v3.26.1
Intangible Assets - Summary of Intangible Assets (Detail) - USD ($)
$ in Millions
 12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2024
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
At the beginning of the financial year $ 1,924 $ 1,718  
Additions 284 160  
Amortisation for the year (141) (111)  
Impairments for the year (2,406) (171)  
Disposals (17) (17)  
Transfers and other movements 70 176  
At the end of the financial year 2,113 1,924 $ 1,718
Goodwill and other intangible assets [Member]      
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
Impairments for the year (7) [1] (2) [1] (57)
Cost [member]      
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
At the beginning of the financial year 3,518    
At the end of the financial year 3,850 3,518  
Accumulated depreciation, amortisation and impairment [member]      
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
At the beginning of the financial year (1,594)    
At the end of the financial year (1,737) (1,594)  
Goodwill      
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
At the beginning of the financial year 1,341 1,341  
Additions 0 0  
Amortisation for the year 0 0  
Impairments for the year [1] 0 0  
Disposals 0 0  
Transfers and other movements 0 0  
At the end of the financial year 1,341 1,341 1,341
Goodwill | Cost [member]      
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
At the beginning of the financial year 1,391    
At the end of the financial year 1,391 1,391  
Goodwill | Accumulated depreciation, amortisation and impairment [member]      
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
At the beginning of the financial year (50)    
At the end of the financial year (50) (50)  
Other Intangibles      
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
At the beginning of the financial year 583 377  
Additions 284 160  
Amortisation for the year (141) (111)  
Impairments for the year [1] (7) (2)  
Disposals (17) (17)  
Transfers and other movements 70 176  
At the end of the financial year 772 583 $ 377
Other Intangibles | Cost [member]      
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
At the beginning of the financial year 2,127    
At the end of the financial year 2,459 2,127  
Other Intangibles | Accumulated depreciation, amortisation and impairment [member]      
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
At the beginning of the financial year (1,544)    
At the end of the financial year $ (1,687) $ (1,544)  
[1] Refer to note 13 'Impairment of non-current assets' for information on impairments.