XML 91 R42.htm IDEA: XBRL DOCUMENT
v3.19.3.a.u2

Significant Accounting Policies (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2019
Accounting Policies [Abstract] |
Schedule of Checks Outstanding but Not Yet Presented for Payment | The following table illustrates the checks outstanding but not yet presented for payment and recorded in accounts payable for the Companies:
At December 31, |  | 2019 |  |  | 2018 |
(millions) |  |  |  |  |  |
Dominion Energy |  | $ | 29 |  |  | $ | 35 |
Virginia Power |  |  | 9 |  |  |  | 16 |
Dominion Energy Gas |  |  | 6 |  |  |  | 7 |
Reconciliation of Total Cash, Restricted Cash and Equivalents | The following table provides a reconciliation of the total cash, restricted cash and equivalents reported within the Companies’ Consolidated Balance Sheets to the corresponding amounts reported within the Companies’ Consolidated Statements of Cash Flows for the years ended December 31, 2019, 2018 and 2017:
|  | Cash, Restricted Cash and Equivalents at End/Beginning of Year |
|  | December 31, 2019 |  |  | December 31, 2018 |  |  | December 31, 2017 |  |  | December 31, 2016 |
(millions) |  |  |  |  |  |  |  |  |  |  |  |
Dominion Energy |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents |  |  | $166 |  |  |  | $268 |  |  |  | $120 |  |  |  | $261 |
Restricted cash and equivalents (1) |  |  | 103 |  |  |  | 123 |  |  |  | 65 |  |  |  | 61 |
Cash, restricted cash and equivalents shown in the Consolidated Statements of Cash Flows |  |  | $269 |  |  |  | $391 |  |  |  | $185 |  |  |  | $322 |
Virginia Power |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents |  |  | $ 17 |  |  |  | $ 29 |  |  |  | $ 14 |  |  |  | $ 11 |
Restricted cash and equivalents (1) |  |  | 7 |  |  |  | 9 |  |  |  | 10 |  |  |  | — |
Cash, restricted cash and equivalents shown in the Consolidated Statements of Cash Flows |  |  | $ 24 |  |  |  | $ 38 |  |  |  | $ 24 |  |  |  | $ 11 |
Dominion Energy Gas |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents (2) |  |  | $ 27 |  |  |  | $108 |  |  |  | $ 18 |  |  |  | $ 76 |
Restricted cash and equivalents (1) |  |  | 12 |  |  |  | 90 |  |  |  | 39 |  |  |  | 45 |
Cash, restricted cash and equivalents shown in the Consolidated Statements of Cash Flows |  |  | $ 39 |  |  |  | $198 |  |  |  | $ 57 |  |  |  | $121 |
(1) | Restricted cash and equivalent balances are presented within other current assets in the Companies’ Consolidated Balance Sheets.
(2) | At December 31, 2018, 2017 and 2016, Dominion Energy Gas had $9 million, $3 million and $14 million of cash and cash equivalents included in current assets of discontinued operations, respectively.
Schedule of Depreciation Rates | The Companies’ average composite depreciation rates on utility property, plant and equipment are as follows:
Year Ended December 31, |  | 2019 |  |  | 2018 |  |  | 2017 |
(percent) |  |  |  |  |  |  |  |  |
Dominion Energy |  |  |  |  |  |  |  |  |  |  |  |
Generation |  |  | 2.84 |  |  |  | 2.71 |  |  |  | 2.94 |
Transmission |  |  | 2.47 |  |  |  | 2.54 |  |  |  | 2.55 |
Distribution |  |  | 2.80 |  |  |  | 2.97 |  |  |  | 3.00 |
Storage |  |  | 2.40 |  |  |  | 2.40 |  |  |  | 2.48 |
General and other |  |  | 4.04 |  |  |  | 4.20 |  |  |  | 4.38 |
Virginia Power |  |  |  |  |  |  |  |  |  |  |  |
Generation |  |  | 2.94 |  |  |  | 2.71 |  |  |  | 2.94 |
Transmission |  |  | 2.54 |  |  |  | 2.52 |  |  |  | 2.54 |
Distribution |  |  | 3.14 |  |  |  | 3.31 |  |  |  | 3.32 |
General and other |  |  | 4.40 |  |  |  | 4.52 |  |  |  | 4.68 |
Dominion Energy Gas (1) |  |  |  |  |  |  |  |  |  |  |  |
Transmission |  |  | 2.43 |  |  |  | 2.66 |  |  |  | 2.67 |
Storage |  |  | 2.53 |  |  |  | 2.42 |  |  |  | 2.51 |
General and other |  |  | 4.59 |  |  |  | 4.18 |  |  |  | 5.08 |
(1) | Excludes rates for depreciation reported as discontinued operations.
Property, Plant and Equipment | Dominion Energy’s nonutility property, plant and equipment is depreciated using the straight-line method over the following estimated useful lives:
Asset |  | Estimated Useful Lives |
Merchant generation-nuclear |  |  | 44 years |
Merchant generation-other |  |  | 15-30 years |
Nonutility gas gathering and processing |  |  | 3-50 years |
LNG facility |  |  | 40 years |
General and other |  |  | 5-59 years |

X
- Definition Property Plant And Equipment Estimated Useful Life Table [Text Block] + References No definition available. + Details
Name: | d_PropertyPlantAndEquipmentEstimatedUsefulLifeTableTextBlock
Namespace Prefix: | d_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Schedule of Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents [Table Text Block] + References No definition available. + Details
Name: | d_ScheduleOfCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsTableTextBlock
Namespace Prefix: | d_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_AccountingPoliciesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the (a) carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business (accounts payable); (b) other payables; and (c) accrued liabilities. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). An alternative caption includes accrued expenses. + References No definition available. + Details
Name: | us-gaap_ScheduleOfAccountsPayableAndAccruedLiabilitiesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of public utility physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, deprecation expense and method used, including composite depreciation, and accumulated deprecation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 980 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=84167750&loc=d3e42232-110370 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.13(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_ScheduleOfPublicUtilityPropertyPlantAndEquipmentTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration