XML 76 R105.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Fair Value Measurements (Financial Instruments' Carrying Amounts and Fair Values) (Detail) - USD ($)
$ in Millions
Dec. 31, 2019
Dec. 31, 2018
Carrying Amount    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt, including securities due within one year [1] $ 32,055 $ 29,952
Credit facility borrowings 0 73
Junior subordinated notes [2] 4,797 3,430
Remarketable subordinated notes [2] 0 1,386
Carrying Amount | Virginia Electric and Power Company    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt, including securities due within one year [2] 12,326 11,671
Carrying Amount | Dominion Energy Gas Holdings, LLC    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt, including securities due within one year [3] 5,520 7,770
Credit facility borrowings 0 73
Estimate of Fair Value    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt, including securities due within one year [3],[4] 36,155 31,045
Credit facility borrowings [4] 0 73
Junior subordinated notes [2],[4] 4,953 3,358
Remarketable subordinated notes [2],[4] 0 1,340
Estimate of Fair Value | Virginia Electric and Power Company    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt, including securities due within one year 14,281 [3],[4] 12,400 [2]
Estimate of Fair Value | Dominion Energy Gas Holdings, LLC    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt, including securities due within one year [3],[4] 5,738 7,803
Credit facility borrowings [4] $ 0 $ 73
[1] Carrying amount includes current portions included in securities due within one year and amounts which represent the unamortized debt issuance costs, discount or premium, and foreign currency remeasurement adjustments. At December 31, 2019 and 2018, includes the valuation of certain fair value hedges associated with Dominion Energy’s fixed rate debt of $4 million and $(20) million, respectively.
[2] Carrying amount includes current portions included in securities due within one year and amounts which represent the unamortized debt issuance costs, discount or premium.
[3] Carrying amount includes current portions included in securities due within one year and amounts which represent the unamortized debt issuance costs, discount or premium, and foreign currency remeasurement adjustments.
[4] Fair value is estimated using market prices, where available, and interest rates currently available for issuance of debt with similar terms and remaining maturities. All fair value measurements are classified as Level 2. The carrying amount of debt issuances with short-term maturities and variable rates refinanced at current market rates is a reasonable estimate of their fair value.