| Other long-term employee benefits | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Other long-term employee benefits | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| The amount of long-term employee benefits other than post-employment benefits and termination benefits. Such benefits may include long-term paid absences, jubilee or other long-service benefits, long-term disability benefits, long-term profit-sharing and bonuses and long-term deferred remuneration. [Refer: Employee benefits expense] | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Otros beneficios a los empleados a largo plazo | es | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Otros beneficios a largo plazo | es | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |
| Other long-term benefits | en | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |