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Employee Benefits (Schedule of weighted-average assumptions used to determine the pension benefit obligation) (Details)
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Employee Benefits and Share-based Compensation, Noncash [Abstract]    
Discount rate 3.25% 4.14%
Rate of compensation increase
Discount rate 4.20% 3.53%
Expected long-term return on plan assets 5.50% 6.00%
Rate of compensation increase