Related Party Transactions (Tables) (Virginia Electric and Power Company)

12 Months Ended

Dec. 31, 2012

Virginia Electric and Power Company

Related Party Transaction [Line Items]

Schedules Of Transactions With Affiliates

Presented below are significant transactions with DRS and other affiliates:

Year Ended December 31,	2012		2011		2010
(millions)
Commodity purchases from affiliates	$	368	$	376	$	373
Services provided by affiliates	399		393		469
Services provided to affiliates	19		21		19