v3.26.1
Intangible assets - Narrative (Details) - USD ($)
$ in Millions
 12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2024
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Period over which management approves strategic plan 3 years    
Period over which management has projected cash flows 5 years    
Deferred tax expense (income) recognised in profit or loss $ 409 $ 108  
Decrease in share price      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Sensitivity analysis for intangible asset 30.00%    
Decrease in cash flow      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Sensitivity analysis for intangible asset 10.00%    
Ketel One distribution right      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Other intangible assets $ 1,800 1,800 $ 1,800
Mey Icki | Brand and goodwill names      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Recoverable amount of asset or cash-generating unit 689    
Yenì Raki | Decrease in cash flow      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Impairment charge 35    
Don Papa | Brand names      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Recoverable amount of asset or cash-generating unit 103    
Ypióca | Brand names      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Recoverable amount of asset or cash-generating unit 38    
Various US brands | Brand names      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Recoverable amount of asset or cash-generating unit 46    
Greater China | Decrease in share price      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Impairment charge 112    
Brand and goodwill names | Brand and goodwill impairment | Türkiye(1)      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Impairment charge 786    
Brand and goodwill names | Brand and goodwill impairment | Mey Icki      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Deferred tax expense (income) recognised in profit or loss 187    
Net exceptional gain/(loss) 599    
Goodwill | Goodwill impairment | Mey Icki      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Impairment charge 466    
Brand names | Brand impairment | Yenì Raki      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Impairment charge 280    
Brand names | Brand impairment | Don Papa      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Impairment charge 287    
Deferred tax expense (income) recognised in profit or loss 71    
Net exceptional gain/(loss) 216    
Brand names | Brand impairment | Aviation American gin      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Impairment charge 44    
Deferred tax expense (income) recognised in profit or loss 10    
Net exceptional gain/(loss) 34    
Brand names | Brand impairment | Various US brands      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Impairment charge 138    
Deferred tax expense (income) recognised in profit or loss 36    
Net exceptional gain/(loss) 102    
Brand names | Brand impairment | Bells Whisky      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Impairment charge   51  
Deferred tax expense (income) recognised in profit or loss   13  
Brand names | Brand and tangible asset impairment | Ypióca      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Impairment charge $ 41    
Brand, tangible and other asset impairment | Brand, tangible and other asset impairment | Aviation American gin      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Impairment charge   231  
Deferred tax expense (income) recognised in profit or loss   55  
Brand, tangible and other asset impairment | Brand, tangible and other asset impairment | Various US brands      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Impairment charge   170  
Deferred tax expense (income) recognised in profit or loss   $ 40  
Total for all business combinations      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Extension of period over which management has projected cash flows 10 years    
Maximum | Computer software      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Useful life measured as period of time, intangible assets other than goodwill 8 years