Property, Plant and Equipment, Net (Tables)

12 Months Ended

Dec. 31, 2018

Property, Plant and Equipment, Net [Abstract]

Property, Plant and Equipment

As of December 31, 2018 and 2017, the components of property, plant and equipment are stated at cost less accumulated depreciation as follows (in millions):

	2018		2017		Depreciable Lives
Buildings, machinery and equipment	$	16,400	$	16,506	1.5 – 46 Years
Geothermal properties	1,501		1,494		13 – 58 Years
Other	286		236		3 – 46 Years
	18,187		18,236
Less: Accumulated depreciation	6,832		6,383
	11,355		11,853
Land	121		117
Construction in progress	966		754
Property, plant and equipment, net	$	12,442	$	12,724