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Commitments and Contingent Liabilities - Schedule of Environmental Remediation Liabilities (Details) - USD ($)
$ in Millions
Mar. 31, 2024
Dec. 31, 2023
Environmental Remediation [Line Items]    
Accrued environmental remediation $ 581 $ 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
Non Current Liabilities [Member]    
Environmental Remediation [Line Items]    
Environmental Loss Contingency, Statement of Financial Position [Extensible Enumeration] Accrued Environmental Loss Contingencies Noncurrent Accrued Environmental Loss Contingencies Noncurrent
Chambers Works, Deepwater, New Jersey [Member]    
Environmental Remediation [Line Items]    
Accrued environmental remediation $ 30 $ 30
Fayetteville Works, Fayetteville, North Carolina [Member]    
Environmental Remediation [Line Items]    
Accrued environmental remediation [1] 378 383
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 10 12
Washington Works, West Virginia [Member]    
Environmental Remediation [Line Items]    
Accrued environmental remediation 22 22
All other sites [Member]    
Environmental Remediation [Line Items]    
Accrued environmental remediation $ 100 $ 102
[1] For more information on this matter refer to “Fayetteville Works, Fayetteville, North Carolina” within this “Note 16 – Commitments and Contingent Liabilities”.