INVENTORIES - Inventories (Details) - USD ($) $ in Millions	Sep. 30, 2025	Dec. 31, 2024
Inventory [Line Items]
Total	$ 588	$ 607
Logs
Inventory [Line Items]
LIFO inventories	23	23
Moving average cost or FIFO inventories	29	55
Lumber, plywood, oriented strand board and fiberboard
Inventory [Line Items]
LIFO inventories	81	82
Lumber, plywood, oriented strand board, fiberboard and engineered wood products
Inventory [Line Items]
Moving average cost or FIFO inventories	120	130
Other products
Inventory [Line Items]
LIFO inventories	10	14
Moving average cost or FIFO inventories	160	147
Materials and supplies
Inventory [Line Items]
Moving average cost or FIFO inventories	$ 165	$ 156