v3.23.2
Restructuring and Other Charges - Restructuring and Other Charges by Segment (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2023
Jun. 30, 2022
Restructuring Cost and Reserve [Line Items]        
Restructuring and other charges (E) $ 9 $ 2 $ 9 $ 7
Operating segments        
Restructuring Cost and Reserve [Line Items]        
Restructuring and other charges (E) (1) 1 (1) 2
Operating segments | Rolled Products        
Restructuring Cost and Reserve [Line Items]        
Restructuring and other charges (E) 1 0 1 0
Operating segments | Building and Construction Systems        
Restructuring Cost and Reserve [Line Items]        
Restructuring and other charges (E) 0 0 0 0
Operating segments | Extrusions        
Restructuring Cost and Reserve [Line Items]        
Restructuring and other charges (E) 0 (1) 0 (2)
Corporate, Non-Segment        
Restructuring Cost and Reserve [Line Items]        
Restructuring and other charges (E) $ 10 $ 1 $ 10 $ 5