Price Risk Management (Tables)

3 Months Ended

Mar. 31, 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):

	March 31, 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	2			1
Total noncurrent derivative assets	2		(2)	1		(2)
Total derivative assets not designated as hedging instruments	$	9		$	7
Total derivative assets	$	9		$	7
Current liabilities:
Commodity contracts:
Electricity	$	47		$	54
Natural gas	60			52
Total current derivative liabilities	107			106
Noncurrent liabilities:
Commodity contracts:
Electricity	91			58
Natural gas	85			64
Total noncurrent derivative liabilities	176			122
Total derivative liabilities not designated as hedging instruments	$	283		$	228
Total derivative liabilities	$	283		$	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):

	March 31, 2015			December 31, 2014
Commodity contracts:
Electricity	15		MWh	16		MWh
Natural gas	126		Decatherms	127		Decatherms
Foreign currency	$	7	Canadian	$	7	Canadian

Price Risk Management Assets and Liabilities Subject to Master Netting Agreements [Table Text Block]

Price risk management liabilities subject to master netting agreements is as follows (in millions):

							Gross Amounts Not Offset in
	Gross Amounts Recognized		Gross Amounts Offset		Net Amounts Presented		Condensed Consolidated
							Balance Sheets					Net Amount
							Derivatives			Cash Collateral(1)
As of March 31, 2015:
Liabilities:
Commodity contracts:
Electricity(2)	$	91	$	—	$	91	$	(91	)	$	—	$	—
Natural gas(2)	16		—		16		(16		)	—		—
	$	107	$	—	$	107	$	(107	)	$	—	$	—
As of December 31, 2014:
Liabilities:
Commodity contracts:
Electricity(2)	$	55	$	—	$	55	$	(55	)	$	—	$	—
Natural gas(2)	17		—		17		(17		)	—		—
	$	72	$	—	$	72	$	(72	)	$	—	$	—

(1) As of March 31, 2015 and December 31, 2014, PGE had posted collateral in the amount of $15 million and $11 million, respectively, which consisted entirely of letters of credit.

(2) Included in Liabilities from price risk management activities—current and Liabilities from price risk management activities—noncurrent.

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 March 31,
	2015		2014
Commodity contracts:
Electricity	$	41	$	9
Natural Gas	44		(36		)

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 March 31, 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	$	35	$	22	$	6	$	6	$	6	$	56	$	131
Natural gas	43		64		30		6		—		—		143
Net unrealized loss	$	78	$	86	$	36	$	12	$	6	$	56	$	274

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:

	March 31, 2015		December 31, 2014
Assets from price risk management activities:
Counterparty A	67	%	63	%
Counterparty B	8		14
	75	%	77	%
Liabilities from price risk management activities:
Counterparty C	31	%	22	%
Counterparty D	9		12
	40	%	34	%