Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Operating Activities
Net income including noncontrolling interests	$ 1,887	$ 1,787
Net income	1,806	1,687
Adjustments to reconcile net income including noncontrolling interests to net cash provided by operating activities:
Depreciation, depletion and amortization (including nuclear fuel)	1,706	1,649
Deferred income taxes and investment tax credits	486	652
Proceeds from assignment of tower rental portfolio		91
Contribution to pension plan		(75)
Gains on sales of assets and equity method investments	(196)	(61)
Provision for rate credits to electric utility customers	77
Charges associated with future ash pond and landfill closure costs	81
Charge associated with FERC-regulated plant disallowance	129
Net gains on nuclear decommissioning trusts funds and other investments	(208)	(101)
Other adjustments	10	14
Changes in:
Accounts receivable	129	247
Inventories	(37)	(34)
Deferred fuel and purchased gas costs, net	(226)	(81)
Prepayments	(81)	34
Accounts payable	(167)	(158)
Accrued interest, payroll and taxes	(14)	61
Margin deposit assets and liabilities	(5)	51
Net realized and unrealized changes related to derivative activities	101	18
Pension and other postretirement benefits	(79)	(132)
Other operating assets and liabilities	118	(290)
Net cash provided by operating activities	3,711	3,672
Investing Activities
Plant construction and other property additions (including nuclear fuel)	(3,111)	(4,122)
Acquisition of solar development projects	(108)	(343)
Proceeds from sales of securities	1,301	1,496
Purchases of securities	(1,364)	(1,555)
Proceeds from assignments of shale development rights	109	5
Proceeds from sale of certain merchant generation assets	91
Contributions to equity method affiliates	(282)	(343)
Other	(5)	(6)
Net cash used in investing activities	(3,369)	(4,868)
Financing Activities
Issuance (repayment) of short-term debt, net	(363)	(95)
Issuance of short-term notes	1,450
Repayment of short-term notes	(1,450)	(250)
Issuance of long-term debt	4,400	3,480
Repayment of long-term debt	(3,154)	(1,529)
Credit facility borrowings	73
Issuance of common stock	737	1,233
Common dividend payments	(1,635)	(1,435)
Other	(198)	(229)
Net cash provided by (used in) financing activities	(140)	1,175
Increase (decrease) in cash, restricted cash and equivalents	202	(21)
Cash, restricted cash and equivalents at beginning of period	185	322
Cash, restricted cash and equivalents at end of period	387	301
Significant noncash investing and financing activities:
Accrued capital expenditures	197	355
Virginia Electric and Power Company
Operating Activities
Net income	1,043	1,133
Adjustments to reconcile net income including noncontrolling interests to net cash provided by operating activities:
Depreciation, depletion and amortization (including nuclear fuel)	974	999
Deferred income taxes and investment tax credits	175	262
Proceeds from assignment of tower rental portfolio		91
Charges associated with future ash pond and landfill closure costs	81
Provision for rate credits to customers	77
Other adjustments	(48)	(28)
Changes in:
Accounts receivable	(113)	32
Affiliated receivables and payables	(8)	159
Inventories	40	1
Deferred fuel and purchased gas costs, net	(273)	(48)
Prepayments	(1)	(3)
Accounts payable	(28)	(33)
Accrued interest, payroll and taxes	50	67
Net realized and unrealized changes related to derivative activities	69
Asset retirement obligations	(29)	(63)
Other operating assets and liabilities	197	(99)
Net cash provided by operating activities	2,206	2,470
Investing Activities
Plant construction and other property additions (including nuclear fuel)	(1,696)	(1,901)
Purchases of nuclear fuel	(82)	(133)
Acquisition of solar development projects	(98)	(16)
Proceeds from sales of securities	651	654
Purchases of securities	(681)	(681)
Other	(47)	(29)
Net cash used in investing activities	(1,953)	(2,106)
Financing Activities
Issuance (repayment) of short-term debt, net	392	255
Issuance of long-term debt	700	1,500
Repayment of affiliated current borrowings, net	(18)	(226)
Repayment of long-term debt	(951)	(679)
Common dividend payments	(361)	(1,199)
Other	(7)	(10)
Net cash provided by (used in) financing activities	(245)	(359)
Increase (decrease) in cash, restricted cash and equivalents	8	5
Cash, restricted cash and equivalents at beginning of period	24	11
Cash, restricted cash and equivalents at end of period	32	16
Significant noncash investing and financing activities:
Accrued capital expenditures	96	158
Dominion Energy Gas Holdings, LLC
Operating Activities
Net income	317	302
Adjustments to reconcile net income including noncontrolling interests to net cash provided by operating activities:
Depreciation, depletion and amortization (including nuclear fuel)	173	167
Deferred income taxes and investment tax credits	86	176
Gains on sales of assets and equity method investments	(109)	(61)
Charge associated with FERC-regulated plant disallowance	129
Other adjustments	5	(9)
Changes in:
Accounts receivable	98	88
Inventories	(25)	(20)
Deferred fuel and purchased gas costs, net	8	11
Prepayments	46	39
Accounts payable	(110)	(68)
Accrued interest, payroll and taxes	(46)	(28)
Pension and other postretirement benefits	(108)	(98)
Other operating assets and liabilities	23	(13)
Affiliated receivables and payables	(25)	(11)
Net cash provided by operating activities	462	475
Investing Activities
Plant construction and other property additions (including nuclear fuel)	(550)	(535)
Proceeds from assignments of shale development rights	109	5
Other	(14)	(7)
Net cash used in investing activities	(455)	(537)
Financing Activities
Issuance (repayment) of short-term debt, net	(488)	160
Issuance of long-term debt	500
Repayment of affiliated current borrowings, net	6	(84)
Distribution payments to parent	(25)	(15)
Other	(4)
Net cash provided by (used in) financing activities	(11)	61
Increase (decrease) in cash, restricted cash and equivalents	(4)	(1)
Cash, restricted cash and equivalents at beginning of period	30	43
Cash, restricted cash and equivalents at end of period	26	42
Significant noncash investing and financing activities:
Accrued capital expenditures	$ 43	$ 54