BUSINESS SEGMENTS Reconciliation of Business Segment Information (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2019	Mar. 31, 2018
Segment Reporting, Revenue Reconciling Item
Sales to unaffiliated customers	$ 1,643	$ 1,865
Third party and intersegment revenue, net	1,768	2,007
Net contribution to earnings (loss)	(286)	392
Interest expense, net of capitalized interest	(107)	(93)
Earnings (loss) before income taxes	(393)	299
Income taxes	104	(30)
Net earnings (loss)	(289)	269
Intersegment eliminations
Segment Reporting, Revenue Reconciling Item
Intersegment Sales	(125)	(142)
Operating segments
Segment Reporting, Revenue Reconciling Item
Net contribution to earnings (loss)	244	484
Unallocated items
Segment Reporting, Revenue Reconciling Item
Net contribution to earnings (loss)	(530)	(92)
Timberlands
Segment Reporting, Revenue Reconciling Item
Sales to unaffiliated customers	431	490
Intersegment Sales	125	142
Net contribution to earnings (loss)	120	189
Real Estate & ENR
Segment Reporting, Revenue Reconciling Item
Sales to unaffiliated customers	118	51
Net contribution to earnings (loss)	55	25
Wood Products
Segment Reporting, Revenue Reconciling Item
Sales to unaffiliated customers	1,094	1,324
Net contribution to earnings (loss)	$ 69	$ 270

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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