Operating Segments (Tables)

12 Months Ended

Dec. 31, 2011

Segment Reporting Information, Revenue for Reportable Segment [Abstract]

Segment Reporting Disclosure Other Information



Primary Operating Segment	Description of Operations	Dominion	Virginia Power
DVP	Regulated electric distribution	X	X
	Regulated electric transmission	X	X
	Nonregulated retail energy marketing (electric and gas)	X
Dominion Generation	Regulated electric fleet	X	X
	Merchant electric fleet	X
Dominion Energy	Gas transmission and storage	X
	Gas distribution and storage	X
	LNG import and storage	X
	Producer services	X

Schedule of Segment Reporting Information, by Segment



Year Ended December 31,	DVP		Dominion Generation		Dominion Energy		Corporate and Other			Adjustments & Eliminations			Consolidated Total
(millions)
2011
Total revenue from external customers	$	3,663	$	7,320	$	2,044	$	54		$	1,298		$	14,379
Intersegment revenue	173		350		1,077		596			(2,196		)	—
Total operating revenue	3,836		7,670		3,121		650			(898		)	14,379
Depreciation, depletion and amortization	374		459		207		29			—			1,069
Equity in earnings of equity method investees	—		3		23		9			—			35
Interest income	22		54		27		70			(106		)	67
Interest and related charges	185		219		57		514			(106		)	869
Income taxes	318		601		323		(497		)	—			745
Net income attributable to Dominion	501		1,003		521		(617		)	—			1,408
Investment in equity method investees	8		415		104		26			—			553
Capital expenditures	1,091		1,593		907		61			—			3,652
Total assets (billions)	11.5		22.1		10.6		11.4			(10		)	45.6
2010
Total revenue from external customers	$	3,613	$	8,005	$	2,335	$	19		$	1,225		$	15,197
Intersegment revenue	207		413		1,166		750			(2,536		)	—
Total operating revenue	3,820		8,418		3,501		769			(1,311		)	15,197
Depreciation, depletion and amortization	353		462		210		30			—			1,055
Equity in earnings of equity method investees	—		11		21		10			—			42
Interest income	12		45		12		92			(90		)	71
Interest and related charges	158		185		85		494			(90		)	832
Income taxes	277		771		302		707			—			2,057
Loss from discontinued operations, net of tax	—		—		—		(155		)	—			(155		)
Net income attributable to Dominion	448		1,291		475		594			—			2,808
Investment in equity method investees	8		426		106		31			—			571
Capital expenditures	1,038		1,742		613		29			—			3,422
Total assets (billions)	10.8		20.4		9.7		10.8			(8.9		)	42.8
2009
Total revenue from external customers	$	3,107	$	8,390	$	2,604	$	(472	)	$	1,169		$	14,798
Intersegment revenue	174		361		1,206		711			(2,452		)	—
Total operating revenue	3,281		8,751		3,810		239			(1,283		)	14,798
Depreciation, depletion and amortization	341		492		258		47			—			1,138
Equity in earnings of equity method investees	—		8		21		13			—			42
Interest income	13		49		16		129			(118		)	89
Interest and related charges	159		201		113		534			(118		)	889
Income taxes	233		694		319		(650		)	—			596
Income from discontinued operations, net of tax	—		—		—		26			—			26
Net income (loss) attributable to Dominion	384		1,281		517		(895		)	—			1,287
Capital expenditures	841		2,140		737		119			—			3,837

Segment Reporting Disclosure

OPERATING SEGMENTS

Dominion and Virginia Power are organized primarily on the basis of products and services sold in the U.S. A description of the operations included in the Companies' primary operating segments is as follows:



Primary Operating Segment	Description of Operations	Dominion	Virginia Power
DVP	Regulated electric distribution	X	X
	Regulated electric transmission	X	X
	Nonregulated retail energy marketing (electric and gas)	X
Dominion Generation	Regulated electric fleet	X	X
	Merchant electric fleet	X
Dominion Energy	Gas transmission and storage	X
	Gas distribution and storage	X
	LNG import and storage	X
	Producer services	X

In addition to the operating segments above, the Companies also report a Corporate and Other segment.

The Corporate and Other Segment of Virginia Power primarily includes specific items attributable to its operating segments that are not included in profit measures evaluated by executive management in assessing the segments' performance or allocating resources among the segments.

The Corporate and Other Segment of Dominion includes its corporate, service company and other functions (including unallocated debt) and the net impact of the operations and sale of Peoples, which is discussed in Note 4. In addition, Corporate and Other includes specific items attributable to Dominion's operating segments that are not included in profit measures evaluated by executive management in assessing the segments' performance or allocating resources among the segments.

DOMINION

In 2011, Dominion reported after-tax net expense of $346 million for specific items in the Corporate and Other segment, with $375 million of these net expenses attributable to its operating segments.

The net expenses for specific items in 2011 primarily related to the impact of the following items:


•	A $228 million ($139 million after-tax) charge reflecting plant balances that are not expected to be recovered in future periods due to the anticipated retirement of certain utility coal-fired generating units, attributable to Dominion Generation;


•	A $96 million ($59 million after-tax) charge reflecting restoration costs associated with damage caused by Hurricane Irene, primarily attributable to DVP;


•	A $66 million ($39 million after-tax) loss from the operations of Kewaunee, attributable to Dominion Generation. Kewaunee's results of operations have been reflected in the Corporate and Other segment due to Dominion's decision in the first quarter of 2011 to pursue the sale of Kewaunee;


•	A $55 million ($39 million after-tax) impairment charge related to State Line, attributable to Dominion Generation; and


•	A $57 million ($34 million after-tax) charge related to the impairment of SO₂ emissions allowances not expected to be consumed due to CSAPR, attributable to Dominion Generation.

In 2010, Dominion reported after-tax net benefits of $837 million for specific items in the Corporate and Other segment, with $1 billion of these net benefits attributable to its operating segments.

The net benefits for specific items in 2010 primarily related to the impact of the following items:


•	A $2.5 billion ($1.4 billion after-tax) benefit resulting from the gain on the sale of substantially all of Dominion's Appalachian E&P operations net of charges related to the divestiture, attributable to Dominion Energy; partially offset by


•	A $338 million ($206 million after-tax) charge primarily reflecting severance pay and other benefits related to a workforce reduction program, attributable to:


•	DVP ($67 million after-tax);


•	Dominion Energy ($24 million after-tax); and


•	Dominion Generation ($115 million after-tax);


•	A $134 million ($155 million after-tax) loss from the discontinued operations of Peoples primarily reflecting a net loss on the sale, attributable to the Corporate and Other segment; and


•	A $194 million ($127 million after-tax) impairment charge at certain merchant generation power stations, attributable to Dominion Generation.

In 2009, Dominion reported after-tax net expenses of $655 million for specific items in the Corporate and Other segment, with $688 million of these net expenses attributable to its operating segments.

The net expenses for specific items in 2009 primarily related to the impact of the following items:


•	A $455 million ($281 million after-tax) ceiling test impairment charge related to the carrying value of Dominion's E&P properties, attributable to Dominion Energy; and


•	A $712 million ($435 million after-tax) charge in connection with the settlement of Virginia Power's 2009 base rate case proceedings, attributable to:


•	Dominion Generation ($257 million after-tax); and


•	DVP ($178 million after-tax).

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



Year Ended December 31,	DVP		Dominion Generation		Dominion Energy		Corporate and Other			Adjustments & Eliminations			Consolidated Total
(millions)
2011
Total revenue from external customers	$	3,663	$	7,320	$	2,044	$	54		$	1,298		$	14,379
Intersegment revenue	173		350		1,077		596			(2,196		)	—
Total operating revenue	3,836		7,670		3,121		650			(898		)	14,379
Depreciation, depletion and amortization	374		459		207		29			—			1,069
Equity in earnings of equity method investees	—		3		23		9			—			35
Interest income	22		54		27		70			(106		)	67
Interest and related charges	185		219		57		514			(106		)	869
Income taxes	318		601		323		(497		)	—			745
Net income attributable to Dominion	501		1,003		521		(617		)	—			1,408
Investment in equity method investees	8		415		104		26			—			553
Capital expenditures	1,091		1,593		907		61			—			3,652
Total assets (billions)	11.5		22.1		10.6		11.4			(10		)	45.6
2010
Total revenue from external customers	$	3,613	$	8,005	$	2,335	$	19		$	1,225		$	15,197
Intersegment revenue	207		413		1,166		750			(2,536		)	—
Total operating revenue	3,820		8,418		3,501		769			(1,311		)	15,197
Depreciation, depletion and amortization	353		462		210		30			—			1,055
Equity in earnings of equity method investees	—		11		21		10			—			42
Interest income	12		45		12		92			(90		)	71
Interest and related charges	158		185		85		494			(90		)	832
Income taxes	277		771		302		707			—			2,057
Loss from discontinued operations, net of tax	—		—		—		(155		)	—			(155		)
Net income attributable to Dominion	448		1,291		475		594			—			2,808
Investment in equity method investees	8		426		106		31			—			571
Capital expenditures	1,038		1,742		613		29			—			3,422
Total assets (billions)	10.8		20.4		9.7		10.8			(8.9		)	42.8
2009
Total revenue from external customers	$	3,107	$	8,390	$	2,604	$	(472	)	$	1,169		$	14,798
Intersegment revenue	174		361		1,206		711			(2,452		)	—
Total operating revenue	3,281		8,751		3,810		239			(1,283		)	14,798
Depreciation, depletion and amortization	341		492		258		47			—			1,138
Equity in earnings of equity method investees	—		8		21		13			—			42
Interest income	13		49		16		129			(118		)	89
Interest and related charges	159		201		113		534			(118		)	889
Income taxes	233		694		319		(650		)	—			596
Income from discontinued operations, net of tax	—		—		—		26			—			26
Net income (loss) attributable to Dominion	384		1,281		517		(895		)	—			1,287
Capital expenditures	841		2,140		737		119			—			3,837

At December 31, 2011, 2010, and 2009, none of Dominion's long-lived assets and no significant percentage of its operating revenues were associated with international operations.

VIRGINIA POWER

The majority of Virginia Power's revenue is provided through tariff rates. Generally, such revenue is allocated for management reporting based on an unbundled rate methodology among Virginia Power's DVP and Dominion Generation segments.

In 2011, Virginia Power reported after-tax net expenses of $268 million for specific items attributable to its operating segments in the Corporate and Other segment.

The net expenses for specific items in 2011 primarily related to the impact of the following:


•	A $228 million ($139 million after-tax) charge reflecting plant balances that are not expected to be recovered in future periods due to the anticipated retirement of certain coal-fired generating units, attributable to Dominion Generation;


•	A $96 million ($59 million after-tax) charge reflecting restoration costs associated with damage caused by Hurricane Irene, primarily attributable to DVP;


•	A $43 million ($26 million after-tax) charge related to the impairment of SO₂ emissions allowances not expected to be consumed due to CSAPR, attributable to Dominion Generation.

In 2010, Virginia Power reported after-tax net expenses of $153 million for specific items attributable to its operating segments in the Corporate and Other segment.

The net expenses for specific items in 2010 primarily related to the impact of the following:


•	A $202 million ($123 million after-tax) charge primarily reflecting severance pay and other benefits related to a workforce reduction program, attributable to:


•	DVP ($63 million after-tax); and


•	Dominion Generation ($60 million after-tax).

In 2009, Virginia Power reported after-tax net expenses of $430 million for specific items attributable to its operating segments in the Corporate and Other segment. The net expenses primarily related to a $700 million ($427 million after-tax) charge in connection with the settlement of the 2009 base rate case proceedings, attributable to Dominion Generation ($257 million after-tax) and DVP ($170 million after-tax).

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



Year Ended December 31,	DVP		Dominion Generation		Corporate and Other			Adjustments & Eliminations			Consolidated Total
(millions)
2011
Operating revenue	$	1,793	$	5,546	$	(93	)	$	—		$	7,246
Depreciation and amortization	368		350		—			—			718
Interest income	10		8		—			—			18
Interest and related charges	182		199		(50		)	—			331
Income taxes	265		447		(172		)	—			540
Net income (loss)	426		664		(268		)	—			822
Capital expenditures	1,081		1,009		—			—			2,090
Total assets (billions)	10.7		14.3		—			(1.5		)	23.5
2010
Operating revenue	$	1,680	$	5,546	$	(7	)	$	—		$	7,219
Depreciation and amortization	344		327		—			—			671
Interest income	11		4		—			—			15
Interest and related charges	158		189		—			—			347
Income taxes	228		385		(71		)	—			542
Net income (loss)	377		630		(155		)	—			852
Capital expenditures	1,035		1,199		—			—			2,234
Total assets (billions)	9.9		13.8		—			(1.4		)	22.3
2009
Operating revenue	$	1,465	$	5,560	$	(441	)	$	—		$	6,584
Depreciation and amortization	320		320		1			—			641
Interest income	11		6		—			—			17
Interest and related charges	158		191		—			—			349
Income taxes	183		241		(277		)	—			147
Net income (loss)	313		475		(432		)	—			356
Capital expenditures	839		1,649		—			—			2,488

- Definition

Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.

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- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

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