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PENSION AND OTHER POSTRETIREMENT BENEFITS (Tables)
 3 Months Ended
Mar. 31, 2025
Retirement Benefits [Abstract]  
Schedule Benefit Plans Disclosures Cash Contributions Contributions to these plans were as follows:
Three months ended
 March 31,
In millions20252024
Defined benefit pension contributions$12 $39 
OPEB payments, net1 9 
Defined contribution pension plans49 48 
Components of net periodic pension and other postretirement benefit cost
The components of net periodic pension and OPEB expense (income) under our plans were as follows:
 Pension  
 U.S. PlansU.K. PlansOPEB
 Three months ended March 31,
In millions202520242025202420252024
Service cost$33 $35 $4 $4 $— $— 
Interest cost43 42 18 18 1 2 
Expected return on plan assets(67)(72)(22)(25)— — 
Amortization of prior service cost1 — — — — — 
Recognized net actuarial loss (gain)2 3 7 3 (1)(1)
Net periodic benefit expense$12 $8 $7 $— $— $1