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Equity (Tables)
 6 Months Ended
Jun. 30, 2011
Equity [Abstract]  
Schedule of Stockholders Equity [Table Text Block]
The activity in equity during the six months ended June 30, 2011 and 2010 is as follows (dollars in millions):


 
Portland General Electric Company Shareholders’ Equity
 
 
 
 
Common Stock
 
Accumulated
Other
Comprehensive
Loss
 
Retained
Earnings
 
 
Noncontrolling
Interests’
Equity
 
Shares
 
Amount
 
 
 
 
Balances as of December 31, 2010
75,316,419


 
$
831


 
$
(5
)
 
$
766


 
 
$
7


Vesting of restricted stock units
12,104


 
—


 
—


 
—


 
 
—


Issuance of shares pursuant to employee stock purchase plan
11,320


 
—


 
—


 
—


 
 
—


Issuance of shares pursuant to dividend reinvestment and direct stock purchase plan
1,261


 
—


 
—


 
—


 
 
—


Stock-based compensation
—


 
1


 
—


 
—


 
 
—


Dividends declared
—


 
—


 
—


 
(39
)
 
 
—


Capital distribution
—


 
—


 
—


 
—


 
 
(4
)
Net income
—


 
—


 
—


 
91


 
 
—


Balances as of June 30, 2011
75,341,104


 
$
832


 
$
(5
)
 
$
818


 
 
$
3


 
 
 
 
 
 
 
 
 
 
 
Balances as of December 31, 2009
75,210,580


 
$
829


 
$
(6
)
 
$
719


 
 
$
1


Vesting of restricted and performance stock units
69,561


 
—


 
—


 
—


 
 
—


Issuance of shares pursuant to employee stock purchase plan
14,846


 
—


 
—


 
—


 
 
—


Stock-based compensation
—


 
1


 
—


 
—


 
 
—


Dividends declared
—


 
—


 
—


 
(39
)
 
 
—


Net income
—


 
—


 
—


 
51


 
 
—


Other comprehensive income
—


 
—


 
1


 
—


 
 
—


Balances as of June 30, 2010
75,294,987


 
$
830


 
$
(5
)
 
$
731


 
 
$
1