EQUITY METHOD INVESTMENTS Summarized Financial Information of Equity Method Investees (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Schedule of Equity Method Investments [Line Items]
Assets, Current	$ 11,288		$ 11,288		$ 6,639
Current liabilities	8,476		8,476		8,646
Net earnings (loss)	204	$ 342	329	$ 1,054
Reportable Subsegments | Graphic Packaging LLC [Member]
Schedule of Equity Method Investments [Line Items]
Assets, Current	2,013		2,013		1,796
Noncurrent assets	5,662		5,662		5,482
Current liabilities	1,692		1,692		1,178
Noncurrent liabilities	3,617		3,617		3,244
Net sales	1,698	1,581	4,908	4,640
Gross profit	255	266	838	820
Income from continuing operations	89	83	146	283
Net earnings (loss)	89	83	146	283
Reportable Subsegments | Ilim Holding
Schedule of Equity Method Investments [Line Items]
Assets, Current	592		592		804
Noncurrent assets	2,442		2,442		2,813
Current liabilities	613		613		1,015
Noncurrent liabilities	2,015		2,015		1,844
Net sales	498	479	1,474	1,692
Gross profit	191	196	597	836
Income from continuing operations	(62)	41	7	388
Net earnings (loss)	(60)	$ 40	7	$ 375
Noncontrolling interests	$ 13		$ 13		$ 16