XML 95 R105.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Employee Benefit Plans - Actuarial Assumptions (Details)
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Assumptions used to determine benefit obligation at year end:      
Discount rate (percent) 3.20% 4.20% 3.70%
Assumptions used to determine net periodic benefit cost:      
Discount rate (percent) 4.20% 3.70% 4.00%
Expected long-term weighted-average rate of return on plan assets (percent) 7.00% 7.00% 7.00%