RETIREMENT BENEFITS - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Feb. 10, 2020
Defined Benefit Plan Disclosure [Line Items]
Number of employees covered, percentage	64.00%
Verso Androscoggin, LLC | Pixelle | Subsequent Event
Defined Benefit Plan Disclosure [Line Items]
Unfunded pension liabilities assumed by Pixelle				$ 35
Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Settlement gain	$ 13	$ 0	$ 0
Contribution made by employer	42	43	$ 32
Expected cash contributions	54
Accumulated benefit obligation	1,542	$ 1,590
Level 3
Defined Benefit Plan Disclosure [Line Items]
Transfers into (out of) Level 3	$ (1)