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Provisions for Dividends and Other Liabilities - Summary of Provisions for Dividends and Other Liabilities (Detail) - USD ($)
$ in Millions
 12 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2020
Charge/(credit) for the year:      
Dividends paid $ (17,851) $ (7,901) $ (6,876)
Current 3,965 3,696  
Non-current 10,478 13,799  
Provision for dividends and other liabilities [member]      
Disclosure of other provisions [line items]      
At the beginning of the financial year 581 1,240  
Dividends determined 17,720 7,894  
Charge/(credit) for the year:      
Underlying 493 260  
Discounting 1 2  
Exchange variations 122 20  
Released during the year (48) (43)  
Utilisation (96) (267)  
Dividends paid (17,851) (7,901)  
Divestment and demerger of subsidiaries and operations (146)    
Transfers and other movements (102) (624)  
At the end of the financial year 674 581 $ 1,240
Current 356 293  
Non-current $ 318 $ 288