Derivatives and Hedge Accounting Activities (Schedule of Offsetting Liabilities) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013		Dec. 31, 2012
Offsetting Liabilities [Line Items]
Gross Amounts of Recognized Liabilities	$ 1,100		$ 650
Gross Amounts Offset in the Consolidated Balance Sheet	0	[1]	0	[1]
Total derivatives, not subject to a master netting or similar arrangement	2		11
Derivative liabilities	1,102	[1]	661	[1]
Gross Amounts Not Offset in the Consolidated Balance Sheet, Financial Instruments	568		466
Gross Amounts Not Offset in the Consolidated Balance Sheet, Cash Collateral Paid	402		63
Net Amounts	130		121
Derivative liabilities	828		510
Derivative Liability, Noncurrent	2		4
Current Liabilities
Offsetting Liabilities [Line Items]
Derivative liabilities	828		510
Non Current Derivative Liabilities
Offsetting Liabilities [Line Items]
Derivative Liability, Noncurrent	274		151
Interest rate | Over-the-counter
Offsetting Liabilities [Line Items]
Gross Amounts of Recognized Liabilities	0		66
Gross Amounts Offset in the Consolidated Balance Sheet	0		0
Gross Amounts Not Offset in the Consolidated Balance Sheet, Financial Instruments	0		19
Gross Amounts Not Offset in the Consolidated Balance Sheet, Cash Collateral Paid	0		0
Net Amounts	0		47
Commodity | Over-the-counter
Offsetting Liabilities [Line Items]
Gross Amounts of Recognized Liabilities	262		191
Gross Amounts Offset in the Consolidated Balance Sheet	0		0
Gross Amounts Not Offset in the Consolidated Balance Sheet, Financial Instruments	63		97
Gross Amounts Not Offset in the Consolidated Balance Sheet, Cash Collateral Paid	69		20
Net Amounts	130		74
Commodity | Exchange
Offsetting Liabilities [Line Items]
Gross Amounts of Recognized Liabilities	838		393
Gross Amounts Offset in the Consolidated Balance Sheet	0		0
Gross Amounts Not Offset in the Consolidated Balance Sheet, Financial Instruments	505		350
Gross Amounts Not Offset in the Consolidated Balance Sheet, Cash Collateral Paid	333		43
Net Amounts	0		0
Virginia Electric and Power Company
Offsetting Liabilities [Line Items]
Gross Amounts of Recognized Liabilities	12		34
Gross Amounts Offset in the Consolidated Balance Sheet	0	[1]	0	[1]
Total derivatives, not subject to a master netting or similar arrangement	0		0
Derivative liabilities	12	[1]	34	[1]
Gross Amounts Not Offset in the Consolidated Balance Sheet, Financial Instruments	4		3
Gross Amounts Not Offset in the Consolidated Balance Sheet, Cash Collateral Paid	7		2
Net Amounts	1		29
Derivative liabilities	12		33
Virginia Electric and Power Company | Current Liabilities
Offsetting Liabilities [Line Items]
Derivative liabilities	12		33
Virginia Electric and Power Company | Non Current Derivative Liabilities
Offsetting Liabilities [Line Items]
Derivative Liability, Noncurrent			1
Virginia Electric and Power Company | Interest rate | Over-the-counter
Offsetting Liabilities [Line Items]
Gross Amounts of Recognized Liabilities	0		25
Gross Amounts Offset in the Consolidated Balance Sheet	0		0
Gross Amounts Not Offset in the Consolidated Balance Sheet, Financial Instruments	0		0
Gross Amounts Not Offset in the Consolidated Balance Sheet, Cash Collateral Paid	0		0
Net Amounts	0		25
Virginia Electric and Power Company | Commodity | Over-the-counter
Offsetting Liabilities [Line Items]
Gross Amounts of Recognized Liabilities	12		7
Gross Amounts Offset in the Consolidated Balance Sheet	0		0
Gross Amounts Not Offset in the Consolidated Balance Sheet, Financial Instruments	4		3
Gross Amounts Not Offset in the Consolidated Balance Sheet, Cash Collateral Paid	7		0
Net Amounts	1		4
Virginia Electric and Power Company | Commodity | Exchange
Offsetting Liabilities [Line Items]
Gross Amounts of Recognized Liabilities	0		2
Gross Amounts Offset in the Consolidated Balance Sheet	0		0
Gross Amounts Not Offset in the Consolidated Balance Sheet, Financial Instruments	0		0
Gross Amounts Not Offset in the Consolidated Balance Sheet, Cash Collateral Paid	0		2
Net Amounts	$ 0		$ 0

[1] At December 31, 2013, the total derivative liability balance contains $828 million of current liabilities, which is presented in current derivative liabilities in Dominion’s Consolidated Balance Sheet, and $274 million of noncurrent liabilities, which is presented in the other deferred credits and other liabilities in Dominion’s Consolidated Balance Sheet. At December 31, 2012, the total derivative liability balance contains $510 million of current liabilities, which is presented in current derivative liabilities in Dominion’s Consolidated Balance Sheet and $151 million of noncurrent liabilities, which is presented in other deferred credits and other liabilities in Dominion’s Consolidated Balance Sheet.