RESTRUCTURING CHARGES - Charges Incurred Related to Shutdown (Detail) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Restructuring and Related Cost [Abstract]
Restructuring charges	$ 8	$ 4	$ 40	$ 0	$ (1)	$ 0	$ 1	$ 1	$ 52	$ 1	$ 9
Closure of Luke Mill
Restructuring and Related Cost [Abstract]
Restructuring charges									52
Cumulative Incurred	52								52
Closure of Luke Mill | Property, plant and equipment, net
Restructuring and Related Cost [Abstract]
Restructuring charges									10
Cumulative Incurred	10								10
Closure of Luke Mill | Severance and benefit costs
Restructuring and Related Cost [Abstract]
Restructuring charges									19
Cumulative Incurred	19								19
Closure of Luke Mill | Write-off of spare parts, inventory and other assets
Restructuring and Related Cost [Abstract]
Restructuring charges									9
Cumulative Incurred	9								9
Closure of Luke Mill | Write-off of purchase obligations and commitments
Restructuring and Related Cost [Abstract]
Restructuring charges									1
Cumulative Incurred	1								1
Closure of Luke Mill | Other costs
Restructuring and Related Cost [Abstract]
Restructuring charges									13
Cumulative Incurred	13								13
Facility Closing
Restructuring and Related Cost [Abstract]
Restructuring charges										(1)	4
Cumulative Incurred	5								5
Facility Closing | Severance and benefit costs
Restructuring and Related Cost [Abstract]
Restructuring charges										0	1
Cumulative Incurred	3								3
Facility Closing | Write-off of purchase obligations
Restructuring and Related Cost [Abstract]
Restructuring charges										(1)	2
Cumulative Incurred	1								1
Facility Closing | Other costs
Restructuring and Related Cost [Abstract]
Restructuring charges										0	1
Cumulative Incurred	1								1
Androscoggin - Wickliffe Capacity Reduction
Restructuring and Related Cost [Abstract]
Restructuring charges										2	5
Cumulative Incurred	16								16
Androscoggin - Wickliffe Capacity Reduction | Severance and benefit costs
Restructuring and Related Cost [Abstract]
Restructuring charges										0	0
Cumulative Incurred	5								5
Androscoggin - Wickliffe Capacity Reduction | Write-off of purchase obligations and commitments
Restructuring and Related Cost [Abstract]
Restructuring charges										0	2
Cumulative Incurred	3								3
Androscoggin - Wickliffe Capacity Reduction | Other costs
Restructuring and Related Cost [Abstract]
Restructuring charges										$ 2	$ 3
Cumulative Incurred	$ 8								$ 8