XML 348 R63.htm IDEA: XBRL DOCUMENT v3.25.0.1
SEGMENT INFORMATION - Schedule of Segment Adjusted EBITDA and Reconciliation of Adjusted EBITDA to Net Income (Details) - USD ($)
$ in Millions
 12 Months Ended
Aug. 29, 2024
Sep. 29, 2023
Feb. 02, 2023
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Segment Reporting Information [Line Items]            
Segment Adjusted EBITDA       $ 568 $ 754 $ 678
Metal price lag       55 (92) (31)
Depreciation and amortization       (304) (300) (290)
Impairment of assets       (24) (22) (16)
Share based compensation costs       (25) (22) (18)
Pension and other post-employment benefits - non operating gains       11 14 2
Restructuring costs       (11) 0 (1)
Unrealized losses on derivatives       (1) (3) (48)
Unrealized exchange gains / (losses) from the remeasurement of monetary assets and liabilities – net       1 (2) (2)
(Losses) / gains on disposals       (4) 41 (5)
Other       2 (1) 0
Expenses on factoring arrangements       (22) (24) (16)
Finance costs - net       (111) (111) (103)
Income before tax       135 232 150
Income tax (expense) / benefit       (75) (75) 165
Net income       60 157 315
Other costs related to transformation projects       6    
Flooding of facilities in Valais, Switzerland            
Segment Reporting Information [Line Items]            
Insurance proceeds from catastrophes       45    
Loss from catastrophes       43    
Insurance proceeds from assets damaged       4    
A&T            
Segment Reporting Information [Line Items]            
Segment Adjusted EBITDA       285 351 228
P&ARP            
Segment Reporting Information [Line Items]            
Segment Adjusted EBITDA       242 305 328
AS&I            
Segment Reporting Information [Line Items]            
Segment Adjusted EBITDA       74 129 143
H&C            
Segment Reporting Information [Line Items]            
Segment Adjusted EBITDA       $ (33) $ (31) $ (21)
Railtech Alu-Singen            
Segment Reporting Information [Line Items]            
Fair value of assets acquired $ 3          
Disposal group, disposed of by sale, not discontinued operations | Constellium Ussel SAS            
Segment Reporting Information [Line Items]            
Gain (loss) on disposals     $ (3)      
Disposal group, disposed of by sale, not discontinued operations | Constellium Extrusions Deutschland GmbH            
Segment Reporting Information [Line Items]            
Gain (loss) on disposals   $ 47