XML 49 R36.htm IDEA: XBRL DOCUMENT v3.25.3

Pension And Other Postretirement Benefits (Tables)

9 Months Ended

Sep. 30, 2025

Pension and Other Postretirement Benefits Cost (Reversal of Cost) [Abstract]

Components Of The Plans' Net Periodic Benefits Cost

The following table provides the components of the plans' actuarially determined net periodic benefit cost for the three and nine months ended September 30, 2025 and 2024:

			Pension Benefits												OPEB
Three Months Ended September 30, (in millions)			2025						2024						2025						2024
Components of Net Periodic Benefit Cost(1)
Service cost			$	4.9					$	5.5					$	1.0					$	1.3
Interest cost			16.0						16.3						5.6						5.5
Expected return on assets			(23.1)						(23.8)						(4.2)						(4.0)
Amortization of prior service credit			—						—						(0.4)						(0.4)
Recognized actuarial loss			6.4						7.2						0.4						0.8
Settlement loss			5.6						5.9						—						—
Total Net Periodic Benefit Cost			$	9.8					$	11.1					$	2.4					$	3.2
(1)The service cost component and all non-service cost components of net periodic benefit (income) cost are presented in "Operation and maintenance" and "Other, net," respectively, on the Condensed Statements of Consolidated Income (unaudited).

X

- References

No definition available.

+ Details

Name:	us-gaap_PensionAndOtherPostretirementBenefitExpenseAbstract
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