Annual report pursuant to Section 13 and 15(d)

PENSIONS AND OTHER POSTRETIREMENT BENEFITS - Weighted-Average Assumptions Used to Determine Benefit Obligations (Details)

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PENSIONS AND OTHER POSTRETIREMENT BENEFITS - Weighted-Average Assumptions Used to Determine Benefit Obligations (Details)
Dec. 31, 2021
Dec. 31, 2020
Pension Plan    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Discount rate 2.75% 2.34%
Interest crediting rate 5.35% 5.25%
Rate of compensation increase 2.52% 2.56%
Other Postretirement Benefits Plan    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Discount rate 3.01% 2.71%
Rate of compensation increase 3.00% 3.00%