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Pension Benefits - Assumptions (Details)
Dec. 31, 2021
Dec. 31, 2020
Minimum    
Defined Benefit Plan Disclosure [Line Items]    
Discount rate 2.10% 3.57%
Rate of increase in compensation level 7.00% 5.00%
Maximum    
Defined Benefit Plan Disclosure [Line Items]    
Discount rate 12.03% 8.06%
Rate of increase in compensation level 10.00% 7.00%