Jointly-owned Plant (Tables)

12 Months Ended

Dec. 31, 2016

Jointly-owned Plant [Abstract]

Schedule of Jointly Owned Utility Plants [Table Text Block]

As of December 31, 2016, PGE had the following investments in jointly-owned plant (dollars in millions):

	PGE Share		In-service Date			Plant In-service		Accumulated Depreciation*		Construction Work In Progress
Boardman	90.00	%	1980			$	514	$	400	$	—
Colstrip	20.00		1986			528		342		9
Pelton/Round Butte	66.67		1958	/	1964	255		63		5
Total						$	1,297	$	805	$	14

* Excludes AROs and accumulated asset retirement removal costs.