Basis of Presentation and Summary of Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2016

Schedule of components of restricted cash

The table below represents the components of our restricted cash as of March 31, 2016 and December 31, 2015 (in millions):



	March 31, 2016						December 31, 2015
	Current		Non-Current		Total		Current		Non-Current		Total
Debt service	$	29	$	7	$	36	$	28	$	8	$	36
Construction/major maintenance	45		7		52		50		2		52
Security/project/insurance	91		1		92		136		—		136
Other	2		2		4		2		2		4
Total	$	167	$	17	$	184	$	216	$	12	$	228

Schedule of property, plant and equipment

Property, Plant and Equipment, Net — At March 31, 2016 and December 31, 2015, the components of property, plant and equipment are stated at cost less accumulated depreciation as follows (in millions):



	March 31, 2016		December 31, 2015		Depreciable Lives
Buildings, machinery and equipment	$	16,685	$	16,294	3 – 46 Years
Geothermal properties	1,327		1,319		13 – 58 Years
Other	219		208		3 – 46 Years
	18,231		17,821
Less: Accumulated depreciation	5,491		5,377
	12,740		12,444
Land	121		120
Construction in progress	546		448
Property, plant and equipment, net	$	13,407	$	13,012