XML 91 R69.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Acquisitions and Dispositions (Schedule of Long Term Debt) (Detail) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2018 | Dec. 31, 2017
Business Acquisition [Line Items] |  |  |
Current maturities of long-term debt | [1],[2] | $ 3,624 | $ 3,078
Unamortized discount, premium and debt issuance costs, net |  | (248) | $ (245)
SCANA |  |  |
Business Acquisition [Line Items] |  |  |
Total principal |  | 6,795 |
Current maturities of long-term debt |  | (59) |
Unamortized discount, premium and debt issuance costs, net |  | (29) |
Total long-term debt |  | 6,707 |
Variable rate debt |  | $ 68 |
Variable rate debt, interest rate |  | 1.72% |
SCANA | Unsecured Medium Term Notes due Two Thousand Twenty to Two Thousand Twenty Two [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Weighted- average Coupon (percentage) | [3] | 5.42% |
Total principal |  | $ 800 |
SCANA | Unsecured Senior Notes due Two Thousand Nineteen to Two Thousand Thirty Four [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Weighted- average Coupon (percentage) | [3] | 3.44% |
Total principal |  | $ 70 |
SCANA | First Mortgage Bonds due Two Thousand Twenty One to Two Thousand Sixty Five [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Weighted- average Coupon (percentage) | [3] | 5.52% |
Total principal |  | $ 4,990 |
SCANA | Genco Notes due Two Thousand Nineteen to Two Thousand Twenty Four [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Weighted- average Coupon (percentage) | [3] | 5.49% |
Total principal |  | $ 40 |
SCANA | Industrial and Pollution Control Bonds due Two Thousand Twenty Eight to Two Thousand Thirty Eight [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Weighted- average Coupon (percentage) | [3],[4] | 3.52% |
Total principal | [4] | $ 122 |
SCANA | Psnc Senior Debentures and Notes due Two Thousand Twenty to Two Thousand Forty Seven [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Weighted- average Coupon (percentage) | [3] | 5.07% |
Total principal |  | $ 700 |
SCANA | Others due Two Thousand Nineteen to Two Thousand Twenty Seven [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Weighted- average Coupon (percentage) | [3] | 3.46% |
Total principal |  | $ 73 |
[1] | 2017 excludes $250 million of Dominion Energy Questar Pipeline's senior notes that matured in February 2018 using proceeds from the January 2018 issuance, through private placements, of $100 million and $150 million of senior notes that mature in 2028 and 2038, respectively.
[2] | Includes $20 million of estimated mandatory prepayments due within one year based on estimated cash flows in excess of debt service at SBL Holdco and Dominion Solar Projects III, Inc.
[3] | Represents weighted-average coupon rates for debt outstanding at closing of the SCANA Combination.
[4] | Includes variable rate debt of $68 million, with a weighted-average interest rate of 1.72%, which is hedged by fixed swaps

X
- Definition Interest Rate Of Variable Rate Debt + References No definition available. + Details
Name: | d_InterestRateOfVariableRateDebt
Namespace Prefix: | d_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Longterm Debt Gross Current Maturities + References No definition available. + Details
Name: | d_LongtermDebtGrossCurrentMaturities
Namespace Prefix: | d_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Variable Rate Debt Carrying Value + References No definition available. + Details
Name: | d_VariableRateDebtCarryingValue
Namespace Prefix: | d_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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_BusinessAcquisitionLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=109500613&loc=SL6031897-161870 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: 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)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
Name: | us-gaap_DebtInstrumentCarryingAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of unamortized debt discount (premium) and debt issuance costs. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b)(2) -URI http://asc.fasb.org/extlink&oid=109500613&loc=SL6031897-161870 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28555-108399 + Details
Name: | us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Weighted average interest rate of debt outstanding. + References No definition available. + Details
Name: | us-gaap_DebtWeightedAverageInterestRate
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. + 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) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_LongTermDebtNoncurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=d_SCANAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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

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

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

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

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

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