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BUSINESS OPTIMIZATION CHARGES - Summary of Activity in Reserves Related to Restructuring Initiatives (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2023
Sep. 30, 2022
Restructuring Reserve [Roll Forward]        
Charges $ 64 $ 57 $ 461 $ 150
Severance and Other Employee Related Costs        
Restructuring Reserve [Roll Forward]        
Reserve, beginning balance     107  
Charges     189  
Payments     (108)  
Reserve adjustments     (12)  
Currency translation     (5)  
Reserve, ending balance $ 171   $ 171