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Employee Benefit Plans - Schedule of Weighted-Average Assumptions Used (Details)
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Pension Benefits    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Benefit Cost for Current Plan Year 6.75% 6.75%
Benefit Cost for Subsequent Plan Year 6.75% 6.75%
Discount Rates:    
Service Cost for Plan Year 2.69% 3.32%
Interest Cost for Plan Year 1.70% 2.69%
Benefit Obligation at End of Plan Year 2.78% 2.43%
Salary Scale Inflation 4.60% 4.60%
Cash Balance Plan Interest Credit Rate 3.75% 3.75%
Post-retirement Benefits    
Discount Rates:    
Service Cost for Plan Year 1.81% 2.93%
Interest Cost for Plan Year 1.27% 2.43%
Benefit Obligation at End of Plan Year 2.51% 2.07%