RESTRUCTURING CHARGES - Changes in Restructuring Reserve Liabilities (Detail) - USD ($)	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 Reserve [Roll Forward]
Purchase obligations	$ 8,000,000	$ 4,000,000	$ 40,000,000	$ 0	$ (1,000,000)	$ 0	$ 1,000,000	$ 1,000,000	$ 52,000,000	$ 1,000,000	$ 9,000,000
Closure of Luke Mill
Restructuring Reserve [Roll Forward]
Beginning balance of reserve				0					0
Severance and benefit costs									19,000,000
Purchase obligations									52,000,000
Other costs									13,000,000
Ending balance of reserve	4,000,000				0				4,000,000	0
Closure of Luke Mill | Severance and benefit costs
Restructuring Reserve [Roll Forward]
Restructuring payments									(17,000,000)
Purchase obligations									19,000,000
Closure of Luke Mill | Severance and benefits reserve adjustments
Restructuring Reserve [Roll Forward]
Severance and benefit costs									1,000,000
Closure of Luke Mill | Purchase obligations
Restructuring Reserve [Roll Forward]
Restructuring payments									(1,000,000)
Purchase obligations									1,000,000
Closure of Luke Mill | Payments on other costs
Restructuring Reserve [Roll Forward]
Restructuring payments									(10,000,000)
Purchase obligations									13,000,000
Facility Closing
Restructuring Reserve [Roll Forward]
Beginning balance of reserve				0				2,000,000	0	2,000,000	3,000,000
Purchase obligations										(1,000,000)	4,000,000
Other costs										0	1,000,000
Ending balance of reserve	0				0				0	0	2,000,000
Facility Closing | Severance and benefit costs
Restructuring Reserve [Roll Forward]
Severance and benefit costs										0	1,000,000
Restructuring payments										0	(4,000,000)
Purchase obligations										0	1,000,000
Facility Closing | Purchase obligations
Restructuring Reserve [Roll Forward]
Restructuring payments										(1,000,000)	0
Purchase obligations										0	2,000,000
Facility Closing | Purchase obligations adjustments
Restructuring Reserve [Roll Forward]
Restructuring payments										(1,000,000)	0
Facility Closing | Payments on other costs
Restructuring Reserve [Roll Forward]
Restructuring payments										0	(1,000,000)
Purchase obligations										0	1,000,000
Androscoggin - Wickliffe Capacity Reduction
Restructuring Reserve [Roll Forward]
Beginning balance of reserve				$ 0				$ 1,000,000	0	1,000,000	6,000,000
Purchase obligations										2,000,000	5,000,000
Other costs										2,000,000	3,000,000
Ending balance of reserve	$ 0				$ 0				$ 0	0	1,000,000
Androscoggin - Wickliffe Capacity Reduction | Severance and benefit costs
Restructuring Reserve [Roll Forward]
Restructuring payments										(1,000,000)	(5,000,000)
Purchase obligations										0	0
Androscoggin - Wickliffe Capacity Reduction | Purchase obligations
Restructuring Reserve [Roll Forward]
Restructuring payments										0	(2,000,000)
Purchase obligations										0	2,000,000
Androscoggin - Wickliffe Capacity Reduction | Payments on other costs
Restructuring Reserve [Roll Forward]
Restructuring payments										(2,000,000)	(3,000,000)
Purchase obligations										$ 2,000,000	$ 3,000,000