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Postretirement Plans (Tables)
 6 Months Ended
Jun. 30, 2022
Pension Plan  
Defined Benefit Plan Disclosure [Line Items]  
Net Periodic Benefit Cost The components of net periodic benefit (income)/cost were as follows:
Six months ended June 30Three months ended June 30
Pension Plans2022202120222021
Service cost$2 $2 $1 $1 
Interest cost1,041 995 521 497 
Expected return on plan assets(1,895)(1,931)(948)(965)
Amortization of prior service credits(41)(40)(21)(20)
Recognized net actuarial loss454 620 227 310 
Settlement/curtailment loss4 3 
Net periodic benefit income($439)($350)($220)($174)
Net periodic benefit cost included in (Loss)/earnings from operations$2 $2 $1 $1 
Net periodic benefit income included in Other income, net(441)(352)(221)(175)
Net periodic benefit income included in (Loss)/earnings before income taxes($439)($350)($220)($174)
Other Postretirement Benefits Plan  
Defined Benefit Plan Disclosure [Line Items]  
Net Periodic Benefit Cost
Six months ended June 30Three months ended June 30
Other Postretirement Plans2022202120222021
Service cost$36 $44 $18 $22 
Interest cost49 45 25 22 
Expected return on plan assets(5)(3)(3)(1)
Amortization of prior service credits(17)(17)(8)(8)
Recognized net actuarial gain(56)(35)(28)(18)
Net periodic benefit cost$7 $34 $4 $17 
Net periodic benefit cost included in (Loss)/earnings from operations$39 $44 $20 $22 
Net periodic benefit cost included in Other income, net(29)(10)(14)(5)
Net periodic benefit cost included in (Loss)/earnings before income taxes$10 $34 $6 $17