SUPPLEMENTARY FINANCIAL STATEMENT INFORMATION - Inventories (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Raw materials	$ 60	$ 40
Finished paper and pulp products	213	226
Operating supplies	109	78
Other	22	20
Total	$ 404	364
Inventory, LIFO reserve percentage	63.00%
Last-in, first-out inventory reserve	$ 81	$ 54
Effect of LIFO Inventory Liquidation on Income	$ 2