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Pensions and Other Benefits (Tables)
3 Months Ended
Mar. 31, 2022
Retirement Benefits [Abstract]  
Net Periodic Benefit Cost
The following table reflects the components of net periodic benefit (income) cost for the three months ended March 31, 2022 and 2021:
Pension BenefitsOther Benefits
(In millions)2022202120222021
Service cost$11 $14 $2 $
Interest cost39 40 12 12 
Expected return on plan assets(89)(89)(22)(20)
Amortization of prior service credit — (7)(7)
Amortization of actuarial net loss (gain)18 38 (13)(6)
Net periodic benefit cost (income), excluding below(21)(28)(18)
Multiemployer plans19 19  — 
Settlement, termination and curtailment losses (a)
1 —   
Net periodic benefit cost (income)$(1)$22 $(28)$(18)
(a) During the three months ended March 31, 2022, pension benefits incurred special termination charges of approximately $1 million due to workforce restructuring.