| Gains (losses) on disposals of investment property carried at cost within fair value model | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Concept not required as it has an expiry date of 01-01-2019 | en | http://www.xbrl.org/2009/role/deprecatedLabel | http://www.xbrl.org/2003/role/link |
| 2019-01-01 | en | http://www.xbrl.org/2009/role/deprecatedDateLabel | http://www.xbrl.org/2003/role/link |
| The gains (losses) on disposals of investment property carried at cost within the fair value model. [Refer: At cost within fair value model [member]; Investment property] | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |