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Other Income (Expense), Net - Components of Other Income (Expense), Net (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]    
Asset disposals and write-offs $ (6.6) $ (12.7)
Facilities closure and other costs [1] (4.7) (0.4)
Other (1.5) (2.1)
Total (12.5) (15.6)
Jackson, Alabama Mill    
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]    
Conversion-related activities [2] $ 0.3 $ (0.4)
[1] For 2023, includes charges consisting of closure costs related to corrugated products facilities and design centers. For 2022, includes charges consisting of closure costs related to corrugated products facilities and acquisition and integration costs related to the December 2021 Advance Packaging acquisition.
[2] ncludes items related to the announced discontinuation of production of uncoated freesheet paper grades on the No. 3 machine at the Jackson, Alabama mill associated with the permanent conversion of the machine to produce linerboard and other paper-to-containerboard conversion related activities.