v3.19.2

Basis of Presentation and Summary of Significant Accounting Policies Property, Plant and Equipment, Net (Details) - USD ($) $ in Millions | 6 Months Ended |
--- | --- | ---
Jun. 30, 2019 | Dec. 31, 2018
Property, Plant and Equipment [Line Items] |  |
Buildings, machinery and equipment | $ 16,522 | $ 16,400
Geothermal properties | 1,509 | 1,501
Other | 269 | 286
Property, plant and equipment, gross | 18,300 | 18,187
Less: Accumulated depreciation | 6,860 | 6,832
Property, plant and equipment, gross, less accumulated depreciation, depletion and amortization | 11,440 | 11,355
Land | 128 | 121
Construction in progress | 483 | 966
Property, plant and equipment, net | $ 12,051 | $ 12,442
Minimum [Member] | Building, Machinery and Equipment, Gross [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Property, plant and equipment, estimated useful lives | 1 year 6 months |
Minimum [Member] | Geothermal Properties, Gross [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Property, plant and equipment, estimated useful lives | 13 years |
Minimum [Member] | Property, Plant and Equipment, Other Types [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Property, plant and equipment, estimated useful lives | 3 years |
Maximum [Member] | Building, Machinery and Equipment, Gross [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Property, plant and equipment, estimated useful lives | 50 years |
Maximum [Member] | Geothermal Properties, Gross [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Property, plant and equipment, estimated useful lives | 58 years |
Maximum [Member] | Property, Plant and Equipment, Other Types [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Property, plant and equipment, estimated useful lives | 50 years |

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- Definition Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. + References No definition available. + Details
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