Derivatives and Hedge Accounting Activities (Gains and Losses on our Derivatives in Cash Flow Hedging Relationships) (Details) (Cash Flow Hedges, USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in AOCI on Derivatives (Effective Portion)	$ (404)	[1]	$ (13)	[1]	$ (115)	[1]
Amount of Gain (Loss) Reclassified from AOCI to Income	(130)		94		66
Increase (Decrease) in Derivatives Subject to Regulatory Treatment	86	[2]	(25)	[2]	(163)	[2]
Commodity
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in AOCI on Derivatives (Effective Portion)	(481)	[1]	71	[1]	137	[1]
Amount of Gain (Loss) Reclassified from AOCI to Income	(115)		96		74
Increase (Decrease) in Derivatives Subject to Regulatory Treatment	5	[2]	10	[2]	(20)	[2]
Commodity | Operating Revenue
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Reclassified from AOCI to Income	(58)		188		153
Commodity | Purchased gas
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Reclassified from AOCI to Income	(47)		(75)		(78)
Commodity | Electric fuel and other energy-related purchases
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Reclassified from AOCI to Income	(10)		(17)		(2)
Commodity | Purchased electric capacity
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Reclassified from AOCI to Income					1
Interest rate
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in AOCI on Derivatives (Effective Portion)	77	[1],[3]	(84)	[1],[3]	(252)	[1],[3]
Amount of Gain (Loss) Reclassified from AOCI to Income	(15)	[3]	(2)	[3]	(8)	[3]
Increase (Decrease) in Derivatives Subject to Regulatory Treatment	81	[2],[3]	(35)	[2],[3]	(143)	[2],[3]
Virginia Electric and Power Company
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in AOCI on Derivatives (Effective Portion)	9	[4]	(8)	[4]	(9)	[4]
Amount of Gain (Loss) Reclassified from AOCI to Income	0		(4)		1
Increase (Decrease) in Derivatives Subject to Regulatory Treatment	86	[5]	(25)	[5]	(163)	[5]
Virginia Electric and Power Company | Commodity
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in AOCI on Derivatives (Effective Portion)	0	[4]	(2)	[4]	(3)	[4]
Amount of Gain (Loss) Reclassified from AOCI to Income	0		(4)		0
Increase (Decrease) in Derivatives Subject to Regulatory Treatment	5	[5]	10	[5]	(20)	[5]
Virginia Electric and Power Company | Commodity | Electric Fuel and Energy Purchases
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Reclassified from AOCI to Income	0		(4)		(1)
Virginia Electric and Power Company | Commodity | Purchased electric capacity
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Reclassified from AOCI to Income					1
Virginia Electric and Power Company | Interest rate
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in AOCI on Derivatives (Effective Portion)	9	[4],[6]	(6)	[4],[6]	(6)	[4],[6]
Amount of Gain (Loss) Reclassified from AOCI to Income	0	[6]	0	[6]	1	[6]
Increase (Decrease) in Derivatives Subject to Regulatory Treatment	$ 81	[5],[6]	$ (35)	[5],[6]	$ (143)	[5],[6]

[1] Amounts deferred into AOCI have no associated effect in Dominion's Consolidated Statements of Income.

[2] Represents net derivative activity deferred into and amortized out of regulatory assets/liabilities. Amounts deferred into regulatory assets/liabilities have no associated effect in Dominion's Consolidated Statements of Income.

[3] Amounts recorded in Dominion's Consolidated Statements of Income are classified in interest and related charges.

[4] Amounts deferred into AOCI have no associated effect in Virginia Power's Consolidated Statements of Income.

[5] Represents net derivative activity deferred into and amortized out of regulatory assets/liabilities. Amounts deferred into regulatory assets/liabilities have no associated effect in Virginia Power's Consolidated Statements of Income.

[6] Amounts recorded in Virginia Power's Consolidated Statements of Income are classified in interest and related charges.