Employee Benefit Plans (Tables)

6 Months Ended

Jun. 30, 2021

Compensation And Retirement Disclosure [Abstract]

Net Periodic Benefit Cost (Credit)

The service cost component of net periodic benefit (credit) cost is reflected in other operations and maintenance expense in Dominion Energy’s Consolidated Statements of Income, except for $4 million and $9 million for the three and six months ended June 30, 2020, respectively, presented in discontinued operations. The non-service cost components of net periodic benefit (credit) cost are reflected in other income in Dominion Energy’s Consolidated Statements of Income. The components of Dominion Energy’s provision for net periodic benefit cost (credit) are as follows:

	Pension Benefits						Other Postretirement Benefits
	2021			2020			2021			2020
(millions)
Three Months Ended June 30,
Service cost	$	42		$	43		$	6		$	7
Interest cost		79			90			12			15
Expected return on plan assets		(208	)		(192	)		(43	)		(39	)
Amortization of prior service cost (credit)		—			1			(11	)		(13	)
Amortization of net actuarial loss		49			48			1			2
Settlements (1)		7			2			—			—
Net periodic benefit credit	$	(31	)	$	(8	)	$	(35	)	$	(28	)
Six Months Ended June 30,
Service cost	$	84		$	86		$	12		$	14
Interest cost		158			181			24			30
Expected return on plan assets		(416	)		(385	)		(87	)		(78	)
Amortization of prior service cost (credit)		—			1			(21	)		(25	)
Amortization of net actuarial loss		97			97			2			3
Settlements (1)		5			2			—			—
Net periodic benefit credit	$	(72	)	$	(18	)	$	(70	)	$	(56	)