v3.26.1
RESTRUCTURING CHARGES, NET - Schedule of Restructuring and Related Costs (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Restructuring Cost and Reserve [Line Items]    
Restructuring charges, net $ 23 $ 83
Riceboro mill closure costs    
Restructuring Cost and Reserve [Line Items]    
Restructuring charges, net 7  
Severance costs 3  
Other restructuring costs 4  
Resource and asset realignment - PS EMEA    
Restructuring Cost and Reserve [Line Items]    
Restructuring charges, net 8  
Severance costs 4  
Other restructuring costs 4  
Resource and asset realignment - PS EMEA | Accrued Payroll and Benefits    
Restructuring Cost and Reserve [Line Items]    
Restructuring reserve 3  
Resource and asset realignment - PS NA    
Restructuring Cost and Reserve [Line Items]    
Restructuring charges, net 8 5
Other restructuring costs 2  
Resource and asset realignment - PS NA | Accrued Payroll and Benefits    
Restructuring Cost and Reserve [Line Items]    
Restructuring reserve $ 6  
Red River Mill    
Restructuring Cost and Reserve [Line Items]    
Restructuring charges, net   78
Severance costs   17
Other restructuring costs   39
Inventory write-down   22
80/20 Strategic Approach    
Restructuring Cost and Reserve [Line Items]    
Other restructuring costs   $ 5