DISCONTINUED OPERATIONS AND OTHER DIVESTITURES - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Sep. 30, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Oct. 31, 2016
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from disposition of discontinued and other operations		$ 0	$ 403	$ 2,486
Uruguayan Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from disposition of discontinued and other operations	$ 403
Uruguay Operations [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Assets			0
Liabilities			0
Cellulose Fibers
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from disposition of discontinued and other operations				2,486
Pretax gain on Cellulose Fibers divestitures				789
Proceeds from divestiture used to repay debt				1,700
Gain on divestiture				546
Assets			0	0
Liabilities			$ 0	0
Pulp
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from disposition of discontinued and other operations				2,200
Liquid Packaging Board
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from disposition of discontinued and other operations				285
NORPAC
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from disposition of discontinued and other operations				42
NORPAC
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Equity method investment, ownership percentage					50.00%
Amount received from related party transaction				$ 126