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Pension Benefits (Tables)

9 Months Ended

Sep. 30, 2025

Pension

Schedule of Components of Net Periodic Benefit Cost

The net periodic benefit cost for pension benefits includes the following components:

		Three Months Ended September 30,								Nine Months Ended September 30,
		2025				2024				2025				2024
		(Dollars in Millions)
Service cost		$	9			$	10			$	27			$	29
Interest cost			15				14				44				41
Expected return on assets			(21	)			(20	)			(62	)			(59	)
Amortization of:
Prior service cost			1				2				4				5
Actuarial loss			—				—				1				1
Settlement charge			5				—				5				—
Net periodic benefit cost		$	9			$	6			$	19			$	17

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- 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

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