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Commitments and Contingent Liabilities - Schedule of Environmental Remediation Liabilities (Details) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Environmental Remediation [Line Items]    
Accrued environmental remediation $ 571 $ 590
Current Liabilities [Member]    
Environmental Remediation [Line Items]    
Environmental Loss Contingency, Statement of Financial Position [Extensible Enumeration] Accrued Environmental Loss Contingencies, Current Accrued Environmental Loss Contingencies, Current
Chambers Works, Deepwater, New Jersey [Member]    
Environmental Remediation [Line Items]    
Accrued environmental remediation $ 31 $ 30
Dordrecht Works Netherlands [Member]    
Environmental Remediation [Line Items]    
Accrued environmental remediation [1] 28 4
Fayetteville Works, Fayetteville, North Carolina [Member]    
Environmental Remediation [Line Items]    
Accrued environmental remediation [2] 351 383
Pompton Lakes, New Jersey [Member]    
Environmental Remediation [Line Items]    
Accrued environmental remediation 41 41
USS Lead, East Chicago, Indiana [Member]    
Environmental Remediation [Line Items]    
Accrued environmental remediation 0 12 [3]
Washington Works, West Virginia [Member]    
Environmental Remediation [Line Items]    
Accrued environmental remediation 25 22
All other sites [Member]    
Environmental Remediation [Line Items]    
Accrued environmental remediation $ 95 $ 98
[1] As of December 31, 2024, environmental remediation at Dordrecht Works primarily relates to the remediation plan to be implemented as part of the letter of intent described further within this “Note 22 – Commitments and Contingent Liabilities”. An initial estimate of this liability was included in Accrued Litigation at December 31, 2023 and reclassified to Accrued Environmental Remediation at December 31, 2024
[2] For more information on this matter refer to “Fayetteville Works, Fayetteville, North Carolina” within this “Note 22 – Commitments and Contingent Liabilities”
[3] USS Lead, East Chicago, Indiana: Although USS Lead, East Chicago, Indiana has a $0 balance as of December 31, 2024, the Company continues to include this remediation site in the table above due to the accrued environmental remediation liabilities associated with it as of December 31, 2023 for comparable purposes