v3.8.0.1

Basis of Presentation and Summary of Significant Accounting Policies (Tables) | 9 Months Ended
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Sep. 30, 2017
Accounting Policies [Abstract] |
Schedule of New Accounting Pronouncements and Changes in Accounting Principles [Table Text Block] | The revised presentation of our derivative instruments is considered a change in accounting principle; thus, we retroactively applied the new accounting to our Consolidated Condensed Balance Sheet as of December 31, 2016 which did not result in a change in our total stockholder’s equity, results of operations or cash flows for any previously reported periods. See Notes 5, 6 and 7 for additional information on the assets and liabilities that are reflected on a net basis in our Consolidated Condensed Balance Sheets. The table below reflects the effect of the new accounting on previously reported financial information (in millions):
|  | As Previously Reported |  | Effect of Offsetting Adjustment |  | As Adjusted
Consolidated Condensed Balance Sheet as of December 31, 2016 |  |  |  |  |  |
Margin deposits and other prepaid expense |  | $ | 441 |  |  | $ | (77 | ) |  | $ | 364 |
Derivative assets, current |  | $ | 1,725 |  |  | $ | (1,504 | ) |  | $ | 221 |
Total current assets |  | $ | 4,432 |  |  | $ | (1,581 | ) |  | $ | 2,851 |
Long-term derivative assets |  | $ | 543 |  |  | $ | (243 | ) |  | $ | 300 |
Total assets |  | $ | 19,317 |  |  | $ | (1,824 | ) |  | $ | 17,493 |
Derivative liabilities, current |  | $ | 1,630 |  |  | $ | (1,492 | ) |  | $ | 138 |
Other current liabilities |  | $ | 528 |  |  | $ | (5 | ) |  | $ | 523 |
Total current liabilities |  | $ | 3,702 |  |  | $ | (1,497 | ) |  | $ | 2,205 |
Long-term derivative liabilities |  | $ | 476 |  |  | $ | (327 | ) |  | $ | 149 |
Total liabilities |  | $ | 15,978 |  |  | $ | (1,824 | ) |  | $ | 14,154 |
Consolidated Condensed Statement of Cash Flows for the Nine Months Ended September 30, 2016 |  |  |  |  |  |
Change in operating assets and liabilities, net of effects of acquisitions: |  |  |  |  |  |
Derivative instruments, net |  | $ | (71 | ) |  | $ | (83 | ) |  | $ | (154 | )
Other assets |  | $ | (75 | ) |  | $ | 76 |  |  | $ | 1 |
Accounts payable and accrued expenses |  | $ | 46 |  |  | $ | 7 |  |  | $ | 53 |
Net cash provided by operating activities |  | $ | 667 |  |  | $ | — |  |  | $ | 667 |
Schedule of components of restricted cash | The table below represents the components of our restricted cash as of September 30, 2017 and December 31, 2016 (in millions):
| September 30, 2017 |  | December 31, 2016
| Current |  | Non-Current |  | Total |  | Current |  | Non-Current |  | Total
Debt service | $ | 22 |  |  | $ | 7 |  |  | $ | 29 |  |  | $ | 11 |  |  | $ | 8 |  |  | $ | 19 |
Construction/major maintenance | 25 |  |  | 17 |  |  | 42 |  |  | 45 |  |  | 6 |  |  | 51 |
Security/project/insurance | 145 |  |  | — |  |  | 145 |  |  | 114 |  |  | — |  |  | 114 |
Other | 4 |  |  | 2 |  |  | 6 |  |  | 3 |  |  | 1 |  |  | 4 |
Total | $ | 196 |  |  | $ | 26 |  |  | $ | 222 |  |  | $ | 173 |  |  | $ | 15 |  |  | $ | 188 |
Schedule of property, plant and equipment | Property, Plant and Equipment, Net — At September 30, 2017 and December 31, 2016, the components of property, plant and equipment are stated at cost less accumulated depreciation as follows (in millions):
| September 30, 2017 |  | December 31, 2016 |  | Depreciable Lives
Buildings, machinery and equipment | $ | 16,512 |  |  | $ | 16,468 |  |  | 3 | – | 46 | Years
Geothermal properties | 1,480 |  |  | 1,377 |  |  | 13 | – | 58 | Years
Other | 235 |  |  | 259 |  |  | 3 | – | 46 | Years
| 18,227 |  |  | 18,104 |  |  |  |  |  |
Less: Accumulated depreciation | 6,265 |  |  | 5,865 |  |  |  |  |  |
| 11,962 |  |  | 12,239 |  |  |  |  |  |
Land | 117 |  |  | 116 |  |  |  |  |  |
Construction in progress | 754 |  |  | 658 |  |  |  |  |  |
Property, plant and equipment, net | $ | 12,833 |  |  | $ | 13,013 |  |  |  |  |  |
Schedule of Goodwill | Goodwill — We have not recorded any impairment losses associated with our goodwill. The change in goodwill by segment during the nine months ended September 30, 2017 was as follows (in millions):
| West |  | Texas |  | East |  | Total
Goodwill at December 31, 2016 | $ | 68 |  |  | $ | 31 |  |  | $ | 88 |  |  | $ | 187 |
Acquisition of North American Power | — |  |  | — |  |  | 49 |  |  | 49 |
Purchase price allocation adjustments(1) | (2 | ) |  | 1 |  |  | 8 |  |  | 7 |
Goodwill at September 30, 2017 | $ | 66 |  |  | $ | 32 |  |  | $ | 145 |  |  | $ | 243 |
____________
(1) | The purchase price allocation adjustment in the East segment represents adjustments of $17 million for North American Power and $(9) million for Calpine Solutions.

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