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Pension Weighted Average Assumptions (Details)
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]      
Discount Rate 3.36% 4.37%  
Rate of Compensation Increase 0.00% 3.63%  
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract]      
Discount Rate 4.37% 4.28% 4.26%
Rate of Compensation Increase 3.63% 4.05% 3.90%