Consolidated Statements of Cash Flows (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Operating Activities
Net income including noncontrolling interests	$ 1,326us-gaap_ProfitLoss	$ 1,720us-gaap_ProfitLoss	$ 329us-gaap_ProfitLoss
Net income (loss) attributable to Dominion	1,310us-gaap_NetIncomeLoss	1,697us-gaap_NetIncomeLoss	302us-gaap_NetIncomeLoss
Adjustments to reconcile net income including noncontrolling interests to net cash provided by operating activities:
Impairment of generation assets	0us-gaap_AssetImpairmentCharges	48us-gaap_AssetImpairmentCharges	2,089us-gaap_AssetImpairmentCharges
Net payments related to rate refunds	0d_ReserveForRateRefunds	(5)d_ReserveForRateRefunds	(151)d_ReserveForRateRefunds
Depreciation and amortization	1,292	1,208	1,127
Depreciation, depletion and amortization (including nuclear fuel)	1,560	1,390	1,443
Deferred income taxes and investment tax credits	449	737	246
Gains on the sale of assets and businesses	(220)us-gaap_RealizedInvestmentGainsLosses	(122)us-gaap_RealizedInvestmentGainsLosses	(81)us-gaap_RealizedInvestmentGainsLosses
Charges associated with North Anna and offshore wind legislation	374us-gaap_LossContingencyLossInPeriod	0us-gaap_LossContingencyLossInPeriod	0us-gaap_LossContingencyLossInPeriod
Charges associated with Liability Management Exercise	284us-gaap_RedemptionPremium	0us-gaap_RedemptionPremium	0us-gaap_RedemptionPremium
Charges associated with proposed settlement for ash pond closure costs	121us-gaap_EnvironmentalRemediationExpense	0us-gaap_EnvironmentalRemediationExpense	0us-gaap_EnvironmentalRemediationExpense
Other adjustments	(113)	(129)	(164)
Changes in:
Accounts receivable	131	(98)	292
Inventories	(43)us-gaap_IncreaseDecreaseInInventories	(29)us-gaap_IncreaseDecreaseInInventories	33us-gaap_IncreaseDecreaseInInventories
Deferred fuel and purchased gas costs, net	(180)	102	368
Prepayments	24	123	(85)
Accounts payable	(202)	50	(61)
Accrued interest, payroll and taxes	(41)	(27)	(12)
Margin deposit assets and liabilities	361	(414)	45
Other operating assets and liabilities	(392)	87	(154)
Net cash provided by operating activities	3,439	3,433	4,137
Investing Activities
Plant construction and other property additions (including nuclear fuel)	(5,345)	(4,065)	(4,145)
Acquisition of solar development projects	(206)us-gaap_PaymentsToAcquireProjects	(39)us-gaap_PaymentsToAcquireProjects	0us-gaap_PaymentsToAcquireProjects
Proceeds from sales of securities	1,235	1,476	1,356
Purchases of securities	(1,241)us-gaap_PaymentsToAcquireInvestments	(1,493)us-gaap_PaymentsToAcquireInvestments	(1,392)us-gaap_PaymentsToAcquireInvestments
Proceeds from the sale of Brayton Point, Kincaid and equity method investment in Elwood	0	465	0
Proceeds from the sale of electric retail energy marketing business	187	0	0
Proceeds from Blue Racer	60	33	58
Proceeds from assignments of Marcellus acreage	60	18	0
Restricted cash equivalents	8	25	108
Other	36	(5)	118
Net cash used in investing activities	(5,181)	(3,458)	(3,840)
Financing Activities
Issuance (repayment) of short-term debt, net	848	(485)	598
Issuance of short-term notes	400us-gaap_ProceedsFromShortTermDebt	400us-gaap_ProceedsFromShortTermDebt	400us-gaap_ProceedsFromShortTermDebt
Repayment of short-term notes	(400)us-gaap_RepaymentsOfShortTermDebt	(400)us-gaap_RepaymentsOfShortTermDebt	0us-gaap_RepaymentsOfShortTermDebt
Issuance of long-term debt	6,085	4,135	1,500
Repayment and repurchase of long-term debt, including redemption premiums	(3,993)us-gaap_RepaymentsOfLongTermDebt	(1,245)us-gaap_RepaymentsOfLongTermDebt	(1,675)us-gaap_RepaymentsOfLongTermDebt
Repayment of long-term debt	0us-gaap_RepaymentsOfRelatedPartyDebt	(258)us-gaap_RepaymentsOfRelatedPartyDebt	0us-gaap_RepaymentsOfRelatedPartyDebt
Acquisition of Juniper noncontrolling interest in Fairless	0	(923)	0
Net proceeds from issuance of Dominion Midstream common units	392	0	0
Subsidiary preferred stock redemption	(259)	0	0
Issuance of common stock	205	278	265
Common dividend payments	(1,398)us-gaap_PaymentsOfDividendsCommonStock	(1,302)us-gaap_PaymentsOfDividendsCommonStock	(1,209)us-gaap_PaymentsOfDividendsCommonStock
Subsidiary preferred dividend payments	(11)	(17)	(16)
Other	(125)	(90)	(14)
Net cash provided by (used in) financing activities	1,744	93	(151)
Increase in cash and cash equivalents	2	68	146
Cash and cash equivalents at beginning of year	316	248	102
Cash and cash equivalents at end of year	318	316	248
Supplemental Cash Flow Information
Interest and related charges, excluding capitalized amounts	889us-gaap_InterestPaidNet	852us-gaap_InterestPaidNet	913us-gaap_InterestPaidNet
Income taxes	72us-gaap_IncomeTaxesPaidNet	56us-gaap_IncomeTaxesPaidNet	(58)us-gaap_IncomeTaxesPaidNet
Significant noncash investing activities:
Accrued capital expenditures	315	375	388
Blue Racer
Investing Activities
Proceeds from Blue Racer	85	160	115
Virginia Electric and Power Company
Operating Activities
Net income (loss) attributable to Dominion	858	1,138	1,050
Adjustments to reconcile net income including noncontrolling interests to net cash provided by operating activities:
Net payments related to rate refunds	0	(5)	(151)
Depreciation and amortization	915	853	782
Depreciation, depletion and amortization (including nuclear fuel)	1,090	1,016	927
Deferred income taxes and investment tax credits	396	240	502
Charges associated with North Anna and offshore wind legislation	374	0	0
Charges associated with proposed settlement for ash pond closure costs	121	0	0
Other adjustments	(35)	(63)	(70)
Changes in:
Accounts receivable	(27)	(124)	126
Affiliated accounts receivable and payable	23	3	(2)
Inventories	(45)	(19)	8
Deferred fuel and purchased gas costs, net	(191)	93	378
Prepayments	(220)	(9)	18
Accounts payable	5	15	19
Accrued interest, payroll and taxes	(19)	14	(22)
Other operating assets and liabilities	(82)	30	(77)
Net cash provided by operating activities	2,248	2,329	2,706
Investing Activities
Plant construction and other property additions (including nuclear fuel)	(2,911)	(2,394)	(2,082)
Purchases of nuclear fuel	(196)	(139)	(206)
Purchases of securities	(574)	(603)	(638)
Proceeds from sales of securities	549	572	626
Other	(2)	(37)	18
Net cash used in investing activities	(3,134)	(2,601)	(2,282)
Financing Activities
Issuance (repayment) of short-term debt, net	519	(151)	98
Issuance (repayment) of affiliated current borrowings, net	330	(338)	248
Issuance of long-term debt	950	1,835	450
Repayment of long-term debt	(61)	(470)	(641)
Subsidiary preferred stock redemption	(259)	0	0
Common dividend payments	(590)	(579)	(559)
Subsidiary preferred dividend payments	(11)	(17)	(16)
Other	7	(20)	(5)
Net cash provided by (used in) financing activities	885	260	(425)
Increase in cash and cash equivalents	(1)	(12)	(1)
Cash and cash equivalents at beginning of year	16	28	29
Cash and cash equivalents at end of year	15	16	28
Supplemental Cash Flow Information
Interest and related charges, excluding capitalized amounts	383	328	376
Income taxes	386	427	225
Significant noncash investing activities:
Accrued capital expenditures	181	276	242
Dominion Gas Holdings, LLC
Operating Activities
Net income (loss) attributable to Dominion	512	461	459
Adjustments to reconcile net income including noncontrolling interests to net cash provided by operating activities:
Depreciation and amortization	197	188	176
Deferred income taxes and investment tax credits	216	102	294
Gains on the sale of assets and businesses	(124)	(122)	(176)
Other adjustments	2	(3)	2
Changes in:
Accounts receivable	(42)	(17)	63
Affiliated receivables	(1)	2	(3)
Inventories	(2)	0	5
Prepayments	(99)	13	(9)
Accounts payable	(35)	62	(52)
Payables to affiliates	(4)	8	(12)
Accrued interest, payroll and taxes	(15)	48	(43)
Other operating assets and liabilities	(134)	(44)	(75)
Net cash provided by operating activities	471	698	629
Investing Activities
Plant construction and other property additions (including nuclear fuel)	(719)	(650)	(928)
Proceeds from sale of assets to an affiliate	47	113	0
Advances to affiliate, net	0	(5)	(14)
Proceeds from Blue Racer	20	19	25
Proceeds from assignments of Marcellus acreage	60	18	0
Other	(5)	(14)	(10)
Net cash used in investing activities	(616)	(460)	(952)
Financing Activities
Issuance (repayment) of affiliated current borrowings, net	(892)	(545)	549
Issuance of long-term debt	1,400	1,200	0
Repayment of long-term debt	0	(569)	(10)
Distribution payments	(346)	(318)	(210)
Other	(16)	(10)	0
Net cash provided by (used in) financing activities	146	(242)	329
Increase in cash and cash equivalents	1	(4)	6
Cash and cash equivalents at beginning of year	8	12	6
Cash and cash equivalents at end of year	9	8	12
Supplemental Cash Flow Information
Interest and related charges, excluding capitalized amounts	23	31	43
Income taxes	266	148	67
Significant noncash investing activities:
Accrued capital expenditures	35	42	62
Extinguishment of affiliated long-term debt in exchange for assets sold to affiliate	67	0	187
Distribution of non-cash asset (account receivable) to parent	0	80	0
Proceeds from sale of assets to affiliate not yet received	0	30	61
Conversion of affiliated current borrowings to membership interests	0	0	61
Dominion Gas Holdings, LLC \| Blue Racer
Investing Activities
Proceeds from Blue Racer	$ 1	$ 78	$ 0

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