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EMPLOYEE BENEFIT PLANS - Weighted-Average Assumptions, Pension Plans (Details) - Pension Plans
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
United States      
Summary of weighted-average actuarial assumptions used in determining annual pension expense      
Discount rate (as a percent) 2.60% 3.18% 4.35%
Rate of increase in compensation levels (as a percent) 3.00% 3.00% 3.00%
Expected long-term rate of return on plan assets (as a percent) 3.90% 5.05% 5.40%
Gain and loss amortization period (years) 21 years 21 years 22 years
Foreign Plans      
Summary of weighted-average actuarial assumptions used in determining annual pension expense      
Discount rate (as a percent) 1.53% 2.28% 3.04%
Rate of increase in compensation levels (as a percent) 3.11% 3.11% 3.08%
Expected long-term rate of return on plan assets (as a percent) 3.89% 4.99% 5.36%
Gain and loss amortization period (years) 24 years 24 years 24 years