XML 95 R73.htm IDEA: XBRL DOCUMENT v3.7.0.1
Significant Financing Transactions (Commercial Paper, Bank Loans and Letters of Credit Outstanding) (Details)
Mar. 31, 2017
USD ($)
Line of Credit Facility [Line Items]  
Facility Limit $ 5,500,000,000
Outstanding Commercial Paper 2,627,000,000
Outstanding Letters of Credit 76,000,000
Facility Capacity Available 2,797,000,000
Virginia Electric and Power Company  
Line of Credit Facility [Line Items]  
Facility Limit 5,500,000,000 [1]
Outstanding Commercial Paper 40,000,000
Outstanding Letters of Credit 1,000,000
Dominion Gas Holdings, LLC  
Line of Credit Facility [Line Items]  
Facility Limit 1,500,000,000 [2]
Outstanding Commercial Paper 399,000,000
Outstanding Letters of Credit 0
Joint Revolving Credit Facility 5 Billion and Joint Revolving Credit Facility 500 Million | Virginia Electric and Power Company  
Line of Credit Facility [Line Items]  
Facility Limit 2,000,000,000.0
Joint Revolving Credit Facility 5 Billion and Joint Revolving Credit Facility 500 Million | Dominion Gas Holdings, LLC  
Line of Credit Facility [Line Items]  
Facility Limit 1,500,000,000.0
Joint Revolving Credit Facility 5 Billion and Joint Revolving Credit Facility 500 Million | Line of Credit | Dominion Gas Holdings, LLC  
Line of Credit Facility [Line Items]  
Facility Limit 500,000,000
Joint Revolving Credit Facility 5 Billion and Joint Revolving Credit Facility 500 Million | Letter of Credit  
Line of Credit Facility [Line Items]  
Facility Limit 2,000,000,000.0
Joint Revolving Credit Facility 5 Billion and Joint Revolving Credit Facility 500 Million | Letter of Credit | Virginia Electric and Power Company  
Line of Credit Facility [Line Items]  
Facility Limit 2,000,000,000.0
Joint Revolving Credit Facility 5 Billion and Joint Revolving Credit Facility 500 Million | Letter of Credit | Dominion Gas Holdings, LLC  
Line of Credit Facility [Line Items]  
Facility Limit 1,500,000,000.0
Credit Facility 4 Billion  
Line of Credit Facility [Line Items]  
Facility Limit 5,000,000,000 [3]
Outstanding Commercial Paper 2,627,000,000 [3]
Outstanding Letters of Credit 0 [3]
Facility Capacity Available 2,373,000,000 [3]
Credit Facility 4 Billion | Virginia Electric and Power Company  
Line of Credit Facility [Line Items]  
Facility Limit 5,000,000,000 [1]
Outstanding Commercial Paper 40,000,000 [1]
Outstanding Letters of Credit 0 [1]
Credit Facility 4 Billion | Dominion Gas Holdings, LLC  
Line of Credit Facility [Line Items]  
Facility Limit 1,000,000,000 [2]
Outstanding Commercial Paper 399,000,000 [2]
Outstanding Letters of Credit 0 [2]
Credit Facility 500 Million  
Line of Credit Facility [Line Items]  
Facility Limit 500,000,000 [3]
Outstanding Commercial Paper 0 [3]
Outstanding Letters of Credit 76,000,000 [3]
Facility Capacity Available 424,000,000 [3]
Credit Facility 500 Million | Virginia Electric and Power Company  
Line of Credit Facility [Line Items]  
Facility Limit 500,000,000 [1]
Outstanding Commercial Paper 0 [1]
Outstanding Letters of Credit 1,000,000 [1]
Credit Facility 500 Million | Dominion Gas Holdings, LLC  
Line of Credit Facility [Line Items]  
Facility Limit 500,000,000 [2]
Outstanding Commercial Paper 0 [2]
Outstanding Letters of Credit $ 0 [2]
[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.
[2] 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.
[3] 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.