INCOME TAXES (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Income Tax Examination [Line Items]
Income tax provision	$ 31	$ 37	$ 42	$ 84
Effective income tax rate reconciliation, percent	35.00%	28.00%	30.00%	28.00%
Income tax examination, estimate of possible loss			$ 110
Income tax examination, penalties and interest expense			279
Income tax examination, tax liability, threshold	$ 300		$ 300
International Paper
Income Tax Examination [Line Items]
Income tax examination, tax liabilities payable, percentage	60.00%		60.00%
Sylvamo
Income Tax Examination [Line Items]
Income tax examination, tax liabilities payable, percentage	40.00%		40.00%