v3.26.1
FINANCIAL INFORMATION BY BUSINESS SEGMENT AND GEOGRAPHIC AREA (Details)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
USD ($)
Jun. 30, 2025
USD ($)
Jun. 30, 2026
USD ($)
Jun. 30, 2025
USD ($)
Dec. 31, 2025
USD ($)
Segment Reporting [Line Items]          
NET SALES $ 806 $ 794 $ 1,561 $ 1,615  
Cost of products sold and other 642 581 1,282 1,217  
Maintenance outages 41 66 58 93  
Economic downtime   0   3  
Selling and administrative expenses, excluding Corporate Special Items 65 72 137 145  
Depreciation, amortization and cost of timber harvested 43 45 84 85  
Other Nonrecurring (Income) Expense (1) 0 (1) 2  
Operating Income (Loss) 14 30 (1) 74  
Interest expense, net 11 10 20 19  
Foreign exchange gain on intercompany note (1)   (20) 0  
Assets 2,875 2,763 2,875 2,763 $ 2,763
Payments to Acquire Productive Assets $ 110 114      
Number of Reportable Segments 3        
Other Nonrecurring (Income) Expense, Net $ 3 0 4 2  
Net income (loss) (11) 15 (14) 42  
Income Tax Expense (Benefit) 12 5 9 11  
Europe Segment [Member]          
Segment Reporting [Line Items]          
NET SALES 192 181 380 371  
Latin America Segment [Member]          
Segment Reporting [Line Items]          
NET SALES 203 194 380 387  
North America Segment [Member]          
Segment Reporting [Line Items]          
NET SALES 411 419 801 857  
Operating Segments          
Segment Reporting [Line Items]          
NET SALES 806 794 1,561 1,615  
Revenue from Contracts with Customers, including Intersegment Sales 827 807 1,594 1,634  
Operating Segments | Europe Segment [Member]          
Segment Reporting [Line Items]          
NET SALES 192 181 380 371  
Cost of products sold and other 191 168 402 347  
Maintenance outages 3 28 3 40  
Economic downtime   0   0  
Selling and administrative expenses, excluding Corporate Special Items 11 15 24 30  
Depreciation, amortization and cost of timber harvested 7 8 15 16  
Other Nonrecurring (Income) Expense 0 0 0 0  
Operating Income (Loss) (20) (38) (64) (62)  
Assets 482 500 482 500  
Payments to Acquire Productive Assets 8 22      
Revenue from Contracts with Customers, including Intersegment Sales 197 181 387 371  
Operating Segments | Latin America Segment [Member]          
Segment Reporting [Line Items]          
NET SALES 203 194 380 387  
Cost of products sold and other 151 125 277 253  
Maintenance outages 21 20 24 21  
Economic downtime   0   0  
Selling and administrative expenses, excluding Corporate Special Items 22 23 45 44  
Depreciation, amortization and cost of timber harvested 24 23 45 41  
Other Nonrecurring (Income) Expense (1) (1) (1) 0  
Operating Income (Loss) (16) 2 (12) 28  
Assets 1,279 1,231 1,279 1,231  
Payments to Acquire Productive Assets 49 62      
Revenue from Contracts with Customers, including Intersegment Sales 219 207 406 406  
Operating Segments | North America Segment [Member]          
Segment Reporting [Line Items]          
NET SALES 411 419 801 857  
Cost of products sold and other 300 288 603 617  
Maintenance outages 17 18 31 32  
Economic downtime   0   3  
Selling and administrative expenses, excluding Corporate Special Items 32 34 68 71  
Depreciation, amortization and cost of timber harvested 12 14 24 28  
Other Nonrecurring (Income) Expense 0 1 0 2  
Operating Income (Loss) 50 66 75 108  
Assets 973 884 973 884  
Payments to Acquire Productive Assets 53 30      
Revenue from Contracts with Customers, including Intersegment Sales 411 419 801 857  
Segment Reconciling Items          
Segment Reporting [Line Items]          
Other Nonrecurring (Income) Expense (1) 0 (1) 2  
Interest expense, net 11 10 20 19  
Segment Reconciling Items | Georgetown Mill Offtake Termination          
Segment Reporting [Line Items]          
Other Nonrecurring (Income) Expense 0 1 0 2  
Segment Reconciling Items | Brazil Environmental Reserve Adjustment          
Segment Reporting [Line Items]          
Other Nonrecurring (Income) Expense (1) 0 (1) 1  
Segment Reconciling Items | Brazil Foreign Value-Added Tax Refund          
Segment Reporting [Line Items]          
Other Nonrecurring (Income) Expense 0 (1) 0 (1)  
Intersegment Eliminations [Member]          
Segment Reporting [Line Items]          
NET SALES (21) (13) (33) (19)  
Intersegment Eliminations [Member] | Europe Segment [Member]          
Segment Reporting [Line Items]          
NET SALES (5) 0 (7) 0  
Intersegment Eliminations [Member] | Latin America Segment [Member]          
Segment Reporting [Line Items]          
NET SALES (16) (13) (26) (19)  
Intersegment Eliminations [Member] | North America Segment [Member]          
Segment Reporting [Line Items]          
NET SALES 0 0 0 0  
Segment Reporting, Reconciling Item, Corporate Nonsegment          
Segment Reporting [Line Items]          
Other Nonrecurring (Income) Expense 4 0 5 0  
Assets 141 148 141 148  
Segment Reporting, Reconciling Item, Corporate Nonsegment | Strategic Professional and Legal Fees          
Segment Reporting [Line Items]          
Other Nonrecurring (Income) Expense 4 0 4 0  
Segment Reporting, Reconciling Item, Corporate Nonsegment | Other Charges          
Segment Reporting [Line Items]          
Other Nonrecurring (Income) Expense $ 0 $ 0 $ 1 $ 0