Annual report pursuant to Section 13 and 15(d)

EMPLOYEE BENEFIT PLANS - Pension plan asset allocation (Details)

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EMPLOYEE BENEFIT PLANS - Pension plan asset allocation (Details) - Defined benefit pension plan [Member]
Dec. 31, 2021
Dec. 31, 2020
Defined Benefit Plan Disclosure [Line Items]    
Target Allocation (in percent) 100.00%  
Percentage of Plan Assets at Year-End (in percent) 100.00% 100.00%
Equity Securities [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Target Allocation (in percent) 68.00%  
Percentage of Plan Assets at Year-End (in percent) 73.00% 71.00%
Debt Securities [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Target Allocation (in percent) 27.00%  
Percentage of Plan Assets at Year-End (in percent) 23.00% 21.00%
Cash and Cash Equivalents [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Target Allocation (in percent) 5.00%  
Percentage of Plan Assets at Year-End (in percent) 4.00% 8.00%