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Other Equity - Summary of Reserves (Detail) - USD ($)
$ in Millions
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2020
Disclosure of analysis of other comprehensive income by item [abstract]      
Share premium account $ 0 $ 518 $ 518
Capital redemption reserve 0 177 177
Common control reserves (1,603)    
Employee share awards reserve 174 268 246
Cash flow hedge reserve 41 100 50
Cost of hedging reserve (19) (54) (23)
Foreign currency translation reserve (14) 43 39
Equity investments reserve (8) 15 16
Non-controlling interest contribution reserve 1,441 1,283 1,283
Total reserves $ 12 $ 2,350 $ 2,306