| Deferred income other than contract liabilities recognised as of acquisition date | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Deferred income other than contract liabilities recognised as of acquisition date | en | http://www.xbrl.org/2009/role/negatedLabel | http://www.xbrl.org/2003/role/link |
| The amount recognised as of the acquisition date for deferred income other than contract liabilities assumed in a business combination. [Refer: Deferred income other than contract liabilities; Business combinations [member]] | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Rendimento diferido distinto de passivos resultantes de contratos reconhecidos à data de aquisição | pt | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| A quantia reconhecida à data de aquisição do rendimento diferido, distinto dos passivos resultantes de contratos assumidos numa concentração de atividades empresariais. [Consultar: Rendimento diferido distinto dos passivos resultantes de contratos; Concentrações de atividades empresariais [member]] | pt | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Rendimento diferido distinto de passivos resultantes de contratos reconhecidos à data de aquisição | pt | http://www.xbrl.org/2009/role/negatedLabel | http://www.xbrl.org/2003/role/link |