| Increase (decrease) through treasury share transactions, equity | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Increase (decrease) through treasury share transactions, equity | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| The increase (decrease) in equity resulting from treasury share transactions. [Refer: Equity; Treasury shares] | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Incrementos (disminuciones) por transacciones con acciones propias, patrimonio | es | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Incremento (disminución) por transacciones con acciones propias en cartera | es | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |
| Increase (decrease) through treasury share transactions, equity | en | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |