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Commitments and Contingent Liabilities (Tables)
 6 Months Ended
Jun. 30, 2022
Commitments and Contingencies Disclosure [Abstract]  
Environmental Liabilities [Table Text Block]
Environmental Reserves
($ in millions)June 30, 2022December 31, 2021
New Jersey Chrome$63 $89 
Glass and chemical76 83 
Other108 110 
Total$247 $282 
Current portion$78 $97 
Environmental Costs [Table Text Block]
Pretax charges against income for environmental remediation costs are included in Other income, net in the accompanying condensed consolidated statement of income. The pretax charges and cash outlays related to such environmental remediation for the three and six months ended June 30, 2022 and 2021 were as follows:
Three Months Ended
June 30		Six Months Ended
June 30
($ in millions)2022202120222021
Environmental remediation pretax charges$2 $12 $8 $31 
Cash outlays for environmental remediation activities$24 $8 $47 $17