v3.26.1
Commitments and Contingencies (Details) - USD ($)
$ in Millions
3 Months Ended
Jun. 30, 2026
Mar. 31, 2026
Loss Contingencies    
Accrual for environmental loss contingencies $ 41 $ 42
Accrual for environmental loss contingencies, current 22  
Antidumping Duties    
Loss Contingencies    
Cash 127  
From 2008 to 2014    
Loss Contingencies    
Contribution for Financing of Social Security, tax credit 43  
From 2015 to 2017    
Loss Contingencies    
Contribution for Financing of Social Security, tax credit 28  
SEC Schedule, 12-09, Reserve, Environmental Cost    
Loss Contingencies    
Accrual for environmental loss contingencies 15  
BRAZIL    
Loss Contingencies    
Estimated litigation liability 43 $ 40
Restructuring Action    
Loss Contingencies    
Accrual for environmental loss contingencies 3  
Undiscounted Environmental Clean-Up Costs    
Loss Contingencies    
Accrual for environmental loss contingencies 23  
Minimum    
Loss Contingencies    
Range of possible loss 0  
Maximum    
Loss Contingencies    
Range of possible loss $ 138