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Impairment of Non-current Assets - Summary of Impairment of Non-current Assets Excluding Goodwill (Detail) - USD ($)
$ in Millions
 12 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2021
Disclosure of detailed information about impairment of non-current assets excluding goodwill [line items]      
Total impairment of non-current assets $ 75 $ 515 $ 2,507
Non-current Assets Excluding Goodwill [Member]      
Disclosure of detailed information about impairment of non-current assets excluding goodwill [line items]      
Total impairment of non-current assets $ 0    
Cerro Colorado [Member]      
Disclosure of detailed information about impairment of non-current assets excluding goodwill [line items]      
Total impairment of non-current assets   $ 455