Goodwill and Intangible Assets (Goodwill) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2010		Dec. 31, 2011
Goodwill [Roll Forward]
Goodwill, Beginning Balance	$ 3,354	[1]	$ 3,141	[1]
Business disposition adjustment	(213)
Goodwill, Ending Balance	3,141	[1]	3,141	[1]
Dominion Generation [Member]
Goodwill [Roll Forward]
Goodwill, Beginning Balance	1,338	[1]	1,338	[1]
Business disposition adjustment	0
Goodwill, Ending Balance	1,338	[1]	1,338	[1]
Dominion Energy [Member]
Goodwill [Roll Forward]
Goodwill, Beginning Balance	846	[1]	712	[1]
Business disposition adjustment	(134)
Goodwill, Ending Balance	712	[1]	712	[1]
DVP [Member]
Goodwill [Roll Forward]
Goodwill, Beginning Balance	1,091	[1]	1,091	[1]
Business disposition adjustment	0
Goodwill, Ending Balance	1,091	[1]	1,091	[1]
Corporate and Other [Member]
Goodwill [Roll Forward]
Goodwill, Beginning Balance	79	[1]	0	[1]
Business disposition adjustment	(79)
Goodwill, Ending Balance	$ 0	[1]	$ 0	[1]

[1] Goodwill amounts do not contain any accumulated impairment losses.