v3.26.1
Other Equity - Summary of Financial Information Relating to Subsidiaries with Non-controlling Interests (Detail) - USD ($)
$ in Millions
 12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2024
Disclosure of significant subsidiaries [line items]      
Current assets $ 31,033 $ 22,830  
Non-current assets 90,354 85,960 $ 78,024
Current liabilities (16,465) (15,639)  
Non-current liabilities (48,601) (40,933)  
Net assets 56,321 52,218  
Net assets attributable to NCI 5,398 4,553  
Revenue 58,760 51,262 55,658
Profit after taxation 13,026 11,143 9,601
Other comprehensive income (71) (14) 9
Total comprehensive income 12,955 11,129 9,610
Profit after taxation attributable to NCI 3,193 2,124 1,704
Other comprehensive income attributable to NCI (3) (5)  
Net operating cash flow 21,778 18,692 20,665
Net investing cash flow (12,011) (13,350) (8,762)
Net financing cash flow (3,280) (5,971) (11,669)
Dividends paid to NCI $ 2,355 1,873  
Distribution to NCI   $ 2 $ 13
Minera Escondida Limitada [member]      
Disclosure of significant subsidiaries [line items]      
Group share (per cent) 57.50% 57.50%  
Current assets $ 4,682 $ 3,630  
Non-current assets 14,850 13,939  
Current liabilities (2,949) (2,074)  
Non-current liabilities (5,060) (5,917)  
Net assets 11,523 9,578  
Net assets attributable to NCI 4,897 4,071  
Revenue 17,054 13,177  
Profit after taxation 6,732 4,237  
Other comprehensive income (7) (9)  
Total comprehensive income 6,725 4,228  
Profit after taxation attributable to NCI 2,861 1,801  
Other comprehensive income attributable to NCI (3) (4)  
Net operating cash flow 7,551 6,263  
Net investing cash flow (2,108) (2,390)  
Net financing cash flow (4,987) (3,413)  
Dividends paid to NCI 2,032 1,488  
Other individually immaterial subsidiaries [member]      
Disclosure of significant subsidiaries [line items]      
Net assets attributable to NCI 501 482  
Profit after taxation attributable to NCI 332 323  
Other comprehensive income attributable to NCI 0 (1)  
Dividends paid to NCI $ 323 $ 385