Annual report pursuant to Section 13 and 15(d)

BENEFIT PLANS - Weighted-Average Assumptions used to Determine Benefit Obligations (Details)

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BENEFIT PLANS - Weighted-Average Assumptions used to Determine Benefit Obligations (Details)
Dec. 31, 2020
Dec. 31, 2019
Pension Benefits    
Weighted-average assumptions used to determine benefit obligations at December 31,    
Discount rate 2.56% 3.38%
Rate of compensation increase 5.97% 4.94%
Other Benefits    
Weighted-average assumptions used to determine benefit obligations at December 31,    
Discount rate 2.47% 3.26%