EQUITY METHOD INVESTMENTS Summarized Financial Information of Equity Method Investees (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Schedule of Equity Method Investments [Line Items]
Current assets	$ 6,599		$ 6,599		$ 6,639
Current liabilities	8,330		8,330		8,646
Net earnings (loss)	266	$ 286	125	$ 712
Reportable Subsegments | Graphic Packaging LLC [Member]
Schedule of Equity Method Investments [Line Items]
Current assets	2,043		2,043		1,796
Noncurrent assets	5,615		5,615		5,482
Current liabilities	1,586		1,586		1,178
Noncurrent liabilities	3,459		3,459		3,244
Net sales	1,611	1,553	3,210	3,059
Gross profit	262	288	583	554
Income from continuing operations	81	105	57	200
Net earnings (loss)	81	105	57	200
Reportable Subsegments | Ilim Holding
Schedule of Equity Method Investments [Line Items]
Current assets	608		608		804
Noncurrent assets	2,676		2,676		2,813
Current liabilities	750		750		1,015
Noncurrent liabilities	2,006		2,006		1,844
Net sales	494	594	976	1,213
Gross profit	210	304	405	640
Income from continuing operations	130	142	69	347
Net earnings (loss)	125	$ 137	67	$ 336
Noncontrolling interests	$ 17		$ 17		$ 16