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Employee Benefit Plans - Assumptions Used for Benefit Obligation (Details) - Pension Benefits
Dec. 31, 2021
Dec. 31, 2020
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Discount rate 2.15% 1.66%
Rate of compensation increase 3.21% 3.25%
Interest crediting rate 2.60% 2.60%