v3.26.1
Interests in Joint Operations - Summary of Significant Interests in Joint Operations (Detail)
12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Mt Goldsworthy [member]    
Disclosure of significant joint operations [line items]    
Country of operation [1] Australia  
Principal activity [1] Iron ore mining  
Group's interest [1] 85.00% 85.00%
Mt Newman [member]    
Disclosure of significant joint operations [line items]    
Country of operation [1] Australia  
Principal activity [1] Iron ore mining  
Group's interest [1] 85.00% 85.00%
Yandi [member]    
Disclosure of significant joint operations [line items]    
Country of operation [1] Australia  
Principal activity [1] Iron ore mining  
Group's interest [1] 85.00% 85.00%
Central Queensland Coal Associates [member]    
Disclosure of significant joint operations [line items]    
Country of operation Australia  
Principal activity Coal mining  
Group's interest 50.00% 50.00%
[1] These contractual arrangements are controlled by the Group and do not meet the definition of joint operations. However, as they are formed by contractual arrangement and are not entities, the Group recognises its share of assets, liabilities, revenue and expenses arising from these arrangements.