v3.25.4
Taxation (Details) - USD ($)
$ in Millions
 6 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Jun. 30, 2025
Disclosure of geographical areas [line items]      
Average effective tax rate 25.40% 26.30%  
The tax rate before exceptional items 24.60% 24.90%  
Tax charge $ 683 $ 699  
Corporate tax receivables 186 235 $ 354
Current tax liabilities, current 261 191 138
Current Tax Provisions 202   $ 217
Current tax expense (income), related to Pillar Two income taxes 5    
Total exceptional items      
Disclosure of geographical areas [line items]      
Tax charge (11) (32)  
Restructuring programmes (1)      
Disclosure of geographical areas [line items]      
Tax charge (14)    
Discretionary increase in pension benefits in Ireland (2)      
Disclosure of geographical areas [line items]      
Tax charge (5)    
Sale of businesses and brands      
Disclosure of geographical areas [line items]      
Tax charge 7    
Great Britain      
Disclosure of geographical areas [line items]      
Tax charge 155 100  
Foreign      
Disclosure of geographical areas [line items]      
Tax charge $ 528 $ 599