v3.24.2

GENERAL INFORMATION - Additional Information (Details)				3 Months Ended	6 Months Ended	12 Months Ended
	Sep. 08, 2023 USD ($) packaging_facility	Feb. 07, 2023 USD ($) mill	Jan. 31, 2023 USD ($)	Jun. 30, 2022 packaging_facility	Jun. 30, 2024 USD ($) $ / shares	Dec. 31, 2023 USD ($)	May 01, 2024 USD ($)	Jul. 27, 2023 USD ($)	Jan. 28, 2019 USD ($)
Equity, Class of Treasury Stock [Line Items]
Cash dividends declared (in dollars per share) | $ / shares					$ 0.10
Accounts payable					$ 31,000,000	$ 30,000,000
Investment in new CRB Mill					118,000,000	145,000,000
Other assets, current					130,000,000	$ 94,000,000
Number of packaging facilities | packaging_facility				2
Augusta, Georgia Paperboard Manufacturing Facility
Equity, Class of Treasury Stock [Line Items]
Sales							$ 711,000,000
Multiple Packaging Facilities
Equity, Class of Treasury Stock [Line Items]
Other assets, current					11,000,000
CRB Mill
Equity, Class of Treasury Stock [Line Items]
Investments		$ 1,000,000,000
Facility Closing
Equity, Class of Treasury Stock [Line Items]
Number of additional mills expected to close | mill		2
Tama Paperboard, LLC
Equity, Class of Treasury Stock [Line Items]
Acquisition related costs			$ 1,000,000
Purchase Price			$ 100,000,000
Bell Incorporated
Equity, Class of Treasury Stock [Line Items]
Purchase Price	$ 262,000,000
Number of packaging facilities | packaging_facility	3
K3 CRB Machine | Decommission | Kalamazoo, Michigan
Equity, Class of Treasury Stock [Line Items]
Accelerated depreciation related to plant closure					2,000,000
Minimum | K3 CRB Machine | Decommission | Kalamazoo, Michigan
Equity, Class of Treasury Stock [Line Items]
Expected start-up costs					5,000,000
Maximum | K3 CRB Machine | Decommission | Kalamazoo, Michigan
Equity, Class of Treasury Stock [Line Items]
Expected start-up costs					10,000,000
Share Repurchase Program 2019
Equity, Class of Treasury Stock [Line Items]
Share repurchase program, authorized amount								$ 500,000,000	$ 500,000,000
Stock repurchase program, remaining authorized repurchase amount					$ 365,000,000

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