PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS (Details 5)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Pension Benefits [Member]
Discount rate	4.50%	5.25%	5.50%
Expected (long-term) return on plan assets	6.50%	6.75%	6.75%
Rate of future compensation increases	0.00%	0.00%	0.00%
Other Benefits [Member]
Discount rate	4.50%	5.25%	5.50%
Expected (long-term) return on plan assets	0.00%	0.00%	0.00%
Rate of future compensation increases	0.00%	0.00%	0.00%