BUSINESS SEGMENTS - Reconciliation of Business Segment Information in Consolidated Statement of Operations (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Segment Reporting, Revenue Reconciling Item
Sales to unaffiliated customers	$ 3,112	$ 2,506
Net contribution (charge) to earnings	1,328	949
Interest expense, net of capitalized interest	(72)	(79)
Loss on debt extinguishment	(276)	0
Earnings before income taxes	980	870
Income taxes	(209)	(189)
Net earnings	771	681
Operating Segments
Segment Reporting, Revenue Reconciling Item
Sales to unaffiliated customers	3,273	2,640
Net contribution (charge) to earnings	1,445	1,014
Intersegment eliminations
Segment Reporting, Revenue Reconciling Item
Sales to unaffiliated customers	(161)	(134)
Unallocated items
Segment Reporting, Revenue Reconciling Item
Net contribution (charge) to earnings	(117)	(65)
Timberlands
Segment Reporting, Revenue Reconciling Item
Sales to unaffiliated customers	465	379
Timberlands | Operating Segments
Segment Reporting, Revenue Reconciling Item
Sales to unaffiliated customers	465	379
Net contribution (charge) to earnings	182	108
Timberlands | Intersegment eliminations
Segment Reporting, Revenue Reconciling Item
Sales to unaffiliated customers	161	134
Real Estate & ENR
Segment Reporting, Revenue Reconciling Item
Sales to unaffiliated customers	128	106
Real Estate & ENR | Operating Segments
Segment Reporting, Revenue Reconciling Item
Sales to unaffiliated customers	128	106
Net contribution (charge) to earnings	81	66
Wood Products
Segment Reporting, Revenue Reconciling Item
Sales to unaffiliated customers	2,519	2,021
Wood Products | Operating Segments
Segment Reporting, Revenue Reconciling Item
Sales to unaffiliated customers	2,519	2,021
Net contribution (charge) to earnings	$ 1,182	$ 840