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Short-Term Debt and Credit Agreements (Tables) | 12 Months Ended
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Dec. 31, 2016
Short term Debt [Line Items] |
Commercial paper bank loans and letters of credit outstanding as well as capacity available under 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 |  |  | Outstanding Letters of Credit |  | Facility Capacity Available |
(millions) |  |  |  |  |
At December 31, 2016 |  |  |  |  |
Joint revolving credit facility(1)(2) | $ | 5,000 |  | $ | 3,155 |  |  | $ | — |  | $ | 1,845 |
Joint revolving credit facility(1) | 500 |  | — |  |  | 85 |  | 415 |
Total | $ | 5,500 |  | $ | 3,155 |  | (3) | $ | 85 |  | $ | 2,260 |
At December 31, 2015 |  |  |  |  |  |  |  |  |
Joint revolving credit facility(1) | $ | 4,000 |  | $ | 3,353 |  |  | $ | — |  | $ | 647 |
Joint revolving credit facility(1) | 500 |  | 156 |  |  | 59 |  | 285 |
Total | $ | 4,500 |  | $ | 3,509 |  | (3) | $ | 59 |  | $ | 932 |
(1) | In May 2016, the maturity dates for these facilities were extended from April 2019 to April 2020. These credit facilities can be 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.
(2) | In January 2016, this facility limit was increased from $4.0 billion to $5.0 billion.
(3) | The weighted-average interest rates of the outstanding commercial paper supported by Dominion’s credit facilities were 1.05% and 0.62% at December 31, 2016 and 2015, respectively
Virginia Electric and Power Company |
Short term Debt [Line Items] |
Commercial paper bank loans and letters of credit outstanding as well as capacity available under credit facilities | Virginia Power's share of commercial paper and letters of credit outstanding under its joint credit facilities with Dominion, Dominion Gas and Questar Gas were as follows:
| Facility Limit(1) |  | Outstanding Commercial Paper |  |  | Outstanding Letters of Credit |
(millions) |  |  |  |
At December 31, 2016 |  |  |  |
Joint revolving credit facility(1)(2) | $ | 5,000 |  | $ | 65 |  |  | $ | — |
Joint revolving credit facility(1) | 500 |  | — |  |  | 1 |
Total | $ | 5,500 |  | $ | 65 |  | (3) | $ | 1 |
At December 31, 2015 |  |  |  |  |  |  |
Joint revolving credit facility(1) | $ | 4,000 |  | $ | 1,500 |  |  | $ | — |
Joint revolving credit facility(1) | 500 |  | 156 |  |  | — |
Total | $ | 4,500 |  | $ | 1,656 |  | (3) | $ | — |
(1) | The full amount of the facilities is available to Virginia Power, less any amounts outstanding to co-borrowers Dominion, Dominion Gas and Questar Gas. Sub-limits for Virginia Power are set within the facility limit but can be changed at the option of Dominion, Dominion Gas and Questar Gas multiple times per year. At December 31, 2016, the sub-limit for Virginia Power was an aggregate $2.0 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. In May 2016, the maturity dates for these facilities were extended from April 2019 to April 2020. These credit facilities 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.
(2) | In January 2016, this facility limit was increased from $4.0 billion to $5.0 billion.
(3) | The weighted-average interest rates of the outstanding commercial paper supported by these credit facilities were 0.97% and 0.60% at December 31, 2016 and 2015, respectively.
Dominion Gas Holdings, LLC |
Short term Debt [Line Items] |
Commercial paper bank loans and letters of credit outstanding as well as capacity available under credit facilities | Dominion Gas' share of commercial paper and letters of credit outstanding under its joint credit facilities with Dominion, Virginia Power and Questar Gas were as follows:
| Facility Limit(1) |  | Outstanding Commercial Paper |  |  | Outstanding Letters of Credit |
(millions) |  |  |  |
At December 31, 2016 |  |  |  |
Joint revolving credit facility(1) | $ | 1,000 |  | $ | 460 |  |  | $ | — |
Joint revolving credit facility(1) | 500 |  | — |  |  | — |
Total | $ | 1,500 |  | $ | 460 |  | (2) | $ | — |
At December 31, 2015 |  |  |  |  |  |  |
Joint revolving credit facility(1) | $ | 1,000 |  | $ | 391 |  |  | $ | — |
Joint revolving credit facility(1) | 500 |  | — |  |  | — |
Total | $ | 1,500 |  | $ | 391 |  | (2) | $ | — |
(1) | A maximum of a combined $1.5 billion of the facilities is available to Dominion Gas, assuming adequate capacity is available after giving effect to uses by co-borrowers Dominion, Virginia Power and Questar Gas. Sub-limits for Dominion Gas are set within the facility limit but can be changed at the option of the Companies multiple times per year. In November 2016, the aggregate sub-limit for Dominion Gas was decreased from $750 million to $500 million. If Dominion 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. In May 2016, the maturity dates for these facilities were extended from April 2019 to April 2020. These credit facilities 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.
(2) | The weighted-average interest rate of the outstanding commercial paper supported by these credit facilities was 1.00% and 0.63% at December 31, 2016 and 2015, respectively.

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- Definition Schedule Of Commercial paper Bank Loans And Letters Of Credit Outstanding As Well As Capacity Available Under Credit Facilities + References No definition available. + Details
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