Employee Benefit Plans (Tables)

3 Months Ended

Mar. 31, 2019

Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]

Net Periodic Benefit Cost (Credit)

The components of Dominion Energy’s provision for net periodic benefit cost (credit) were as follows:

	Pension Benefits						Other Postretirement Benefits
	2019			2018			2019			2018
(millions)
Three Months Ended March 31,
Service cost	$	40		$	39		$	7		$	7
Interest cost		101			84			17			14
Expected return on plan assets		(177	)		(165	)		(33	)		(36	)
Amortization of prior service credit		—			—			(13	)		(13	)
Amortization of net actuarial loss		39			48			4			3
Settlements		2			—			—			—
Net periodic benefit cost (credit)	$	5		$	6		$	(18	)	$	(25	)

Dominion Energy Gas Holdings, LLC

Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]

Net Periodic Benefit Cost (Credit)

The components of Dominion Energy Gas’ provision for net periodic benefit cost (credit) for employees represented by collective bargaining units were as follows:

	Pension Benefits						Other Postretirement Benefits
	2019			2018			2019			2018
(millions)
Three Months Ended March 31,
Service cost	$	4		$	4		$	1		$	1
Interest cost		8			7			3			3
Expected return on plan assets		(39	)		(37	)		(7	)		(8	)
Amortization of prior service credit		—			—			(1	)		(1	)
Amortization of net actuarial loss		5			5			1			1
Net periodic benefit credit	$	(22	)	$	(21	)	$	(3	)	$	(4	)