Basis of Presentation and Summary of Significant Accounting Policies (Tables)
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9 Months Ended |
Sep. 30, 2017 |
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| Accounting Policies [Abstract] |
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| 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 |
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| $ | (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 |
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| 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 |
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| 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 |
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| 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 |
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____________ | | (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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