COMMITMENTS AND CONTINGENCIES (Litigation) (Details) (USD $) In Millions, unless otherwise specified	1 Months Ended	3 Months Ended
	Sep. 30, 2010	Mar. 31, 2014
Commitments and Contingencies [Line Items]
Income tax examination, estimate of possible loss		$ 27
Kleen Products Llc Versus Packaging Corp of America [Member]
Commitments and Contingencies [Line Items]
Loss contingency, number of defendants	8
Number of claims filed		4