v3.23.1
Segment and Related Information​ - Segment Operating Profit (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]    
Corporate Expenses $ (9) $ (9)
Stock-based compensation expense (6) (5)
Metal Price Lag 0 (36)
Unrealized Gain (Loss) on Derivatives (20) 2
Provision for depreciation and amortization (53) (60)
Restructuring, Settlement And Impairment Provisions, Including Gain (Loss) On Disposition Of Assets And Business 0 (5)
Other (8) (6)
Operating income 71 96
Interest expense (25) (25)
Other expenses, net (11) (17)
Provision for income taxes (10) (12)
Less: Net income attributable to noncontrolling interest 0 0
Net Income (Loss) Attributable to Parent 25 42
Operating segments    
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]    
Segment Adjusted EBITDA 167 215
Provision for depreciation and amortization (49) (56)
Restructuring, Settlement And Impairment Provisions, Including Gain (Loss) On Disposition Of Assets And Business $ 0 $ (1)