Operating Segments (Tables)

9 Months Ended

Sep. 30, 2017

Segment Reporting Information [Line Items]

Segment Reporting Disclosure Other Information

A description of the operations included in the Companies’ primary operating segments is as follows:

Primary Operating Segment	Description of Operations	Dominion Energy	Virginia Power	Dominion Energy Gas
Power Delivery	Regulated electric distribution	X	X
	Regulated electric transmission	X	X
Power Generation	Regulated electric fleet	X	X
	Merchant electric fleet	X
Gas Infrastructure	Gas transmission and storage	X		X
	Gas distribution and storage	X		X
	Gas gathering and processing	X		X
	LNG import and storage	X
	Nonregulated retail energy marketing	X

Schedule of Segment Reporting Information, by Segment

The following table presents segment information pertaining to Dominion Energy’s operations:

	Power Delivery		Power Generation		Gas Infrastructure		Corporate and Other			Adjustments/ Eliminations			Consolidated Total
(millions)
Three Months Ended September 30, 2017
Total revenue from external customers	$	580	$	1,931	$	459	$	3		$	206		$	3,179
Intersegment revenue		4		3		204		150			(361	)		—
Total operating revenue		584		1,934		663		153			(155	)		3,179
Net income (loss) attributable to Dominion Energy		138		369		187		(29	)		—			665
Three Months Ended September 30, 2016
Total revenue from external customers	$	614	$	1,947	$	359	$	2		$	210		$	3,132
Intersegment revenue		6		2		205		144			(357	)		—
Total operating revenue		620		1,949		564		146			(147	)		3,132
Net income (loss) attributable to Dominion Energy		139		650		135		(234	)		—			690
Nine Months Ended September 30, 2017
Total revenue from external customers	$	1,664	$	5,091	$	1,949	$	12		$	660		$	9,376
Intersegment revenue		16		8		645		451			(1,120	)		—
Total operating revenue		1,680		5,099		2,594		463			(460	)		9,376
Net income (loss) attributable to Dominion Energy		390		870		613		(186	)		—			1,687
Nine Months Ended September 30, 2016
Total revenue from external customers	$	1,682	$	5,204	$	1,235	$	8		$	522		$	8,651
Intersegment revenue		17		7		507		469			(1,000	)		—
Total operating revenue		1,699		5,211		1,742		477			(478	)		8,651
Net income (loss) attributable to Dominion Energy		363		1,066		483		(246	)		—			1,666

Virginia Electric and Power Company

Segment Reporting Information [Line Items]

Schedule of Segment Reporting Information, by Segment

The following table presents segment information pertaining to Virginia Power’s operations:

	Power Delivery		Power Generation		Corporate and Other			Consolidated Total
(millions)
Three Months Ended September 30, 2017
Operating revenue	$	580	$	1,574	$	—		$	2,154
Net income		137		314		8			459
Three Months Ended September 30, 2016
Operating revenue	$	617	$	1,594	$	—		$	2,211
Net income		140		359		4			503
Nine Months Ended September 30, 2017
Operating revenue	$	1,670	$	4,062	$	—		$	5,732
Net income		387		735		11			1,133
Nine Months Ended September 30, 2016
Operating revenue	$	1,686	$	4,191	$	—		$	5,877
Net income (loss)		362		699		(15	)		1,046

Dominion Energy Gas Holdings, LLC

Segment Reporting Information [Line Items]

Schedule of Segment Reporting Information, by Segment

The following table presents segment information pertaining to Dominion Energy Gas' operations:

	Gas Infrastructure		Corporateand Other			Consolidated Total
(millions)
Three Months Ended September 30, 2017
Operating revenue	$	401	$	—		$	401
Net income (loss)		121		(4	)		117
Three Months Ended September 30, 2016
Operating revenue	$	382	$	—		$	382
Net income		77		6			83
Nine Months Ended September 30, 2017
Operating revenue	$	1,313	$	—		$	1,313
Net income (loss)		318		(16	)		302
Nine Months Ended September 30, 2016
Operating revenue	$	1,181	$	—		$	1,181
Net income (loss)		288		(2	)		286