EQUITY METHOD INVESTMENTS Summarized Financial Information of Equity Method Investees (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Schedule of Equity Method Investments [Line Items]
Document Period End Date			Jun. 30, 2019
Graphic Packaging LLC [Member] | Reportable Subsegments
Schedule of Equity Method Investments [Line Items]
Current assets	$ 1,855		$ 1,855		$ 1,757
Noncurrent assets	5,420		5,420		5,292
Current liabilities	1,070		1,070		1,148
Noncurrent liabilities	3,403		3,403		3,156
Net sales	1,553	$ 1,509	3,059	$ 2,985
Gross profit	288	235	554	458
Income from continuing operations	105	81	200	143
Net income	105	81	200	143
Ilim Holding | Reportable Subsegments
Schedule of Equity Method Investments [Line Items]
Current assets	705		705		981
Noncurrent assets	2,234		2,234		1,710
Current liabilities	866		866		545
Noncurrent liabilities	1,417		1,417		1,470
Noncontrolling interests	21		21		$ 11
Net sales	594	698	1,213	1,375
Gross profit	304	402	640	776
Income from continuing operations	142	116	347	305
Net income	$ 137	$ 112	$ 336	$ 295