (8,852) |  |  |  | $ (10,938) |  |  |  |  | (8,852) | (10,938) |
Eliminations | Generation |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues |  |  |  |  |  |  |  |  |  |  | (910) | (1,033) | (896)
Eliminations | Retail |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues |  |  |  |  |  |  |  |  |  |  | (5) | (4) | (6)
Eliminations | Renewables |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues |  |  |  |  |  |  |  |  |  |  | (31) | (24) | (31)
Eliminations | NRG Yield |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues |  |  |  |  |  |  |  |  |  |  | 0 | (8) | (29)
Eliminations | Corporate |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues |  |  |  |  |  |  |  |  |  |  | $ (25) | $ (105) | $ (191)
NRG Yield |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information |  |  |  |  |  |  |  |  |  |  |  |  |
Generation capacity (in MW) | MW | 555 | 555 |  |  |  |  |  |  |  |  | 555 |  |
Consideration paid for acquisitions |  |  |  |  |  |  |  |  |  |  | $ 245 |  |

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