INDUSTRY SEGMENT INFORMATION Operating Profit by Industry Segment Footnotes (Details) - USD ($) $ in Millions	3 Months Ended			12 Months Ended
	Mar. 31, 2017	Dec. 31, 2016	Mar. 31, 2016	Dec. 31, 2016
Segment Reporting Information [Line Items]
Net bargain purchase gain on acquisition of business	$ (6)		$ 0
Inventory write-up	14
Restructuring and other charges	0		1
Impairment of Long-Lived Assets to be Disposed of	$ 0		37
Percent of capacity	100.00%
Netting (gain) loss on sale of Carolina Papers brand name and the Riegelwood mill conversion costs [Member]
Segment Reporting Information [Line Items]
Restructuring and other charges			9
IP Asia Packaging [Member]
Segment Reporting Information [Line Items]
Impairment of Long-Lived Assets to be Disposed of			$ 37
Holmen Paper Newsprint Mill [Member]
Segment Reporting Information [Line Items]
Net bargain purchase gain on acquisition of business	$ (6)
Weyerhaeuser Pulp Business [Member]
Segment Reporting Information [Line Items]
Inventory write-up		$ 14		$ 33
Integration costs	4
Containerboard Mills [Member] | Other Restructuring [Member]
Segment Reporting Information [Line Items]
Restructuring Costs and Asset Impairment Charges	1
Global Cellulose Fibers [Member] | Other Restructuring [Member]
Segment Reporting Information [Line Items]
Restructuring Costs and Asset Impairment Charges	$ 1