v3.26.1
Other Intangible Assets and Goodwill - Summary of the Carrying Amounts of Intangible Assets and Goodwill (Details) - USD ($)
$ in Millions
 6 Months Ended 12 Months Ended
Jun. 30, 2026
Dec. 31, 2025
Disclosure of reconciliation of changes in intangible assets and goodwill [abstract]    
Intangible assets and goodwill at beginning of period $ 9,478  
Intangible assets and goodwill at end of period 9,227 $ 9,478
Gross carrying value    
Disclosure of reconciliation of changes in intangible assets and goodwill [abstract]    
Intangible assets and goodwill at beginning of period 9,647 2,216
Additions during the period 1 7,411
Effect of exchange rate adjustment (229) 20
Intangible assets and goodwill at end of period 9,419 9,647
Accumulated amortisation and impairment    
Disclosure of reconciliation of changes in intangible assets and goodwill [abstract]    
Intangible assets and goodwill at beginning of period (169) (133)
Amortization for the period 25 16
Impairment losses for the period   18
Effect of exchange rate adjustment 2 (2)
Intangible assets and goodwill at end of period (192) (169)
Goodwill    
Disclosure of reconciliation of changes in intangible assets and goodwill [abstract]    
Intangible assets and goodwill at beginning of period 355  
Intangible assets and goodwill at end of period 355 355
Goodwill | Gross carrying value    
Disclosure of reconciliation of changes in intangible assets and goodwill [abstract]    
Intangible assets and goodwill at beginning of period 355 355
Additions during the period 0 0
Effect of exchange rate adjustment 0 0
Intangible assets and goodwill at end of period 355 355
Goodwill | Accumulated amortisation and impairment    
Disclosure of reconciliation of changes in intangible assets and goodwill [abstract]    
Intangible assets and goodwill at beginning of period 0 0
Impairment losses for the period   0
Effect of exchange rate adjustment 0 0
Intangible assets and goodwill at end of period 0 0
Licenses and Patents    
Disclosure of reconciliation of changes in intangible assets and goodwill [abstract]    
Intangible assets and goodwill at beginning of period 120  
Intangible assets and goodwill at end of period 114 120
Licenses and Patents | Gross carrying value    
Disclosure of reconciliation of changes in intangible assets and goodwill [abstract]    
Intangible assets and goodwill at beginning of period 268 149
Additions during the period 1 115
Effect of exchange rate adjustment (4) 4
Intangible assets and goodwill at end of period 265 268
Licenses and Patents | Accumulated amortisation and impairment    
Disclosure of reconciliation of changes in intangible assets and goodwill [abstract]    
Intangible assets and goodwill at beginning of period (148) (126)
Amortization for the period 5 2
Impairment losses for the period   18
Effect of exchange rate adjustment 2 (2)
Intangible assets and goodwill at end of period (151) (148)
Technology Platform    
Disclosure of reconciliation of changes in intangible assets and goodwill [abstract]    
Intangible assets and goodwill at beginning of period 529  
Intangible assets and goodwill at end of period 498 529
Technology Platform | Gross carrying value    
Disclosure of reconciliation of changes in intangible assets and goodwill [abstract]    
Intangible assets and goodwill at beginning of period 550 180
Additions during the period 0 369
Effect of exchange rate adjustment (11) 1
Intangible assets and goodwill at end of period 539 550
Technology Platform | Accumulated amortisation and impairment    
Disclosure of reconciliation of changes in intangible assets and goodwill [abstract]    
Intangible assets and goodwill at beginning of period (21) (7)
Amortization for the period 20 14
Impairment losses for the period   0
Effect of exchange rate adjustment 0 0
Intangible assets and goodwill at end of period (41) (21)
Acquired IPR&D    
Disclosure of reconciliation of changes in intangible assets and goodwill [abstract]    
Intangible assets and goodwill at beginning of period 8,474  
Intangible assets and goodwill at end of period 8,260 8,474
Acquired IPR&D | Gross carrying value    
Disclosure of reconciliation of changes in intangible assets and goodwill [abstract]    
Intangible assets and goodwill at beginning of period 8,474 1,532
Additions during the period 0 6,927
Effect of exchange rate adjustment (214) 15
Intangible assets and goodwill at end of period 8,260 8,474
Acquired IPR&D | Accumulated amortisation and impairment    
Disclosure of reconciliation of changes in intangible assets and goodwill [abstract]    
Intangible assets and goodwill at beginning of period 0 0
Amortization for the period 0 0
Impairment losses for the period   0
Effect of exchange rate adjustment 0 0
Intangible assets and goodwill at end of period $ 0 $ 0