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Postretirement Benefits
 9 Months Ended
Sep. 30, 2022
Retirement Benefits [Abstract]  
Postretirement Benefits Postretirement benefits
 
A.  Pension and postretirement benefit costs    
U.S. Pension
Benefits
Non-U.S. Pension
Benefits
Other
Postretirement
Benefits
September 30September 30September 30
(Millions of dollars)202220212022202120222021
For the three months ended:      
Components of net periodic benefit cost:      
Service cost$— $— $15 $15 $24 $25 
Interest cost100 82 17 16 20 16 
Expected return on plan assets (167)(180)(33)(33)(3)(1)
Amortization of prior service cost (credit)— — — — (1)(11)
Net periodic benefit cost (benefit) 1
$(67)$(98)$(1)$(2)$40 $29 
For the nine months ended:
Components of net periodic benefit cost:
Service cost$— $— $40 $44 $74 $75 
Interest cost301 247 53 43 60 48 
Expected return on plan assets (502)(538)(100)(98)(9)(4)
Amortization of prior service cost (credit)— — — — (4)(31)
Net periodic benefit cost (benefit) 1
$(201)$(291)$(7)$(11)$121 $88 
1    The service cost component is included in Operating costs in the Consolidated Statement of Results of Operations. All other components are included in Other income (expense) in the Consolidated Statement of Results of Operations.

We made $44 million and $299 million of contributions to our pension and other postretirement plans during the three and nine months ended September 30, 2022. We currently anticipate full-year 2022 contributions of approximately $357 million.
 
B.  Defined contribution benefit costs
 
Total company costs related to our defined contribution plans, which are included in Operating Costs in the Consolidated Statement of Results of Operations, were as follows:
 
 Three Months Ended September 30Nine Months Ended September 30
(Millions of dollars)2022202120222021
U.S. Plans$87 $81 $236 $321 
Non-U.S. Plans29 29 85 83 
 $116 $110 $321 $404 

The decrease in the U.S. defined contribution benefit costs for the nine months ended September 30, 2022 was primarily due to the fair value adjustments related to our non-qualified deferred compensation plans.