BUSINESS SEGMENTS - Total Assets (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	$ 16,536	$ 16,983
Operating segments | Timberlands and Real Estate & ENR
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	12,545	12,596
Operating segments | Wood Products
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	3,116	3,073
Unallocated Items
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	$ 875	$ 1,314