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Pension and Other Postretirement Healthcare Benefits (Tables)
3 Months Ended
Mar. 31, 2021
Retirement Benefits [Abstract]  
Net Periodic Cost Associated with the U.S. and Foreign Pension Plans
The components of net periodic cost associated with our U.S. and foreign pension plans recognized in the unaudited Condensed Consolidated Statements of Income were as follows:
Pensions
Three Months Ended March 31,
20212020
Net periodic cost:
Service cost$$
Interest cost
Expected return on plan assets(6)(6)
Net amortization of actuarial loss and prior service credit
Total net periodic cost$(1)$