Shareholders' Equity (Schedule of Reclassifications out of Accumulated Other Comprehensive Income) (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
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Operating Revenue	$ 3,185	[1]	$ 3,432	$ 2,980	$ 3,523	$ 3,101	$ 3,332	$ 3,005	$ 3,397	$ 13,120		$ 12,835	[2]	$ 13,765	[2]
Purchased gas										1,331		1,177	[2]	1,764	[2]
Electric fuel and other energy-related purchases										3,885		3,645	[2]	3,942	[2]
Interest and related charges										877		816	[2]	796	[2]
Income from continuing operations including noncontrolling interests before income taxes										2,704		2,265	[2]	2,262	[2]
Income Tax Expense (Benefit)										(892)	[3]	(811)	[2],[3]	(778)	[2],[3]
Income from continuing operations including noncontrolling interests										1,812		1,454	[2]	1,484	[2]
Other income										265		223	[2]	178	[2]
Impairment										8		14		48
Deferred gains and losses on derivatives-hedging activities | Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income from continuing operations including noncontrolling interests before income taxes										130
Income Tax Expense (Benefit)										(53)
Income from continuing operations including noncontrolling interests										77
Unrealized gains and losses on investment securities | Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income from continuing operations including noncontrolling interests before income taxes										(90)
Income Tax Expense (Benefit)										35
Income from continuing operations including noncontrolling interests										(55)
Other income										(98)
Impairment										8
Unrecognized pension and other postretirement benefit costs | Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income from continuing operations including noncontrolling interests before income taxes										94
Income Tax Expense (Benefit)										(39)
Income from continuing operations including noncontrolling interests										55
Prior-service costs (credits)										(8)
Actuarial losses										102
Commodity | Deferred gains and losses on derivatives-hedging activities | Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Operating Revenue										58
Purchased gas										47
Electric fuel and other energy-related purchases										10
Interest rate | Deferred gains and losses on derivatives-hedging activities | Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest and related charges										15
Virginia Electric and Power Company
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Operating Revenue	1,745		2,059	1,710	1,781	1,630	2,086	1,756	1,754	7,295		7,226		7,246
Electric fuel and other energy-related purchases										2,304		2,368		2,506
Interest and related charges										369		385		331
Income from continuing operations including noncontrolling interests before income taxes										1,797		1,703		1,362
Income Tax Expense (Benefit)										(659)	[4]	(653)	[4]	(540)	[4]
Other income										86		96		88
Impairment										1		1		4
Virginia Electric and Power Company | Unrealized gains and losses on investment securities | Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income from continuing operations including noncontrolling interests before income taxes										(5)
Income Tax Expense (Benefit)										2
Income from continuing operations including noncontrolling interests										(3)
Other income										(6)
Impairment										$ 1

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

[2] 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.

[3] In 2012, Dominion’s current federal income tax expense for continuing and discontinued operations includes a $195 million benefit related to a carryback of its 2012 net operating loss. In 2011, Dominion’s deferred federal income tax expense includes the recognition of a $346 million benefit, including $51 million related to discontinued operations, for its 2011 net operating loss expected to be used to reduce taxable income in future years.

[4] In 2011, Virginia Power’s deferred federal income tax expense includes a $54 million benefit related to a portion of its 2011 net operating loss that is expected to be used in future years. Also, Virginia Power’s current federal income tax expense reflects the amounts of its 2011 net operating losses realized through its participation in a tax sharing agreement with Dominion and its subsidiaries.