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Business Restructuring (Tables)
3 Months Ended
Mar. 31, 2022
Restructuring and Related Activities [Abstract]  
Restructuring and Related Costs
The following table summarizes restructuring reserve activity for the three months ended March 31, 2022 and 2021:
Total Reserve
($ in millions)20222021
January 1$231 $293 
Cash payments(32)(26)
Foreign currency impact(5)(11)
March 31$194 $256