BUSINESS SEGMENTS - Reconciliation of Business Segment Information in Consolidated Statement of Operations (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Segment Reporting, Revenue Reconciling Item
Sales to unaffiliated customers	$ 2,973	$ 3,144	$ 6,085	$ 5,650
Net contribution (charge) to earnings	1,037	1,430	2,365	2,379
Interest expense, net of capitalized interest	(65)	(78)	(137)	(157)
Loss on debt extinguishment	0	0	(276)	0
Earnings before income taxes	972	1,352	1,952	2,222
Income taxes	(184)	(324)	(393)	(513)
Net earnings	788	1,028	1,559	1,709
Operating Segments
Segment Reporting, Revenue Reconciling Item
Sales to unaffiliated customers	3,129	3,280	6,402	5,920
Net contribution (charge) to earnings	1,081	1,514	2,526	2,528
Intersegment eliminations
Segment Reporting, Revenue Reconciling Item
Sales to unaffiliated customers	(156)	(136)	(317)	(270)
Unallocated items
Segment Reporting, Revenue Reconciling Item
Net contribution (charge) to earnings	(44)	(84)	(161)	(149)
Timberlands
Segment Reporting, Revenue Reconciling Item
Sales to unaffiliated customers	515	405	980	784
Timberlands \| Operating Segments
Segment Reporting, Revenue Reconciling Item
Sales to unaffiliated customers	515	405	980	784
Net contribution (charge) to earnings	153	113	335	221
Timberlands \| Intersegment eliminations
Segment Reporting, Revenue Reconciling Item
Sales to unaffiliated customers	156	136	317	270
Real Estate & ENR
Segment Reporting, Revenue Reconciling Item
Sales to unaffiliated customers	117	110	245	216
Real Estate & ENR \| Operating Segments
Segment Reporting, Revenue Reconciling Item
Sales to unaffiliated customers	117	110	245	216
Net contribution (charge) to earnings	65	63	146	129
Wood Products
Segment Reporting, Revenue Reconciling Item
Sales to unaffiliated customers	2,341	2,629	4,860	4,650
Wood Products \| Operating Segments
Segment Reporting, Revenue Reconciling Item
Sales to unaffiliated customers	2,341	2,629	4,860	4,650
Net contribution (charge) to earnings	$ 863	$ 1,338	$ 2,045	$ 2,178

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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