XML 169 R147.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Long-Term Debt Long Term Debt (Schedule of Equity Units) (Parenthetical) (Detail) - USD ($) | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Aug. 31, 2016 | Aug. 15, 2016
Capital Unit [Line Items] |  |  |  |  |
Stock Purchase Contract Liability |  | $ 47,000,000 | $ 111,000,000 |  |
Total payments |  | $ 64,000,000 | $ 101,000,000 |  |
Capital Unit, Class A |  |  |  |  |
Capital Unit [Line Items] |  |  |  |  |
Stock Purchase Contract Liability | [1],[2] |  |  |  | $ 190,600,000
Total Long-term Debt |  |  |  | $ 1,400,000,000 |
Capital Unit, Class A | Remarketable Subordinated Notes, 2016 Series A-1, due August 15, 2021 |  |  |  |  |
Capital Unit [Line Items] |  |  |  |  |
Total Long-term Debt |  |  |  |  | 700,000,000
Capital Unit, Class A | Remarketable Subordinated Notes, 2016 Series A-2, due August 15, 2024 |  |  |  |  |
Capital Unit [Line Items] |  |  |  |  |
Total Long-term Debt |  |  |  |  | $ 700,000,000
[1] | Payments of $64 million and $101 million were made in 2018 and 2017, respectively, including payments for the remarketed 2014 Series A notes. The stock purchase contract liability was $47 million and $111 million at December 31, 2018 and 2017, respectively.
[2] | The maturity dates of the $700 million Series A-1 RSNs and $700 million Series A-2 RSNs are August 15, 2021 and August 15, 2024, respectively.

X
- Definition Payments under Stock Purchase Contract + References No definition available. + Details
Name: | d_PaymentsUnderStockPurchaseContract
Namespace Prefix: | d_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Remarketable Subordinated Notes, Present Value of Stock Purchase Contract Payments + References No definition available. + Details
Name: | d_RemarketableSubordinatedNotesPresentValueOfStockPurchaseContractPayments
Namespace Prefix: | d_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_CapitalUnitLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28551-108399 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400 + Details
Name: | us-gaap_DebtInstrumentFaceAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_CapitalUnitsByClassAxis=us-gaap_CapitalUnitClassAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=d_RemarketableSubordinatedNotes2016SeriesA1DueAugust152021Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=d_RemarketableSubordinatedNotes2016SeriesA2DueAugust152024Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |