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EMPLOYEE BENEFIT PLANS
 6 Months Ended
Jun. 30, 2022
Retirement Benefits [Abstract]  
EMPLOYEE BENEFIT PLANS EMPLOYEE BENEFIT PLANS Components of net pension expense for defined benefit pension plans were as follows:
Three months ended June 30,Six months ended June 30,
 (In thousands)2022202120222021
Company-administered plans:
Service cost$198 $180 $438 $548 
Interest cost15,785 14,483 31,609 29,018 
Expected return on plan assets(18,484)(21,791)(37,066)(43,485)
Amortization of net actuarial loss and prior service cost5,299 7,031 10,771 14,128 
Net pension expense$2,798 $(97)$5,752 $209 
Company-administered plans:
U.S.$3,324 $2,090 $6,647 $4,453 
Non-U.S.(526)(2,187)(895)(4,244)
Net pension expense$2,798 $(97)$5,752 $209 
Non-operating pension costs, net include the amortization of net actuarial loss and prior service cost, interest cost and expected return on plan assets components of pension and postretirement benefit costs, as well as any significant charges for settlements or curtailments if recognized. During the six months ended June 30, 2022, we contributed $19 million to our pension plans. We do not expect additional contributions to our pension plans for the year 2022. We also maintain other postretirement benefit plans that are not reflected in the table above as the amount of postretirement benefit expense for such plans was not material for any period presented.