BUSINESS SEGMENTS Reconciliation of Business Segment Information (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Segment Reporting, Revenue Reconciling Item
Sales to unaffiliated customers	$ 1,692	$ 2,065	$ 3,335	$ 3,930
Net contribution to earnings (loss)	182	474	(104)	866
Interest expense, net of capitalized interest	(91)	(92)	(198)	(185)
Earnings (loss) before income taxes	91	382	(302)	681
Income taxes	37	(65)	141	(95)
Net earnings (loss)	128	317	(161)	586
Intersegment eliminations
Segment Reporting, Revenue Reconciling Item
Sales to unaffiliated customers	(131)	(139)	(256)	(281)
Operating segments
Segment Reporting, Revenue Reconciling Item
Sales to unaffiliated customers	1,823	2,204	3,591	4,211
Net contribution to earnings (loss)	218	512	462	996
Unallocated items
Segment Reporting, Revenue Reconciling Item
Net contribution to earnings (loss)	(36)	(38)	(566)	(130)
Timberlands
Segment Reporting, Revenue Reconciling Item
Sales to unaffiliated customers	401	476	832	966
Net contribution to earnings (loss)	102	161	222	350
Timberlands \| Intersegment eliminations
Segment Reporting, Revenue Reconciling Item
Sales to unaffiliated customers	131	139	256	281
Real Estate & ENR
Segment Reporting, Revenue Reconciling Item
Sales to unaffiliated customers	81	58	199	109
Net contribution to earnings (loss)	35	22	90	47
Wood Products
Segment Reporting, Revenue Reconciling Item
Sales to unaffiliated customers	1,210	1,531	2,304	2,855
Net contribution to earnings (loss)	$ 81	$ 329	$ 150	$ 599

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

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