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Commitments and Contingent Liabilities (Tables)
 6 Months Ended
Jun. 30, 2024
Commitments and Contingencies Disclosure [Abstract]  
Environmental Liabilities [Table Text Block]
Environmental Reserves
($ in millions)June 30, 2024December 31, 2023
New Jersey Chrome$63 $53 
Glass and chemical56 54 
Other117 120 
Total environmental reserves$236 $227 
Current portion$47 $52 
Environmental Costs [Table Text Block]
Pretax charges against income for environmental remediation costs are included in Other charges/(income), net in the accompanying condensed consolidated statement of income. The pretax charges and cash outlays related to such environmental remediation for the three and six months ended June 30, 2024 and 2023 were as follows:
Three Months Ended
June 30		Six Months Ended
June 30
($ in millions)2024202320242023
Environmental remediation pretax charges$21 $10 $24 $13 
Cash outlays for environmental remediation activities$5 $7 $13 $16