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Commitments and Contingent Liabilities (Tables)
 12 Months Ended
Dec. 31, 2024
Commitments and Contingencies Disclosure [Abstract]  
Schedule of Loss Contingencies by Contingency
Environmental Reserves
($ in millions)20242023
New Jersey Chrome$58 $53 
Glass and chemical51 54 
Other113 120 
Total environmental reserves$222 $227 
Current Portion$39 $52 
Environmental Costs The pretax charges and cash outlays related to such environmental remediation in 2024, 2023 and 2022, were as follows:
($ in millions)202420232022
New Jersey Chrome$16 $7 $— 
Glass and chemical5 5 3 
Other9 23 10 
Total pretax environmental charges$30 $35 $13 
Cash outlays for environmental spending$28 $31 $73