Segment Disclosures - Analysis and Reconciliation of Reportable Segment Information (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Segment Reporting Information [Line Items]
Sales	$ 1,010	$ 871
Consolidated operating income (loss) from continuing operations	25	(9)
Interest expense, net	21	15
Non-service components of net periodic benefit cost	(9)	(6)
Earnings (loss) before income taxes	13	(18)
Income tax expense (benefit) (NOTE 7)	3	(3)
Earnings (loss) from continuing operations	10	(15)
Earnings (loss) from discontinued operations, net of taxes (NOTE 3)	13	(14)
Net earnings (loss)	23	(29)
Successors
Segment Reporting Information [Line Items]
Sales	1,010
Consolidated operating income (loss) from continuing operations	25
Interest expense, net	21
Non-service components of net periodic benefit cost	(9)
Earnings (loss) before income taxes	13
Income tax expense (benefit) (NOTE 7)	3
Earnings (loss) from continuing operations	10
Earnings (loss) from discontinued operations, net of taxes (NOTE 3)	13
Net earnings (loss)	23
Operating Segments [Member] | Communication Paper [Member]
Segment Reporting Information [Line Items]
Sales		488
Operating Segments [Member] | Specialty and Packaging Paper [Member]
Segment Reporting Information [Line Items]
Sales		137
Operating Segments [Member] | Market Pulp [Member]
Segment Reporting Information [Line Items]
Sales		246
Operating Segments [Member] | Pulp and Paper [Member]
Segment Reporting Information [Line Items]
Consolidated operating income (loss) from continuing operations		1
Operating Segments [Member] | Successors | Communication Paper [Member]
Segment Reporting Information [Line Items]
Sales	579
Operating Segments [Member] | Successors | Specialty and Packaging Paper [Member]
Segment Reporting Information [Line Items]
Sales	175
Operating Segments [Member] | Successors | Market Pulp [Member]
Segment Reporting Information [Line Items]
Sales	256
Operating Segments [Member] | Successors | Pulp and Paper [Member]
Segment Reporting Information [Line Items]
Consolidated operating income (loss) from continuing operations	39
Corporate [Member]
Segment Reporting Information [Line Items]
Consolidated operating income (loss) from continuing operations		$ (10)
Corporate [Member] | Successors
Segment Reporting Information [Line Items]
Consolidated operating income (loss) from continuing operations	$ (14)