EQUITY METHOD INVESTMENTS Summarized Financial Information of Equity Method Investees (Details) - Reportable Subsegments - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Graphic Packaging LLC [Member]
Schedule of Equity Method Investments [Line Items]
Current assets	$ 1,943		$ 1,943
Noncurrent assets	5,347		5,347
Current liabilities	1,143		1,143
Noncurrent liabilities	3,150		3,150
Net sales	1,530		4,515
Gross profit	256		714
Income from continuing operations	135		278
Net income	135		278
Ilim Holding
Schedule of Equity Method Investments [Line Items]
Current assets	741		741		$ 689
Noncurrent assets	1,702		1,702		1,696
Current liabilities	393		393		1,039
Noncurrent liabilities	1,460		1,460		972
Noncontrolling interests	17		17		$ 6
Net sales	655	$ 523	2,030	$ 1,518
Gross profit	376	252	1,152	715
Income from continuing operations	149	99	454	249
Net income	$ 143	$ 95	$ 438	$ 237