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, 2019
Dec. 31, 2018
Pension Benefits    
Weighted-average assumptions used to determine benefit obligations at December 31,    
Discount rate 3.38% 4.39%
Rate of compensation increase 4.94% 4.93%
Other Benefits    
Weighted-average assumptions used to determine benefit obligations at December 31,    
Discount rate 3.26% 4.30%