v3.26.1
ACQUISITIONS - Schedule of Pro Forma Information (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
North Pacific Paper Company        
Business Combination, Pro Forma Information [Line Items]        
Net Sales $ 6,118 $ 6,294 $ 12,258 $ 11,714
Net Earnings (Loss) $ (19) 70 $ 39 (43)
DS Smith Plc        
Business Combination, Pro Forma Information [Line Items]        
Net Sales   6,767   13,403
Net Earnings (Loss)   $ 104   $ (16)