XML 54 R26.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Equity (Tables) | 9 Months Ended
--- | ---
Sep. 30, 2012
Equity [Abstract] |
Schedule of Stockholders Equity [Table Text Block] | The activity in equity during the nine month periods ended September 30, 2012 and 2011 is as follows (dollars in millions):
| Portland General Electric Company Shareholders’ Equity |  |  |
|  |  | Accumulated Other Comprehensive Loss |  | Retained Earnings |  |  | Noncontrolling Interests’ Equity
| Common Stock |  |  |  |
| Shares |  | Amount |  |  |  |
Balances as of December 31, 2011 | 75,362,956 |  |  | $ | 836 |  |  | $ | (6 | ) |  | $ | 833 |  |  |  | $ | 3 |
Issuance of shares pursuant to equity-based plans | 171,430 |  |  | — |  |  | — |  |  | — |  |  |  | — |
Stock-based compensation | — |  |  | 2 |  |  | — |  |  | — |  |  |  | — |
Dividends declared | — |  |  | — |  |  | — |  |  | (61 | ) |  |  | — |
Net income (loss) | — |  |  | — |  |  | — |  |  | 113 |  |  |  | (1 | )
Balances as of September 30, 2012 | 75,534,386 |  |  | $ | 838 |  |  | $ | (6 | ) |  | $ | 885 |  |  |  | $ | 2 |
Balances as of December 31, 2010 | 75,316,419 |  |  | $ | 831 |  |  | $ | (5 | ) |  | $ | 766 |  |  |  | $ | 7 |
Issuance of shares pursuant to equity-based plans | 28,932 |  |  | — |  |  | — |  |  | — |  |  |  | — |
Stock-based compensation | — |  |  | 2 |  |  | — |  |  | — |  |  |  | — |
Dividends declared | — |  |  | — |  |  | — |  |  | (59 | ) |  |  | — |
Noncontrolling interests’ capital distributions | — |  |  | — |  |  | — |  |  | — |  |  |  | (4 | )
Net income | — |  |  | — |  |  | — |  |  | 118 |  |  |  | — |
Balances as of September 30, 2011 | 75,345,351 |  |  | $ | 833 |  |  | $ | (5 | ) |  | $ | 825 |  |  |  | $ | 3 |

X
- Details
Name: | us-gaap_EquityAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of changes in the separate accounts comprising stockholders' equity (in addition to retained earnings) and of the changes in the number of shares of equity securities during at least the most recent annual fiscal period and any subsequent interim period presented is required to make the financial statements sufficiently informative if both financial position and results of operations are presented. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 + Details
Name: | us-gaap_ScheduleOfStockholdersEquityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration