XML 77 R65.htm IDEA: XBRL DOCUMENT v3.22.0.1
EMPLOYEE BENEFIT PLANS - Weighted average assumptions used to determine the projected benefit obligation and net benefit cost (Details) - Retirement Income Plan
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
PROJECTED BENEFIT OBLIGATION:      
Discount rate   2.70% 3.70%
Rate of compensation increase
NET BENEFIT COST:      
Discount rate 2.70% 3.70% 4.65%
Expected return on plan assets 4.00% 4.00% 7.00%
Rate of compensation increase