XML 61 R51.htm IDEA: XBRL DOCUMENT v3.25.3

Employee Benefit Plans (Tables)

9 Months Ended

Sep. 30, 2025

Retirement Benefits [Abstract]

Components of Provision for Net Periodic Benefit (Credit) Cost

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

		Pension Benefits																Other Postretirement Benefits
		Quarter-to-Date								Year-to-Date								Quarter-to-Date								Year-to-Date
Period Ended September 30,		2025				2024				2025				2024				2025				2024				2025				2024
(millions)
Service cost		$	19			$	19			$	57			$	63			$	3			$	2			$	8			$	8
Interest cost			108				107				325				324				13				15				42				43
Expected return on plan assets			(170	)			(200	)			(508	)			(611	)			(39	)			(43	)			(119	)			(128	)
Amortization of prior service (credit) cost			1				1				1				1				(6	)			(9	)			(19	)			(27	)
Net actuarial (gain) loss			—				(23	)			—				(171	)			—				11				—				(58	)
Curtailments(1)			—				—				—				(56	)			—				—				—				(4	)
Plan amendment			—				—				—				22				—				—				—				—
Net periodic benefit (credit) cost		$	(42	)		$	(96	)		$	(125	)		$	(428	)		$	(29	)		$	(24	)		$	(88	)		$	(166	)

(1)2024 amounts relate primarily to the East Ohio Transaction.

X

- References

No definition available.

+ Details

Name:	us-gaap_CompensationAndRetirementDisclosureAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Subparagraph (q)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480506/715-20-50-5

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 715
-SubTopic 20
-Subparagraph (h)
-Name Accounting Standards Codification
-Paragraph 1
-Section 50
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480506/715-20-50-1

+ Details

Name:	us-gaap_ScheduleOfNetBenefitCostsTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration