v3.22.4
CAPITAL STOCK AND STOCK AWARD PLANS - Assumptions Used in Estimating the Fair Value Per Option (Details) - Stock options - $ / shares
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Fair Value Assumptions and Methodology    
Weighted-average risk-free interest rate (percent) 1.60% 2.10%
Expected dividend yield (percent) 2.50% 2.00%
Weighted-average volatility (percent) 23.00% 25.00%
Expected term (in years) 8 years 10 months 28 days 6 years 29 days
Weighted average fair value per option (in dollars per share) $ 13.88 $ 17.52