XML 124 R106.htm IDEA: XBRL DOCUMENT v3.20.4
Postretirement Benefit Plans (Discount Rates) (Details)
3 Months Ended 12 Months Ended
Mar. 31, 2020
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Net Periodic Benefit Cost Assumptions          
Discount rate       2.00% 3.00%
Expected long-term rate of return on plan assets 1.00% 3.46% 7.09% 7.34%  
United States          
Benefit Obligation Assumptions          
Discount rate   2.50% 3.25% 4.50%  
Net Periodic Benefit Cost Assumptions          
Discount rate   3.25% 4.50% 3.75%  
Expected long-term rate of return on plan assets   6.50% 7.75% 8.00%  
International          
Benefit Obligation Assumptions          
Discount rate   1.06% 1.80% 2.60%  
Rate of future compensation increase   2.79% 2.94% 2.92%  
Net Periodic Benefit Cost Assumptions          
Discount rate   1.80% 2.60% 2.43%  
Expected long-term rate of return on plan assets   2.82% 6.96% 7.23%  
Rate of future compensation increase   2.94% 2.92% 2.93%