Long term debt (Tables)

12 Months Ended

Dec. 31, 2013

Long-term Debt, Unclassified [Abstract]

Schedule of Long-term Debt Instruments [Table Text Block]

Long-term debt consists of the following (in millions):

	As of December 31,
	2013			2012
First Mortgage Bonds, rates range from 3.46% to 9.31%, with a weighted average rate of 5.62% in 2013 and 5.84% in 2012, due at various dates through 2048	$	1,795		$	1,515
Pollution Control Revenue Bonds, 5% rate, due 2033	148			142
Pollution Control Revenue Bonds owned by PGE	(27		)	(21		)
Total long-term debt	1,916			1,636
Less: current portion of long-term debt	—			(100		)
Long-term debt, net of current portion	$	1,916		$	1,536

Schedule of Maturities of Long-term Debt [Table Text Block]

As of December 31, 2013, the future minimum principal payments on long-term debt are as follows (in millions):

Years ending December 31:
2015	$	70
2016	67
2017	58
2018	75
Thereafter	1,646
	$	1,916