v3.23.3
Integration and Restructuring Plans (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2023
Sep. 30, 2022
Allergan integration plan        
Restructuring charges        
Incurred total cumulative integration charges $ 2,500   $ 2,500  
Charges associated with integration or restructuring plans 60 $ 116 202 $ 329
Restructuring reserve rollforward        
Accrued balance beginning of the period     107  
Restructuring charges     192  
Payments and other adjustments     (258)  
Accrued balance end of the period 41   41  
Allergan integration plan | Cost of products sold        
Restructuring charges        
Charges associated with integration or restructuring plans 20 24 66 81
Allergan integration plan | Research and development        
Restructuring charges        
Charges associated with integration or restructuring plans 1 4 2 14
Allergan integration plan | Selling, general and administrative        
Restructuring charges        
Charges associated with integration or restructuring plans 39 88 134 234
Other restructuring        
Restructuring charges        
Charges associated with integration or restructuring plans 10 $ 50 55 $ 143
Restructuring reserve rollforward        
Accrued balance beginning of the period     176  
Restructuring charges     31  
Payments and other adjustments     (64)  
Accrued balance end of the period $ 143   $ 143