BUSINESS SEGMENTS Reconciliation from Segment Totals to Consolidated (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2018	Mar. 31, 2017
Segment Reporting, Revenue Reconciling Item [Line Items]
Sales to unaffiliated customers	$ 1,865	$ 1,693
Third party and intersegment revenue, net	2,093	1,895
Net contribution to earnings	392	280
Interest expense, net of capitalized interest	(93)	(99)
Earnings before income taxes	299	181
Income taxes	(30)	(24)
Net earnings	269	157
Intersegment eliminations
Segment Reporting, Revenue Reconciling Item [Line Items]
Intersegment sales	(228)	(202)
Operating segments
Segment Reporting, Revenue Reconciling Item [Line Items]
Net contribution to earnings	484	346
Unallocated items
Segment Reporting, Revenue Reconciling Item [Line Items]
Net contribution to earnings	(92)	(66)
Timberlands
Segment Reporting, Revenue Reconciling Item [Line Items]
Sales to unaffiliated customers	505	486
Intersegment sales	228	202
Net contribution to earnings	189	148
RE & ENR
Segment Reporting, Revenue Reconciling Item [Line Items]
Sales to unaffiliated customers	51	53
Net contribution to earnings	25	26
Wood Products
Segment Reporting, Revenue Reconciling Item [Line Items]
Sales to unaffiliated customers	1,309	1,154
Net contribution to earnings	$ 270	$ 172

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

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