Derivatives and Hedge Accounting Activities (Schedule of Offsetting Assets) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013		Dec. 31, 2012
Offsetting Assets [Line Items]
Gross Amounts of Recognized Assets	$ 883		$ 799
Total derivatives, not subject to a master netting or similar arrangement	7		29
Derivative Asset	890	[1]	828	[1]
Gross Amounts Offset in the Consolidated Balance Sheet	0	[1]	0	[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 Received	0		4
Net Amounts	315		329
Derivative assets, current	687		518
Derivative assets, noncurrent	620		212
Current Assets
Offsetting Assets [Line Items]
Derivative assets, current	687
Non Current Derivative Assets
Offsetting Assets [Line Items]
Derivative assets, noncurrent	203		310
Current Derivative Assets
Offsetting Assets [Line Items]
Derivative assets, current			518
Interest rate | Over-the-counter
Offsetting Assets [Line Items]
Gross Amounts of Recognized Assets	137		93
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 Received	0		0
Net Amounts	137		74
Commodity | Over-the-counter
Offsetting Assets [Line Items]
Gross Amounts of Recognized Assets	240		290
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 Received	0		0
Net Amounts	177		193
Commodity | Exchange
Offsetting Assets [Line Items]
Gross Amounts of Recognized Assets	506		416
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 Received	0		4
Net Amounts	1		62
Virginia Electric and Power Company
Offsetting Assets [Line Items]
Gross Amounts of Recognized Assets	53		6
Total derivatives, not subject to a master netting or similar arrangement	0		0
Derivative Asset	53	[1]	6	[1]
Gross Amounts Offset in the Consolidated Balance Sheet	0	[1]	0	[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 Received	0		0
Net Amounts	49		3
Derivative assets, noncurrent	11		18
Virginia Electric and Power Company | Current Assets
Offsetting Assets [Line Items]
Derivative assets, current	53		6
Virginia Electric and Power Company | Interest rate | Over-the-counter
Offsetting Assets [Line Items]
Gross Amounts of Recognized Assets	48		0
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 Received	0		0
Net Amounts	48		0
Virginia Electric and Power Company | Commodity | Over-the-counter
Offsetting Assets [Line Items]
Gross Amounts of Recognized Assets	4		6
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 Received	0		0
Net Amounts	0		3
Virginia Electric and Power Company | Commodity | Exchange
Offsetting Assets [Line Items]
Gross Amounts of Recognized Assets	1
Gross Amounts Not Offset in the Consolidated Balance Sheet, Financial Instruments	0
Gross Amounts Not Offset in the Consolidated Balance Sheet, Cash Collateral Received	0
Net Amounts	$ 1

[1] At December 31, 2013, the total derivative asset balance contains $687 million of current assets, which is presented in current derivative assets, in Dominion’s Consolidated Balance Sheet, and $203 million of noncurrent assets, which is presented in other deferred charges and other assets in Dominion’s Consolidated Balance Sheet. At December 31, 2012, the total derivative asset balance contains $518 million of current assets, which is presented in current derivative assets in Dominion’s Consolidated Balance Sheet and $310 million of noncurrent assets, which is presented in other deferred charges and other assets in Dominion’s Consolidated Balance Sheet.