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Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2012

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

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

	Years Ended December 31,
	2012				2011				2010
Numerator (in millions):
Net income attributable to Portland General Electric Company common shareholders	$	141			$	147			$	125
Denominator (in thousands):
Weighted average common shares outstanding—basic	75,498				75,333				75,275
Dilutive effect of unvested restricted stock units and employee stock purchase plan shares	149				17				16
Weighted average common shares outstanding—diluted	75,647				75,350				75,291
Earnings per share—basic and diluted	$	1.87			$	1.95			$	1.66

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- Definition

Tabular disclosure of an entity's basic and diluted earnings per share calculations.

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No definition available.

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