Annual report pursuant to Section 13 and 15(d)

Benefit Plans - Weighted Average Assumptions for Pension Obligation (Details)

v3.10.0.1
Benefit Plans - Weighted Average Assumptions for Pension Obligation (Details)
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Defined Benefit Pension Plans | U.S.    
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation    
Discount rate 4.32% 3.74%
Rate of compensation increase 3.00% 3.00%
Defined Benefit Pension Plans | Foreign    
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation    
Discount rate 3.01% 2.91%
Rate of compensation increase 2.44% 2.57%
Supplemental Retirement Plans    
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation    
Discount rate 4.20% 3.60%
Rate of compensation increase 0.00% 0.00%
Other Postretirement Benefits Plans    
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation    
Discount rate 3.53% 3.74%
Immediate trend rate 6.59% 6.84%
Ultimate trend rate 4.50% 4.50%
Year that the rate reaches ultimate trend rate 2035 2035