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Significant Financing Transactions | 3 Months Ended
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Mar. 31, 2017
Debt Disclosure [Abstract] |
Significant Financing Transactions | Significant Financing Transactions Credit Facilities and Short-term Debt The Companies use short-term debt to fund working capital requirements and as a bridge to long-term debt financings. The levels of borrowing may vary significantly during the course of the year, depending upon the timing and amount of cash requirements not satisfied by cash from operations. In addition, Dominion utilizes cash and letters of credit to fund collateral requirements. Collateral requirements are impacted by commodity prices, hedging levels, Dominion’s credit ratings and the credit quality of its counterparties. Dominion At March 31, 2017, Dominion’s commercial paper and letters of credit outstanding, as well as its capacity available under credit facilities, were as follows:
| Facility Limit | Outstanding Commercial Paper | Outstanding Letters of Credit | Facility Capacity Available
(millions) |  |  |  |
Joint revolving credit facility(1) | $ | 5,000 |  | $ | 2,627 |  | $ | — |  | $ | 2,373 |
Joint revolving credit facility(1) | 500 |  | — |  | 76 |  | 424 |
Total | $ | 5,500 |  | $ | 2,627 |  | $ | 76 |  | $ | 2,797 |
(1) | These credit facilities mature in April 2020 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.
Questar Gas’ short-term financing is supported through its access as co-borrower to the two joint revolving credit facilities discussed above with Dominion, Virginia Power and Dominion Gas. At March 31, 2017 the aggregate sub-limit for Questar Gas was $250 million. In addition to the credit facilities mentioned above, SBL Holdco has $30 million of credit facilities which have a stated maturity date of December 2017 with automatic one-year renewals through the maturity of the SBL Holdco term loan agreement in 2023. As of March 31, 2017, no amounts were outstanding under these facilities. Virginia Power Virginia Power’s short-term financing is supported through its access as co-borrower to the two joint revolving credit facilities. These credit facilities can be used for working capital, as support for the combined commercial paper programs of the Companies and for other general corporate purposes. At March 31, 2017, 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) |  |  |
Joint revolving credit facility(1) | $ | 5,000 |  | $ | 40 |  | $ | — |
Joint revolving credit facility(1) | 500 |  | — |  | 1 |
Total | $ | 5,500 |  | $ | 40 |  | $ | 1 |
(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 the Companies multiple times per year. At March 31, 2017, the aggregate sub-limit for Virginia Power was $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. These credit facilities mature in April 2020 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.
In addition to the credit facility commitments mentioned above, Virginia Power also has a $100 million credit facility with a maturity date of April 2020. As of March 31, 2017, this facility supports $100 million of certain variable rate tax-exempt financings of Virginia Power. Dominion Gas Dominion Gas’ short-term financing is supported by its access as co-borrower to the two joint revolving credit facilities. These credit facilities can be used for working capital, as support for the combined commercial paper programs of the Companies and for other general corporate purposes. At March 31, 2017, 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) |  |  |
Joint revolving credit facility(1) | $ | 1,000 |  | $ | 399 |  | $ | — |
Joint revolving credit facility(1) | 500 |  | — |  | — |
Total | $ | 1,500 |  | $ | 399 |  | $ | — |
(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. At March 31, 2017, the aggregate sub-limit for Dominion Gas was $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. These credit facilities mature in April 2020 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.
Long-term Debt In January 2017, Dominion issued $400 million of 1.875% senior notes and $400 million of 2.75% senior notes that mature in 2019 and 2022, respectively. In March 2017, Dominion issued through private placement $300 million of 3.496% senior notes that mature in 2024. Also in March 2017, Dominion issued an additional $100 million of its 3.90% senior notes that mature in 2025. In March 2017, Virginia Power issued $750 million of 3.50% senior notes that mature in 2027.

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- Definition The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19,20,22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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