PENSION AND POST-RETIREMENT BENEFITS - Weighted-average Assumptions Used to Determine Projected Benefit Obligation for Current Year (Details)	Dec. 31, 2019	Dec. 31, 2018
U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Discount rate (as a percent)	3.01%	4.13%
Rate of future compensation increases (as a percent)	3.50%	3.50%
International Plans
Defined Benefit Plan Disclosure [Line Items]
Discount rate (as a percent)	1.81%	2.52%
Rate of future compensation increases (as a percent)	2.02%	2.02%