RELATED PARTY TRANSACTIONS - Summary of Components of Net Transfers From (To) Parent (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Related Party Transaction [Line Items]
Net transfers from Parent		$ (74)		$ 8
Affiliated Entity | International Paper
Related Party Transaction [Line Items]
Net transfers from Parent	$ 0	(74)	$ 0	8
Affiliated Entity | General financing activities | International Paper
Related Party Transaction [Line Items]
Net transfers from Parent	0	(120)	0	(79)
Affiliated Entity | Corporate allocations | International Paper
Related Party Transaction [Line Items]
Net transfers from Parent	0	42	0	80
Affiliated Entity | Stock-based compensation | International Paper
Related Party Transaction [Line Items]
Net transfers from Parent	$ 0	$ 4	$ 0	$ 7