v3.3.1.900

Property, Plant and Equipment, Net (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Property, Plant and Equipment [Line Items] |  |  |
Buildings, machinery and equipment | $ 16,294 | $ 16,059 |
Geothermal properties | 1,319 | 1,294 |
Other | 208 | 203 |
Property, Plant and Equipment, Gross | 17,821 | 17,556 |
Less: Accumulated depreciation | 5,377 | 4,984 |
Property, Plant and Equipment, Gross, Less Accumulated Depreciation | 12,444 | 12,572 |
Land | 120 | 120 |
Construction in progress | 448 | 498 |
Property, plant and equipment, net | 13,012 | 13,190 |
Depreciation | 595 | 591 | $ 584
Interest Costs, Capitalized During Period | $ 15 | $ 19 | $ 38
Building, Machinery and Equipment, Gross [Member] | Minimum [Member] |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Property, Plant and Equipment, Estimated Useful Lives | 3 years |  |
Building, Machinery and Equipment, Gross [Member] | Maximum [Member] |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Property, Plant and Equipment, Estimated Useful Lives | 47 years |  |
Geothermal Properties, Gross [Member] | Minimum [Member] |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Property, Plant and Equipment, Estimated Useful Lives | 13 years |  |
Geothermal Properties, Gross [Member] | Maximum [Member] |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Property, Plant and Equipment, Estimated Useful Lives | 58 years |  |
Property, Plant and Equipment, Other Types [Member] | Minimum [Member] |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Property, Plant and Equipment, Estimated Useful Lives | 3 years |  |
Property, Plant and Equipment, Other Types [Member] | Maximum [Member] |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Property, Plant and Equipment, Estimated Useful Lives | 47 years |  |

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