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Income Tax Expense - Summary of Income Tax Recognised in Other Comprehensive Income (Detail) - USD ($)
$ in Millions
 12 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2020
Cash flow hedges:      
Gains/(losses) taken to equity $ 274 $ (259) $ 94
(Gains)/losses transferred to the income statement (264) 252 (89)
Others   (1)  
Income tax credit/(charge) relating to items that may be reclassified subsequently to the income statement 10 (8) 5
Items that will not be reclassified to the income statement:      
Remeasurement gains/(losses) on pension and medical schemes (9) (21) 25
Others   1 1
Income tax (charge)/credit relating to items that will not be reclassified to the income statement (9) (20) 26
Total income tax credit/(charge) relating to components of other comprehensive income $ 1 $ (28) $ 31