| Trade and other non-current receivables | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Trade and other non-current receivables | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Total trade and other non-current receivables | en | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |
| Total trade and other non-current receivables | en | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |
| The amount of non-current trade receivables and non-current other receivables. [Refer: Non-current trade receivables; Other non-current receivables] | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Cuentas comerciales por cobrar y otras cuentas por cobrar no corrientes | es | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Total cuentas comerciales por cobrar y otras cuentas por cobrar no corrientes | es | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |
| Cuentas por cobrar no corrientes | es | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |
| Total cuentas por cobrar no corrientes | es | http://www.xbrl.org/2003/role/positiveLabel | http://www.xbrl.org/2003/role/link |
| Trade and other non-current receivables | en | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |
| Total trade and other non-current receivables | en | http://www.xbrl.org/2003/role/positiveLabel | http://www.xbrl.org/2003/role/link |