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Employee Benefit Plans (Schedule of Assumptions Used) (Details)
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Defined benefit pension plan      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Discount rate 2.50% 2.72% 3.65%
Expected return on plan assets 4.30% 4.65% 5.10%
Other postretirement benefits plan      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Discount rate 2.17% 3.09% 4.12%