Annual report pursuant to Section 13 and 15(d)

PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS - Certain weighted average assumptions used in computing the benefit obligations and net periodic benefit cost (Details)

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PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS - Certain weighted average assumptions used in computing the benefit obligations and net periodic benefit cost (Details)
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Pension benefits      
Weighted average assumptions used in computing the benefit obligations      
Discount rate (as a percent) 5.50% 3.00%  
Interest Crediting Rate 4.00% 3.00%  
Rate of increase in compensation levels (as a percent) 3.75% 3.75%  
Weighted-average assumptions used in computing net periodic benefit cost      
Discount rate (as a percent) 3.00% 2.50% 3.25%
Interest Crediting Rate 3.00% 3.00% 3.50%
Rate of increase in compensation levels (as a percent) 3.75% 3.75% 3.75%
Expected Long-term Rate of Return on Plan Assets 7.00% 7.25% 7.50%
Other benefits      
Weighted average assumptions used in computing the benefit obligations      
Discount rate (as a percent) 6.00% 3.25%  
Weighted-average assumptions used in computing net periodic benefit cost      
Discount rate (as a percent) 3.25% 2.75% 3.50%
Expected Long-term Rate of Return on Plan Assets 4.00% 4.25% 4.50%