Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Operating Activities
Net income including noncontrolling interests	$ 526	$ 674
Net income	503	632
Adjustments to reconcile net income including noncontrolling interests to net cash provided by operating activities:
Depreciation, depletion and amortization (including nuclear fuel)	572	548
Deferred income taxes and investment tax credits	131	250
Proceeds from assignment of tower rental portfolio		91
Contribution to pension plan		(75)
Gains on sales of assets	(44)
Provision for rate credits to electric utility customers	215
Other adjustments	13	(84)
Changes in:
Accounts receivable	47	136
Inventories	104	61
Increase Decrease In Deferred Fuel Costs	(264)	(37)
Prepayments	(3)	18
Accounts payable	(57)	(140)
Accrued interest, payroll and taxes	(103)	(19)
Customer deposits	101
Margin deposit assets and liabilities	(33)	8
Net realized and unrealized changes related to derivative activities	47	31
Other operating assets and liabilities	(20)	(102)
Net cash provided by operating activities	1,232	1,360
Investing Activities
Plant construction and other property additions (including nuclear fuel)	(1,103)	(1,435)
Proceeds from assignments of shale development rights	44
Acquisition of solar development projects	(7)	(94)
Proceeds from sales of securities	419	756
Purchases of securities	(453)	(786)
Contributions to equity method affiliates	(87)	(146)
Other	4	4
Net cash used in investing activities	(1,183)	(1,701)
Financing Activities
Issuance of short-term notes	950
Issuance (repayment) of short-term debt, net	(585)	(528)
Issuance of long-term debt	950	1,950
Repayment of long-term debt	(1,180)	(401)
Issuance of common stock	581	79
Common dividend payments	(544)	(474)
Other	(72)	(67)
Net cash provided by (used in) financing activities	100	559
Increase(Decrease) in cash, restricted cash and equivalents	149	218
Cash, restricted cash and equivalents at beginning of period	185	322
Cash, restricted cash and equivalents at end of period	334	540
Significant noncash investing activities:
Accrued capital expenditures	175	230
Virginia Electric and Power Company
Operating Activities
Net income	184	356
Adjustments to reconcile net income including noncontrolling interests to net cash provided by operating activities:
Depreciation, depletion and amortization (including nuclear fuel)	343	336
Deferred income taxes and investment tax credits	83	56
Proceeds from assignment of tower rental portfolio		91
Provision for rate credits to customers	215
Other adjustments	(1)	(26)
Changes in:
Accounts receivable	78	76
Affiliated receivables and payables	(59)	141
Inventories	54	11
Increase Decrease In Deferred Fuel Costs	(328)	(49)
Prepayments	(11)	(12)
Accounts payable	3	(21)
Accrued interest, payroll and taxes	(5)	9
Net realized and unrealized changes related to derivative activities	49	15
Asset retirement obligations	(10)	(22)
Other operating assets and liabilities	(16)	7
Net cash provided by operating activities	579	968
Investing Activities
Plant construction and other property additions (including nuclear fuel)	(570)	(647)
Purchases of nuclear fuel	(46)	(40)
Proceeds from sales of securities	218	330
Purchases of securities	(235)	(342)
Other	(6)	(3)
Net cash used in investing activities	(639)	(702)
Financing Activities
Issuance (repayment) of short-term debt, net	(116)	(25)
Issuance of long-term debt	700	750
Repayment of affiliated current borrowings, net	(22)	(262)
Repayment of long-term debt	(350)
Common dividend payments	(154)	(445)
Other	(6)	(6)
Net cash provided by (used in) financing activities	52	12
Increase(Decrease) in cash, restricted cash and equivalents	(8)	278
Cash, restricted cash and equivalents at beginning of period	24	11
Cash, restricted cash and equivalents at end of period	16	289
Significant noncash investing activities:
Accrued capital expenditures	104	124
Dominion Energy Gas Holdings, LLC
Operating Activities
Net income	166	108
Adjustments to reconcile net income including noncontrolling interests to net cash provided by operating activities:
Depreciation, depletion and amortization (including nuclear fuel)	59	54
Deferred income taxes and investment tax credits	14	59
Gains on sales of assets	(44)
Other adjustments	(4)	(4)
Changes in:
Accounts receivable	(28)	3
Affiliated receivables and payables	28	1
Inventories	(7)	(6)
Increase Decrease In Deferred Fuel Costs	8	11
Prepayments	16	12
Accounts payable	(39)	(53)
Accrued interest, payroll and taxes	(30)	(9)
Other operating assets and liabilities	(1)	(3)
Asset retirement obligations	(36)	(31)
Net cash provided by operating activities	102	142
Investing Activities
Plant construction and other property additions (including nuclear fuel)	(138)	(134)
Proceeds from assignments of shale development rights	44
Other	(5)	(8)
Net cash used in investing activities	(99)	(142)
Financing Activities
Issuance (repayment) of short-term debt, net	(15)	(61)
Repayment of affiliated current borrowings, net	23	56
Distribution payments to parent	(13)	(7)
Other	1
Net cash provided by (used in) financing activities	(4)	(12)
Increase(Decrease) in cash, restricted cash and equivalents	(1)	(12)
Cash, restricted cash and equivalents at beginning of period	30	43
Cash, restricted cash and equivalents at end of period	29	31
Significant noncash investing activities:
Accrued capital expenditures	$ 29	$ 31