| Impairment loss recognised in profit or loss, investments in subsidiaries | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Report the value, for the reporting period, of adjustments for impairment loss (reversal of impairment loss) on investment in subsidiaries recognised in profit or loss to reconcile profit (loss) to net cash flow from (used in) operating activities. | en | http://xbrl.ssm.com.my/role/ssm/rol_ssmt-mpers-cor_2017-12-31/ReportingDocumentation | http://www.xbrl.org/2003/role/link |
| Report the value, for the reporting period, of adjustments for impairment loss (reversal of impairment loss) on investment in subsidiaries recognised in profit or loss to reconcile profit (loss) to net cash flow from (used in) operating activities. | en | http://xbrl.ssm.com.my/role/ssm/fs/mpers/lab_rol_ssmt-fs-mpers_2017-12-31/ReportingDocumentation | http://www.xbrl.org/2003/role/link |
| Impairment/(reversal of impairment) of investment in subsidiaries | en | http://xbrl.ssm.com.my/role/ssm/fs/mpers/lab_rol_ssmt-fs-mpers_2017-12-31/ReportingLabel | http://www.xbrl.org/2003/role/link |