Property, Plant and Equipment (Tables)

12 Months Ended

Dec. 31, 2016

Property, Plant and Equipment [Abstract]

NRG's major classes of property, plant and equipment

The Company's major classes of property, plant, and equipment were as follows:

	As of December 31,						Depreciable
	2016			2015			Lives
	(In millions)
Facilities and equipment	$	21,445		$	21,633		1-40 Years
Land and improvements	1,026			1,226
Nuclear fuel	601			545			5 Years
Office furnishings and equipment	457			462			2-10 Years
Construction in progress	697			627
Total property, plant, and equipment	24,226			24,493
Accumulated depreciation	(6,314		)	(5,761		)
Net property, plant, and equipment	$	17,912		$	18,732