v3.25.2
Taxation - Expected expiration of tax losses (Details) - USD ($)
$ in Millions
Dec. 31, 2023
Jun. 30, 2023
Dec. 31, 2022
Jun. 30, 2022
Disclosure Of Income Taxes [Line Items]        
Unused tax losses for which no deferred tax asset recognised $ 74,680   $ 76,323  
Australia        
Disclosure Of Income Taxes [Line Items]        
Unused tax losses for which no deferred tax asset recognised   $ 46,220   $ 43,832
Less than one year        
Disclosure Of Income Taxes [Line Items]        
Unused tax losses for which no deferred tax asset recognised 1,496   1,034  
Between 1 and 5 years        
Disclosure Of Income Taxes [Line Items]        
Unused tax losses for which no deferred tax asset recognised 1,475   3,257  
5 years and later        
Disclosure Of Income Taxes [Line Items]        
Unused tax losses for which no deferred tax asset recognised $ 71,709   $ 72,032