Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2014

Earnings (Loss) Per Share Disclosure [Abstract]

Reconciliation of NRG's basic earnings per share to diluted earnings per share

The reconciliation of the Company's basic and diluted earnings per share is shown in the following table:

	Year ended December 31, 2014		Period from July 23, 2013 to December 31, 2013
(In millions, except per share data)
Basic and diluted earnings per share attributable to NRG Yield, Inc. Class A common stockholders
Net income attributable to NRG Yield, Inc.	$	16	$	13
Weighted average number of Class A common shares outstanding	28		23
Earnings per weighted average Class A common share — basic and diluted	$	0.59	$	0.57