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Consolidated Statements of Comprehensive Income (Unaudited) (Parenthetical) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Net deferred gains (losses) on derivative-hedging activities, tax	$ (27)	$ (33)
Changes in unrealized net gains (losses) on investment securities, tax	(35)	(10)
Net derivative (gains) losses-hedging activities, tax	14	39
Net realized gains on investment securities, tax	16	1
Net pension and other postretirement benefit costs, tax	(8)	(6)
Changes in other comprehensive income (loss) from equity method investees, tax	(1)	0
Virginia Electric and Power Company
Net deferred gains (losses) on derivative-hedging activities, tax	0	5
Changes in unrealized net gains (losses) on investment securities, tax	(4)	(1)
Net realized gains on investment securities, tax	2	0
Dominion Gas Holdings, LLC
Net deferred gains (losses) on derivative-hedging activities, tax	7	4
Net derivative (gains) losses-hedging activities, tax	(7)	2
Net pension and other postretirement benefit costs, tax	$ (1)	$ (1)

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Changes in Other Comprehensive Income (Loss) from Equity Method Investees, Investments, Tax, Including Portion Attributable to Noncontrolling Interest

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Amount of tax expense (benefit) of reclassification adjustment from accumulated other comprehensive income for unrealized gain (loss) realized upon the sale of available-for-sale securities.

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