Consolidated Statements of Comprehensive Income (Parenthetical) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Net deferred gains (losses) on derivative-hedging activities, tax	$ 47	$ (76)	$ 126	$ (22)
Changes in unrealized net gains (losses) on investment securities, tax	(27)	0	(28)	(51)
Changes in unrecognized pension and other postretirement benefit costs, tax	4	(148)	0	(148)
Net derivative (gains) losses-hedging activities, tax	6	9	(94)	(39)
Net realized (gains) losses on investment securities, tax	4	5	11	23
Net pension and other postretirement benefit costs, tax	(6)	(11)	(12)	(20)
Changes in other comprehensive income (loss) from equity method investees, tax	3	0	3	0
Virginia Electric and Power Company
Net deferred gains (losses) on derivative-hedging activities, tax	0	(1)	0	(2)
Changes in unrealized net gains (losses) on investment securities, tax	(3)	0	(5)	(5)
Net derivative (gains) losses-hedging activities, tax	0	0	2	0
Net realized (gains) losses on investment securities, tax	0	0	1	1
Dominion Gas Holdings, LLC
Net deferred gains (losses) on derivative-hedging activities, tax	12	(33)	17	(43)
Changes in unrecognized pension and other postretirement benefit costs, tax	0	(9)	(1)	(9)
Net derivative (gains) losses-hedging activities, tax	(2)	0	(4)	(1)
Net pension and other postretirement benefit costs, tax	$ 0	$ (1)	$ (1)	$ (2)