Earnings Per Share (Notes)

9 Months Ended

Sep. 30, 2012

Earnings Per Share [Abstract]

EARNINGS PER SHARE

EARNINGS PER SHARE

Components of basic and diluted earnings per share were as follows:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2012		2011		2012		2011
Numerator (in millions):
Net income attributable to Portland General Electric Company common shareholders	$	38	$	27	$	113	$	118
Denominator (in thousands):
Weighted-average common shares outstanding—basic	75,528		75,342		75,486		75,329
Dilutive effect of unvested restricted stock units and  employee stock purchase plan shares	13		16		14		16
Weighted-average common shares outstanding—diluted	75,541		75,358		75,500		75,345
Earnings per share—basic and diluted	$	0.50	$	0.36	$	1.49	$	1.57

Unvested performance stock units and related dividend equivalent rights are not included in the computation of dilutive securities because vesting of these instruments is dependent upon three-year performance periods and the vesting criteria has not been met as of the end of the reporting period presented.

Basic and diluted earnings per share amounts are calculated based on actual amounts rather than the rounded amounts presented in the table above and on the condensed consolidated statements of income. Accordingly, calculations using the rounded amounts presented for net income and weighted average shares outstanding may yield results that vary from the earnings per share amounts presented in the table above.