v3.25.4
Restructuring Plans (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Allergan integration plan      
Restructuring charges      
Restructuring and Related Cost, Cost Incurred to Date     $ 2,500
Allergan integration plan | Employee Severance      
Restructuring charges      
Charges associated with integration or restructuring plans     288
Allergan integration plan | Employee Severance | Cost of products sold      
Restructuring charges      
Charges associated with integration or restructuring plans     89
Allergan integration plan | Employee Severance | Research and development      
Restructuring charges      
Charges associated with integration or restructuring plans     7
Allergan integration plan | Employee Severance | Selling, general and administrative      
Restructuring charges      
Charges associated with integration or restructuring plans     192
Other restructuring      
Restructuring reserve rollforward      
Accrued balance beginning of the period $ 236 $ 196 176
Integration and restructuring charges 166 168 107
Payments and other adjustments (88) (128) (87)
Accrued balance end of the period 314 236 196
Other restructuring | Employee Severance      
Restructuring charges      
Charges associated with integration or restructuring plans $ 282 $ 189 $ 132