| Others comprehensive income, net of tax, gains (losses) on other items | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Report the value, for the reporting period, of other comprehensive income that are or may be reclassified subsequently to profit or loss not reported elsewhere in the statement. | en | http://xbrl.ssm.com.my/role/ssm/rol_ssmt-mfrs-cor_2017-12-31/ReportingDocumentation | http://www.xbrl.org/2003/role/link |
| Report the value, for the reporting period, of other comprehensive income that are or may be reclassified subsequently to profit or loss not reported elsewhere in the statement. | en | http://xbrl.ssm.com.my/role/ssm/fs/clbg/lab_rol_ssmt-fs-clbg_2017-12-31/ReportingDocumentation | http://www.xbrl.org/2003/role/link |