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Financial Risk Management - Summary of Foreign Currency Risk Arising From Financial Assets and Liabilities, Which Are Denominated In Currencies Other Than The US Dollar (Detail) - Currency risk [member] - USD ($)
$ in Millions
Jun. 30, 2023
Jun. 30, 2022
Disclosure of Detailed Information about Foreign Currency Risk Arising from Financial Assets and Liabilities which are Denominated in Currencies other than the US Dollar Explanatory [Line Items]    
Net Financial Assets Liabilities $ (3,629) $ (3,396)
AUD    
Disclosure of Detailed Information about Foreign Currency Risk Arising from Financial Assets and Liabilities which are Denominated in Currencies other than the US Dollar Explanatory [Line Items]    
Net Financial Assets Liabilities (4,168) (3,649)
CLP    
Disclosure of Detailed Information about Foreign Currency Risk Arising from Financial Assets and Liabilities which are Denominated in Currencies other than the US Dollar Explanatory [Line Items]    
Net Financial Assets Liabilities (74) (602)
GBP    
Disclosure of Detailed Information about Foreign Currency Risk Arising from Financial Assets and Liabilities which are Denominated in Currencies other than the US Dollar Explanatory [Line Items]    
Net Financial Assets Liabilities 353 388
EUR    
Disclosure of Detailed Information about Foreign Currency Risk Arising from Financial Assets and Liabilities which are Denominated in Currencies other than the US Dollar Explanatory [Line Items]    
Net Financial Assets Liabilities 217 280
Other    
Disclosure of Detailed Information about Foreign Currency Risk Arising from Financial Assets and Liabilities which are Denominated in Currencies other than the US Dollar Explanatory [Line Items]    
Net Financial Assets Liabilities $ 43 $ 187