BUSINESS SEGMENTS - Additional Financial Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Segment Reporting, Other Significant Reconciling Item [Line Items]
Depreciation, depletion and amortization	$ 479	$ 493	$ 458
Net pension and postretirement cost (credit)(1)	42	0	96
Charges for restructuring, closures and impairments(2)	25	44	377
Earnings (loss) from equity affiliates	(105)	(1)	1
Capital expenditures	483	391	283
Investments in and advances to equity affiliates and unconsolidated entities	74	188	190
Total assets(3)	12,486	13,265	14,372
Operating segments | Timberlands
Segment Reporting, Other Significant Reconciling Item [Line Items]
Depreciation, depletion and amortization	209	207	166
Net pension and postretirement cost (credit)(1)	9	10	10
Charges for restructuring, closures and impairments(2)	0	1	2
Earnings (loss) from equity affiliates	0	0	0
Capital expenditures	75	74	73
Investments in and advances to equity affiliates and unconsolidated entities	0	0	0
Total assets(3)	7,260	7,327	7,578
Operating segments | Wood Products
Segment Reporting, Other Significant Reconciling Item [Line Items]
Depreciation, depletion and amortization	106	119	123
Net pension and postretirement cost (credit)(1)	27	24	28
Charges for restructuring, closures and impairments(2)	10	2	13
Earnings (loss) from equity affiliates	0	0	0
Capital expenditures	287	190	113
Investments in and advances to equity affiliates and unconsolidated entities	0	0	0
Total assets(3)	1,541	1,430	1,326
Operating segments | Cellulose Fibers
Segment Reporting, Other Significant Reconciling Item [Line Items]
Depreciation, depletion and amortization	154	155	156
Net pension and postretirement cost (credit)(1)	17	11	18
Charges for restructuring, closures and impairments(2)	0	0	0
Earnings (loss) from equity affiliates	(105)	(1)	3
Capital expenditures	118	123	92
Investments in and advances to equity affiliates and unconsolidated entities	74	188	190
Total assets(3)	1,984	2,214	2,299
Unallocated Items
Segment Reporting, Other Significant Reconciling Item [Line Items]
Depreciation, depletion and amortization	10	12	13
Net pension and postretirement cost (credit)(1)	(11)	(45)	40
Charges for restructuring, closures and impairments(2)	15	41	362
Earnings (loss) from equity affiliates	0	0	(2)
Capital expenditures	3	4	5
Investments in and advances to equity affiliates and unconsolidated entities	0	0	0
Total assets(3)	$ 1,701	$ 2,294	$ 3,169