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PENSION AND OTHER POSTRETIREMENT BENEFITS
 9 Months Ended
Sep. 30, 2024
Retirement Benefits [Abstract]  
PENSION AND OTHER POSTRETIREMENT BENEFITS
NOTE 3. PENSIONS AND OTHER POSTRETIREMENT BENEFITS
We sponsor funded and unfunded domestic and foreign defined benefit pension and other postretirement benefit (OPEB) plans. Contributions to these plans were as follows:
Three months endedNine months ended
 September 30,September 30,
In millions2024202320242023
Defined benefit pension contributions$9 $8 $56 $102 
OPEB payments, net4 4 16 13 
Defined contribution pension plans27 29 101 102 
We anticipate making additional defined benefit pension contributions during the remainder of 2024 of $14 million for our U.S. and U.K. qualified and non-qualified pension plans. These contributions may be made from trusts or company funds either to increase pension assets or to make direct benefit payments to plan participants. We expect our 2024 annual net periodic pension cost to approximate $34 million.
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 September 30,
In millions202420232024202320242023
Service cost$35 $29 $4 $4 $— $— 
Interest cost42 42 18 18 2 2 
Expected return on plan assets(72)(69)(26)(27)— — 
Amortization of prior service cost— — 1 1 — — 
Recognized net actuarial loss (gain)3 2 3 — (1)(1)
Net periodic benefit expense (income)$8 $4 $— $(4)$1 $1 
 Pension
 U.S. PlansU.K. PlansOPEB
 Nine months ended September 30,
In millions202420232024202320242023
Service cost$106 $87 $13 $12 $— $— 
Interest cost125 126 53 53 5 6 
Expected return on plan assets(217)(207)(76)(79)— — 
Amortization of prior service cost1 1 1 1 — — 
Recognized net actuarial loss (gain)10 6 9 — (2)(2)
Net periodic benefit expense (income)$25 $13 $— $(13)$3 $4