Consolidated Statements Equity (USD $) In Millions, unless otherwise specified		Total		Common Stock	Other Paid-In Capital	Retained Earnings		Accumulated Other Comprehensive Income (Loss)	Total Common Shareholders' Equity		Noncontrolling Interests	Virginia Electric and Power Company	Virginia Electric and Power Company Common Stock	Virginia Electric and Power Company Other Paid-In Capital	Virginia Electric and Power Company Retained Earnings	Virginia Electric and Power Company Accumulated Other Comprehensive Income (Loss)
Beginning Balance, value at Dec. 31, 2009		$ 11,185		$ 6,525	$ 185	$ 4,686		$ (211)	$ 11,185		$ 0	$ 7,173	$ 4,738	$ 1,110	$ 1,299	$ 26
Beginning Balance (in shares) at Dec. 31, 2009				599									242
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income including noncontrolling interests		2,825	[1]			2,825			2,825
Net income attributable to Dominion		2,808	[1]									852			852
Consolidation of noncontrolling interests, (in shares)				1									33
Consolidation of noncontrolling interests, value		10		10					10			1,000	1,000
Stock awards and stock options exercised (net of change in unearned compensation) (in shares)				2
Stock awards and stock options exercised (net of change in unearned compensation), value		80		80					80
Other stock issuances (in shares)				(21)
Other stock issuances, value		(900)		(900)					(900)
Tax benefit from stock awards and stock options exercised		9			9				9
Dividends		(1,093)	[2]			(1,093)	[2]		(1,093)	[2]		(517)			(517)
Tax benefit from stock awards and stock options exercised		15										1		1
Other comprehensive loss, net of tax		(119)						(119)	(119)			(2)				(2)
Beginning Balance, value at Dec. 31, 2010		11,997		5,715	194	6,418		(330)	11,997			8,507	5,738	1,111	1,634	24
Ending Balance (shares) at Dec. 31, 2010				581									275
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income including noncontrolling interests	[3]	483
Net income attributable to Dominion		479	[3]									278
Beginning Balance, value at Mar. 31, 2011
Beginning Balance, value at Dec. 31, 2010		11,997		5,715	194	6,418		(330)	11,997		0	8,507			1,634	24
Beginning Balance (in shares) at Dec. 31, 2010				581
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income including noncontrolling interests		1,426	[1]			1,425			1,425		1
Net income attributable to Dominion		1,408	[1]									822			822
Noncontrolling Interest, Increase from Business Combination	[4]	61									61
Consolidation of noncontrolling interests, (in shares)				1
Consolidation of noncontrolling interests, value		49		49					49
Stock awards and stock options exercised (net of change in unearned compensation) (in shares)				(13)
Stock awards and stock options exercised (net of change in unearned compensation), value		(601)		(601)					(601)
Stock repurchases (in shares)	[5]			1
Stock repurchases, value	[5]	0		17	(17)				0
Tax benefit from stock awards and stock options exercised		2			2				2
Dividends		(1,151)				(1,146)	[2]		(1,146)		(5)	(574)			(574)
Tax benefit from stock awards and stock options exercised		13
Other comprehensive loss, net of tax		(280)						(280)	(280)			(5)				(5)
Beginning Balance, value at Dec. 31, 2011		11,503		5,180	179	6,697		(610)	11,446		57	8,750	5,738		1,882	19
Ending Balance (shares) at Dec. 31, 2011				570									275
Beginning Balance, value at Sep. 30, 2011
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income including noncontrolling interests		207
Net income attributable to Dominion		201										6
Beginning Balance, value at Dec. 31, 2011		11,503										8,750	5,738
Ending Balance (shares) at Dec. 31, 2011													275
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income including noncontrolling interests	[3]	501
Net income attributable to Dominion		494	[3]									243
Beginning Balance, value at Mar. 31, 2012
Beginning Balance, value at Dec. 31, 2011		11,503		5,180	179	6,697		(610)	11,446		57	8,750	5,738	1,111	1,882	19
Beginning Balance (in shares) at Dec. 31, 2011				570									275
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income including noncontrolling interests		329				318			318		11
Net income attributable to Dominion		302										1,050			1,050
Consolidation of noncontrolling interests, (in shares)				4
Consolidation of noncontrolling interests, value		246		246					246
Stock awards and stock options exercised (net of change in unearned compensation) (in shares)				1
Stock awards and stock options exercised (net of change in unearned compensation), value		26		26					26
Other stock issuances (in shares)	[5]			1
Other stock issuances, value	[5]	14		41	(27)				14
Tax benefit from stock awards and stock options exercised		10			10				10
Dividends		(1,236)				(1,225)	[2]		(1,225)		(11)	(575)			(575)
Tax benefit from stock awards and stock options exercised		8										2		2
Other comprehensive loss, net of tax		(267)						(267)	(267)			6				6
Beginning Balance, value at Dec. 31, 2012		10,625		5,493	162	5,790		(877)	10,568		57	9,233	5,738	1,113	2,357	25
Ending Balance (shares) at Dec. 31, 2012				576									275
Beginning Balance, value at Sep. 30, 2012
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income including noncontrolling interests		(652)
Net income attributable to Dominion		(659)										220
Beginning Balance, value at Dec. 31, 2012		$ 10,625										$ 9,233	$ 5,738
Ending Balance (shares) at Dec. 31, 2012													275

[1] Recast to reflect Salem Harbor and State Line as discontinued operations as described in Note 3 to the Consolidated Financial Statements. EPS amounts reflect the per share impact of the recast.

[2] Includes subsidiary preferred dividends related to noncontrolling interests of $16 million in 2012 and $17 million in 2011 and 2010.

[3] Revenue and income amounts have been recast to reflect Salem Harbor and State Line as discontinued operations, as discussed in Note 3.

[4] See Note 15 for consolidation of a VIE in October 2011.

[5] Contains shares issued in excess of principal amounts related to converted securities. See Note 17 for further information on convertible securities.