Earnings Per Share

12 Months Ended

Dec. 31, 2011

Earnings Per Share [Abstract]

Earnings Per Share

EARNINGS PER SHARE

The following table presents the calculation of Dominion's basic and diluted EPS:

	2011		2010		2009
(millions, except EPS)
Net income attributable to Dominion	$	1,408	$	2,808	$	1,287
Average shares of common stock outstanding-Basic	573.1		588.9		593.3
Net effect of potentially dilutive securities(1)	1.5		1.2		0.4
Average shares of common stock outstanding-Diluted	574.6		590.1		593.7
Earnings Per Common Share-Basic	$	2.46	$	4.77	$	2.17
Earnings Per Common Share-Diluted	$	2.45	$	4.76	$	2.17

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

Potentially dilutive securities with the right to acquire approximately 1.2 million common shares for the year ended December 31, 2009 were not included in the calculation of diluted EPS because the exercise or purchase prices of those instruments were greater than the average market price of Dominion's common shares. There were no potentially dilutive securities excluded from the calculation of diluted EPS for the years ended December 31, 2011 and 2010.