Income Taxes (Tables)

9 Months Ended

Sep. 30, 2011

Income Tax Disclosure [Abstract]

Effective Income Tax

For continuing operations, including noncontrolling interests, the statutory U.S. federal income tax rate reconciles to Dominion’s and Virginia Power’s effective income tax rate as follows:

	Dominion				Virginia Power
Nine Months Ended September 30,	2011		2010		2011		2010
U.S. statutory rate	35.0	%	35.0	%	35.0	%	35.0	%
Increases (reductions) resulting from:
State taxes, net of federal benefit	3.6		4.5		3.9		3.9
Legislative changes	—		1.2		—		1.3
Other, net	(1.4	)	(0.4	)	(0.5	)	(1.3	)
Effective tax rate	37.2	%	40.3	%	38.4	%	38.9	%

Schedule Of Reconciliation Of Changes In Unrecognized Tax Benefits [Table Text Block]

	Dominion			Virginia Power
(millions)
Balance at January 1, 2011	$	307		$	117
Increases - prior period positions	24			17
Decreases - prior period positions	(53		)	(33		)
Current period positions	41			23
Balance at September 30, 2011	$	319		$	124