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Pension and Other Postretirement Benefits (Tables)

3 Months Ended

Mar. 31, 2026

Retirement Benefits [Abstract]

Schedule of Pension and Other Postretirement Benefit Costs

Pension and other postretirement benefit costs for the three months ended March 31, 2026 and 2025 were as follows:

			Three Months Ended
			March 31,
			Pension												Other Postretirement Benefits
In millions			2026						2025						2026						2025
Components of net periodic benefit cost:
Service cost			$	7					$	8					$	1					$	1
Interest cost			21						23						5						6
Expected return on plan assets			(32)						(32)						(7)						(7)
Amortization of actuarial loss (gain)			4						1						(2)						(2)
Total net periodic benefit cost (income)			$	—					$	—					$	(3)					$	(2)

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- References

No definition available.

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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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