v3.22.1
Restructuring and Other Charges - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Dec. 31, 2021
Restructuring Cost and Reserve [Line Items]      
Restructuring and other charges (E) $ 5 $ 1  
Cash payments, restructuring 2   $ 15
Environmental remediation, payments 4    
Fusina, Italy      
Restructuring Cost and Reserve [Line Items]      
Environmental remediation, payments 1    
Other miscellaneous costs      
Restructuring Cost and Reserve [Line Items]      
Cash payments, restructuring 1   5
Layoff costs      
Restructuring Cost and Reserve [Line Items]      
Cash payments, restructuring 1   $ 10
2022 Restructuring Programs | Legal Matters, Other      
Restructuring Cost and Reserve [Line Items]      
Restructuring and other charges (E) 4    
2022 Restructuring Programs | One-time Termination Benefits      
Restructuring Cost and Reserve [Line Items]      
Restructuring and other charges (E) 1    
2022 Restructuring Programs | Idling of Operations | Extrusions      
Restructuring Cost and Reserve [Line Items]      
Restructuring and other charges (E) $ 1    
2021 Restructuring Programs | Disposals | Aluminum Rolling Mill in Itapissuma, Brazil      
Restructuring Cost and Reserve [Line Items]      
Restructuring and other charges (E)   1  
2020 Restructuring Programs | Reversal of Reserve [Member]      
Restructuring Cost and Reserve [Line Items]      
Restructuring and other charges (E)   (1)  
2020 Restructuring Programs | Other miscellaneous costs      
Restructuring Cost and Reserve [Line Items]      
Restructuring and other charges (E)   $ 1