Price Risk Management (Tables)

6 Months Ended

Jun. 30, 2011

Derivative [Line Items]

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 were as follows (in millions):

	June 30, 2011			December 31, 2010
Commodity contracts:
Electricity	12		MWh	9		MWh
Natural gas	82		Decatherms	93		Decatherms
Foreign currency	$	11	Canadian	$	7	Canadian

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

The fair value of PGE’s Assets and Liabilities from price risk management activities consists of the following (in millions):

	June 30, 2011			December 31, 2010
Current assets:
Commodity contracts:
Electricity	$	6		$	4
Natural gas	3			9
Total current derivative assets	9		(1)	13		(1)
Noncurrent assets:
Commodity contracts:
Electricity	1			1
Natural gas	—			2
Total noncurrent derivative assets	1		(2)	3		(2)
Total derivative assets not designated as hedging instruments	$	10		$	16
Total derivative assets	$	10		$	16
Current liabilities:
Commodity contracts:
Electricity	$	56		$	77
Natural gas	107			111
Total current derivative liabilities	163			188
Noncurrent liabilities:
Commodity contracts:
Electricity	37			42
Natural gas	106			146
Total noncurrent derivative liabilities	143			188
Total derivative liabilities not designated as hedging instruments	$	306		$	376
Total derivative liabilities	$	306		$	376

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

Net realized and unrealized gains (losses) on derivative transactions not designated as hedging instruments are classified in Purchased power and fuel, net of deferrals related to regulatory accounting, in the condensed consolidated statements of income and were as follows (in millions):

	Three Months Ended June 30,						Six Months Ended June 30,
	2011			2010			2011			2010
Commodity contracts:
Electricity	$	1		$	(6	)	$	(31	)	$	(59	)
Natural Gas	(17		)	(18		)	(11		)	(109		)

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 June 30, 2011 related to PGE’s derivative activities would become realized as a result of the settlement of the underlying derivative instrument (in millions):

	2011		2012		2013		2014		2015		Total
Commodity contracts:
Electricity	$	22	$	39	$	18	$	7	$	—	$	86
Natural gas	56		97		46		10		1		210
Net unrealized loss	$	78	$	136	$	64	$	17	$	1	$	296

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

Counterparties representing 10% or more of Assets and Liabilities from price risk management activities as of June 30, 2011 or December 31, 2010 were as follows:

	June 30, 2011		December 31, 2010
Assets from price risk management activities:
Counterparty A	24	%	22	%
Counterparty B	13		11
Counterparty C	12		23
Counterparty D	10		1
Counterparty E	—		10
	59	%	67	%
Liabilities from price risk management activities:
Counterparty C	25	%	24	%
Counterparty F	10		9
Counterparty G	9		12
	44	%	45	%