Price Risk Management (Tables)

9 Months Ended

Sep. 30, 2015

Derivative [Line Items]

Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]

PGE’s Assets and Liabilities from price risk management activities consist of the following (in millions):

	September 30, 2015			December 31, 2014
Current assets:
Commodity contracts:
Electricity	$	5		$	4
Natural gas	2			2
Total current derivative assets	7		(1)	6		(1)
Noncurrent assets:
Commodity contracts:
Electricity	—			1
Total noncurrent derivative assets	—		(2)	1		(2)
Total derivative assets not designated as hedging instruments	$	7		$	7
Total derivative assets	$	7		$	7
Current liabilities:
Commodity contracts:
Electricity	$	38		$	54
Natural gas	77			52
Total current derivative liabilities	115			106
Noncurrent liabilities:
Commodity contracts:
Electricity	110			58
Natural gas	74			64
Total noncurrent derivative liabilities	184			122
Total derivative liabilities not designated as hedging instruments	$	299		$	228
Total derivative liabilities	$	299		$	228

(1) Included in Other current assets on the condensed consolidated balance sheets.

(2) Included in Other noncurrent assets on the condensed consolidated balance sheets.

Schedule of Derivative Instruments [Table Text Block]

PGE’s net volumes related to its Assets and Liabilities from price risk management activities resulting from its derivative transactions, which are expected to deliver or settle through 2035, were as follows (in millions):

	September 30, 2015			December 31, 2014
Commodity contracts:
Electricity	13		MWh	16		MWh
Natural gas	124		Decatherms	127		Decatherms
Foreign currency	$	7	Canadian	$	7	Canadian

Schedule of Other Derivatives Not Designated as Hedging Instruments, Statements of Financial Performance and Financial Position, Location [Table Text Block]

Net realized and unrealized losses (gains) on derivative transactions not designated as hedging instruments are recorded in Purchased power and fuel in the condensed consolidated statements of income and were as follows (in millions):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2015		2014		2015		2014
Commodity contracts:
Electricity	$	7	$	8	$	77	$	(21	)
Natural Gas	35		25		79		(17		)

Net unrealized and certain net realized losses (gains) presented in the preceding table are offset within the condensed consolidated statements of income by the effects of regulatory accounting.

Schedule of Price Risk Derivatives [Table Text Block]

Assuming no changes in market prices and interest rates, the following table indicates the year in which the net unrealized loss recorded as of September 30, 2015 related to PGE’s derivative activities would become realized as a result of the settlement of the underlying derivative instrument (in millions):

	2015		2016		2017		2018		2019		Thereafter		Total
Commodity contracts:
Electricity	$	10	$	24	$	7	$	7	$	7	$	88	$	143
Natural gas	18		77		42		10		2		—		149
Net unrealized loss	$	28	$	101	$	49	$	17	$	9	$	88	$	292

Schedule of Concentration of Risk, by Counterparty [Table Text Block]

Counterparties representing 10% or more of Assets and Liabilities from price risk management activities were as follows:

	September 30, 2015		December 31, 2014
Assets from price risk management activities:
Counterparty A	65	%	63	%
Counterparty B	8		14
	73	%	77	%
Liabilities from price risk management activities:
Counterparty C	39	%	22	%
Counterparty D	6		12
	45	%	34	%