BUSINESS SEGMENTS - Total Assets (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	$ 16,983	$ 17,340
Operating segments | Timberlands and Real Estate & ENR
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	12,596	12,682
Operating segments | Wood Products
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	3,073	2,933
Unallocated Items
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	$ 1,314	$ 1,725