v3.26.1
Segment Reporting - Summary of Geographical Information (Detail) - USD ($)
$ in Millions
 12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2024
Disclosure of geographical areas [line items]      
Revenue $ 58,760 $ 51,262 $ 55,658
Non-current assets 90,354 85,960 78,024
Unallocated assets [member]      
Disclosure of geographical areas [line items]      
Non-current assets 1,062 1,200 [1] 1,296 [1]
Australia [member]      
Disclosure of geographical areas [line items]      
Revenue 2,855 2,545 2,393
Non-current assets 52,854 50,619 48,991
Europe [member]      
Disclosure of geographical areas [line items]      
Revenue 2,183 1,121 1,702
China [member]      
Disclosure of geographical areas [line items]      
Revenue 34,206 32,083 34,752
Japan [member]      
Disclosure of geographical areas [line items]      
Revenue 5,810 4,177 4,557
INDIA      
Disclosure of geographical areas [line items]      
Revenue 3,660 2,661 3,371
South Korea [member]      
Disclosure of geographical areas [line items]      
Revenue 3,218 2,664 3,069
Rest of Asia [member]      
Disclosure of geographical areas [line items]      
Revenue 3,632 3,331 3,749
North America [member]      
Disclosure of geographical areas [line items]      
Revenue 2,707 2,251 1,601
Non-current assets 9,498 9,459 6,979
South America [member]      
Disclosure of geographical areas [line items]      
Revenue 489 429 464
Non-current assets 25,848 23,940 19,927
Rest of world [member]      
Disclosure of geographical areas [line items]      
Non-current assets $ 1,092 $ 742 $ 831
[1] Unallocated assets comprise non-current tax assets, deferred tax assets and other financial assets.