| A positive or negative XBRL value can be entered for this element. Refer to the standard element label to determine the correct sign. Use a negative value for terms in brackets. | en | http://www.xbrl.org/2003/role/commentaryGuidance | http://www.xbrl.org/2003/role/link |
| Gains (losses) recognised in other comprehensive income including exchange differences, fair value measurement, entity's own equity instruments | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Total losses (gains) recognised in other comprehensive income including exchange differences, fair value measurement, entity's own equity instruments | en | http://www.xbrl.org/2009/role/negatedTotalLabel | http://www.xbrl.org/2003/role/link |
| The gains (losses) including exchange differences recognised in other comprehensive income on the fair value measurement of the entity's own equity instruments. [Refer: At fair value [member]; Other comprehensive income] | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Utili (perdite) rilevati(e) nelle altre componenti di conto economico complessivo incluse le differenze di cambio, valutazione del fair value (valore equo), strumenti rappresentativi di capitale dell'entità | it | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Gli utili (le perdite), incluse le differenze di cambio, rilevati(e) nelle altre componenti di conto economico complessivo derivanti dalla valutazione del fair value (valore equo) degli strumenti rappresentativi di capitale dell'entità. [Rif: Al fair value (valore equo) [member]; Altre componenti di conto economico complessivo] | it | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |