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Business Restructuring (Tables)
 12 Months Ended
Dec. 31, 2024
Restructuring and Related Activities [Abstract]  
Activity Related to Restructuring Reserves
The following table summarizes restructuring reserve activity for the years ended December 31, 2024 and 2023:
Total Reserve
($ in millions)20242023
January 1$110 $165 
Approved restructuring actions239 33 
Release of prior reserves and other adjustments(a)
(6)(35)
Cash payments(52)(56)
Foreign currency impact(15)3 
December 31$276 $110 
(a)Certain releases were recorded to reflect the current estimate of costs to complete planned business restructuring actions.