v3.22.2.2
Contingencies and Commitments​ (Details)
$ in Millions
 3 Months Ended 9 Months Ended 12 Months Ended
Mar. 31, 2022
claimant
Mar. 29, 2022
defendant
claimant
Dec. 23, 2020
claimant
defendant
Jun. 26, 2020
claimant
Jun. 12, 2020
firefighter
police_officer
claimant
Jun. 11, 2020
firefighter
Mar. 17, 2020
subsidiary
Jun. 06, 2019
plaintiff
Sep. 15, 2017
executive
Sep. 30, 2022
USD ($)
Jun. 30, 2022
USD ($)
Mar. 31, 2022
USD ($)
Sep. 30, 2021
USD ($)
Sep. 30, 2022
USD ($)
police_officer
claimant
firefighter
yr
Sep. 30, 2021
USD ($)
Dec. 31, 2021
USD ($)
Dec. 31, 2023
USD ($)
Dec. 31, 2022
USD ($)
Site Contingency [Line Items]                                    
Environmental remediation                   $ 79       $ 79   $ 64    
Environmental remediation, current                   27       27   15    
Accrual for Environmental Loss Contingencies, Period Increase (Decrease)                   11       22        
Environmental remediation, payments                   1       7        
Cash and cash equivalents                   312       312   335    
Accounts Receivable, after Allowance for Credit Loss, Current                   846       846   922    
Inventories                   1,750       1,750   1,630    
Property, Plant and Equipment, Net                   2,478       2,478   2,651    
Accounts Payable, Trade, Current                   1,489       1,489   1,718    
Total sales                   2,280     $ 1,890 7,019 $ 5,366      
Segment Adjusted EBITDA                   147     $ 182 577 571      
Accrual For Environmental Loss Contingencies, Increase (Decrease) For Other Items                           2        
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect                           (23) $ (438)      
Revolving Credit Facility | ABL Credit Agreement | Senior Secured Credit Facility                                    
Site Contingency [Line Items]                                    
Debt Instrument, Unused Borrowing Capacity, Amount                   1,039       1,039        
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect                           95        
RUSSIAN FEDERATION                                    
Site Contingency [Line Items]                                    
Cash and cash equivalents                   174       174   79    
Accounts Receivable, after Allowance for Credit Loss, Current                   98       98   120    
Inventories                   122       122   102    
Property, Plant and Equipment, Net                   186       186   200    
Accounts Payable, Trade, Current                   $ 27       27   47    
Total sales                           787   968    
Segment Adjusted EBITDA                           $ 62   $ 87    
Percentage Of Liquidity                   13.00%       13.00%        
Percentage Of Third Party Sales                           14.00%   16.00%    
Percentage of Segment Adjusted EBITDA                           13.00%        
Net Assets                   $ 520       $ 520        
RUSSIAN FEDERATION | Forgings                                    
Site Contingency [Line Items]                                    
Percentage Of Third Party Sales                           1.00%        
Federal Antimonopoly Services Of The Russian Federation Litigation | Unfavorable Regulatory Action                                    
Site Contingency [Line Items]                                    
Loss Contingency, Number Of Subsidiaries | subsidiary             2                      
Grenfell Tower Fire, Survivors And Estates Of Decedents, Represented By Birnberg Peirce Ltd | Damage from Fire, Explosion or Other Hazard                                    
Site Contingency [Line Items]                                    
Number of plaintiffs | claimant     118   4                 113        
Grenfell Tower Fire, Survivors And Estates Of Decedents, Represented By Howe & Co Solicitors | Damage from Fire, Explosion or Other Hazard                                    
Site Contingency [Line Items]                                    
Number of plaintiffs | claimant         2                          
Grenfell Tower Fire, Survivors And Estates Of Decedents, Represented By Russell-Cooke LLP | Damage from Fire, Explosion or Other Hazard                                    
Site Contingency [Line Items]                                    
Number of plaintiffs | claimant   1 34 3                   33        
Grenfell Tower Fire, Survivors And Estates Of Decedents | Damage from Fire, Explosion or Other Hazard                                    
Site Contingency [Line Items]                                    
Loss Contingency, Number of Defendants | defendant   21 23                              
Grenfell Tower Fire, Survivors And Estates Of Decedents, Represented By Deighton Pierce Glynn | Damage from Fire, Explosion or Other Hazard                                    
Site Contingency [Line Items]                                    
Number of plaintiffs | claimant     7                              
Grenfell Tower Fire, Survivors And Estates Of Decedents, Represented By SMQ Legal Services | Damage from Fire, Explosion or Other Hazard                                    
Site Contingency [Line Items]                                    
Number of plaintiffs | claimant     5                     6        
Grenfell Tower Fire, Survivors And Estates Of Decedents, Represented By Scott Moncrieff | Damage from Fire, Explosion or Other Hazard                                    
Site Contingency [Line Items]                                    
Number of plaintiffs | claimant     4                     3        
Grenfell Tower Fire, Survivors And Estates Of Decedents, Represented By Saunders Law | Damage from Fire, Explosion or Other Hazard                                    
Site Contingency [Line Items]                                    
Number of plaintiffs | claimant     27                     31        
Grenfell Tower Fire, Survivors And Estates Of Decedents, Represented By Imran Khan And Partners | Damage from Fire, Explosion or Other Hazard                                    
Site Contingency [Line Items]                                    
Number of plaintiffs | claimant     40                     47        
Grenfell Tower Fire, Survivors And Estates Of Decedents, Represented By Howe And Co | Damage from Fire, Explosion or Other Hazard                                    
Site Contingency [Line Items]                                    
Number of plaintiffs | claimant     58                     61        
Grenfell Tower Fire, Survivors And Estates Of Decedents, Represented By Hodge Jones And Allen Solicitor | Damage from Fire, Explosion or Other Hazard                                    
Site Contingency [Line Items]                                    
Number of plaintiffs | claimant   5 114                     4        
Grenfell Tower Fire, Survivors And Estates Of Decedents, Represented By Hickman And Rose | Damage from Fire, Explosion or Other Hazard                                    
Site Contingency [Line Items]                                    
Number of plaintiffs | claimant     19                     23        
Grenfell Tower Fire, Survivors And Estates Of Decedents, Represented By Duncan Lewis Solicitors | Damage from Fire, Explosion or Other Hazard                                    
Site Contingency [Line Items]                                    
Number of plaintiffs | claimant     5                     10        
Grenfell Tower Fire, Survivors And Estates Of Decedents, Represented By Bindmans LLP | Damage from Fire, Explosion or Other Hazard                                    
Site Contingency [Line Items]                                    
Number of plaintiffs | claimant 5   341                              
Grenfell Tower Fire, Survivors And Estates Of Decedents, Represented By Bhatt Murphy Ltd | Damage from Fire, Explosion or Other Hazard                                    
Site Contingency [Line Items]                                    
Number of plaintiffs | claimant     82                     76        
Grenfell Tower Fire, Survivors And Estates Of Decedents, Represented By Slater & Gordon | Damage from Fire, Explosion or Other Hazard                                    
Site Contingency [Line Items]                                    
Number of plaintiffs | claimant     24                     26        
Grenfell Tower Fire, Emergency Responders, Represented By Thompsons Solicitors | Damage from Fire, Explosion or Other Hazard                                    
Site Contingency [Line Items]                                    
Number of plaintiffs | firefighter           80               98        
Loss Contingency, Number Of Additional Plaintiffs | firefighter           7               10        
Grenfell Tower Fire, Emergency Responders, Represented By Penningtons Manches Cooper LLP | Damage from Fire, Explosion or Other Hazard                                    
Site Contingency [Line Items]                                    
Number of plaintiffs | police_officer         27                 36        
Grenfell Tower Fire, Emergency Responders, Represented By Pattinson And Brewer | Damage from Fire, Explosion or Other Hazard                                    
Site Contingency [Line Items]                                    
Number of plaintiffs | firefighter         2                          
Loss, Contingency, Number Of Plaintiffs Withdrawn | firefighter         1                          
Behrens v. Arconic                                    
Site Contingency [Line Items]                                    
Number of plaintiffs | plaintiff               247                    
Sullivan v. Arconic                                    
Site Contingency [Line Items]                                    
Number of former executives | executive                 3                  
Fusina, Italy                                    
Site Contingency [Line Items]                                    
Accrual for Environmental Loss Contingencies, Period Increase (Decrease)                           $ 1        
Environmental remediation, payments                           1        
Massena West, NY                                    
Site Contingency [Line Items]                                    
Environmental remediation                   38       38   $ 30    
Accrual for Environmental Loss Contingencies, Period Increase (Decrease)                   9       13        
Accrual for Environmental Loss Contingencies, Revision in Estimates                       $ 11            
Massena West, NY | Maintenance | Forecast                                    
Site Contingency [Line Items]                                    
Environmental remediation                                 $ 19  
Massena West, NY | Environmental Issue [Member]                                    
Site Contingency [Line Items]                                    
Environmental remediation, additions                   (9) $ (4)              
Accrual for Environmental Loss Contingencies, Revision in Estimates                     $ 11              
Massena West, NY | Environmental Issue [Member] | Forecast                                    
Site Contingency [Line Items]                                    
Environmental remediation                                 $ 17 $ 2
Massena West, NY | Environmental Issue [Member] | Scenario, Plan                                    
Site Contingency [Line Items]                                    
Accrual for Environmental Loss Contingencies, Revision in Estimates                   22                
Lafayette, Indiana                                    
Site Contingency [Line Items]                                    
Accrual for Environmental Loss Contingencies, Period Increase (Decrease)                           $ 5        
Accrual for Environmental Loss Contingencies, Years for Completion | yr                           2        
Second Largest Reserve                                    
Site Contingency [Line Items]                                    
Environmental remediation                   $ 7       $ 7