v3.26.1
Segments of business and geographic areas - Narrative (Details)
$ in Millions
3 Months Ended
Mar. 29, 2026
USD ($)
segment
Mar. 30, 2025
USD ($)
Oct. 14, 2025
Segment Reporting Information [Line Items]      
Number of operating segments | segment 2    
Number of reportable segments | segment 2    
Sales to customers (Note 9) | $ $ 24,062 $ 21,893  
Innovative Medicine      
Segment Reporting Information [Line Items]      
Sales to customers (Note 9) | $ $ 15,426 $ 13,873  
Innovative Medicine | Change in Accounting Method Accounted for as Change in Estimate      
Segment Reporting Information [Line Items]      
Adjustments To Revenue Recognized, Percent 4.70% 4.60%  
Minimum | Orthopaedics Business      
Segment Reporting Information [Line Items]      
Disposal group, estimated term to complete     18 months
Maximum | Orthopaedics Business      
Segment Reporting Information [Line Items]      
Disposal group, estimated term to complete     24 months