EQUITY METHOD INVESTMENTS Narrative (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]
Equity earnings (loss), net of taxes	$ 80	$ 70	$ 194	$ 165
Document Period End Date			Jun. 30, 2019
Equity method dividends received			$ 251	122
Reportable Subsegments | Graphic Packaging LLC [Member]
Schedule of Equity Method Investments [Line Items]
Percentage of equity interest	20.50%		20.50%
Equity earnings (loss), net of taxes	$ 14	15	$ 27	17
Equity method dividends received			12	6
Equity method investments	1,100		1,100		$ 1,100
Equity method investment, difference between carrying amount and underlying equity	565		565		562
Revenue from related parties	$ 74	58	$ 143	118
Reportable Subsegments | Ilim Holding
Schedule of Equity Method Investments [Line Items]
Percentage of equity interest	50.00%		50.00%
Equity earnings (loss), net of taxes	$ 67	57	$ 168	149
Equity method dividends received			239	116
Equity method investments	466		466		478
Equity method investment, difference between carrying amount and underlying equity	149		149		$ 145
Related party transaction, purchases from related party	$ 59	$ 56	$ 112	$ 109