Financial instruments and risk management - Currency risk - Narrative (Details) - Transaction exposure hedging risk |
12 Months Ended |
|---|---|
Jun. 30, 2026 | |
| US dollar | |
| Disclosure of detailed information about financial instruments [line items] | |
| Maximum hedging period (in months) | 36 months |
| Other Currencies | |
| Disclosure of detailed information about financial instruments [line items] | |
| Maximum hedging period (in months) | 18 months |