v3.26.1
Dividends - Additional Information (Detail) - USD ($)
$ / shares in Units, $ in Millions
12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2024
Disclosure of dividends [line items]      
Tax rate 30.00%    
Proceeds from cash management related instruments $ 96 $ 195 $ 361
Major ordinary share transactions [member]      
Disclosure of dividends [line items]      
Dividend per share, after period-end $ 0.99 $ 0.6 $ 0.74
Dividend amount, after period-end $ 5,029 $ 3,045 $ 3,752
Proceeds from cash management related instruments $ 1    
BHP Group Limited [member]      
Disclosure of dividends [line items]      
Number of ordinary shares represented by each American Depositary Share 2    
Tax rate 30.00%