COMMITMENTS AND CONTINGENCIES Litigation (Details) $ in Millions	1 Months Ended	3 Months Ended		6 Months Ended	12 Months Ended
	Sep. 30, 2010	Sep. 30, 2017 USD ($)	Jun. 30, 2017 USD ($)	Jun. 30, 2017 USD ($) Plaintiffs	Dec. 31, 2015 USD ($)
Litigation settlement
Loss Contingencies [Line Items]
Loss contingency, number of defendants	8
Number of claims filed				4
Payments for Legal Settlements		$ 354	$ 354	$ 354
Signature Industrial Services LLC et al. v. International Paper
Loss Contingencies [Line Items]
Disputed invoices, value			1	1
Loss Contingency, damages awarded, value			$ 125
Kalamazoo River Superfund Site | Time Critical Removal Action
Loss Contingencies [Line Items]
Loss contingency, damages sought, value				37	$ 19
Kalamazoo River Superfund Site | Georgia-Pacific Consumer Products LP, Fort James Corporation and Georgia Pacific LLC Cost Recovery Action
Loss Contingencies [Line Items]
Loss contingency, damages sought, value				$ 79
San Jacinto River Superfund Site | Medical Monitoring and Damages
Loss Contingencies [Line Items]
Number of plaintiffs seeking damages | Plaintiffs				400
BRAZIL
Loss Contingencies [Line Items]
Loss contingency, damages sought, value					$ 110