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