COMMITMENTS AND CONTINGENCIES (Litigation) (Details) $ in Millions	1 Months Ended	3 Months Ended	6 Months Ended
	Sep. 30, 2010	Jun. 30, 2015	Jun. 30, 2015 USD ($)
Harris County San Jacinto River Superfund Site [Member]
Loss Contingencies [Line Items]
Number of claims filed			2
Kleen Products Llc Versus Packaging Corp of America [Member]
Loss Contingencies [Line Items]
Loss contingency, number of defendants	8
Number of claims filed			4
Kalamazoo River Superfund Site [Member] | Time Critical Removal Action [Member]
Loss Contingencies [Line Items]
Loss contingency, damages sought, value			$ 19
Kalamazoo River Superfund Site [Member] | Georgia-Pacific Consumer Products LP, Fort James Corporation and Georgia Pacific LLC Cost Recovery Action [Member]
Loss Contingencies [Line Items]
Loss contingency, damages sought, value			$ 79
Medical claims [Member] | Harris County San Jacinto River Superfund Site [Member]
Loss Contingencies [Line Items]
Number of plaintiffs seeking damages		400
Property damage and personal injury [Member] | Harris County San Jacinto River Superfund Site [Member]
Loss Contingencies [Line Items]
Number of plaintiffs seeking damages		150