XML 86 R158.htm IDEA: XBRL DOCUMENT
v3.19.3

Long-Term Debt Long Term Debt (Schedule of Equity Units) (Detail) - USD ($) shares in Millions, $ in Millions |  | 1 Months Ended |  |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Aug. 15, 2016 | Jul. 31, 2017 | Jul. 31, 2016 | Apr. 30, 2016 | Dec. 31, 2018 | Dec. 31, 2017 | May 31, 2017 | Aug. 31, 2016 | Mar. 31, 2016 | Jul. 31, 2014 | Jun. 30, 2013
Capital Unit [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Stock Purchase Contract Liability |  |  |  |  |  |  | $ 47.0 | $ 111.0 |  |  |  |  |
Remarketable Subordinated Notes |  |  |  |  |  |  |  |  |  |  |  |  |
Capital Unit [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Total Long-term Debt |  |  |  |  |  |  |  |  |  |  |  |  | $ 550.0
Capital Unit, Class A |  |  |  |  |  |  |  |  |  |  |  |  |
Capital Unit [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Units Issued |  | 28.0 | [1] | 12.5 |  |  |  |  |  |  |  |  |
Total Net Proceeds | [1] | $ 1,374.8 |  |  |  |  |  |  |  |  |  |  |
Total Long-term Debt |  |  |  |  |  |  |  |  |  | $ 1,400.0 |  |  |
Stock Purchase Contract Annual Rate (Percentage) | [1] | 4.75% |  |  |  |  |  |  |  |  |  |  |
Stock Purchase Contract Liability | [1],[2] | $ 190.6 |  |  |  |  |  |  |  |  |  |  |
Stock Purchase Settlement Date |  | Aug. 15, 2019 |  |  |  |  |  |  |  |  |  |  |
Capital Unit, Class A | Remarketable Subordinated Notes |  |  |  |  |  |  |  |  |  |  |  |  |
Capital Unit [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Units Issued |  |  |  | 12.5 | 8.5 | 8.5 |  |  |  |  |  |  |
Total Long-term Debt |  | $ 1,400.0 | [1] |  |  |  |  |  | $ 1,000.0 |  | $ 550.0 | $ 1,000.0 | $ 550.0
RSN Annual Interest Rate |  | 2.00% | [1],[3] |  |  |  |  |  | 1.50% |  | 1.07% |  |
[1] | 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.
[2] | 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.
[3] | Annual interest rate applies to each of the Series A-1 RSNs and Series A-2 RSNs.

X
- Definition Equity Units, Contract Annual Rate + References No definition available. + Details
Name: | d_EquityUnitsContractAnnualRate
Namespace Prefix: | d_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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 Stock purchase settlement date. + References No definition available. + Details
Name: | d_StockPurchaseSettlementDate
Namespace Prefix: | d_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

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
- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The cash inflow resulting from the sale of an interest in a corporate unit during the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3255-108585 + Details
Name: | us-gaap_ProceedsFromSaleOfInterestInCorporateUnit
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Number of new stock issued during the period. + References Reference 1: 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(29)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 4: 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(28)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_StockIssuedDuringPeriodSharesNewIssues
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

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

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