Employee Benefit Plans

9 Months Ended

Sep. 30, 2018

Compensation And Retirement Disclosure [Abstract]

Employee Benefit Plans

Note 19. Employee Benefit Plans

Dominion Energy

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

	Pension Benefits						Other Postretirement Benefits
	2018			2017			2018			2017
(millions)
Three Months Ended September 30,
Service cost	$	39		$	35		$	7		$	7
Interest cost		85			86			14			15
Expected return on plan assets		(165	)		(160	)		(36	)		(32	)
Amortization of prior service cost (credit)		—			—			(13	)		(13	)
Amortization of net actuarial loss		48			40			3			3
Settlements		—			1			—			—
Net periodic benefit cost (credit)	$	7		$	2		$	(25	)	$	(20	)
Nine Months Ended September 30,
Service cost	$	118		$	104		$	20		$	20
Interest cost		253			259			42			45
Expected return on plan assets		(498	)		(480	)		(107	)		(95	)
Amortization of prior service cost (credit)		1			1			(39	)		(38	)
Amortization of net actuarial loss		145			121			8			9
Settlements		—			2			—			—
Net periodic benefit cost (credit)	$	19		$	7		$	(76	)	$	(59	)

Employer Contributions

During the nine months ended September 30, 2018, Dominion Energy made no contributions to its defined benefit pension plans or other postretirement benefit plans. Dominion Energy expects to contribute approximately $12 million to its other postretirement benefit plans through VEBAs during the remainder of 2018.

Dominion Energy Gas

Dominion Energy Gas participates in certain Dominion Energy benefit plans as described in Note 21 to the Consolidated Financial Statements in the Companies’ Annual Report on Form 10-K for the year ended December 31, 2017, as updated in Current Report on Form 8-K, filed June 6, 2018. See Note 18 for more information.

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
	2018			2017			2018			2017
(millions)
Three Months Ended September 30,
Service cost	$	4		$	3		$	1		$	1
Interest cost		7			7			3			3
Expected return on plan assets		(36	)		(34	)		(7	)		(7	)
Amortization of prior service credit		—			—			(1	)		(1	)
Amortization of net actuarial loss		4			4			—			1
Net periodic benefit credit	$	(21	)	$	(20	)	$	(4	)	$	(3	)
Nine Months Ended September 30,
Service cost	$	13		$	11		$	3		$	3
Interest cost		21			22			8			9
Expected return on plan assets		(111	)		(105	)		(21	)		(19	)
Amortization of prior service credit		—			—			(3	)		(2	)
Amortization of net actuarial loss		14			12			2			2
Net periodic benefit credit	$	(63	)	$	(60	)	$	(11	)	$	(7	)

Employer Contributions

During the nine months ended September 30, 2018, Dominion Energy Gas made no contributions to its defined benefit pension plans or other postretirement benefit plans. Dominion Energy Gas expects to contribute approximately $12 million to its other postretirement benefit plans through VEBAs, for both employees represented by collective bargaining units and employees not represented by collective bargaining units, during the remainder of 2018.