v3.26.1
Share-based Compensation - Fair Value Assumptions Used for Shares Options Granted (Details) - $ / shares
 12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2024
Share options      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Weighted average grant date fair value of share options granted (in dollars per share) $ 5.06 $ 9.37 $ 7.25
Risk free interest rate (%) 3.80% 3.60% 4.60%
Expected share price volatility (%) 23.90% 23.30% 21.80%
Expected dividend yield (%) 6.20% 5.00% 5.20%
Expected life (in years) 6 years 6 months 5 years 8 months 12 days 6 years 7 months 6 days
Restricted share units      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Weighted average grant date fair value of other than options granted (in dollars per share) $ 41.49 $ 52.98 $ 47.21
Performance rights/shares      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Weighted average grant date fair value of other than options granted (in dollars per share) $ 33.69 $ 41.60 $ 31.85
Risk free interest rate (%) 3.50% 3.50% 4.80%
Expected share price volatility (%) 23.30% 23.90% 23.40%
Expected dividend yield (%) 6.20% 4.50% 5.20%
Share rights      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Weighted average grant date fair value of other than options granted (in dollars per share) $ 36.50 $ 46.98 $ 42.10