PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS - Rates Used to Estimate Net Periodic Benefit Costs (Details)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
United States Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Discount rate	3.70%	4.50%	5.40%
United States Pension Plans | Salaried
Defined Benefit Plan Disclosure [Line Items]
Rate of compensation increase, current year	2.50%	2.00%	2.00%
Rate of compensation increase, thereafter	3.50%	3.50%	3.50%
United States Pension Plans | Hourly
Defined Benefit Plan Disclosure [Line Items]
Rate of compensation increase	3.00%	3.00%	3.00%
United States Other Postretirement Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Discount rate	3.00%	4.10%	5.00%
United States Other Postretirement Benefit Plans | Hourly
Defined Benefit Plan Disclosure [Line Items]
Rate of compensation increase	3.00%	3.00%	3.00%
Canadian Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Discount rate	4.10%	4.90%	5.30%
Canadian Pension Plans | Salaried
Defined Benefit Plan Disclosure [Line Items]
Rate of compensation increase, current year	2.50%	2.10%	2.00%
Rate of compensation increase, thereafter	3.50%	3.50%	3.50%
Canadian Pension Plans | Hourly
Defined Benefit Plan Disclosure [Line Items]
Rate of compensation increase	3.25%	3.25%	3.25%
Canadian Other Postretirement Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Discount rate	4.00%	4.80%	5.20%
Qualified and Registered Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Expected return on plan assets	9.00%	9.00%	9.50%
Non Registered Canadian Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Expected return on plan assets	3.50%	3.50%	4.75%
Pension
Defined Benefit Plan Disclosure [Line Items]
Election of lump sum distributions (U.S. salaried and nonqualified plans only)	56.00%	60.00%	65.00%