CHARGES FOR INTEGRATION AND RESTRUCTURING, CLOSURES AND ASSET IMPAIRMENTS - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Sep. 30, 2017	Jun. 30, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Asset Impairment Charges			$ 1	$ 154	$ 37
Proceeds, net of cash and cash equivalents disposed of			$ 0	$ 403	2,486
Timberlands
Asset Impairment Charges		$ 147
RE & ENR
Asset Impairment Charges					$ 15
Wood Products
Asset Impairment Charges	$ 6
Uruguayan Operations
Proceeds, net of cash and cash equivalents disposed of	$ 403