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Employee Benefit Plans (Actuarial Assumptions Used, Net Periodic Pension Cost) (Details)
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Defined Benefit Pension Plans And Defined Benefit Postretirement Plans Disclosure [Abstract]      
Weighted average discount rate 4.13% 3.49% 4.00%
Rate of compensation increase 3.00% 3.00% 3.00%
Expected long-term rate of return 6.50% 6.50% 6.50%