Operating Segments (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended									12 Months Ended
	Dec. 31, 2013		Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Segment Reporting Information [Line Items]
Total operating expenses										$ 9,804		$ 9,977	[1]	$ 10,885	[1]
Income (loss) from discontinued operations										92		1,125	[1],[2]	58	[1],[2]
Impairment charge										1,600
Asset disposition adjustment										44		11
Loss from discontinued operations, net of tax										92		1,125	[1]	58	[1]
Income from operations	804	[3]	1,034	548	930	761	551	628	918	3,316		2,858	[1]	2,880	[1]
Corporate and Other
Segment Reporting Information [Line Items]
Total operating expenses										452		1,700		607
Net expenses attributable to other operating segments										184		1,500		364
Income (loss) from discontinued operations										92	[4]	1,125	[4]	58	[4]
Asset disposition adjustment										0	[5]	0	[5]
Dominion Generation
Segment Reporting Information [Line Items]
Income (loss) from discontinued operations										0	[4],[6]	0	[4],[6]	0	[4],[6]
Asset disposition adjustment										19	[7]	0
Net gain on investments										81
Net gain on investments after tax										49
Impairment charge														228
Asset impairment, net of tax														139
Income from operations														(66)
Operating income after tax														(39)
Impairment of emissions allowances														43
Impairment of emissions net of taxes														26
Dominion Generation | Brayton Point Kincaid And Elwood Power Stations
Segment Reporting Information [Line Items]
Loss before income taxes												1,700
Impairment charge						1,000
Loss from discontinued operations, net of tax												1,100
DVP
Segment Reporting Information [Line Items]
Income (loss) from discontinued operations										0	[6]	0	[6]	0	[6]
Asset disposition adjustment										0		0
Charge related to Biennial Review Order												87		96
Restoration costs net of tax												53		59
Dominion Energy
Segment Reporting Information [Line Items]
Income (loss) from discontinued operations										0		0		0
Asset disposition adjustment										25	[8]	11	[8]
Loss from operations										182
Loss from operations after tax										109
Impairment charge										55
Impairment charge after tax				33						33
Loss from producer services business										127
Loss from producer services business after tax				24						76
Brayton Point and Kincaid
Segment Reporting Information [Line Items]
Loss before income taxes				70
Brayton Point and Kincaid | Dominion Generation
Segment Reporting Information [Line Items]
Loss before income taxes										135				57
Income (loss) from discontinued operations										92
Amount of debt extinguishment										64
Amount of debt extinguishment after tax										38
Impairment charge										48
Long-lived assets impairment charges, net of tax										28
Loss from discontinued operation										17
Loss on discontinued operation, net of tax										18
Asset disposition adjustment										16
Loss from operations										6
Loss from operations after tax										8
Loss from discontinued operations, net of tax														33
Brayton Point and Kincaid | Dominion Energy
Segment Reporting Information [Line Items]
Loss from operations after tax				57
Kewaunee | Dominion Generation
Segment Reporting Information [Line Items]
Loss before income taxes												467
Loss from discontinued operations, net of tax												303
State Line and Salem Harbor | Dominion Generation
Segment Reporting Information [Line Items]
Loss before income taxes												49		34
Loss from discontinued operations, net of tax												22		25
Virginia Electric and Power Company
Segment Reporting Information [Line Items]
Total operating expenses										5,215		5,234		5,641
Restoration costs net of tax	28
Asset impairment, net of tax								42
Income from operations	408		679	463	530	417	746	361	468	2,080		1,992		1,605
Virginia Electric and Power Company | Corporate and Other
Segment Reporting Information [Line Items]
Total operating expenses										47		51		268
Virginia Electric and Power Company | Dominion Generation
Segment Reporting Information [Line Items]
Charge related to Biennial Review Order										40
Restoration costs net of tax										28
Impairment charge														228
Impairment charge, net of tax														139
Impairment of emissions allowances														43
Impairment of emissions net of taxes														26
Virginia Electric and Power Company | DVP
Segment Reporting Information [Line Items]
Charge related to Biennial Review Order												87		96
Restoration costs net of tax												$ 53		$ 59

[1] Recast to reflect Brayton Point and Kincaid as discontinued operations as described in Note 3 to the Consolidated Financial Statements. EPS amounts reflect the per share impact of the recast of $1.92 and $0.06 for 2012 and 2011, respectively.

[2] Includes income tax benefit of $43 million, $692 million, and $33 million in 2013, 2012 and 2011, respectively. For 2012, includes impairment charges of $1.6 billion related to Brayton Point and Kincaid. See Note 6 for additional information.

[3] Recast to reflect Brayton Point and Kincaid as discontinued operations as described in Note 3.

[4] Segment information for 2012 and 2011 has been recast to reflect Brayton Point and Kincaid as discontinued operations, as discussed in Note 3.

[5] Goodwill recorded at the Corporate and Other segment is allocated to the primary operating segments for goodwill impairment testing purposes.

[6] Amounts have been recast to reflect nonregulated retail energy marketing operations in the Dominion Generation segment.

[7] See Note 3 for a discussion of Dominion's dispositions and related goodwill write-offs.

[8] Related to assets sold or contributed to Blue Racer.