v3.25.2
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, 2025
Dec. 31, 2024
Disclosure of reconciliation of changes in intangible assets and goodwill [abstract]    
Intangible assets and goodwill at beginning of period $ 2,083  
Intangible assets and goodwill at end of period 2,107 $ 2,083
Gross carrying value    
Disclosure of reconciliation of changes in intangible assets and goodwill [abstract]    
Intangible assets and goodwill at beginning of period 2,216 126
Additions during the period 32 2,019
Effect of exchange rate adjustment   71
Intangible assets and goodwill at end of period 2,248 2,216
Accumulated amortisation and impairment    
Disclosure of reconciliation of changes in intangible assets and goodwill [abstract]    
Intangible assets and goodwill at beginning of period (133) (112)
Amortization for the period 7 10
Impairment losses for the period 1 11
Intangible assets and goodwill at end of period (141) (133)
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 0
Additions during the period 0 341
Effect of exchange rate adjustment   14
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 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 23  
Intangible assets and goodwill at end of period 53 23
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 149 126
Additions during the period 32 23
Effect of exchange rate adjustment   0
Intangible assets and goodwill at end of period 181 149
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 (126) (112)
Amortization for the period 1 3
Impairment losses for the period 1 11
Intangible assets and goodwill at end of period (128) (126)
Technology Platform    
Disclosure of reconciliation of changes in intangible assets and goodwill [abstract]    
Intangible assets and goodwill at beginning of period 173  
Intangible assets and goodwill at end of period 167 173
Technology Platform | Gross carrying value    
Disclosure of reconciliation of changes in intangible assets and goodwill [abstract]    
Intangible assets and goodwill at beginning of period 180 0
Additions during the period 0 174
Effect of exchange rate adjustment   6
Intangible assets and goodwill at end of period 180 180
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 (7) 0
Amortization for the period 6 7
Impairment losses for the period 0 0
Intangible assets and goodwill at end of period (13) (7)
Acquired IPR&D    
Disclosure of reconciliation of changes in intangible assets and goodwill [abstract]    
Intangible assets and goodwill at beginning of period 1,532  
Intangible assets and goodwill at end of period 1,532 1,532
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 1,532 0
Additions during the period 0 1,481
Effect of exchange rate adjustment   51
Intangible assets and goodwill at end of period 1,532 1,532
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 0
Intangible assets and goodwill at end of period $ 0 $ 0