v3.26.1
Intangible assets - Sensitivity to change in key assumptions (Details)
$ in Millions
 12 Months Ended
Jun. 30, 2026
USD ($)
Greater China  
Disclosure of intangible assets sensitivity to change in key assumptions [line items]  
Carrying amount of asset or cash-generating unit $ 1,831
Yenì Raki  
Disclosure of intangible assets sensitivity to change in key assumptions [line items]  
Carrying amount of asset or cash-generating unit 353
Headroom | Greater China  
Disclosure of intangible assets sensitivity to change in key assumptions [line items]  
Headroom 552
Headroom | Yenì Raki  
Disclosure of intangible assets sensitivity to change in key assumptions [line items]  
Headroom $ 0
Decrease in share price  
Disclosure of intangible assets sensitivity to change in key assumptions [line items]  
Sensitivity analysis for intangible asset 30.00%
Decrease in share price | Greater China  
Disclosure of intangible assets sensitivity to change in key assumptions [line items]  
Potential impairment loss $ (112)
Increase in discount rate  
Disclosure of intangible assets sensitivity to change in key assumptions [line items]  
Sensitivity analysis for intangible asset 200.00%
Increase in discount rate | Yenì Raki  
Disclosure of intangible assets sensitivity to change in key assumptions [line items]  
Potential impairment loss $ (65)
Decrease in terminal growth rate  
Disclosure of intangible assets sensitivity to change in key assumptions [line items]  
Sensitivity analysis for intangible asset 100.00%
Decrease in terminal growth rate | Yenì Raki  
Disclosure of intangible assets sensitivity to change in key assumptions [line items]  
Potential impairment loss $ (30)
Decrease in cash flow  
Disclosure of intangible assets sensitivity to change in key assumptions [line items]  
Sensitivity analysis for intangible asset 10.00%
Decrease in cash flow | Yenì Raki  
Disclosure of intangible assets sensitivity to change in key assumptions [line items]  
Potential impairment loss $ (35)