Employee Benefit Plans (Narrative) (Details) (USD $)	1 Months Ended	12 Months Ended
	Jan. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Actual return on plan assets			$ 743,000,000	$ 273,000,000
Expected return on pension and other postretirement plan assets			509,000,000	519,000,000
Previous eligible age for post retirement benefits with 10 years of service			55 years
New eligible age for postretirement benefits with 10 Years of service			58 years
Other postretirement benefit plan obligation reduction	71,000,000
Federal subsidy received			5,000,000
Decrease in other postretirement benefit obligations due to federal subsidy			170,000,000
Accumulated benefit obligation			5,500,000,000	4,500,000,000
Cumulative required contribution period (years)			10 years
Expected contribution to voluntary employees beneficiary association		14,000,000
Employer contributions			40,000,000	38,000,000	39,000,000
U.S. equity:
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Defined benefit plan, actual plan asset allocations			28.00%
Non-U.S. equity:
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Defined benefit plan, actual plan asset allocations			18.00%
Fixed Income
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Defined benefit plan, actual plan asset allocations			33.00%
Real estate:
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Defined benefit plan, actual plan asset allocations			3.00%
Other alternative investments
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Defined benefit plan, actual plan asset allocations			18.00%
Virginia Electric and Power Company
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Net periodic benefit (credit) cost			72,000,000	50,000,000	84,000,000
Employer contributions			15,000,000	14,000,000	14,000,000
Virginia Electric and Power Company | Dominion Retiree Health And Welfare Plan
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Net periodic benefit (credit) cost			$ 13,000,000	$ 23,000,000	$ 59,000,000