Operating Segments (Narrative) (Details) (USD $)	3 Months Ended				6 Months Ended
	Jun. 30, 2014		Jun. 30, 2013		Jun. 30, 2014		Jun. 30, 2013
Segment Reporting Information [Line Items]
Charges associated with North Anna and offshore wind legislation					$ 287,000,000		$ 0
Loss from discontinued operations	0	[1]	70,000,000	[1]	0	[1]	69,000,000	[1]
After tax net expense	2,419,000,000		2,432,000,000		5,281,000,000		5,025,000,000
Corporate and Other
Segment Reporting Information [Line Items]
After tax net expenses					430,000,000		134,000,000
All segments
Segment Reporting Information [Line Items]
After tax net expenses					402,000,000		131,000,000
Severance pay and other benefit costs							28,000,000
Severance pay and other benefit costs, net of tax							17,000,000
Dominion Energy
Segment Reporting Information [Line Items]
Loss related to restructuring of producer services					319,000,000
Restructuring after tax					193,000,000
Net loss							107,000,000
After tax net loss							57,000,000
Impairment charge							55,000,000
Impairment charge, net of tax							33,000,000
Loss related to producer service business							52,000,000
Loss related to producer service business, net of tax							24,000,000
Dominion Generation
Segment Reporting Information [Line Items]
Loss related to restructuring of producer services					47,000,000
Restructuring after tax					33,000,000
Net loss					147,000,000
After tax net loss					90,000,000
Net gain on sale					100,000,000
Net gain on sale, after tax					57,000,000
Write off of goodwill					31,000,000
Net gain on investments							51,000,000
Net gain on investments, after tax							31,000,000
Dominion Generation | Virginia legislation
Segment Reporting Information [Line Items]
Charges associated with North Anna and offshore wind legislation					287,000,000
Charges associated with North Anna and offshore wind facilities, net of tax					191,000,000
Brayton Point and Kincaid | Dominion Generation
Segment Reporting Information [Line Items]
Net loss							6,000,000
After tax net loss							3,000,000
Net loss from discontinued operations, before income tax							118,000,000
Loss from discontinued operations							69,000,000
Amount of debt extinguishment							64,000,000
Amount of debt extinguishment, net of tax							38,000,000
Impairment of long-lived assets to be disposed of							48,000,000
Impairment of long lived assets to be disposed of, net of tax							28,000,000
Virginia Electric and Power Company
Segment Reporting Information [Line Items]
Charges associated with North Anna and offshore wind legislation					287,000,000		0
After tax net expense	1,524,000,000		1,247,000,000		2,894,000,000		2,498,000,000
Virginia Electric and Power Company | Corporate and Other
Segment Reporting Information [Line Items]
After tax net expense					181,000,000		5,000,000
Virginia Electric and Power Company | All segments
Segment Reporting Information [Line Items]
After tax net expense					189,000,000
Virginia Electric and Power Company | Dominion Generation | Virginia legislation
Segment Reporting Information [Line Items]
Charges associated with North Anna and offshore wind legislation					287,000,000
Charges associated with North Anna and offshore wind facilities, net of tax					191,000,000
Dominion Gas Holdings, LLC
Segment Reporting Information [Line Items]
Severance pay and other benefit costs							14,000,000
Severance pay and other benefit costs, net of tax							8,000,000
After tax net expense	274,000,000		342,000,000		578,000,000		704,000,000
Dominion Gas Holdings, LLC | Corporate and Other
Segment Reporting Information [Line Items]
After tax net expenses					0		41,000,000
Dominion Gas Holdings, LLC | Dominion Energy
Segment Reporting Information [Line Items]
Impairment charge							55,000,000
Impairment charge, net of tax							$ 33,000,000

[1] Includes income tax benefit of $49 million for both the three and six months ended June 30, 2013.