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STOCK-BASED COMPENSATION PLANS - Schedule of Share Based Compensation Arrangement By Share Based Payment Award Grants in Period Fair Value Assumptions (Details) - LTI Plan - NEOs
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Dividend yield 3.03% 2.86% 2.80%
Expected volatility rate 23.11% 23.80% 27.53%
Risk-free interest rate 1.47% 2.52% 2.67%
Expected option life 6 years 6 years 6 years 6 months