v3.26.1
Financial Instruments (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2026
Mar. 31, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Financial instruments fair value gains            
Net gains/(losses) on equity investments measured at fair value through Other comprehensive income $ 280   $ (67) $ 465 $ (125)  
Payment of contingent consideration from business combinations       290 629  
Diabetes alliance            
Financial instruments fair value gains            
Payment of contingent consideration from business combinations   $ 257        
Interest-Bearing Loans and Borrowings | Not measured at fair value in statement of financial position but for which fair value is disclosed            
Financial instruments fair value gains            
Carrying value, financial liabilities 31,333     31,333    
Financial liabilities, at fair value 30,630     30,630    
Financial assets at amortised cost            
Financial instruments fair value gains            
Cash collateral pledged to counterparties 70     70    
Other Investments | Financial assets measured at fair value            
Financial instruments fair value gains            
Financial assets 2,624     2,624    
Money market funds | Financial assets measured at fair value            
Financial instruments fair value gains            
Financial assets 3,427     3,427    
Derivatives | Financial assets measured at fair value            
Financial instruments fair value gains            
Financial assets 359     359    
Level 3            
Financial instruments fair value gains            
Net gains/(losses) on equity investments measured at fair value through Other comprehensive income       (9) $ 35  
Level 3 | Equity investments            
Financial instruments fair value gains            
Financial assets 442     442   $ 458
Level 3 | Equity investments | Financial assets measured at fair value            
Financial instruments fair value gains            
Financial assets $ 442     $ 442