Employee Benefit Plans (Actuarial Assumptions) (Details) |
12 Months Ended | ||
---|---|---|---|
Dec. 31, 2019 |
Dec. 31, 2018 |
Dec. 31, 2017 |
|
Retirement Benefits [Abstract] | |||
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate | 3.33% | 4.37% | |
Defined Benefit Plan, Assumptions Used Calculating Net Period Benefit Cost, Benefit Obligation, Discount Rate | 4.37% | 3.69% | 4.28% |
Effective rate for interest on benefit obligation (percent) | 4.01% | 3.28% | 3.49% |
Expected return on plan assets (percent) | 7.50% | 7.50% | 8.00% |
Cumulative Gains and Losses Amortization Period Limit | 12 years |