v3.25.2
Impairment of Non-current Assets - Summary of Goodwill Allocated to Cash Generating Units (Detail) - USD ($)
$ in Millions
Jun. 30, 2025
Jun. 30, 2024
Disclosure of detailed information about goodwill allocated to cash generating unit explanatory [line items]    
Goodwill $ 1,341 $ 1,341
Copper SA [Member]    
Disclosure of detailed information about goodwill allocated to cash generating unit explanatory [line items]    
Goodwill 1,154 1,154
Other [member]    
Disclosure of detailed information about goodwill allocated to cash generating unit explanatory [line items]    
Goodwill $ 187 $ 187