BUSINESS SEGMENTS - Sales and Net Contribution (Charge) to Earnings (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Segment Reporting, Revenue Reconciling Item
Sales to unaffiliated customers	$ 7,674	$ 10,184	$ 10,201
Net contribution (charge) to earnings	1,217	2,851	3,629
Timberlands
Segment Reporting, Revenue Reconciling Item
Sales to unaffiliated customers	1,654	1,858	1,636
Real Estate & ENR
Segment Reporting, Revenue Reconciling Item
Sales to unaffiliated customers	363	368	344
Wood Products
Segment Reporting, Revenue Reconciling Item
Sales to unaffiliated customers	5,657	7,958	8,221
Operating segments | Timberlands
Segment Reporting, Revenue Reconciling Item
Sales to unaffiliated customers	1,654	1,858	1,636
Net contribution (charge) to earnings	488	528	464
Operating segments | Real Estate & ENR
Segment Reporting, Revenue Reconciling Item
Sales to unaffiliated customers	363	368	344
Net contribution (charge) to earnings	211	218	210
Operating segments | Wood Products
Segment Reporting, Revenue Reconciling Item
Sales to unaffiliated customers	5,657	7,958	8,221
Net contribution (charge) to earnings	709	2,536	3,211
Unallocated Items
Segment Reporting, Revenue Reconciling Item
Sales to unaffiliated customers	0	0	0
Net contribution (charge) to earnings	(191)	(431)	(256)
Intersegment eliminations
Segment Reporting, Revenue Reconciling Item
Sales to unaffiliated customers	(572)	(561)	(535)
Intersegment eliminations | Timberlands
Segment Reporting, Revenue Reconciling Item
Sales to unaffiliated customers	572	561	535
Intersegment eliminations | Real Estate & ENR
Segment Reporting, Revenue Reconciling Item
Sales to unaffiliated customers	0	0	0
Intersegment eliminations | Wood Products
Segment Reporting, Revenue Reconciling Item
Sales to unaffiliated customers	$ 0	$ 0	$ 0