Income Taxes (Tables)

6 Months Ended

Jun. 30, 2013

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
Six Months Ended June 30,	2013		2012		2013		2012
U.S. statutory rate	35.0	%	35.0	%	35.0	%	35.0	%
Increases (reductions) resulting from:
State taxes, net of federal benefit	1.9		4.1		2.6		3.9
Investment and production tax credits	(1.5	)	(0.5	)	—		—
Valuation allowances	—		(1.8	)	—		—
AFUDC - equity	(0.8	)	(0.7	)	(1.4	)	(1.1	)
Other, net	(0.5	)	(1.1	)	0.2		0.1
Effective tax rate	34.1	%	35.0	%	36.4	%	37.9	%

Schedule of Unrecognized Tax Benefits Roll Forward

During the six months ended June 30, 2013, Dominion's and Virginia Power's unrecognized tax benefits changed as follows:

	Dominion		Virginia Power
(millions)
Balance at January 1, 2013	$293		$57
Increases - prior period positions	2		2
Decreases - prior period positions	(42	)	(14	)
Current period positions	15		5
Settlements	(2	)	(2	)
Expiration of statutes of limitations	(4	)	—
Balance at June 30, 2013	$262		$48