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Variable Interest Entities, or VIEs (Details) $ in Millions |  | 3 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | --- | ---
Nov. 02, 2016 | Jun. 30, 2018 USD ($) facility MW | Jun. 30, 2018 USD ($) facility project MW | Jun. 29, 2018 | Dec. 31, 2017 USD ($)
Investments Accounted for by the Equity Method |  |  |  |  |
Equity investments in affiliates |  | $ 1,055 | $ 1,055 |  | $ 1,038
Generation capacity (in MW) | MW |  | 30,000 | 30,000 |  |
Economic interest in equity method investments (as a percent) |  |  |  | 3.70% |
Loss on deconsolidation and subsequent recognition |  |  | $ 22 |  |
Deficit restoration obligation |  | $ 83 | 83 |  |
Current assets |  | 191 | 191 |  | 118
Net property, plant and equipment |  | 2,709 | 2,709 |  | 2,337
Other long-term assets |  | 660 | 660 |  | 658
Total assets |  | 3,560 | 3,560 |  | 3,113
Current liabilities |  | 119 | 119 |  | 96
Long-term debt |  | 814 | 814 |  | 661
Other long-term liabilities |  | 211 | 211 |  | 209
Total liabilities |  | 1,144 | 1,144 |  | 966
Redeemable noncontrolling interest |  | 69 | 69 |  | 78
Noncontrolling interest |  | 660 | 660 |  | 507
Net assets less noncontrolling interest |  | 1,687 | 1,687 |  | $ 1,562
GenConn Energy LLC |  |  |  |  |
Investments Accounted for by the Equity Method |  |  |  |  |
Equity investments in affiliates |  | $ 100 | $ 100 |  |
Power generation facilities | facility |  | 2 | 2 |  |
Generation capacity (in MW) | MW |  | 190 | 190 |  |
Economic interest in equity method investments (as a percent) |  | 50.00% | 50.00% |  |
Ivampah Mater Holdings LLC |  |  |  |  |
Investments Accounted for by the Equity Method |  |  |  |  |
Equity investments in affiliates |  | $ 57 | $ 57 |  |
Generation capacity (in MW) | MW |  | 392 | 392 |  |
Economic interest in equity method investments (as a percent) |  | 54.60% | 54.60% |  |
Number of solar electric generating projects | project |  |  | 3 |  |
Release of reserve funds |  | $ (95) |  |  |
Deconsolidation reduced the Company's assets |  |  | $ 1,300 |  |
Deconsolidation reduced the Company's liabilities |  |  | 1,200 |  |
Sun Edison Utility-Scale Solar and Wind | Mechanically-complete Solar Assets |  |  |  |  |
Investments Accounted for by the Equity Method |  |  |  |  |
PPA period | 20 years |  |  |  |
Equity investments in affiliates |  | $ 338 | $ 338 |  |

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