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Commitments and Guarantees (Tables) | 12 Months Ended
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Dec. 31, 2013
Long-term Purchase Commitment [Line Items] |
Unrecorded Unconditional Purchase Obligations Disclosure [Table Text Block] | As of December 31, 2013, PGE’s estimated future minimum payments pursuant to purchase obligations for the following five years and thereafter are as follows (in millions):
| Payments Due
| 2014 |  | 2015 |  | 2016 |  | 2017 |  | 2018 |  | Thereafter |  | Total
Capital and other purchase commitments | $ | 710 |  |  | $ | 113 |  |  | $ | 40 |  |  | $ | 2 |  |  | $ | 2 |  |  | $ | 67 |  |  | $ | 934 |
Purchased power and fuel: |  |  |  |  |  |  |  |  |  |  |  |  |
Electricity purchases | 240 |  |  | 159 |  |  | 150 |  |  | 125 |  |  | 126 |  |  | 683 |  |  | 1,483 |
Capacity contracts | 22 |  |  | 23 |  |  | 22 |  |  | 2 |  |  | 2 |  |  | 1 |  |  | 72 |
Public Utility Districts | 8 |  |  | 8 |  |  | 7 |  |  | 5 |  |  | 5 |  |  | 33 |  |  | 66 |
Natural gas | 65 |  |  | 21 |  |  | 12 |  |  | 10 |  |  | 8 |  |  | 6 |  |  | 122 |
Coal and transportation | 21 |  |  | 6 |  |  | 6 |  |  | 6 |  |  | 4 |  |  | 5 |  |  | 48 |
Operating leases | 11 |  |  | 9 |  |  | 10 |  |  | 10 |  |  | 10 |  |  | 191 |  |  | 241 |
Total | $ | 1,077 |  |  | $ | 339 |  |  | $ | 247 |  |  | $ | 160 |  |  | $ | 157 |  |  | $ | 986 |  |  | $ | 2,966 |
Schedule of Long-term Contracts for Purchase of Electric Power [Table Text Block] | PGE has long-term power purchase contracts with certain public utility districts in the state of Washington and with the City of Portland, Oregon. The Company is required to pay its proportionate share of the operating and debt service costs of the hydroelectric projects whether or not they are operable. The future minimum payments for the Public Utility Districts in the preceding table reflect the principal payment only and do not include interest, operation, or maintenance expenses. Selected information regarding these projects is summarized as follows (dollars in millions):
| Revenue Bonds as of December 31, 2013 |  | PGE’s Share in 2013 |  | Contract Expiration |  | PGE Cost, including Debt Service
| Output |  | Capacity |  |  | 2013 |  | 2012 |  | 2011
|  |  |  |  | (in MW) |  |  |  |  |  |  |  |
Priest Rapids and Wanapum | $ | 1,001 |  |  | 9.0 | % |  | 170 |  |  | 2052 |  | $ | 14 |  |  | $ | 14 |  |  | $ | 14 |
Wells | 232 |  |  | 19.4 |  |  | 150 |  |  | 2018 |  | 10 |  |  | 10 |  |  | 10 |
Portland Hydro | 7 |  |  | 100.0 |  |  | 36 |  |  | 2017 |  | 4 |  |  | 4 |  |  | 4 |

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- Definition Tabular disclosure of information concerning the terms and significance of long term contracts to purchase power (generally referred to as purchase power agreements (PPAs) or power sale agreements (PSAs)) including date of contract expiration, share of plant output being purchased, estimated annual cost, annual minimum debt service payment required and amount of related long-term debt or lease obligations outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 440 -SubTopic 10 -Section 25 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6394851&loc=SL2265659-115463 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 980 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 10.D) -URI http://asc.fasb.org/extlink&oid=6499423&loc=d3e659339-123030 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 10 -Section D + Details
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- Definition Tabular disclosure of unconditional purchase obligations that are not recognized as a liability on the balance sheet, including the nature and significant terms of an unconditional purchase obligation; the amount of the fixed and determinable portion of the obligation as of the date of the latest balance sheet presented in the aggregate and, if determinable, for each of the five succeeding fiscal years; the nature of any variable components of the obligation; the amount purchased under the obligation (for example, the take-or-pay or throughput contract) for the reporting period; and may include the amount of imputed interest necessary to reduce the obligation to present value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 440 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6394976&loc=d3e25287-109308 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 440 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6394976&loc=d3e25336-109308 + Details
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