PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS - Discount Rates and Rates of Compensation Increase (Details)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
United States Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Discount rates	3.70%	4.50%
United States Other Postretirement Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Discount rates	3.00%	4.10%
Canadian Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Discount rates	4.10%	4.90%
Canadian Other Postretirement Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Discount rates	4.00%	4.80%
Pension
Defined Benefit Plan Disclosure [Line Items]
Election of lump sum or installment distributions (US salaried and nonqualified plans only)	56.00%	60.00%
Hourly | United States Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Rate of compensation increase	3.00%	3.00%
Hourly | United States Other Postretirement Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Rate of compensation increase	3.00%	3.00%
Hourly | Canadian Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Rate of compensation increase	3.25%	3.25%
Fiscal Year 2011 | Salaried | United States Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Rate of compensation increase		2.00%
Fiscal Year 2011 | Salaried | Canadian Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Rate of compensation increase		2.00%
Fiscal Year 2011 | Salaried | Canadian Other Postretirement Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Rate of compensation increase		2.00%
Fiscal Year 2012 | Salaried | United States Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Rate of compensation increase	2.00%	2.00%
Fiscal Year 2012 | Salaried | Canadian Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Rate of compensation increase	2.10%	2.10%
Fiscal Year 2012 | Salaried | Canadian Other Postretirement Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Rate of compensation increase		2.10%
Fiscal Year 2013 | Salaried | United States Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Rate of compensation increase	2.50%
Fiscal Year 2013 | Salaried | Canadian Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Rate of compensation increase	2.50%
Thereafter | Salaried | United States Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Rate of compensation increase	3.50%	3.50%
Thereafter | Salaried | Canadian Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Rate of compensation increase	3.50%	3.50%
Thereafter | Salaried | Canadian Other Postretirement Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Rate of compensation increase		3.50%