Equity (Notes)

3 Months Ended

Mar. 31, 2012

Stockholders' Equity Note [Abstract]

Equity

EQUITY

The activity in equity during the three months ended March 31, 2012 and 2011 is as follows (dollars in millions):

	Portland General Electric Company Shareholders’ Equity
	Common Stock			Accumulated Other Comprehensive Loss			Retained Earnings			Noncontrolling Interests’ Equity
	Shares	Amount
Balances as of December 31, 2011	75,362,956	$	836	$	(6	)	$	833		$	3
Vesting of restricted and performance stock units	140,714	—		—			—			—
Issuance of shares pursuant to dividend reinvestment and direct stock purchase plan	910	—		—			—			—
Stock-based compensation	—	—		—			—			—
Dividends declared	—	—		—			(20		)	—
Noncontrolling interests’ capital distributions	—	—		—			—			—
Net income	—	—		—			49			—
Balances as of March 31, 2012	75,504,580	$	836	$	(6	)	$	862		$	3
Balances as of December 31, 2010	75,316,419	$	831	$	(5	)	$	766		$	7
Vesting of restricted stock units	9,184	—		—			—			—
Stock-based compensation	—	1		—			—			—
Dividends declared	—	—		—			(20		)	—
Noncontrolling interests’ capital distributions	—	—		—			—			(4		)
Net income	—	—		—			69			—
Balances as of March 31, 2011	75,325,603	$	832	$	(5	)	$	815		$	3