EQUITY METHOD INVESTMENTS Summarized Financial Information of Equity Method Investees (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Schedule of Equity Method Investments [Line Items]
Assets, Current	$ 9,896		$ 9,896		$ 11,236
Current liabilities	4,698		4,698		8,284
Net income (loss)	864	$ 204	1,647	$ 329
Reportable Subsegments | Ilim Holding
Schedule of Equity Method Investments [Line Items]
Assets, Current	935		935		739
Noncurrent assets	3,069		3,069		2,733
Current liabilities	711		711		674
Noncurrent liabilities	2,487		2,487		2,249
Net sales	729	498	1,993	1,474
Gross profit	393	191	1,051	597
Income (loss) from continuing operations	190	(62)	498	7
Net income (loss)	182	$ (60)	481	$ 7
Noncontrolling interests	$ 34		$ 34		$ 17