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Earnings Per Share
9 Months Ended
Sep. 30, 2011
Earnings Per Share [Abstract] 
Earnings Per Share
Earnings Per Share
The following table presents the calculation of Dominion’s basic and diluted EPS:
 
Three Months Ended September 30,
 
Nine Months Ended September 30,
 
2011
 
2010
 
2011
 
2010
(millions, except EPS)
 
Net income attributable to Dominion
$
392

 
$
575

 
$
1,207

 
$
2,510

Average shares of common stock outstanding – Basic
569.4

 
585.0

 
574.2

 
591.7

Net effect of potentially dilutive securities(1)
1.8

 
1.4

 
1.4

 
1.1

Average shares of common stock outstanding – Diluted
571.2

 
586.4

 
575.6

 
592.8

Earnings Per Common Share – Basic
$
0.69

 
$
0.98

 
$
2.10

 
$
4.24

Earnings Per Common Share – Diluted
$
0.69

 
$
0.98

 
$
2.10

 
$
4.23

(1)
Potentially dilutive securities consist of options, goal-based stock and contingently convertible senior notes.

There were no potentially dilutive securities excluded from the calculation of diluted EPS for the three and nine months ended September 30, 2011 and 2010.