v3.22.2.2
Segment and Related Information​ - Segment Operating Profit (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]        
Segment Adjusted EBITDA $ 147 $ 182 $ 577 $ 571
Corporate expenses(1) (4) (7) (23) (26)
Stock-based compensation expense (6) (8) (19) (15)
Metal Price Lag 15 (21) 9 (27)
Unrealized Gain (Loss) on Derivatives (7) 0 16 0
Provision for depreciation and amortization (59) (61) (181) (186)
Restructuring, Settlement And Impairment Provisions, Including Gain (Loss) On Disposition Of Assets And Business (112) (14) (119) (612)
Other (10) (3) (56) (19)
Operating (loss) income (36) 68 204 (314)
Interest expense (27) (26) (78) (74)
Other expenses, net (27) (15) (9) (52)
(Benefit) Provision for income taxes 25 (11) (25) 81
Less: Net income attributable to noncontrolling interest 0 0 (1) 0
Net Income (Loss) Attributable to Parent (65) 16 91 (359)
Labor Agreement, One Time Signing Bonus     19  
Accrual for Environmental Loss Contingencies, Period Increase (Decrease) 11   22  
Cost of Sales        
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]        
Labor Agreement, One Time Signing Bonus     19  
Accrual for Environmental Loss Contingencies, Period Increase (Decrease) 9   18  
Extrusions        
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]        
Asset Impairment Charges 92   92  
Operating segments        
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]        
Segment Adjusted EBITDA 147 182 577 571
Provision for depreciation and amortization (57) (58) (173) (175)
Restructuring, Settlement And Impairment Provisions, Including Gain (Loss) On Disposition Of Assets And Business (91) (3) (93) (6)
Operating segments | Rolled Products        
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]        
Segment Adjusted EBITDA 111 155 461 493
Provision for depreciation and amortization (48) (48) (145) (145)
Restructuring, Settlement And Impairment Provisions, Including Gain (Loss) On Disposition Of Assets And Business 1 0 1 (1)
Operating segments | Building and Construction Systems        
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]        
Segment Adjusted EBITDA 49 34 146 97
Provision for depreciation and amortization (4) (4) (13) (13)
Restructuring, Settlement And Impairment Provisions, Including Gain (Loss) On Disposition Of Assets And Business (2) 0 (2) 1
Operating segments | Extrusions        
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]        
Segment Adjusted EBITDA 13 7 30 19
Provision for depreciation and amortization (5) (6) (15) (17)
Restructuring, Settlement And Impairment Provisions, Including Gain (Loss) On Disposition Of Assets And Business $ (88) $ 3 $ (90) $ 6