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Short-Term Debt And Credit Agreements (Tables) | 12 Months Ended
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Dec. 31, 2018
Schedule of Line of Credit Facilities | Commercial paper and letters of credit outstanding, as well as capacity available under credit facilities were as follows:
|  | Facility Limit |  |  | Outstanding Commercial Paper(1) |  |  | Outstanding Letters of Credit |  |  | Facility Capacity Available |
(millions) |  |  |  |  |  |  |  |  |  |  |  |
At December 31, 2018 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Joint revolving credit facility(2) |  | $ | 6,000 |  |  |  | $ 324 |  |  |  | $88 |  |  | $ | 5,588 |
At December 31, 2017 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Joint revolving credit facility(3) |  | $ | 5,000 |  |  |  | $3,298 |  |  |  | $— |  |  | $ | 1,702 |
Joint revolving credit facility(3) |  |  | 500 |  |  |  | — |  |  |  | 76 |  |  |  | 424 |
Total |  | $ | 5,500 |  |  |  | $3,298 |  |  |  | $76 |  |  | $ | 2,126 |
(1) | The weighted-average interest rates of the outstanding commercial paper supported by Dominion Energy’s credit facilities were 2.93% and 1.61% at December 31, 2018 and 2017, respectively.
(2) | This credit facility matures in March 2023 and can be used by the Companies to support bank borrowings and the issuance of commercial paper, as well as to support up to a combined $2.0 billion of letters of credit.
(3) | These credit facilities were replaced in March 2018 with a $6.0 billion joint revolving credit facility. The facilities were scheduled to mature in April 2020 and were used to support bank borrowings and the issuance of commercial paper, as well as to support up to a combined $2.0 billion of letters of credit.
Virginia Electric and Power Company |
Schedule of Line of Credit Facilities | Virginia Power’s share of commercial paper and letters of credit outstanding under its joint credit facilities with Dominion Energy, Dominion Energy Gas and Questar Gas were as follows:
|  | Facility Limit |  |  | Outstanding Commercial Paper(1) |  |  | Outstanding Letters of Credit |
(millions) |  |  |  |  |  |  |  |  |
At December 31, 2018 |  |  |  |  |  |  |  |  |  |  |  |
Joint revolving credit facility(2) |  |  | $6,000 |  |  |  | $314 |  |  |  | $16 |
At December 31, 2017 |  |  |  |  |  |  |  |  |  |  |  |
Joint revolving credit facility(3) |  |  | $5,000 |  |  |  | $542 |  |  |  | $— |
Joint revolving credit facility(3) |  |  | 500 |  |  |  | — |  |  |  | — |
Total |  |  | $5,500 |  |  |  | $542 |  |  |  | $— |
(1) | The weighted-average interest rates of the outstanding commercial paper supported by these credit facilities were 2.94% and 1.65% at December 31, 2018 and 2017, respectively.
(2) | The full amount of the facility is available to Virginia Power, less any amounts outstanding to co-borrowers Dominion Energy, Dominion Energy Gas and Questar Gas. The sub-limit for Virginia Power is set within the facility limit but can be changed at the option of the Companies multiple times per year. At December 31, 2018, the sub-limit for Virginia Power was $1.5 billion. If Virginia Power has liquidity needs in excess of its sub-limit, the sub-limit may be changed or such needs may be satisfied through short-term intercompany borrowings from Dominion Energy. This credit facility matures in March 2023 and can be used to support bank borrowings and the issuance of commercial paper, as well as to support up to $2.0 billion (or the sub-limit, whichever is less) of letters of credit.
(3) | These facilities were replaced in March 2018 with a $6.0 billion joint revolving credit facility. The full amount of the facilities was available to Virginia Power, less any amounts outstanding to co-borrowers Dominion Energy, Dominion Energy Gas and Questar Gas. These facilities were scheduled to mature in April 2020 and were used to support bank borrowings and the issuance of commercial paper, as well as to support up to $2.0 billion (or the sub-limit, whichever is less) of letters of credit.
Dominion Energy Gas Holdings, LLC |
Schedule of Line of Credit Facilities | Dominion Energy Gas’ share of commercial paper and letters of credit outstanding under its joint credit facilities with Dominion Energy, Virginia Power and Questar Gas were as follows:
|  | Facility Limit |  |  | Outstanding Commercial Paper(1) |  |  | Outstanding Letters of Credit |
(millions) |  |  |  |  |  |  |  |  |
At December 31, 2018 |  |  |  |  |  |  |  |  |  |  |  |
Joint revolving credit facility(2) |  |  | $1,500 |  |  |  | $ 10 |  |  |  | $— |
At December 31, 2017 |  |  |  |  |  |  |  |  |  |  |  |
Joint revolving credit facility(3) |  |  | $1,000 |  |  |  | $629 |  |  |  | $— |
Joint revolving credit facility(3) |  |  | 500 |  |  |  | — |  |  |  | — |
Total |  |  | $1,500 |  |  |  | $629 |  |  |  | $— |
(1) | The weighted-average interest rates of the outstanding commercial paper supported by these credit facilities were 2.58% and 1.57% at December 31, 2018 and 2017, respectively.
(2) | A maximum of $1.5 billion of the facility is available to Dominion Energy Gas, assuming adequate capacity is available after giving effect to uses by co-borrowers Dominion Energy, Virginia Power and Questar Gas. The sub-limit for Dominion Energy Gas is set within the facility limit but can be changed at the option of the Companies multiple times per year. At December 31, 2018, the sub-limit for Dominion Energy Gas was $750 million. If Dominion Energy Gas has liquidity needs in excess of its sub-limit, the sub-limit may be changed or such needs may be satisfied through short-term intercompany borrowings from Dominion Energy. This credit facility matures in March 2023 and can be used to support bank borrowings and the issuance of commercial paper, as well as to support up to $1.5 billion (or the sub-limit, whichever is less) of letters of credit.
(3) | These facilities were replaced in March 2018 with a $6.0 billion joint revolving credit facility. A maximum of a combined $1.5 billion of the facilities was available to Dominion Energy Gas, assuming adequate capacity was available after giving effect to uses by co-borrowers Dominion Energy, Virginia Power and Questar Gas. These credit facilities were scheduled to mature in April 2020 and were used to support bank borrowings and the issuance of commercial paper, as well as to support up to $1.5 billion (or the sub-limit, whichever is less) of letters of credit.
SCANA |
Schedule of Line of Credit Facilities | At closing of the SCANA Combination, commercial paper and letters of credit outstanding, as well as capacity available under SCANA’s existing credit facilities were as follows:
|  | SCANA Corporation |  |  | SCE&G |  |  | PSNC |  |  | Total |
(millions, except percentages) |  |  |  |  |  |  |  |  |  |  |  |
Total facility limit |  | $ | 400 |  |  | $ | 1,200 | (1) |  | $ | 200 |  |  | $ | 1,800 |
Letters of credit advances |  |  | 40 | (2) |  |  | — |  |  |  | — |  |  |  | 40 |
Weighted-average interest rate |  |  | 3.87 | % |  |  | n/a |  |  |  | n/a |  |  |  | 3.87 | %
Outstanding commercial paper |  |  | 2 |  |  |  | 73 |  |  |  | 98 |  |  |  | 173 |
Weighted-average interest rate |  |  | 3.65 | % |  |  | 3.82 | % |  |  | 3.49 | % |  |  | 3.63 | %
Outstanding letters of credit |  |  | 37 |  |  |  | — |  |  |  | — |  |  |  | 37 |
Facility capacity available |  | $ | 321 |  |  | $ | 1,127 |  |  | $ | 102 |  |  | $ | 1,550 |
(1) | Includes South Carolina Fuel Company, Inc.’s $500 million credit facility.
(2) | In January 2019, SCANA repaid $40 million in letter of credit advances.

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- Definition Tabular disclosure of short-term or long-term contractual arrangements with lenders, including letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. + 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 210.5-02.19(b),22(b)) -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 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(e),(f)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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