v3.26.1
Subsequent Events - Additional Information (Detail)
$ in Billions
Aug. 18, 2026
USD ($)
Disclosure of non-adjusting events after reporting period [line items]  
Voting right stake 49.00%
BHP Share of Western Australia Iron Ore's [member]  
Disclosure of non-adjusting events after reporting period [line items]  
Business consider funding provide $ 2