| r0.c0 | RuleNode_2/Group [member] | | | | ifrs-full:ConsolidatedMember | N/A |
| r0.c1 | RuleNode_2/Company [member] | | | | ifrs-full:SeparateMember | N/A |
| r1.c0 | Statement of comprehensive income [abstract]/Group [member] | ifrs-full:StatementOfComprehensiveIncomeAbstract | xbrli:stringItemType | duration | ifrs-full:ConsolidatedMember | N/A |
| r1.c1 | Statement of comprehensive income [abstract]/Company [member] | ifrs-full:StatementOfComprehensiveIncomeAbstract | xbrli:stringItemType | duration | ifrs-full:SeparateMember | N/A |
| r2.c0 | Profit (loss)/Group [member] | ifrs-full:ProfitLoss | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r2.c1 | Profit (loss)/Company [member] | ifrs-full:ProfitLoss | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r3.c0 | Other comprehensive income/(expense), net of tax [abstract]/Group [member] | ifrs-full:OtherComprehensiveIncomeAbstract | xbrli:stringItemType | duration | ifrs-full:ConsolidatedMember | N/A |
| r3.c1 | Other comprehensive income/(expense), net of tax [abstract]/Company [member] | ifrs-full:OtherComprehensiveIncomeAbstract | xbrli:stringItemType | duration | ifrs-full:SeparateMember | N/A |
| r4.c0 | Components of other comprehensive income that will not be reclassified to profit or loss, net of tax [abstract]/Group [member] | ifrs-full:ComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTaxAbstract | xbrli:stringItemType | duration | ifrs-full:ConsolidatedMember | N/A |
| r4.c1 | Components of other comprehensive income that will not be reclassified to profit or loss, net of tax [abstract]/Company [member] | ifrs-full:ComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTaxAbstract | xbrli:stringItemType | duration | ifrs-full:SeparateMember | N/A |
| r5.c0 | Other comprehensive income, net of tax, gains (losses) on revaluation/Group [member] | ifrs-full:OtherComprehensiveIncomeNetOfTaxGainsLossesOnRevaluation | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r5.c1 | Other comprehensive income, net of tax, gains (losses) on revaluation/Company [member] | ifrs-full:OtherComprehensiveIncomeNetOfTaxGainsLossesOnRevaluation | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r6.c0 | Remeasurement of defined benefit liability/Group [member] | ifrs-full:OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r6.c1 | Remeasurement of defined benefit liability/Company [member] | ifrs-full:OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r7.c0 | Other comprehensive income, net of tax, gains (losses) on other items/Group [member] | ssmt-mfrs:OtherComprehensiveIncomeNetOfTaxOtherEquityInstrumentsThatWillNotBeReclassifiedToProfitOrLoss | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r7.c1 | Other comprehensive income, net of tax, gains (losses) on other items/Company [member] | ssmt-mfrs:OtherComprehensiveIncomeNetOfTaxOtherEquityInstrumentsThatWillNotBeReclassifiedToProfitOrLoss | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r8.c0 | Share of other comprehensive income of associates and joint ventures accounted for using equity method that will not be reclassified to profit or loss, net of tax/Group [member] | ifrs-full:ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillNotBeReclassifiedToProfitOrLossNetOfTax | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r8.c1 | Share of other comprehensive income of associates and joint ventures accounted for using equity method that will not be reclassified to profit or loss, net of tax/Company [member] | ifrs-full:ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillNotBeReclassifiedToProfitOrLossNetOfTax | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r9.c0 | Total other comprehensive income that will not be reclassified to profit or loss, net of tax/Group [member] | ifrs-full:OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r9.c1 | Total other comprehensive income that will not be reclassified to profit or loss, net of tax/Company [member] | ifrs-full:OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r10.c0 | Components of other comprehensive income that will be reclassified to profit or loss, net of tax [abstract]/Group [member] | ifrs-full:ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract | xbrli:stringItemType | duration | ifrs-full:ConsolidatedMember | N/A |
| r10.c1 | Components of other comprehensive income that will be reclassified to profit or loss, net of tax [abstract]/Company [member] | ifrs-full:ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract | xbrli:stringItemType | duration | ifrs-full:SeparateMember | N/A |
| r11.c0 | Cash flow hedges [abstract]/Group [member] | ifrs-full:CashFlowHedgesAbstract | xbrli:stringItemType | duration | ifrs-full:ConsolidatedMember | N/A |
| r11.c1 | Cash flow hedges [abstract]/Company [member] | ifrs-full:CashFlowHedgesAbstract | xbrli:stringItemType | duration | ifrs-full:SeparateMember | N/A |
| r12.c0 | Gains (losses) on cash flow hedges, net of tax/Group [member] | ifrs-full:GainsLossesOnCashFlowHedgesNetOfTax | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r12.c1 | Gains (losses) on cash flow hedges, net of tax/Company [member] | ifrs-full:GainsLossesOnCashFlowHedgesNetOfTax | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r13.c0 | Reclassification adjustments on cash flow hedges, net of tax/Group [member] | ifrs-full:ReclassificationAdjustmentsOnCashFlowHedgesNetOfTax | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r13.c1 | Reclassification adjustments on cash flow hedges, net of tax/Company [member] | ifrs-full:ReclassificationAdjustmentsOnCashFlowHedgesNetOfTax | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r14.c0 | Other comprehensive income, net of tax, cash flow hedges/Group [member] | ifrs-full:OtherComprehensiveIncomeNetOfTaxCashFlowHedges | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r14.c1 | Other comprehensive income, net of tax, cash flow hedges/Company [member] | ifrs-full:OtherComprehensiveIncomeNetOfTaxCashFlowHedges | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r15.c0 | Hedges of net investment in foreign operations [abstract]/Group [member] | ifrs-full:HedgesOfNetInvestmentsInForeignOperationsAbstract | xbrli:stringItemType | duration | ifrs-full:ConsolidatedMember | N/A |
| r15.c1 | Hedges of net investment in foreign operations [abstract]/Company [member] | ifrs-full:HedgesOfNetInvestmentsInForeignOperationsAbstract | xbrli:stringItemType | duration | ifrs-full:SeparateMember | N/A |
| r16.c0 | Gains (losses) on hedges of net investments in foreign operations, net of tax/Group [member] | ifrs-full:GainsLossesOnHedgesOfNetInvestmentsInForeignOperationsNetOfTax | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r16.c1 | Gains (losses) on hedges of net investments in foreign operations, net of tax/Company [member] | ifrs-full:GainsLossesOnHedgesOfNetInvestmentsInForeignOperationsNetOfTax | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r17.c0 | Reclassification adjustments on hedges of net investments in foreign operations, net of tax/Group [member] | ifrs-full:ReclassificationAdjustmentsOnHedgesOfNetInvestmentsInForeignOperationsNetOfTax | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r17.c1 | Reclassification adjustments on hedges of net investments in foreign operations, net of tax/Company [member] | ifrs-full:ReclassificationAdjustmentsOnHedgesOfNetInvestmentsInForeignOperationsNetOfTax | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r18.c0 | Other comprehensive income, net of tax, hedges of net investments in foreign operations/Group [member] | ifrs-full:OtherComprehensiveIncomeNetOfTaxHedgesOfNetInvestmentsInForeignOperations | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r18.c1 | Other comprehensive income, net of tax, hedges of net investments in foreign operations/Company [member] | ifrs-full:OtherComprehensiveIncomeNetOfTaxHedgesOfNetInvestmentsInForeignOperations | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r19.c0 | Financial assets measured at fair value through other comprehensive income [abstract]/Group [member] | ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeAbstract | xbrli:stringItemType | duration | ifrs-full:ConsolidatedMember | N/A |
| r19.c1 | Financial assets measured at fair value through other comprehensive income [abstract]/Company [member] | ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeAbstract | xbrli:stringItemType | duration | ifrs-full:SeparateMember | N/A |
| r20.c0 | Gains (losses) on financial assets measured at fair value through other comprehensive income, net of tax/Group [member] | ifrs-full:GainsLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeNetOfTax | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r20.c1 | Gains (losses) on financial assets measured at fair value through other comprehensive income, net of tax/Company [member] | ifrs-full:GainsLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeNetOfTax | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r21.c0 | Reclassification adjustments on financial assets measured at fair value through other comprehensive income, net of tax/Group [member] | ifrs-full:ReclassificationAdjustmentsOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeNetOfTax | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r21.c1 | Reclassification adjustments on financial assets measured at fair value through other comprehensive income, net of tax/Company [member] | ifrs-full:ReclassificationAdjustmentsOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeNetOfTax | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r22.c0 | Amounts removed from equity and adjusted against fair value of financial assets on reclassification out of fair value through other comprehensive income measurement category, net of tax/Group [member] | ifrs-full:AmountsRemovedFromEquityAndAdjustedAgainstFairValueOfFinancialAssetsOnReclassificationOutOfFairValueThroughOtherComprehensiveIncomeMeasurementCategoryNetOfTax | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r22.c1 | Amounts removed from equity and adjusted against fair value of financial assets on reclassification out of fair value through other comprehensive income measurement category, net of tax/Company [member] | ifrs-full:AmountsRemovedFromEquityAndAdjustedAgainstFairValueOfFinancialAssetsOnReclassificationOutOfFairValueThroughOtherComprehensiveIncomeMeasurementCategoryNetOfTax | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r23.c0 | Other comprehensive income, net of tax, financial assets measured at fair value through other comprehensive income/Group [member] | ifrs-full:OtherComprehensiveIncomeNetOfTaxFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r23.c1 | Other comprehensive income, net of tax, financial assets measured at fair value through other comprehensive income/Company [member] | ifrs-full:OtherComprehensiveIncomeNetOfTaxFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r24.c0 | Exchange differences on translation [abstract]/Group [member] | ifrs-full:ExchangeDifferencesOnTranslationAbstract | xbrli:stringItemType | duration | ifrs-full:ConsolidatedMember | N/A |
| r24.c1 | Exchange differences on translation [abstract]/Company [member] | ifrs-full:ExchangeDifferencesOnTranslationAbstract | xbrli:stringItemType | duration | ifrs-full:SeparateMember | N/A |
| r25.c0 | Gains (losses) on exchange differences on translation, net of tax/Group [member] | ifrs-full:GainsLossesOnExchangeDifferencesOnTranslationNetOfTax | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r25.c1 | Gains (losses) on exchange differences on translation, net of tax/Company [member] | ifrs-full:GainsLossesOnExchangeDifferencesOnTranslationNetOfTax | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r26.c0 | Reclassification adjustments on exchange differences on translation, net of tax/Group [member] | ifrs-full:ReclassificationAdjustmentsOnExchangeDifferencesOnTranslationNetOfTax | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r26.c1 | Reclassification adjustments on exchange differences on translation, net of tax/Company [member] | ifrs-full:ReclassificationAdjustmentsOnExchangeDifferencesOnTranslationNetOfTax | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r27.c0 | Other comprehensive income, net of tax, exchange differences on translation/Group [member] | ifrs-full:OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r27.c1 | Other comprehensive income, net of tax, exchange differences on translation/Company [member] | ifrs-full:OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r28.c0 | Share of other comprehensive income of associates and joint ventures accounted for using equity method that will be reclassified to profit or loss, net of tax/Group [member] | ifrs-full:ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillBeReclassifiedToProfitOrLossNetOfTax | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r28.c1 | Share of other comprehensive income of associates and joint ventures accounted for using equity method that will be reclassified to profit or loss, net of tax/Company [member] | ifrs-full:ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillBeReclassifiedToProfitOrLossNetOfTax | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r29.c0 | Others comprehensive income, net of tax, gains (losses) on other items/Group [member] | ssmt-mfrs:OtherComprehensiveIncomeNetOfTaxGainsLossesOnOtherItems | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r29.c1 | Others comprehensive income, net of tax, gains (losses) on other items/Company [member] | ssmt-mfrs:OtherComprehensiveIncomeNetOfTaxGainsLossesOnOtherItems | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r30.c0 | Total other comprehensive income that will be reclassified to profit or loss, net of tax/Group [member] | ifrs-full:OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r30.c1 | Total other comprehensive income that will be reclassified to profit or loss, net of tax/Company [member] | ifrs-full:OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r31.c0 | Total other comprehensive income/Group [member] | ifrs-full:OtherComprehensiveIncome | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r31.c1 | Total other comprehensive income/Company [member] | ifrs-full:OtherComprehensiveIncome | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r32.c0 | Total comprehensive income/Group [member] | ifrs-full:ComprehensiveIncome | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r32.c1 | Total comprehensive income/Company [member] | ifrs-full:ComprehensiveIncome | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r33.c0 | Comprehensive income attributable to [abstract]/Group [member] | ifrs-full:ComprehensiveIncomeAttributableToAbstract | xbrli:stringItemType | duration | ifrs-full:ConsolidatedMember | N/A |
| r33.c1 | Comprehensive income attributable to [abstract]/Company [member] | ifrs-full:ComprehensiveIncomeAttributableToAbstract | xbrli:stringItemType | duration | ifrs-full:SeparateMember | N/A |
| r34.c0 | Comprehensive income, attributable to owners of parent/Group [member] | ifrs-full:ComprehensiveIncomeAttributableToOwnersOfParent | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r34.c1 | Comprehensive income, attributable to owners of parent/Company [member] | ifrs-full:ComprehensiveIncomeAttributableToOwnersOfParent | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r35.c0 | Comprehensive income, attributable to non-controlling interests/Group [member] | ifrs-full:ComprehensiveIncomeAttributableToNoncontrollingInterests | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r35.c1 | Comprehensive income, attributable to non-controlling interests/Company [member] | ifrs-full:ComprehensiveIncomeAttributableToNoncontrollingInterests | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |
| r36.c0 | Total comprehensive income/Group [member] | ifrs-full:ComprehensiveIncome | xbrli:monetaryItemType | duration | ifrs-full:ConsolidatedMember | iso4217:MYR |
| r36.c1 | Total comprehensive income/Company [member] | ifrs-full:ComprehensiveIncome | xbrli:monetaryItemType | duration | ifrs-full:SeparateMember | iso4217:MYR |