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Commitments and Contingencies (Lease Commitments) (Details) $ in Millions | 12 Months Ended
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Dec. 31, 2016 USD ($)
Loss Contingencies [Line Items] |
2017 | $ 72
2018 | 69
2019 | 58
2020 | 39
2021 | 32
Thereafter | 238
Total | 508
Virginia Electric and Power Company |
Loss Contingencies [Line Items] |
2017 | 33
2018 | 30
2019 | 24
2020 | 20
2021 | 16
Thereafter | 32
Total | 155
Dominion Gas Holdings, LLC |
Loss Contingencies [Line Items] |
2017 | 27
2018 | 26
2019 | 21
2020 | 8
2021 | 5
Thereafter | 18
Total | 105
Dominion Questar Corporation | Corporate office |
Loss Contingencies [Line Items] |
Amount included in property plant and equipment | 30
Amount included in other deferred credits and other liabilities | 35
Amount recorded in depreciation, depletion and amortization (less than $1 million) | $ 1

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- Definition Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal, through the balance sheet date and due to be paid more than one year (or one operating cycle, if longer) after the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6455398&loc=d3e45280-112737 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6455314&loc=d3e45023-112735 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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