Comprehensive Income (Tables)

9 Months Ended

Sep. 30, 2011

Comprehensive Income [Abstract]

Schedule of Comprehensive Income (Loss) [Table Text Block]

Comprehensive income is as follows (in millions):

	Three Months Ended September 30,					Nine Months Ended September 30,
	2011		2010			2011		2010
Net income	$	27	$	48		$	118	$	99
Other comprehensive income - Change in compensation retirement benefits liability and amortization, net of taxes	—		1			—		1
Comprehensive income	27		49			118		100
Less: comprehensive loss attributable to noncontrolling interests	—		(1		)	—		(1		)
Comprehensive income attributable to Portland General Electric Company	$	27	$	50		$	118	$	101