PENSION AND OTHER POST-EMPLOYMENT BENEFIT PLANS - Assets Within Our U.S. and Canadian Qualified and Registered Pension Plans (Details) - Qualified and Registered Plans	Dec. 31, 2021	Dec. 31, 2020
Defined Benefit Plan Disclosure [Line Items]
Assets invested in pension plan, allocation percentage	100.00%	100.00%
Cash and short-term investments
Defined Benefit Plan Disclosure [Line Items]
Assets invested in pension plan, allocation percentage	12.10%	3.60%
Fixed income investments, Corporate
Defined Benefit Plan Disclosure [Line Items]
Assets invested in pension plan, allocation percentage	40.50%	30.60%
Fixed income investments, Government
Defined Benefit Plan Disclosure [Line Items]
Assets invested in pension plan, allocation percentage	21.20%	31.80%
Fixed Income Investments, Repurchase Agreements
Defined Benefit Plan Disclosure [Line Items]
Repurchase agreements	(1.30%)	(2.80%)
Hedge funds and related investments
Defined Benefit Plan Disclosure [Line Items]
Assets invested in pension plan, allocation percentage	3.60%	6.90%
Private equity and related investments
Defined Benefit Plan Disclosure [Line Items]
Assets invested in pension plan, allocation percentage	24.90%	30.00%
Derivative instruments, net
Defined Benefit Plan Disclosure [Line Items]
Assets invested in pension plan, allocation percentage	0.10%	0.20%
Accrued liabilities
Defined Benefit Plan Disclosure [Line Items]
Repurchase agreements	(1.10%)	(0.30%)