PENSION AND OTHER POST-EMPLOYMENT BENEFIT PLANS - Net Periodic Benefit Cost and Assumptions used to Estimate our Net Periodic Benefit Costs (Parenthetical) (Details)	1 Months Ended	11 Months Ended	12 Months Ended
	Jan. 31, 2019	Dec. 31, 2019	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate	4.40%	4.30%
Qualified and Registered Plans
Defined Benefit Plan Disclosure [Line Items]
Expected return on plan assets			5.00%
U.S.
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate	4.40%				4.30%
Pension
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate			2.50%
Expected return on plan assets			6.00%	6.50%	7.00%
Pension | Minimum
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate				3.10%	3.70%
Rate of compensation increase			2.00%	2.00%	2.00%
Pension | Maximum
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate				3.40%	4.40%
Rate of compensation increase			13.00%	13.00%	13.00%
Pension | U.S.
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate			2.50%	3.40%	4.30%
Pension | U.S. | Salaried | Minimum
Defined Benefit Plan Disclosure [Line Items]
Rate of compensation increase			2.00%	2.00%	2.00%
Pension | U.S. | Salaried | Maximum
Defined Benefit Plan Disclosure [Line Items]
Rate of compensation increase			13.00%	13.00%	13.00%
Pension | U.S. | Hourly | Minimum
Defined Benefit Plan Disclosure [Line Items]
Rate of compensation increase			2.00%	2.00%	2.00%
Pension | U.S. | Hourly | Maximum
Defined Benefit Plan Disclosure [Line Items]
Rate of compensation increase			13.00%	13.00%	13.00%
Pension | Canada
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate			2.50%	3.10%	3.70%
Pension | Canada | Salaried
Defined Benefit Plan Disclosure [Line Items]
Rate of compensation increase			3.25%	3.25%	3.25%
Pension | Canada | Hourly
Defined Benefit Plan Disclosure [Line Items]
Rate of compensation increase			3.00%	3.00%	3.00%
Other Post-employment Benefits
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate				3.00%
Other Post-employment Benefits | Minimum
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate			2.10%		3.70%
Weighted health care cost trend rate assumed		4.50%	4.50%	4.50%	4.50%
Other Post-employment Benefits | Maximum
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate			2.40%		4.20%
Rate of compensation increase			13.00%
Weighted health care cost trend rate assumed		7.80%	6.80%	7.30%	7.80%
Other Post-employment Benefits | U.S.
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate			2.10%	3.00%	4.20%
Other Post-employment Benefits | U.S. | Pre-Medicare
Defined Benefit Plan Disclosure [Line Items]
Weighted health care cost trend rate assumed			6.80%
Other Post-employment Benefits | U.S. | Health Reimbursement Account
Defined Benefit Plan Disclosure [Line Items]
Weighted health care cost trend rate assumed			4.50%
Other Post-employment Benefits | Canada
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate			2.40%	3.00%	3.70%
Weighted health care cost trend rate assumed			5.30%