v3.26.1
Restructuring and Other Charges - Narrative (Details)
$ in Millions
1 Months Ended 3 Months Ended 6 Months Ended
Jul. 17, 2026
USD ($)
Jan. 31, 2026
USD ($)
employee
T
Mar. 31, 2025
USD ($)
employee
T
Jun. 30, 2026
USD ($)
Jun. 30, 2025
USD ($)
Jun. 30, 2026
USD ($)
Jun. 30, 2025
USD ($)
Dec. 31, 2025
USD ($)
Dec. 31, 2024
USD ($)
Restructuring Cost and Reserve [Line Items]                  
Restructuring and other charges       $ 4 $ 42 $ 18 $ 128    
Non-cash charges       0 9 3 63    
Cash charges       4 33 15 65    
Cash Payments           29 27    
Changes in Reserves           12 53    
Restructuring reserve       11 28 11 28 $ 28 $ 0
Proceeds from dispositions and asset sales           15 2    
Botlek closure                  
Restructuring Cost and Reserve [Line Items]                  
Plant capacity | T     90,000            
Number of employees impacted | employee     240            
Restructuring and related charges, expected cost     $ 184            
Restructuring and other charges       2 42 11 128    
Non-cash charges       0 9 3 63    
Cash charges       2 33 8 65    
Cash Payments           13 27    
Changes in Reserves           8 53    
Restructuring reserve       11 28 11 28 16 $ 0
Fuzhou closure                  
Restructuring Cost and Reserve [Line Items]                  
Plant capacity | T   46,000              
Number of employees impacted | employee   550              
Restructuring and related charges, expected cost   $ 66              
Restructuring and other charges       2   7      
Non-cash charges       0   0      
Cash charges       2   7      
Cash Payments       16   16      
Changes in Reserves       4   4      
Restructuring reserve       0   0   12  
Fuzhou closure | Subsequent Event                  
Restructuring Cost and Reserve [Line Items]                  
Proceeds from dispositions and asset sales $ 14                
Derecognition of net liability on disposal 6                
Gain on disposal $ 20                
Balance Sheet Location [Axis]: us-gaap:AccruedLiabilitiesCurrent                  
Restructuring Cost and Reserve [Line Items]                  
Restructuring reserve       7   7   23  
Balance Sheet Location [Axis]: us-gaap:OtherLiabilitiesNoncurrent                  
Restructuring Cost and Reserve [Line Items]                  
Restructuring reserve       4   4   $ 5  
Idling Activities                  
Restructuring Cost and Reserve [Line Items]                  
Cash charges       2 24 8 30    
Idling Activities | Botlek closure                  
Restructuring Cost and Reserve [Line Items]                  
Restructuring and related charges, expected cost     $ 74            
Cash charges       1 24 5 30    
Idling Activities | Fuzhou closure                  
Restructuring Cost and Reserve [Line Items]                  
Restructuring and related charges, expected cost   $ 38              
Cash charges       1   3      
Severance and employee benefits                  
Restructuring Cost and Reserve [Line Items]                  
Cash charges       2 9 6 17    
Severance and employee benefits | Botlek closure                  
Restructuring Cost and Reserve [Line Items]                  
Cash charges       1 9 2 17    
Severance and employee benefits | Fuzhou closure                  
Restructuring Cost and Reserve [Line Items]                  
Cash charges       1   4      
Asset retirement obligation adjustments                  
Restructuring Cost and Reserve [Line Items]                  
Cash charges       0 0 0 11    
Asset retirement obligation adjustments | Botlek closure                  
Restructuring Cost and Reserve [Line Items]                  
Cash charges       0 0 0 11    
Asset retirement obligation adjustments | Fuzhou closure                  
Restructuring Cost and Reserve [Line Items]                  
Cash charges       0   0      
Contract abandonment and other changes                  
Restructuring Cost and Reserve [Line Items]                  
Cash charges       0 0 1 7    
Contract abandonment and other changes | Botlek closure                  
Restructuring Cost and Reserve [Line Items]                  
Cash charges       0 0 1 7    
Contract abandonment and other changes | Fuzhou closure                  
Restructuring Cost and Reserve [Line Items]                  
Cash charges       0   0      
Environmental liability                  
Restructuring Cost and Reserve [Line Items]                  
Cash charges       0 0 0 0    
Environmental liability | Botlek closure                  
Restructuring Cost and Reserve [Line Items]                  
Cash charges       0 $ 0 0 $ 0    
Environmental liability | Fuzhou closure                  
Restructuring Cost and Reserve [Line Items]                  
Cash charges       $ 0   $ 0