v3.23.1
Integration and Restructuring Plans (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Allergan integration plan    
Restructuring charges    
Incurred total cumulative integration charges $ 2,300  
Charges associated with integration or restructuring plans 58 $ 110
Restructuring reserve rollforward    
Accrued balance beginning of the period 107  
Restructuring charges 58  
Payments and other adjustments (69)  
Accrued balance end of the period 96  
Allergan integration plan | Cost of products sold    
Restructuring charges    
Charges associated with integration or restructuring plans 14 31
Allergan integration plan | Research and development    
Restructuring charges    
Charges associated with integration or restructuring plans 0 9
Allergan integration plan | Selling, general and administrative    
Restructuring charges    
Charges associated with integration or restructuring plans 44 70
Other restructuring    
Restructuring charges    
Charges associated with integration or restructuring plans 27 $ 57
Restructuring reserve rollforward    
Accrued balance beginning of the period 176  
Restructuring charges 17  
Payments and other adjustments (24)  
Accrued balance end of the period $ 169