Earnings Per Share (Calculation of our Basic and Diluted EPS) (Details) (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended									12 Months Ended
	Dec. 31, 2013		Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Earnings Per Share [Abstract]
Net income attributable to Dominion	$ 431	[1]	$ 569	$ 202	$ 495	$ (659)	$ 209	$ 258	$ 494	$ 1,697		$ 302	[2]	$ 1,408	[2]
Average shares of common stock outstanding-Basic										578,700,000		572,900,000		573,100,000
Net effect of potentially dilutive securities										800,000	[3]	1,000,000	[3]	1,500,000	[3]
Average shares of common stock outstanding-Diluted										579,500,000		573,900,000		574,600,000
Earnings Per Common Share-Basic (in dollars per share)	$ 0.74	[1]	$ 0.98	$ 0.35	$ 0.86	$ (1.15)	$ 0.36	$ 0.45	$ 0.86	$ 2.93		$ 0.53	[2]	$ 2.46	[2]
Earnings Per Common Share-Diluted (in dollars per share)	$ 0.74	[1]	$ 0.98	$ 0.35	$ 0.86	$ (1.15)	$ 0.36	$ 0.45	$ 0.86	$ 2.93		$ 0.53	[2]	$ 2.45	[2]
Potentially dilutive securities excluded from the calculation of diluted EPS												0		0

[1] Recast to reflect Brayton Point and Kincaid as discontinued operations as described in Note 3.

[2] Recast to reflect Brayton Point and Kincaid as discontinued operations as described in Note 3 to the Consolidated Financial Statements. EPS amounts reflect the per share impact of the recast of $1.92 and $0.06 for 2012 and 2011, respectively.

[3] Dilutive securities consist primarily of contingently convertible senior notes. See Note 17 for more information.