Price Risk Management (Tables)

3 Months Ended

Mar. 31, 2013

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, 2013			December 31, 2012
Current assets:
Commodity contracts:
Electricity	$	5		$	1
Natural gas	6			3
Total current derivative assets	11		(1)	4		(1)
Noncurrent assets:
Commodity contracts—Natural gas	1		(2)	2		(2)
Total derivative assets not designated as hedging instruments	$	12		$	6
Total derivative assets	$	12		$	6
Current liabilities:
Commodity contracts:
Electricity	$	31		$	44
Natural gas	60			83
Total current derivative liabilities	91			127
Noncurrent liabilities:
Commodity contracts:
Electricity	47			38
Natural gas	31			35
Total noncurrent derivative liabilities	78			73
Total derivative liabilities not designated as hedging instruments	$	169		$	200
Total derivative liabilities	$	169		$	200

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

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

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 2016, were as follows (in millions):

	March 31, 2013			December 31, 2012
Commodity contracts:
Electricity	13		MWh	11		MWh
Natural gas	87		Decatherms	86		Decatherms
Oil	3		Gallons	—		Gallons
Foreign currency	$	8	Canadian	$	7	Canadian

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

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

	Gross		Gross		Net		Gross Amounts Not Offset in
	Amounts		Amounts		Amounts		Consolidated Balance Sheet
	Recognized		Offset		Presented		Derivatives			Cash Collateral(1)		Net Amount
As of March 31, 2013:
Assets:
Commodity contracts:
Electricity(2)	$	1	$	—	$	1	$	(1	)	$	—	$	—
Natural gas(2)	1		—		1		(1		)	—		—
	$	2	$	—	$	2	$	(2	)	$	—	$	—
Liabilities:
Commodity contracts:
Electricity(3)	$	12	$	—	$	12	$	(12	)	$	—	$	—
Natural gas(3)	5		—		5		(5		)	—		—
	$	17	$	—	$	17	$	(17	)	$	—	$	—
As of December 31, 2012:
Liabilities:
Commodity contracts:
Electricity(3)	$	20	$	—	$	20	$	(20	)	$	—	$	—
Natural gas(3)	7		—		7		(7		)	—		—
	$	27	$	—	$	27	$	(27	)	$	—	$	—

(1) As of March 31, 2013 and December 31, 2012, the Company had collateral posted of $11 million and $18 million, respectively, which consists entirely of letters of credit.

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

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

	Three Months Ended March 31,
	2013			2012
Commodity contracts:
Electricity	$	8		$	53
Natural Gas	(8		)	36

Net unrealized and certain net realized (gains) losses presented in the table above are offset within the 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, 2013 related to PGE’s derivative activities would become realized as a result of the settlement of the underlying derivative instrument (in millions):

	2013		2014		2015		2016		Total
Commodity contracts:
Electricity	$	20	$	30	$	18	$	5	$	73
Natural gas	50		25		6		3		84
Net unrealized loss	$	70	$	55	$	24	$	8	$	157

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 March 31, 2013 or December 31, 2012 were as follows:

	March 31, 2013		December 31, 2012
Assets from price risk management activities:
Counterparty A	16	%	3	%
Counterparty B	15		11
Counterparty C	9		13
Counterparty D	9		21
Counterparty E	3		10
	52	%	58	%
Liabilities from price risk management activities:
Counterparty F	20	%	24	%
Counterparty G	14		—
Counterparty H	10		14
Counterparty I	7		10
	51	%	48	%