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Employee Benefit Plans - Schedule of Assumptions Used for Benefit Obligation (Details)
Dec. 31, 2019
Dec. 31, 2018
Pension Benefits    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Discount rate 2.34% 3.43%
Rate of compensation increase 3.11% 3.78%
Other Postretirement Benefits    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Discount rate 2.89% 3.92%