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Commitments and Contingent Liabilities (Tables)
 3 Months Ended
Mar. 31, 2022
Commitments and Contingencies Disclosure [Abstract]  
Environmental Liabilities [Table Text Block]
Environmental Reserves
($ in millions)March 31, 2022December 31, 2021
New Jersey Chrome$71 $89 
Glass and chemical81 83 
Other110 110 
Total$262 $282 
Current portion$85 $97 
Environmental Costs [Table Text Block]
Pretax charges against income for environmental remediation costs are included in Other charges in the accompanying condensed consolidated statement of income. The pretax charges and cash outlays related to such environmental remediation for the three months ended March 31, 2022 and 2021 were as follows:
Three Months Ended
March 31
($ in millions)20222021
Environmental remediation pretax charges$6 $19 
Cash outlays for environmental remediation activities$23 $9