{ "instance": { "snn-20211231x20f.htm": { "axisCustom": 2, "axisStandard": 39, "contextCount": 829, "dts": { "calculationLink": { "local": [ "snn-20211231_cal.xml" ] }, "definitionLink": { "local": [ "snn-20211231_def.xml" ] }, "inline": { "local": [ "snn-20211231x20f.htm" ] }, "labelLink": { "local": [ "snn-20211231_lab.xml" ] }, "presentationLink": { "local": [ "snn-20211231_pre.xml" ] }, "schema": { "local": [ "snn-20211231.xsd" ], "remote": [ "http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd", "http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd", "http://www.xbrl.org/2003/xl-2003-12-31.xsd", "http://www.xbrl.org/2003/xlink-2003-12-31.xsd", "http://www.xbrl.org/2005/xbrldt-2005.xsd", "http://www.xbrl.org/2006/ref-2006-02-27.xsd", "http://www.xbrl.org/dtr/type/nonNumeric-2009-12-16.xsd", "http://www.xbrl.org/dtr/type/numeric-2009-12-16.xsd", "http://www.xbrl.org/lrr/arcrole/esma-arcrole-2018-11-21.xsd", "http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd", "http://www.xbrl.org/lrr/role/net-2009-12-16.xsd", "http://www.xbrl.org/lrr/role/reference-2009-12-16.xsd", "http://xbrl.ifrs.org/taxonomy/2021-03-24/full_ifrs/full_ifrs-cor_2021-03-24.xsd", "https://www.xbrl.org/2020/extensible-enumerations-2.0.xsd", "https://www.xbrl.org/dtr/type/2020-01-21/types.xsd", "https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd", "https://xbrl.fasb.org/srt/2021/elts/srt-roles-2021-01-31.xsd", "https://xbrl.fasb.org/srt/2021/elts/srt-types-2021-01-31.xsd", "https://xbrl.fasb.org/us-gaap/2021/elts/us-roles-2021-01-31.xsd", "https://xbrl.sec.gov/country/2021/country-2021.xsd", "https://xbrl.sec.gov/currency/2021/currency-2021.xsd", "https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd" ] } }, "elementCount": 1060, "entityCount": 1, "hidden": { "http://www.smith-nephew.com/20211231": 17, "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full": 23, "http://xbrl.sec.gov/dei/2021q4": 13, "total": 53 }, "keyCustom": 258, "keyStandard": 485, "memberCustom": 106, "memberStandard": 76, "nsprefix": "snn", "nsuri": "http://www.smith-nephew.com/20211231", "report": { "R1": { "firstAnchor": { "ancestors": [ "p", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "dei:DocumentType", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "document", "isDefault": "true", "longName": "00090 - Document - Document and Entity Information", "role": "http://www.smith-nephew.com/role/DocumentDocumentAndEntityInformation", "shortName": "Document and Entity Information", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "p", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "dei:DocumentType", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R10": { "firstAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:DisclosureOfProfitLossFromOperatingActivitiesExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "10301 - Disclosure - OPERATING PROFIT", "role": "http://www.smith-nephew.com/role/DisclosureOperatingProfit", "shortName": "OPERATING PROFIT", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:DisclosureOfProfitLossFromOperatingActivitiesExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R100": { "firstAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "snn:DisclosureOfPrincipalActuarialAssumptionsTableTextBlock", "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2021_ifrs-full_DefinedBenefitPlansAxis_snn_DefinedBenefitPensionPlansMember_ifrs-full_GeographicalAreasAxis_country_GB_Pp3kaD2WNUy08VKVgzDhKQ", "decimals": "3", "first": true, "lang": null, "name": "ifrs-full:ActuarialAssumptionOfDiscountRates", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_pure_Z2ONrGcqdEKahegMmW97aA", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "41804 - Disclosure - RETIREMENT BENEFIT OBLIGATIONS - Principal actuarial assumptions (Details)", "role": "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsPrincipalActuarialAssumptionsDetails", "shortName": "RETIREMENT BENEFIT OBLIGATIONS - Principal actuarial assumptions (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "snn:DisclosureOfPrincipalActuarialAssumptionsTableTextBlock", "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2021_ifrs-full_DefinedBenefitPlansAxis_snn_DefinedBenefitPensionPlansMember_ifrs-full_GeographicalAreasAxis_country_GB_Pp3kaD2WNUy08VKVgzDhKQ", "decimals": "3", "first": true, "lang": null, "name": "ifrs-full:ActuarialAssumptionOfDiscountRates", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_pure_Z2ONrGcqdEKahegMmW97aA", "xsiNil": "false" } }, "R101": { "firstAnchor": { "ancestors": [ "p", "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_ifrs-full_DefinedBenefitPlansAxis_snn_DefinedBenefitPensionPlansMember_ifrs-full_GeographicalAreasAxis_country_GB_gV1DjSGbeEWn9oBelbhs1g", "decimals": "-6", "first": true, "lang": null, "name": "snn:ContributionToPlanFunding", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "41805 - Disclosure - RETIREMENT BENEFIT OBLIGATIONS - Sensitivity analysis (Details)", "role": "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsSensitivityAnalysisDetails", "shortName": "RETIREMENT BENEFIT OBLIGATIONS - Sensitivity analysis (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "p", "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_ifrs-full_DefinedBenefitPlansAxis_snn_DefinedBenefitPensionPlansMember_ifrs-full_GeographicalAreasAxis_country_GB_gV1DjSGbeEWn9oBelbhs1g", "decimals": "-6", "first": true, "lang": null, "name": "snn:ContributionToPlanFunding", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" } }, "R102": { "firstAnchor": { "ancestors": [ "span", "p", "td", "tr", "table", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2020_THhWb3hb50WncuQDqKOdsw", "decimals": "-6", "first": true, "lang": null, "name": "ifrs-full:Equity", "reportCount": 1, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "41901 - Disclosure - EQUITY - Share Capital (Details)", "role": "http://www.smith-nephew.com/role/DisclosureEquityShareCapitalDetails", "shortName": "EQUITY - Share Capital (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "ifrs-full:DisclosureOfClassesOfShareCapitalExplanatory", "ifrs-full:DisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2021_ifrs-full_ClassesOfShareCapitalAxis_ifrs-full_OrdinarySharesMember_ay8YcaZOCUC1Fs0SCysHtA", "decimals": "-3", "lang": null, "name": "ifrs-full:NumberOfSharesAuthorised", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_shares_IJLJkPZxmE2p8ZhlkohrPA", "xsiNil": "false" } }, "R103": { "firstAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2021_FDdgwptUGU2teenT_k3_fg", "decimals": "-6", "first": true, "lang": null, "name": "ifrs-full:Equity", "reportCount": 1, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "41902 - Disclosure - EQUITY - Equity Components (Details)", "role": "http://www.smith-nephew.com/role/DisclosureEquityEquityComponentsDetails", "shortName": "EQUITY - Equity Components (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "snn:ScheduleOfEquityComponentsTableTextBlock", "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2021_ifrs-full_ComponentsOfEquityAxis_snn_RetainedEarningsAndOtherReservesMember_uXe769klo0eBH_FXzNY8ug", "decimals": "-6", "lang": null, "name": "ifrs-full:Equity", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" } }, "R104": { "firstAnchor": { "ancestors": [ "span", "p", "td", "tr", "table", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2020_To_12_31_2020_9MP7oVNiOEiRQCu-P3bJZw", "decimals": "-6", "first": true, "lang": null, "name": "ifrs-full:PurchaseOfTreasuryShares", "reportCount": 1, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "41903 - Disclosure - EQUITY - Shares Buy-back (Details)", "role": "http://www.smith-nephew.com/role/DisclosureEquitySharesBuyBackDetails", "shortName": "EQUITY - Shares Buy-back (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "p", "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": "2", "lang": null, "name": "snn:PercentageOfWaiverOfDividendsOverTotalPaidDividends", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_pure_Z2ONrGcqdEKahegMmW97aA", "xsiNil": "false" } }, "R105": { "firstAnchor": { "ancestors": [ "span", "p", "td", "tr", "table", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2020_THhWb3hb50WncuQDqKOdsw", "decimals": "-6", "first": true, "lang": null, "name": "ifrs-full:TreasuryShares", "reportCount": 1, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "41904 - Disclosure - EQUITY - Treasury Shares (Details)", "role": "http://www.smith-nephew.com/role/DisclosureEquityTreasurySharesDetails", "shortName": "EQUITY - Treasury Shares (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "ifrs-full:DisclosureOfTreasurySharesExplanatory", "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2021_ifrs-full_ComponentsOfEquityAxis_ifrs-full_TreasurySharesMember_79Uorg4U0ku1F4wAWxEYCQ", "decimals": "-6", "lang": null, "name": "ifrs-full:TreasuryShares", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" } }, "R106": { "firstAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": "-6", "first": true, "lang": null, "name": "ifrs-full:DividendsPaid", "reportCount": 1, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "41905 - Disclosure - EQUITY - Dividends (Details)", "role": "http://www.smith-nephew.com/role/DisclosureEquityDividendsDetails", "shortName": "EQUITY - Dividends (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "p", "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": "-3", "lang": null, "name": "snn:DistributableReserves", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" } }, "R107": { "firstAnchor": { "ancestors": [ "span", "p", "td", "tr", "table", "snn:DisclosureOfNetDebtTableTextBlock", "ifrs-full:DisclosureOfBorrowingsExplanatory", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2020_THhWb3hb50WncuQDqKOdsw", "decimals": "-6", "first": true, "lang": null, "name": "ifrs-full:NetDebt", "reportCount": 1, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "42001 - Disclosure - CASH FLOW STATEMENT - Analysis of net debt (Details)", "role": "http://www.smith-nephew.com/role/DisclosureCashFlowStatementAnalysisOfNetDebtDetails", "shortName": "CASH FLOW STATEMENT - Analysis of net debt (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "snn:DisclosureOfCashFlowStatementTableTextBlock", "ifrs-full:DisclosureOfCashFlowStatementExplanatory", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2021_FDdgwptUGU2teenT_k3_fg", "decimals": "-6", "lang": null, "name": "ifrs-full:LeaseLiabilities", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" } }, "R108": { "firstAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": "-6", "first": true, "lang": null, "name": "ifrs-full:IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges", "reportCount": 1, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "42002 - Disclosure - CASH FLOW STATEMENT - Reconciliation of net cash flow to movement in net debt (Details)", "role": "http://www.smith-nephew.com/role/DisclosureCashFlowStatementReconciliationOfNetCashFlowToMovementInNetDebtDetails", "shortName": "CASH FLOW STATEMENT - Reconciliation of net cash flow to movement in net debt (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "ix:continuation", "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": "-6", "lang": null, "name": "snn:ProceedsFromRepaymentsOfBorrowingsClassifiedAsFinancingActivities", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" } }, "R109": { "firstAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2021_FDdgwptUGU2teenT_k3_fg", "decimals": "-6", "first": true, "lang": null, "name": "ifrs-full:BalancesWithBanks", "reportCount": 1, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "42003 - Disclosure - CASH FLOW STATEMENT - Cash and cash equivalents (Details)", "role": "http://www.smith-nephew.com/role/DisclosureCashFlowStatementCashAndCashEquivalentsDetails", "shortName": "CASH FLOW STATEMENT - Cash and cash equivalents (Details)", "subGroupType": "details", "uniqueAnchor": null }, "R11": { "firstAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "snn:DisclosureOfInterestAndOtherFinanceCostsTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "10401 - Disclosure - INTEREST AND OTHER FINANCE COSTS", "role": "http://www.smith-nephew.com/role/DisclosureInterestAndOtherFinanceCosts", "shortName": "INTEREST AND OTHER FINANCE COSTS", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "snn:DisclosureOfInterestAndOtherFinanceCostsTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R110": { "firstAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "ix:continuation", "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": "-6", "first": true, "lang": null, "name": "snn:RepaymentsOfCurrentAndNonCurrentBorrowings", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "42004 - Disclosure - CASH FLOW STATEMENT - Cash outflows (inflows) arising from financing activities (Details)", "role": "http://www.smith-nephew.com/role/DisclosureCashFlowStatementCashOutflowsInflowsArisingFromFinancingActivitiesDetails", "shortName": "CASH FLOW STATEMENT - Cash outflows (inflows) arising from financing activities (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "ix:continuation", "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": "-6", "first": true, "lang": null, "name": "snn:RepaymentsOfCurrentAndNonCurrentBorrowings", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" } }, "R111": { "firstAnchor": { "ancestors": [ "span", "p", "ifrs-full:DisclosureOfTradeAndOtherPayablesExplanatory", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2021_FDdgwptUGU2teenT_k3_fg", "decimals": "-6", "first": true, "lang": null, "name": "ifrs-full:ContingentConsiderationRecognisedAsOfAcquisitionDate", "reportCount": 1, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "42101 - Disclosure - ACQUISITIONS (Details)", "role": "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails", "shortName": "ACQUISITIONS (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "p", "snn:DisclosureOfBusinessCombinationsAndDisposalsTextBlock", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2020_THhWb3hb50WncuQDqKOdsw", "decimals": "-6", "lang": null, "name": "snn:ConsiderationTransferredNetOfCashAcquiredAcquisitionDateFairValue", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" } }, "R112": { "firstAnchor": { "ancestors": [ "p", "ifrs-full:DisclosureOfNotesAndOtherExplanatoryInformationExplanatory", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2020_THhWb3hb50WncuQDqKOdsw", "decimals": "INF", "first": true, "lang": null, "name": "ifrs-full:NumberOfOutstandingShareOptions", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_Options_Ur6rJ3zV2keH6XlDsmIpKA", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "42201 - Disclosure - OTHER NOTES TO THE ACCOUNTS - Stock Options Outstanding (Details)", "role": "http://www.smith-nephew.com/role/DisclosureOtherNotesToAccountsStockOptionsOutstandingDetails", "shortName": "OTHER NOTES TO THE ACCOUNTS - Stock Options Outstanding (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "p", "ifrs-full:DisclosureOfNotesAndOtherExplanatoryInformationExplanatory", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2020_THhWb3hb50WncuQDqKOdsw", "decimals": "INF", "first": true, "lang": null, "name": "ifrs-full:NumberOfOutstandingShareOptions", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_Options_Ur6rJ3zV2keH6XlDsmIpKA", "xsiNil": "false" } }, "R113": { "firstAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "ifrs-full:DisclosureOfRelatedPartyExplanatory", "ifrs-full:DisclosureOfNotesAndOtherExplanatoryInformationExplanatory", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_ifrs-full_CategoriesOfRelatedPartiesAxis_ifrs-full_KeyManagementPersonnelOfEntityOrParentMember_836RMhkq00qJ-uaokI8YqA", "decimals": "-6", "first": true, "lang": null, "name": "ifrs-full:KeyManagementPersonnelCompensationShorttermEmployeeBenefits", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "42202 - Disclosure - OTHER NOTES TO THE ACCOUNTS - Related Party Transactions (Details)", "role": "http://www.smith-nephew.com/role/DisclosureOtherNotesToAccountsRelatedPartyTransactionsDetails", "shortName": "OTHER NOTES TO THE ACCOUNTS - Related Party Transactions (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "ifrs-full:DisclosureOfRelatedPartyExplanatory", "ifrs-full:DisclosureOfNotesAndOtherExplanatoryInformationExplanatory", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_ifrs-full_CategoriesOfRelatedPartiesAxis_ifrs-full_KeyManagementPersonnelOfEntityOrParentMember_836RMhkq00qJ-uaokI8YqA", "decimals": "-6", "first": true, "lang": null, "name": "ifrs-full:KeyManagementPersonnelCompensationShorttermEmployeeBenefits", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" } }, "R114": { "firstAnchor": { "ancestors": [ "span", "p", "ifrs-full:DisclosureOfTradeAndOtherPayablesExplanatory", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2021_FDdgwptUGU2teenT_k3_fg", "decimals": "-6", "first": true, "lang": null, "name": "ifrs-full:ContingentConsiderationRecognisedAsOfAcquisitionDate", "reportCount": 1, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "42301 - Disclosure - POST BALANCE SHEET EVENTS (Details)", "role": "http://www.smith-nephew.com/role/DisclosurePostBalanceSheetEventsDetails", "shortName": "POST BALANCE SHEET EVENTS (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "p", "ifrs-full:DisclosureOfEventsAfterReportingPeriodExplanatory", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_1_18_2022_ifrs-full_BusinessCombinationsAxis_snn_EngageSurgicalMember_Saj0R_5f-0KvD50cFItpMw", "decimals": "INF", "lang": null, "name": "ifrs-full:PercentageOfVotingEquityInterestsAcquired", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_pure_Z2ONrGcqdEKahegMmW97aA", "xsiNil": "false" } }, "R12": { "firstAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:DisclosureOfIncomeTaxExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "10501 - Disclosure - TAXATION", "role": "http://www.smith-nephew.com/role/DisclosureTaxation", "shortName": "TAXATION", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:DisclosureOfIncomeTaxExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R13": { "firstAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:DisclosureOfEarningsPerShareExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "10601 - Disclosure - EARNINGS PER ORDINARY SHARE", "role": "http://www.smith-nephew.com/role/DisclosureEarningsPerOrdinaryShare", "shortName": "EARNINGS PER ORDINARY SHARE", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:DisclosureOfEarningsPerShareExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R14": { "firstAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:DisclosureOfPropertyPlantAndEquipmentExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "10701 - Disclosure - PROPERTY, PLANT AND EQUIPMENT", "role": "http://www.smith-nephew.com/role/DisclosurePropertyPlantAndEquipment", "shortName": "PROPERTY, PLANT AND EQUIPMENT", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:DisclosureOfPropertyPlantAndEquipmentExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R15": { "firstAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:DisclosureOfGoodwillExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "10801 - Disclosure - GOODWILL", "role": "http://www.smith-nephew.com/role/DisclosureGoodwill", "shortName": "GOODWILL", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:DisclosureOfGoodwillExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R16": { "firstAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:DisclosureOfIntangibleAssetsExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "10901 - Disclosure - INTANGIBLE ASSETS", "role": "http://www.smith-nephew.com/role/DisclosureIntangibleAssets", "shortName": "INTANGIBLE ASSETS", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:DisclosureOfIntangibleAssetsExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R17": { "firstAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:DisclosureOfFinancialInstrumentsAtFairValueThroughProfitOrLossExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "11001 - Disclosure - INVESTMENTS", "role": "http://www.smith-nephew.com/role/DisclosureInvestments", "shortName": "INVESTMENTS", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:DisclosureOfFinancialInstrumentsAtFairValueThroughProfitOrLossExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R18": { "firstAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:DisclosureOfInterestsInAssociatesExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "11101 - Disclosure - INVESTMENTS IN ASSOCIATES", "role": "http://www.smith-nephew.com/role/DisclosureInvestmentsInAssociates", "shortName": "INVESTMENTS IN ASSOCIATES", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:DisclosureOfInterestsInAssociatesExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R19": { "firstAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:DisclosureOfInventoriesExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "11201 - Disclosure - INVENTORIES", "role": "http://www.smith-nephew.com/role/DisclosureInventories", "shortName": "INVENTORIES", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:DisclosureOfInventoriesExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R2": { "firstAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": "-6", "first": true, "lang": null, "name": "ifrs-full:RevenueFromContractsWithCustomers", "reportCount": 1, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" }, "groupType": "statement", "isDefault": "false", "longName": "00100 - Statement - GROUP INCOME STATEMENT", "role": "http://www.smith-nephew.com/role/StatementGroupIncomeStatement", "shortName": "GROUP INCOME STATEMENT", "subGroupType": "", "uniqueAnchor": null }, "R20": { "firstAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:DisclosureOfTradeAndOtherReceivablesExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "11301 - Disclosure - TRADE AND OTHER RECEIVABLES", "role": "http://www.smith-nephew.com/role/DisclosureTradeAndOtherReceivables", "shortName": "TRADE AND OTHER RECEIVABLES", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:DisclosureOfTradeAndOtherReceivablesExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R21": { "firstAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:DisclosureOfTradeAndOtherPayablesExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "11401 - Disclosure - TRADE AND OTHER PAYABLES", "role": "http://www.smith-nephew.com/role/DisclosureTradeAndOtherPayables", "shortName": "TRADE AND OTHER PAYABLES", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:DisclosureOfTradeAndOtherPayablesExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R22": { "firstAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:DisclosureOfBorrowingsExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "11501 - Disclosure - CASH AND BORROWINGS", "role": "http://www.smith-nephew.com/role/DisclosureCashAndBorrowings", "shortName": "CASH AND BORROWINGS", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:DisclosureOfBorrowingsExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R23": { "firstAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:DisclosureOfFinancialRiskManagementExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "11601 - Disclosure - FINANCIAL INSTRUMENTS AND RISK MANAGEMENT", "role": "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagement", "shortName": "FINANCIAL INSTRUMENTS AND RISK MANAGEMENT", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:DisclosureOfFinancialRiskManagementExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R24": { "firstAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:DisclosureOfOtherProvisionsContingentLiabilitiesAndContingentAssetsExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "11701 - Disclosure - PROVISIONS AND CONTINGENCIES", "role": "http://www.smith-nephew.com/role/DisclosureProvisionsAndContingencies", "shortName": "PROVISIONS AND CONTINGENCIES", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:DisclosureOfOtherProvisionsContingentLiabilitiesAndContingentAssetsExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R25": { "firstAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:DisclosureOfEmployeeBenefitsExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "11801 - Disclosure - RETIREMENT BENEFIT OBLIGATIONS", "role": "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligations", "shortName": "RETIREMENT BENEFIT OBLIGATIONS", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:DisclosureOfEmployeeBenefitsExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R26": { "firstAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:DisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "11901 - Disclosure - EQUITY", "role": "http://www.smith-nephew.com/role/DisclosureEquity", "shortName": "EQUITY", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:DisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R27": { "firstAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:DisclosureOfCashFlowStatementExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "12001 - Disclosure - CASH FLOW STATEMENT", "role": "http://www.smith-nephew.com/role/DisclosureCashFlowStatement", "shortName": "CASH FLOW STATEMENT", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:DisclosureOfCashFlowStatementExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R28": { "firstAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "snn:DisclosureOfBusinessCombinationsAndDisposalsTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "12101 - Disclosure - ACQUISITIONS", "role": "http://www.smith-nephew.com/role/DisclosureAcquisitions", "shortName": "ACQUISITIONS", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "snn:DisclosureOfBusinessCombinationsAndDisposalsTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R29": { "firstAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:DisclosureOfNotesAndOtherExplanatoryInformationExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "12201 - Disclosure - OTHER NOTES TO THE ACCOUNTS", "role": "http://www.smith-nephew.com/role/DisclosureOtherNotesToAccounts", "shortName": "OTHER NOTES TO THE ACCOUNTS", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:DisclosureOfNotesAndOtherExplanatoryInformationExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R3": { "firstAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": "-6", "first": true, "lang": null, "name": "ifrs-full:ProfitLoss", "reportCount": 1, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" }, "groupType": "statement", "isDefault": "false", "longName": "00200 - Statement - GROUP STATEMENT OF COMPREHENSIVE INCOME", "role": "http://www.smith-nephew.com/role/StatementGroupStatementOfComprehensiveIncome", "shortName": "GROUP STATEMENT OF COMPREHENSIVE INCOME", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": "-6", "lang": null, "name": "ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLoss", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" } }, "R30": { "firstAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:DisclosureOfEventsAfterReportingPeriodExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "12301 - Disclosure - POST BALANCE SHEET EVENTS", "role": "http://www.smith-nephew.com/role/DisclosurePostBalanceSheetEvents", "shortName": "POST BALANCE SHEET EVENTS", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:DisclosureOfEventsAfterReportingPeriodExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R31": { "firstAnchor": { "ancestors": [ "ifrs-full:DisclosureOfBasisOfPreparationOfFinancialStatementsExplanatory", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:ExplanationOfMeasurementBasesUsedInPreparingFinancialStatements", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "20102 - Disclosure - SIGNIFICANT ACCOUNTING POLICIES (Policies)", "role": "http://www.smith-nephew.com/role/DisclosureSignificantAccountingPoliciesPolicies", "shortName": "SIGNIFICANT ACCOUNTING POLICIES (Policies)", "subGroupType": "policies", "uniqueAnchor": { "ancestors": [ "ifrs-full:DisclosureOfBasisOfPreparationOfFinancialStatementsExplanatory", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:ExplanationOfMeasurementBasesUsedInPreparingFinancialStatements", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R32": { "firstAnchor": { "ancestors": [ "ifrs-full:DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatory", "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:DisclosureOfEffectOfChangesInForeignExchangeRatesExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "30103 - Disclosure - BASIS OF PREPARATION (Tables)", "role": "http://www.smith-nephew.com/role/DisclosureBasisOfPreparationTables", "shortName": "BASIS OF PREPARATION (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ifrs-full:DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatory", "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:DisclosureOfEffectOfChangesInForeignExchangeRatesExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R33": { "firstAnchor": { "ancestors": [ "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "snn:DisclosureOfSegmentsRevenueReconciliationExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "30203 - Disclosure - BUSINESS SEGMENT INFORMATION (Tables)", "role": "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationTables", "shortName": "BUSINESS SEGMENT INFORMATION (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "snn:DisclosureOfSegmentsRevenueReconciliationExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R34": { "firstAnchor": { "ancestors": [ "ifrs-full:DisclosureOfProfitLossFromOperatingActivitiesExplanatory", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:DisclosureOfExpensesExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "30303 - Disclosure - OPERATING PROFIT (Tables)", "role": "http://www.smith-nephew.com/role/DisclosureOperatingProfitTables", "shortName": "OPERATING PROFIT (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ifrs-full:DisclosureOfProfitLossFromOperatingActivitiesExplanatory", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:DisclosureOfExpensesExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R35": { "firstAnchor": { "ancestors": [ "snn:DisclosureOfInterestAndOtherFinanceCostsTextBlock", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:DisclosureOfFinanceIncomeExpenseExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "30403 - Disclosure - INTEREST AND OTHER FINANCE COSTS (Tables)", "role": "http://www.smith-nephew.com/role/DisclosureInterestAndOtherFinanceCostsTables", "shortName": "INTEREST AND OTHER FINANCE COSTS (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "snn:DisclosureOfInterestAndOtherFinanceCostsTextBlock", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:DisclosureOfFinanceIncomeExpenseExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R36": { "firstAnchor": { "ancestors": [ "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "snn:IfrsScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "30503 - Disclosure - TAXATION (Tables)", "role": "http://www.smith-nephew.com/role/DisclosureTaxationTables", "shortName": "TAXATION (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "snn:IfrsScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R37": { "firstAnchor": { "ancestors": [ "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:EarningsPerShareExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "30603 - Disclosure - EARNINGS PER ORDINARY SHARE (Tables)", "role": "http://www.smith-nephew.com/role/DisclosureEarningsPerOrdinaryShareTables", "shortName": "EARNINGS PER ORDINARY SHARE (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:EarningsPerShareExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R38": { "firstAnchor": { "ancestors": [ "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "30703 - Disclosure - PROPERTY, PLANT AND EQUIPMENT (Tables)", "role": "http://www.smith-nephew.com/role/DisclosurePropertyPlantAndEquipmentTables", "shortName": "PROPERTY, PLANT AND EQUIPMENT (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R39": { "firstAnchor": { "ancestors": [ "ifrs-full:DisclosureOfGoodwillExplanatory", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:DisclosureOfReconciliationOfChangesInGoodwillExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "30803 - Disclosure - GOODWILL (Table)", "role": "http://www.smith-nephew.com/role/DisclosureGoodwillTable", "shortName": "GOODWILL (Table)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ifrs-full:DisclosureOfGoodwillExplanatory", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:DisclosureOfReconciliationOfChangesInGoodwillExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R4": { "firstAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2021_FDdgwptUGU2teenT_k3_fg", "decimals": "-6", "first": true, "lang": null, "name": "ifrs-full:PropertyPlantAndEquipment", "reportCount": 1, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" }, "groupType": "statement", "isDefault": "false", "longName": "00300 - Statement - GROUP BALANCE SHEET", "role": "http://www.smith-nephew.com/role/StatementGroupBalanceSheet", "shortName": "GROUP BALANCE SHEET", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2021_FDdgwptUGU2teenT_k3_fg", "decimals": "-6", "lang": null, "name": "ifrs-full:CurrentReceivablesFromTaxesOtherThanIncomeTax", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" } }, "R40": { "firstAnchor": { "ancestors": [ "ifrs-full:DisclosureOfIntangibleAssetsExplanatory", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:DisclosureOfDetailedInformationAboutIntangibleAssetsExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "30903 - Disclosure - INTANGIBLE ASSETS (Tables)", "role": "http://www.smith-nephew.com/role/DisclosureIntangibleAssetsTables", "shortName": "INTANGIBLE ASSETS (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ifrs-full:DisclosureOfIntangibleAssetsExplanatory", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:DisclosureOfDetailedInformationAboutIntangibleAssetsExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R41": { "firstAnchor": { "ancestors": [ "ifrs-full:DisclosureOfFinancialInstrumentsAtFairValueThroughProfitOrLossExplanatory", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:DisclosureOfDetailedInformationAboutFinancialInstrumentsExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "31003 - Disclosure - INVESTMENTS (Tables)", "role": "http://www.smith-nephew.com/role/DisclosureInvestmentsTables", "shortName": "INVESTMENTS (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ifrs-full:DisclosureOfFinancialInstrumentsAtFairValueThroughProfitOrLossExplanatory", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:DisclosureOfDetailedInformationAboutFinancialInstrumentsExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R42": { "firstAnchor": { "ancestors": [ "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:DisclosureOfInvestmentsAccountedForUsingEquityMethodExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "31103 - Disclosure - INVESTMENTS IN ASSOCIATES (Tables)", "role": "http://www.smith-nephew.com/role/DisclosureInvestmentsInAssociatesTables", "shortName": "INVESTMENTS IN ASSOCIATES (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:DisclosureOfInvestmentsAccountedForUsingEquityMethodExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R43": { "firstAnchor": { "ancestors": [ "ifrs-full:DisclosureOfInventoriesExplanatory", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "snn:IfrsScheduleOfInventoryCurrentTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "31203 - Disclosure - INVENTORIES (Tables)", "role": "http://www.smith-nephew.com/role/DisclosureInventoriesTables", "shortName": "INVENTORIES (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ifrs-full:DisclosureOfInventoriesExplanatory", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "snn:IfrsScheduleOfInventoryCurrentTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R44": { "firstAnchor": { "ancestors": [ "ifrs-full:DisclosureOfTradeAndOtherReceivablesExplanatory", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "snn:DisclosureOfDetailsOfTradeAndOtherReceivablesExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "31303 - Disclosure - TRADE AND OTHER RECEIVABLES (Tables)", "role": "http://www.smith-nephew.com/role/DisclosureTradeAndOtherReceivablesTables", "shortName": "TRADE AND OTHER RECEIVABLES (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ifrs-full:DisclosureOfTradeAndOtherReceivablesExplanatory", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "snn:DisclosureOfDetailsOfTradeAndOtherReceivablesExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R45": { "firstAnchor": { "ancestors": [ "ifrs-full:DisclosureOfTradeAndOtherPayablesExplanatory", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "snn:DisclosureOfDetailsOfTradeAndOtherPayablesTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "31403 - Disclosure - TRADE AND OTHER PAYABLES (Tables)", "role": "http://www.smith-nephew.com/role/DisclosureTradeAndOtherPayablesTables", "shortName": "TRADE AND OTHER PAYABLES (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ifrs-full:DisclosureOfTradeAndOtherPayablesExplanatory", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "snn:DisclosureOfDetailsOfTradeAndOtherPayablesTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R46": { "firstAnchor": { "ancestors": [ "ifrs-full:DisclosureOfBorrowingsExplanatory", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "snn:DisclosureOfNetDebtTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "31503 - Disclosure - CASH AND BORROWINGS (Tables)", "role": "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsTables", "shortName": "CASH AND BORROWINGS (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ifrs-full:DisclosureOfBorrowingsExplanatory", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "snn:DisclosureOfNetDebtTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R47": { "firstAnchor": { "ancestors": [ "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:DisclosureOfDetailedInformationAboutHedgingInstrumentsExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "31603 - Disclosure - FINANCIAL INSTRUMENTS AND RISK MANAGEMENT (Table)", "role": "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementTable", "shortName": "FINANCIAL INSTRUMENTS AND RISK MANAGEMENT (Table)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:DisclosureOfDetailedInformationAboutHedgingInstrumentsExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R48": { "firstAnchor": { "ancestors": [ "ifrs-full:DisclosureOfOtherProvisionsContingentLiabilitiesAndContingentAssetsExplanatory", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:DisclosureOfOtherProvisionsExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "31703 - Disclosure - PROVISIONS AND CONTINGENCIES (Tables)", "role": "http://www.smith-nephew.com/role/DisclosureProvisionsAndContingenciesTables", "shortName": "PROVISIONS AND CONTINGENCIES (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ifrs-full:DisclosureOfOtherProvisionsContingentLiabilitiesAndContingentAssetsExplanatory", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:DisclosureOfOtherProvisionsExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R49": { "firstAnchor": { "ancestors": [ "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:DisclosureOfDefinedBenefitPlansExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "31803 - Disclosure - RETIREMENT BENEFIT OBLIGATIONS (Table)", "role": "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsTable", "shortName": "RETIREMENT BENEFIT OBLIGATIONS (Table)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:DisclosureOfDefinedBenefitPlansExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R5": { "firstAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": "-6", "first": true, "lang": null, "name": "ifrs-full:ProfitLossBeforeTax", "reportCount": 1, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" }, "groupType": "statement", "isDefault": "false", "longName": "00400 - Statement - GROUP CASH FLOW STATEMENT", "role": "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement", "shortName": "GROUP CASH FLOW STATEMENT", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": "-6", "lang": null, "name": "ifrs-full:AdjustmentsForInterestExpense", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" } }, "R50": { "firstAnchor": { "ancestors": [ "ifrs-full:DisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:DisclosureOfClassesOfShareCapitalExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "31903 - Disclosure - EQUITY (Table)", "role": "http://www.smith-nephew.com/role/DisclosureEquityTable", "shortName": "EQUITY (Table)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ifrs-full:DisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:DisclosureOfClassesOfShareCapitalExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R51": { "firstAnchor": { "ancestors": [ "ifrs-full:DisclosureOfCashFlowStatementExplanatory", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "snn:DisclosureOfCashFlowStatementTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "32003 - Disclosure - CASH FLOW STATEMENT (Tables)", "role": "http://www.smith-nephew.com/role/DisclosureCashFlowStatementTables", "shortName": "CASH FLOW STATEMENT (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ifrs-full:DisclosureOfCashFlowStatementExplanatory", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "snn:DisclosureOfCashFlowStatementTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R52": { "firstAnchor": { "ancestors": [ "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_ifrs-full_BusinessCombinationsAxis_snn_Acquisitions2019Member_OE_i2r4yT0GsAV-C8W7OVQ", "decimals": null, "first": true, "lang": "en-US", "name": "snn:DisclosureOfBusinessCombinationsTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "32103 - Disclosure - ACQUISITIONS (Tables)", "role": "http://www.smith-nephew.com/role/DisclosureAcquisitionsTables", "shortName": "ACQUISITIONS (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_ifrs-full_BusinessCombinationsAxis_snn_Acquisitions2019Member_OE_i2r4yT0GsAV-C8W7OVQ", "decimals": null, "first": true, "lang": "en-US", "name": "snn:DisclosureOfBusinessCombinationsTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R53": { "firstAnchor": { "ancestors": [ "ifrs-full:DisclosureOfNotesAndOtherExplanatoryInformationExplanatory", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:DisclosureOfRelatedPartyExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "32203 - Disclosure - OTHER NOTES TO THE ACCOUNTS (Tables)", "role": "http://www.smith-nephew.com/role/DisclosureOtherNotesToAccountsTables", "shortName": "OTHER NOTES TO THE ACCOUNTS (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ifrs-full:DisclosureOfNotesAndOtherExplanatoryInformationExplanatory", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:DisclosureOfRelatedPartyExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R54": { "firstAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2021_FDdgwptUGU2teenT_k3_fg", "decimals": "-6", "first": true, "lang": null, "name": "ifrs-full:CashAndCashEquivalents", "reportCount": 1, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "40101 - Disclosure - BASIS OF PREPARATION (Details)", "role": "http://www.smith-nephew.com/role/DisclosureBasisOfPreparationDetails", "shortName": "BASIS OF PREPARATION (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "ifrs-full:DisclosureOfEffectOfChangesInForeignExchangeRatesExplanatory", "ifrs-full:DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatory", "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": "2", "lang": null, "name": "ifrs-full:AverageForeignExchangeRate", "reportCount": 1, "unique": true, "unitRef": "Unit_Divide_GBP_USD_fMMTlaj7TU29NdAgPbimrA", "xsiNil": "false" } }, "R55": { "firstAnchor": { "ancestors": [ "snn:NumberOfGlobalFranchiseDivisions", "snn:NumberOfGlobalFranchiseDivisions", "p", "ifrs-full:DisclosureOfEntitysReportableSegmentsExplanatory", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": "INF", "first": true, "lang": null, "name": "snn:NumberOfGlobalFranchiseDivisions", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_item_dlBEH_rQh06umrR6iJNCGQ", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "40201 - Disclosure - BUSINESS SEGMENT INFORMATION (Details)", "role": "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationDetails", "shortName": "BUSINESS SEGMENT INFORMATION (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "snn:NumberOfGlobalFranchiseDivisions", "snn:NumberOfGlobalFranchiseDivisions", "p", "ifrs-full:DisclosureOfEntitysReportableSegmentsExplanatory", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": "INF", "first": true, "lang": null, "name": "snn:NumberOfGlobalFranchiseDivisions", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_item_dlBEH_rQh06umrR6iJNCGQ", "xsiNil": "false" } }, "R56": { "firstAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "snn:DisclosureOfSegmentsProfitReconciliationExplanatory", "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": "-6", "first": true, "lang": null, "name": "snn:CorporateCosts", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "40202 - Disclosure - BUSINESS SEGMENT INFORMATION - Trading and operating profit by business segment (Details)", "role": "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationTradingAndOperatingProfitByBusinessSegmentDetails", "shortName": "BUSINESS SEGMENT INFORMATION - Trading and operating profit by business segment (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "snn:DisclosureOfSegmentsProfitReconciliationExplanatory", "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": "-6", "first": true, "lang": null, "name": "snn:CorporateCosts", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" } }, "R57": { "firstAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "snn:DisclosureOfInformationByGeographicLocationTableTextBlock", "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2021_FDdgwptUGU2teenT_k3_fg", "decimals": "-6", "first": true, "lang": null, "name": "snn:NoncurrentAssetsOtherThanRetirementBenefitAssetsAndDeferredTaxAssets", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "40203 - Disclosure - BUSINESS SEGMENT INFORMATION - Assets and liabilities by business segment and geography (Details)", "role": "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationAssetsAndLiabilitiesByBusinessSegmentAndGeographyDetails", "shortName": "BUSINESS SEGMENT INFORMATION - Assets and liabilities by business segment and geography (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "snn:DisclosureOfInformationByGeographicLocationTableTextBlock", "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2021_FDdgwptUGU2teenT_k3_fg", "decimals": "-6", "first": true, "lang": null, "name": "snn:NoncurrentAssetsOtherThanRetirementBenefitAssetsAndDeferredTaxAssets", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" } }, "R58": { "firstAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": "-6", "first": true, "lang": null, "name": "ifrs-full:RevenueFromContractsWithCustomers", "reportCount": 1, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "40301 - Disclosure - OPERATING PROFIT (Details)", "role": "http://www.smith-nephew.com/role/DisclosureOperatingProfitDetails", "shortName": "OPERATING PROFIT (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "ix:continuation", "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": "-6", "lang": null, "name": "ifrs-full:SalesAndMarketingExpense", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" } }, "R59": { "firstAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "ix:continuation", "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": "-6", "first": true, "lang": null, "name": "ifrs-full:WagesAndSalaries", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "40302 - Disclosure - OPERATING PROFIT - Information about the nature and cost of services (Details)", "role": "http://www.smith-nephew.com/role/DisclosureOperatingProfitInformationAboutNatureAndCostOfServicesDetails", "shortName": "OPERATING PROFIT - Information about the nature and cost of services (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "ix:continuation", "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": "-6", "first": true, "lang": null, "name": "ifrs-full:WagesAndSalaries", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" } }, "R6": { "firstAnchor": { "ancestors": [ "span", "p", "td", "tr", "table", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2018_ifrs-full_ComponentsOfEquityAxis_ifrs-full_IssuedCapitalMember_AB10yb4PNEO_QQj25FJ6bQ", "decimals": "-6", "first": true, "lang": null, "name": "ifrs-full:Equity", "reportCount": 1, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" }, "groupType": "statement", "isDefault": "false", "longName": "00500 - Statement - GROUP STATEMENT OF CHANGES IN EQUITY", "role": "http://www.smith-nephew.com/role/StatementGroupStatementOfChangesInEquity", "shortName": "GROUP STATEMENT OF CHANGES IN EQUITY", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "p", "td", "tr", "table", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2018_ifrs-full_ComponentsOfEquityAxis_ifrs-full_OtherReservesMember_t4bl6IocjkeIQWA1ud4xYQ", "decimals": "-6", "lang": null, "name": "ifrs-full:Equity", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" } }, "R60": { "firstAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": "-6", "first": true, "lang": null, "name": "ifrs-full:FinanceIncome", "reportCount": 1, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "40401 - Disclosure - INTEREST AND OTHER FINANCE COSTS - Interest Income/(expense) (Details)", "role": "http://www.smith-nephew.com/role/DisclosureInterestAndOtherFinanceCostsInterestIncomeExpenseDetails", "shortName": "INTEREST AND OTHER FINANCE COSTS - Interest Income/(expense) (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "ifrs-full:DisclosureOfFinanceIncomeExpenseExplanatory", "snn:DisclosureOfInterestAndOtherFinanceCostsTextBlock", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": "-6", "lang": null, "name": "ifrs-full:InterestExpenseOnBorrowings", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" } }, "R61": { "firstAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "ifrs-full:DisclosureOfFinanceIncomeExpenseExplanatory", "snn:DisclosureOfInterestAndOtherFinanceCostsTextBlock", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": "-6", "first": true, "lang": null, "name": "snn:RetirementBenefitNetInterestExpense", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "40402 - Disclosure - INTEREST AND OTHER FINANCE COSTS - Other Finance Costs (Details)", "role": "http://www.smith-nephew.com/role/DisclosureInterestAndOtherFinanceCostsOtherFinanceCostsDetails", "shortName": "INTEREST AND OTHER FINANCE COSTS - Other Finance Costs (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "ifrs-full:DisclosureOfFinanceIncomeExpenseExplanatory", "snn:DisclosureOfInterestAndOtherFinanceCostsTextBlock", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": "-6", "first": true, "lang": null, "name": "snn:RetirementBenefitNetInterestExpense", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" } }, "R62": { "firstAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "snn:IfrsScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock", "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": "-6", "first": true, "lang": null, "name": "snn:CurrentTaxExpenseIncomeAtApplicableTaxRate", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "40501 - Disclosure - TAXATION - Taxation attributable to the Group (Details)", "role": "http://www.smith-nephew.com/role/DisclosureTaxationTaxationAttributableToGroupDetails", "shortName": "TAXATION - Taxation attributable to the Group (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "snn:IfrsScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock", "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": "-6", "first": true, "lang": null, "name": "snn:CurrentTaxExpenseIncomeAtApplicableTaxRate", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" } }, "R63": { "firstAnchor": { "ancestors": [ "span", "p", "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2021_FDdgwptUGU2teenT_k3_fg", "decimals": "-6", "first": true, "lang": null, "name": "snn:CurrentTaxLiabilitiesUncertainTaxPositionsCurrent", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "40502 - Disclosure - TAXATION - Factors affecting future tax charges (Details)", "role": "http://www.smith-nephew.com/role/DisclosureTaxationFactorsAffectingFutureTaxChargesDetails", "shortName": "TAXATION - Factors affecting future tax charges (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "p", "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2021_FDdgwptUGU2teenT_k3_fg", "decimals": "-6", "first": true, "lang": null, "name": "snn:CurrentTaxLiabilitiesUncertainTaxPositionsCurrent", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" } }, "R64": { "firstAnchor": { "ancestors": [ "span", "p", "td", "tr", "table", "ifrs-full:DisclosureOfDeferredTaxesExplanatory", "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2020_THhWb3hb50WncuQDqKOdsw", "decimals": "-6", "first": true, "lang": null, "name": "ifrs-full:DeferredTaxLiabilityAsset", "reportCount": 1, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "40503 - Disclosure - TAXATION - Deferred taxation (Details)", "role": "http://www.smith-nephew.com/role/DisclosureTaxationDeferredTaxationDetails", "shortName": "TAXATION - Deferred taxation (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "ifrs-full:DisclosureOfDeferredTaxesExplanatory", "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": "-6", "lang": null, "name": "ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesDeferredTaxLiabilityAsset", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" } }, "R65": { "firstAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": "-6", "first": true, "lang": null, "name": "ifrs-full:ProfitLoss", "reportCount": 1, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "40601 - Disclosure - EARNINGS PER ORDINARY SHARE - Calculation of basic, diluted and adjusted earnings per share (Details)", "role": "http://www.smith-nephew.com/role/DisclosureEarningsPerOrdinaryShareCalculationOfBasicDilutedAndAdjustedEarningsPerShareDetails", "shortName": "EARNINGS PER ORDINARY SHARE - Calculation of basic, diluted and adjusted earnings per share (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "ifrs-full:EarningsPerShareExplanatory", "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": "-6", "lang": null, "name": "snn:AcquisitionRelatedCostsRecognisedAsExpenseIncomeForAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombination", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" } }, "R66": { "firstAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "ifrs-full:EarningsPerShareExplanatory", "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": "-6", "first": true, "lang": null, "name": "ifrs-full:WeightedAverageShares", "reportCount": 1, "unitRef": "Unit_Standard_shares_IJLJkPZxmE2p8ZhlkohrPA", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "40602 - Disclosure - EARNINGS PER ORDINARY SHARE - Earnings per ordinary share (Details)", "role": "http://www.smith-nephew.com/role/DisclosureEarningsPerOrdinaryShareEarningsPerOrdinaryShareDetails", "shortName": "EARNINGS PER ORDINARY SHARE - Earnings per ordinary share (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "ifrs-full:EarningsPerShareExplanatory", "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": "3", "lang": null, "name": "snn:AdjustedEarningLossPerShareBasic", "reportCount": 1, "unique": true, "unitRef": "Unit_Divide_USD_shares_i5_27-Qj3EmAa-sQhGFMgw", "xsiNil": "false" } }, "R67": { "firstAnchor": { "ancestors": [ "span", "p", "td", "tr", "table", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2020_THhWb3hb50WncuQDqKOdsw", "decimals": "-6", "first": true, "lang": null, "name": "ifrs-full:PropertyPlantAndEquipment", "reportCount": 1, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "40701 - Disclosure - PROPERTY, PLANT AND EQUIPMENT (Details)", "role": "http://www.smith-nephew.com/role/DisclosurePropertyPlantAndEquipmentDetails", "shortName": "PROPERTY, PLANT AND EQUIPMENT (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "p", "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": "-6", "lang": null, "name": "snn:SoftwareTransferredFromAssetsInCourseOfConstruction", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" } }, "R68": { "firstAnchor": { "ancestors": [ "span", "p", "td", "tr", "table", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2020_THhWb3hb50WncuQDqKOdsw", "decimals": "-6", "first": true, "lang": null, "name": "ifrs-full:Goodwill", "reportCount": 1, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "40801 - Disclosure - GOODWILL (Details)", "role": "http://www.smith-nephew.com/role/DisclosureGoodwillDetails", "shortName": "GOODWILL (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "p", "ifrs-full:DisclosureOfReconciliationOfChangesInGoodwillExplanatory", "ifrs-full:DisclosureOfGoodwillExplanatory", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2021_FDdgwptUGU2teenT_k3_fg", "decimals": "INF", "lang": null, "name": "snn:NumberOfCashGeneratingUnits", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_item_dlBEH_rQh06umrR6iJNCGQ", "xsiNil": "false" } }, "R69": { "firstAnchor": { "ancestors": [ "span", "p", "td", "tr", "table", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2020_THhWb3hb50WncuQDqKOdsw", "decimals": "-6", "first": true, "lang": null, "name": "ifrs-full:IntangibleAssetsOtherThanGoodwill", "reportCount": 1, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "40901 - Disclosure - INTANGIBLE ASSETS (Details)", "role": "http://www.smith-nephew.com/role/DisclosureIntangibleAssetsDetails", "shortName": "INTANGIBLE ASSETS (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "ix:continuation", "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": "-6", "lang": null, "name": "ifrs-full:DepreciationAmortisationAndImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" } }, "R7": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2021_FDdgwptUGU2teenT_k3_fg", "decimals": "-6", "first": true, "lang": null, "name": "ifrs-full:ReserveOfExchangeDifferencesOnTranslation", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" }, "groupType": "statement", "isDefault": "false", "longName": "00505 - Statement - GROUP STATEMENT OF CHANGES IN EQUITY (Parenthetical)", "role": "http://www.smith-nephew.com/role/StatementGroupStatementOfChangesInEquityParenthetical", "shortName": "GROUP STATEMENT OF CHANGES IN EQUITY (Parenthetical)", "subGroupType": "parenthetical", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2021_FDdgwptUGU2teenT_k3_fg", "decimals": "-6", "first": true, "lang": null, "name": "ifrs-full:ReserveOfExchangeDifferencesOnTranslation", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" } }, "R70": { "firstAnchor": { "ancestors": [ "span", "p", "td", "tr", "table", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2020_THhWb3hb50WncuQDqKOdsw", "decimals": "-6", "first": true, "lang": null, "name": "ifrs-full:NoncurrentFinancialAssetsAvailableforsale", "reportCount": 1, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "41001 - Disclosure - INVESTMENTS (Details)", "role": "http://www.smith-nephew.com/role/DisclosureInvestmentsDetails", "shortName": "INVESTMENTS (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "p", "td", "tr", "table", "ifrs-full:DisclosureOfDetailedInformationAboutFinancialInstrumentsExplanatory", "ifrs-full:DisclosureOfFinancialInstrumentsAtFairValueThroughProfitOrLossExplanatory", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2019_ifrs-full_CategoriesOfFinancialAssetsAxis_ifrs-full_FinancialAssetsAtFairValueThroughOtherComprehensiveIncomeCategoryMember_H3Glxe2-t060k12ZgVyTgQ", "decimals": "-6", "lang": null, "name": "ifrs-full:NoncurrentFinancialAssetsAvailableforsale", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" } }, "R71": { "firstAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2021_FDdgwptUGU2teenT_k3_fg", "decimals": "-6", "first": true, "lang": null, "name": "ifrs-full:InvestmentsInAssociatesAccountedForUsingEquityMethod", "reportCount": 1, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "41101 - Disclosure - INVESTMENTS IN ASSOCIATES - Amounts recognised in the balance sheet and income statement (Details)", "role": "http://www.smith-nephew.com/role/DisclosureInvestmentsInAssociatesAmountsRecognisedInBalanceSheetAndIncomeStatementDetails", "shortName": "INVESTMENTS IN ASSOCIATES - Amounts recognised in the balance sheet and income statement (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "p", "ifrs-full:DisclosureOfInterestsInAssociatesExplanatory", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_ifrs-full_SignificantInvestmentsInAssociatesAxis_snn_BioventusLlcMember_CH_l5PKRbUCtbzjY6NjzhA", "decimals": "-6", "lang": null, "name": "snn:ProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" } }, "R72": { "firstAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": "-6", "first": true, "lang": null, "name": "ifrs-full:RevenueFromContractsWithCustomers", "reportCount": 1, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "41102 - Disclosure - INVESTMENTS IN ASSOCIATES - Summarised statement of comprehensive income (Details)", "role": "http://www.smith-nephew.com/role/DisclosureInvestmentsInAssociatesSummarisedStatementOfComprehensiveIncomeDetails", "shortName": "INVESTMENTS IN ASSOCIATES - Summarised statement of comprehensive income (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "ifrs-full:DisclosureOfSignificantInvestmentsInAssociatesExplanatory", "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_ifrs-full_SignificantInvestmentsInAssociatesAxis_snn_BioventusLlcMember_CH_l5PKRbUCtbzjY6NjzhA", "decimals": "-6", "lang": null, "name": "ifrs-full:RevenueFromContractsWithCustomers", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" } }, "R73": { "firstAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2021_FDdgwptUGU2teenT_k3_fg", "decimals": "-6", "first": true, "lang": null, "name": "ifrs-full:NoncurrentAssets", "reportCount": 1, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "41103 - Disclosure - INVESTMENTS IN ASSOCIATES - Summarised balance sheet (Details)", "role": "http://www.smith-nephew.com/role/DisclosureInvestmentsInAssociatesSummarisedBalanceSheetDetails", "shortName": "INVESTMENTS IN ASSOCIATES - Summarised balance sheet (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "p", "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2020_THhWb3hb50WncuQDqKOdsw", "decimals": "INF", "lang": null, "name": "snn:NumberOfAssociates", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_item_dlBEH_rQh06umrR6iJNCGQ", "xsiNil": "false" } }, "R74": { "firstAnchor": { "ancestors": [ "p", "ifrs-full:DescriptionOfAccountingPolicyForMeasuringInventories", "ifrs-full:DisclosureOfInventoriesExplanatory", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "snn:PeriodOfTimeOnMarketForInventoryAdjustmentFormula", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "41201 - Disclosure - INVENTORIES (Details)", "role": "http://www.smith-nephew.com/role/DisclosureInventoriesDetails", "shortName": "INVENTORIES (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "p", "ifrs-full:DescriptionOfAccountingPolicyForMeasuringInventories", "ifrs-full:DisclosureOfInventoriesExplanatory", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "snn:PeriodOfTimeOnMarketForInventoryAdjustmentFormula", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R75": { "firstAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "snn:DisclosureOfDetailsOfTradeAndOtherReceivablesExplanatory", "ifrs-full:DisclosureOfTradeAndOtherReceivablesExplanatory", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2021_FDdgwptUGU2teenT_k3_fg", "decimals": "-6", "first": true, "lang": null, "name": "snn:TradeReceivablesGrossCurrent", "reportCount": 1, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "41301 - Disclosure - TRADE AND OTHER RECEIVABLES (Details)", "role": "http://www.smith-nephew.com/role/DisclosureTradeAndOtherReceivablesDetails", "shortName": "TRADE AND OTHER RECEIVABLES (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "snn:DisclosureOfDetailsOfTradeAndOtherReceivablesExplanatory", "ifrs-full:DisclosureOfTradeAndOtherReceivablesExplanatory", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2021_FDdgwptUGU2teenT_k3_fg", "decimals": "-6", "lang": null, "name": "ifrs-full:CurrentDerivativeFinancialAssets", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" } }, "R76": { "firstAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "snn:DisclosureOfDetailsOfTradeAndOtherReceivablesExplanatory", "ifrs-full:DisclosureOfTradeAndOtherReceivablesExplanatory", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2021_FDdgwptUGU2teenT_k3_fg", "decimals": "-6", "first": true, "lang": null, "name": "snn:ProvisionForDoubtfulTradeReceivables", "reportCount": 1, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "41302 - Disclosure - TRADE AND OTHER RECEIVABLES - Trade receivables past due (Details)", "role": "http://www.smith-nephew.com/role/DisclosureTradeAndOtherReceivablesTradeReceivablesPastDueDetails", "shortName": "TRADE AND OTHER RECEIVABLES - Trade receivables past due (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "snn:DisclosureOfNetTradeReceivablesExplanatory", "ifrs-full:DisclosureOfTradeAndOtherReceivablesExplanatory", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2021_ifrs-full_PastDueStatusAxis_snn_LaterThanOneMonthMember_YG4GQ1O67EOT2xZcoNJ7cQ", "decimals": "-6", "lang": null, "name": "snn:TradeReceivablesGrossCurrent", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" } }, "R77": { "firstAnchor": { "ancestors": [ "span", "p", "td", "tr", "table", "snn:DisclosureOfNetTradeReceivablesExplanatory", "ifrs-full:DisclosureOfTradeAndOtherReceivablesExplanatory", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2020_THhWb3hb50WncuQDqKOdsw", "decimals": "-6", "first": true, "lang": null, "name": "snn:ProvisionForDoubtfulTradeReceivables", "reportCount": 1, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "41303 - Disclosure - TRADE AND OTHER RECEIVABLES - Movements in the provision for bad and doubtful debts (Details)", "role": "http://www.smith-nephew.com/role/DisclosureTradeAndOtherReceivablesMovementsInProvisionForBadAndDoubtfulDebtsDetails", "shortName": "TRADE AND OTHER RECEIVABLES - Movements in the provision for bad and doubtful debts (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "snn:DisclosureOfMovementInLossAllowanceReceivablesExplanatoryTableTextBlock", "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": "-6", "lang": null, "name": "snn:IncreaseDecreaseInProvisionForDoubtfulAccountsForCurrencyTranslation", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" } }, "R78": { "firstAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "snn:DisclosureOfDetailsOfTradeAndOtherReceivablesExplanatory", "ifrs-full:DisclosureOfTradeAndOtherReceivablesExplanatory", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2021_FDdgwptUGU2teenT_k3_fg", "decimals": "-6", "first": true, "lang": null, "name": "ifrs-full:CurrentTradeReceivables", "reportCount": 1, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "41304 - Disclosure - TRADE AND OTHER RECEIVABLES - Trade receivables denominated in major currencies (Details)", "role": "http://www.smith-nephew.com/role/DisclosureTradeAndOtherReceivablesTradeReceivablesDenominatedInMajorCurrenciesDetails", "shortName": "TRADE AND OTHER RECEIVABLES - Trade receivables denominated in major currencies (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "snn:DisclosureOfNetTradeReceivablesByCurrencyExplanatory", "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2021_srt_CurrencyAxis_currency_USD_k9X7LoUoC06eupcXyDWfRg", "decimals": "-6", "lang": null, "name": "ifrs-full:CurrentTradeReceivables", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" } }, "R79": { "firstAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "snn:DisclosureOfDetailsOfTradeAndOtherPayablesTableTextBlock", "ifrs-full:DisclosureOfTradeAndOtherPayablesExplanatory", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2021_FDdgwptUGU2teenT_k3_fg", "decimals": "-6", "first": true, "lang": null, "name": "snn:TradeAndOtherPayablesCurrentExcludingDerivativesAndAcquisitionConsideration", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "41401 - Disclosure - TRADE AND OTHER PAYABLES (Details)", "role": "http://www.smith-nephew.com/role/DisclosureTradeAndOtherPayablesDetails", "shortName": "TRADE AND OTHER PAYABLES (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "snn:DisclosureOfDetailsOfTradeAndOtherPayablesTableTextBlock", "ifrs-full:DisclosureOfTradeAndOtherPayablesExplanatory", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2021_FDdgwptUGU2teenT_k3_fg", "decimals": "-6", "first": true, "lang": null, "name": "snn:TradeAndOtherPayablesCurrentExcludingDerivativesAndAcquisitionConsideration", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" } }, "R8": { "firstAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:DisclosureOfBasisOfPreparationOfFinancialStatementsExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "10101 - Disclosure - BASIS OF PREPARATION", "role": "http://www.smith-nephew.com/role/DisclosureBasisOfPreparation", "shortName": "BASIS OF PREPARATION", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:DisclosureOfBasisOfPreparationOfFinancialStatementsExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R80": { "firstAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "snn:DisclosureOfNetDebtTableTextBlock", "ifrs-full:DisclosureOfBorrowingsExplanatory", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2021_FDdgwptUGU2teenT_k3_fg", "decimals": "-6", "first": true, "lang": null, "name": "ifrs-full:ShorttermBorrowings", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "41501 - Disclosure - CASH AND BORROWINGS - Net debt (Details)", "role": "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsNetDebtDetails", "shortName": "CASH AND BORROWINGS - Net debt (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "snn:DisclosureOfNetDebtTableTextBlock", "ifrs-full:DisclosureOfBorrowingsExplanatory", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2021_FDdgwptUGU2teenT_k3_fg", "decimals": "-6", "first": true, "lang": null, "name": "ifrs-full:ShorttermBorrowings", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" } }, "R81": { "firstAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "snn:DisclosureOfBorrowingRepayableTableTextBlock", "ifrs-full:DisclosureOfBorrowingsExplanatory", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2021_FDdgwptUGU2teenT_k3_fg", "decimals": "-6", "first": true, "lang": null, "name": "ifrs-full:LoansReceived", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "41502 - Disclosure - CASH AND BORROWINGS - Borrowings are repayable (Details)", "role": "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsBorrowingsAreRepayableDetails", "shortName": "CASH AND BORROWINGS - Borrowings are repayable (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "snn:DisclosureOfBorrowingRepayableTableTextBlock", "ifrs-full:DisclosureOfBorrowingsExplanatory", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2021_FDdgwptUGU2teenT_k3_fg", "decimals": "-6", "first": true, "lang": null, "name": "ifrs-full:LoansReceived", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" } }, "R82": { "firstAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "snn:DisclosureOfNetDebtTableTextBlock", "ifrs-full:DisclosureOfBorrowingsExplanatory", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2021_FDdgwptUGU2teenT_k3_fg", "decimals": "-6", "first": true, "lang": null, "name": "ifrs-full:Borrowings", "reportCount": 1, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "41503 - Disclosure - CASH AND BORROWINGS - Liquidity risk exposures (Details)", "role": "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsLiquidityRiskExposuresDetails", "shortName": "CASH AND BORROWINGS - Liquidity risk exposures (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "p", "td", "tr", "table", "ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsExplanatory", "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2021_ifrs-full_BorrowingsByNameAxis_snn_SeniorNotesMaturingJanuary2022Member_NqAAd2wbnUiYtGMOK7-9ZQ", "decimals": "-6", "lang": null, "name": "ifrs-full:NotionalAmount", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" } }, "R83": { "firstAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "snn:DisclosureOfMaturityAnalysisOfFinancialLiabilitiesTableTextBlock", "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2021_FDdgwptUGU2teenT_k3_fg", "decimals": "-6", "first": true, "lang": null, "name": "ifrs-full:BankBorrowingsUndiscountedCashFlows", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "41504 - Disclosure - CASH AND BORROWINGS - Year end financial liabilities by contractual maturity (Details)", "role": "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsYearEndFinancialLiabilitiesByContractualMaturityDetails", "shortName": "CASH AND BORROWINGS - Year end financial liabilities by contractual maturity (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "snn:DisclosureOfMaturityAnalysisOfFinancialLiabilitiesTableTextBlock", "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2021_FDdgwptUGU2teenT_k3_fg", "decimals": "-6", "first": true, "lang": null, "name": "ifrs-full:BankBorrowingsUndiscountedCashFlows", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" } }, "R84": { "firstAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2021_FDdgwptUGU2teenT_k3_fg", "decimals": "-6", "first": true, "lang": null, "name": "ifrs-full:CashAndCashEquivalents", "reportCount": 1, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "41505 - Disclosure - CASH AND BORROWINGS - Liquidity and capital resources (Details)", "role": "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsLiquidityAndCapitalResourcesDetails", "shortName": "CASH AND BORROWINGS - Liquidity and capital resources (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "p", "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2021_ifrs-full_BorrowingsByNameAxis_snn_CommittedBorrowingFacilitiesMember_clPlhPpEKEuvYkLsJIKenw", "decimals": "-6", "lang": null, "name": "snn:IfrsLineOfCredit", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" } }, "R85": { "firstAnchor": { "ancestors": [ "p", "ix:continuation", "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2021_FDdgwptUGU2teenT_k3_fg", "decimals": "INF", "first": true, "lang": null, "name": "snn:NumberOfCountriesCompanyOperatesIn", "reportCount": 1, "unitRef": "Unit_Standard_item_dlBEH_rQh06umrR6iJNCGQ", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "41601 - Disclosure - FINANCIAL INSTRUMENTS AND RISK MANAGEMENT - Foreign Exchange Exposures (Details)", "role": "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementForeignExchangeExposuresDetails", "shortName": "FINANCIAL INSTRUMENTS AND RISK MANAGEMENT - Foreign Exchange Exposures (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "p", "ifrs-full:DisclosureOfFinancialRiskManagementExplanatory", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_ifrs-full_ClassesOfFinancialInstrumentsAxis_ifrs-full_ForwardContractMember_4mffVhbYeku-ujg8D7iAuQ", "decimals": null, "lang": "en-US", "name": "snn:HedgeInstrumentTerm", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R86": { "firstAnchor": { "ancestors": [ "p", "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2021_ifrs-full_BorrowingsByNameAxis_snn_IfrsRevolvingCreditFacilityMember_PRou2IoJfEifhrdNv7iCcA", "decimals": "-6", "first": true, "lang": null, "name": "snn:IfrsLineOfCreditFacilityMaximumBorrowingCapacity", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "41602 - Disclosure - FINANCIAL INSTRUMENTS AND RISK MANAGEMENT - Interest Rate Exposures (Details)", "role": "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementInterestRateExposuresDetails", "shortName": "FINANCIAL INSTRUMENTS AND RISK MANAGEMENT - Interest Rate Exposures (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "p", "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2021_ifrs-full_BorrowingsByNameAxis_snn_IfrsRevolvingCreditFacilityMember_PRou2IoJfEifhrdNv7iCcA", "decimals": "-6", "first": true, "lang": null, "name": "snn:IfrsLineOfCreditFacilityMaximumBorrowingCapacity", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" } }, "R87": { "firstAnchor": { "ancestors": [ "span", "p", "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2021_ifrs-full_ClassesOfFinancialAssetsAxis_ifrs-full_DerivativesMember_ifrs-full_TypesOfRisksAxis_ifrs-full_CreditRiskMember_rJ3GgS6bekOXfGy7nFLE-g", "decimals": "-6", "first": true, "lang": null, "name": "ifrs-full:MaximumExposureToCreditRisk", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "41603 - Disclosure - FINANCIAL INSTRUMENTS AND RISK MANAGEMENT - Credit Risk Exposures (Details)", "role": "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementCreditRiskExposuresDetails", "shortName": "FINANCIAL INSTRUMENTS AND RISK MANAGEMENT - Credit Risk Exposures (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "p", "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2021_ifrs-full_ClassesOfFinancialAssetsAxis_ifrs-full_DerivativesMember_ifrs-full_TypesOfRisksAxis_ifrs-full_CreditRiskMember_rJ3GgS6bekOXfGy7nFLE-g", "decimals": "-6", "first": true, "lang": null, "name": "ifrs-full:MaximumExposureToCreditRisk", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" } }, "R88": { "firstAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "ifrs-full:DisclosureOfDetailedInformationAboutHedgingInstrumentsExplanatory", "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2021_ifrs-full_ClassesOfFinancialInstrumentsAxis_ifrs-full_ForwardContractMember_ifrs-full_TypesOfHedgesAxis_ifrs-full_CashFlowHedgesMember_ifrs-full_TypesOfRisksAxis_ifrs-full_CurrencyRiskMember_yRIIJTL0f0SUDbgmTGA03A", "decimals": "-6", "first": true, "lang": null, "name": "ifrs-full:NominalAmountOfHedgingInstrument", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "41604 - Disclosure - FINANCIAL INSTRUMENTS AND RISK MANAGEMENT - Hedge (Details)", "role": "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementHedgeDetails", "shortName": "FINANCIAL INSTRUMENTS AND RISK MANAGEMENT - Hedge (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "ifrs-full:DisclosureOfDetailedInformationAboutHedgingInstrumentsExplanatory", "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2021_ifrs-full_ClassesOfFinancialInstrumentsAxis_ifrs-full_ForwardContractMember_ifrs-full_TypesOfHedgesAxis_ifrs-full_CashFlowHedgesMember_ifrs-full_TypesOfRisksAxis_ifrs-full_CurrencyRiskMember_yRIIJTL0f0SUDbgmTGA03A", "decimals": "-6", "first": true, "lang": null, "name": "ifrs-full:NominalAmountOfHedgingInstrument", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" } }, "R89": { "firstAnchor": { "ancestors": [ "span", "p", "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2021_ifrs-full_BorrowingsByNameAxis_snn_TermLoanMember_ifrs-full_TypesOfHedgesAxis_ifrs-full_HedgesOfNetInvestmentInForeignOperationsMember_ifrs-full_TypesOfRisksAxis_ifrs-full_CurrencyRiskMember_mCkfzGj5k0e6WieldMxrqg", "decimals": "-6", "first": true, "lang": null, "name": "ifrs-full:NotionalAmount", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "41605 - Disclosure - FINANCIAL INSTRUMENTS AND RISK MANAGEMENT - Net investment hedge (Details)", "role": "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementNetInvestmentHedgeDetails", "shortName": "FINANCIAL INSTRUMENTS AND RISK MANAGEMENT - Net investment hedge (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "p", "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2021_ifrs-full_BorrowingsByNameAxis_snn_TermLoanMember_ifrs-full_TypesOfHedgesAxis_ifrs-full_HedgesOfNetInvestmentInForeignOperationsMember_ifrs-full_TypesOfRisksAxis_ifrs-full_CurrencyRiskMember_mCkfzGj5k0e6WieldMxrqg", "decimals": "-6", "first": true, "lang": null, "name": "ifrs-full:NotionalAmount", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" } }, "R9": { "firstAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:DisclosureOfEntitysReportableSegmentsExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "10201 - Disclosure - BUSINESS SEGMENT INFORMATION", "role": "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformation", "shortName": "BUSINESS SEGMENT INFORMATION", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "first": true, "lang": "en-US", "name": "ifrs-full:DisclosureOfEntitysReportableSegmentsExplanatory", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R90": { "firstAnchor": { "ancestors": [ "span", "p", "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2021_FDdgwptUGU2teenT_k3_fg", "decimals": "-6", "first": true, "lang": null, "name": "ifrs-full:LiabilitiesIncurred", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "41606 - Disclosure - FINANCIAL INSTRUMENTS AND RISK MANAGEMENT - Interest Bearing Liabilities (Details)", "role": "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementInterestBearingLiabilitiesDetails", "shortName": "FINANCIAL INSTRUMENTS AND RISK MANAGEMENT - Interest Bearing Liabilities (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "p", "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2021_FDdgwptUGU2teenT_k3_fg", "decimals": "-6", "first": true, "lang": null, "name": "ifrs-full:LiabilitiesIncurred", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" } }, "R91": { "firstAnchor": { "ancestors": [ "span", "p", "td", "tr", "table", "ifrs-full:DisclosureOfFinancialAssetsExplanatory", "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2020_ifrs-full_ClassesOfFinancialAssetsAxis_ifrs-full_InterestRateSwapContractMember_NUIKfzinrkiTzJ9K7vkjQw", "decimals": "-6", "first": true, "lang": null, "name": "ifrs-full:FinancialAssets", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "41607 - Disclosure - FINANCIAL INSTRUMENTS AND RISK MANAGEMENT - Interest Bearing Assets (Details)", "role": "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementInterestBearingAssetsDetails", "shortName": "FINANCIAL INSTRUMENTS AND RISK MANAGEMENT - Interest Bearing Assets (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "p", "td", "tr", "table", "ifrs-full:DisclosureOfFinancialAssetsExplanatory", "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2020_ifrs-full_ClassesOfFinancialAssetsAxis_ifrs-full_InterestRateSwapContractMember_NUIKfzinrkiTzJ9K7vkjQw", "decimals": "-6", "first": true, "lang": null, "name": "ifrs-full:FinancialAssets", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" } }, "R92": { "firstAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2021_FDdgwptUGU2teenT_k3_fg", "decimals": "-6", "first": true, "lang": null, "name": "ifrs-full:Assets", "reportCount": 1, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "41608 - Disclosure - FINANCIAL INSTRUMENTS AND RISK MANAGEMENT - Fair Value (Details)", "role": "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementFairValueDetails", "shortName": "FINANCIAL INSTRUMENTS AND RISK MANAGEMENT - Fair Value (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "ifrs-full:TransfersOutOfLevel1IntoLevel2OfFairValueHierarchyAssets", "p", "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": "-6", "lang": null, "name": "ifrs-full:TransfersOutOfLevel1IntoLevel2OfFairValueHierarchyAssets", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" } }, "R93": { "firstAnchor": { "ancestors": [ "span", "p", "td", "tr", "table", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2020_THhWb3hb50WncuQDqKOdsw", "decimals": "-6", "first": true, "lang": null, "name": "ifrs-full:Assets", "reportCount": 1, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "41609 - Disclosure - FINANCIAL INSTRUMENTS AND RISK MANAGEMENT - Movement of financial instruments (Details)", "role": "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementMovementOfFinancialInstrumentsDetails", "shortName": "FINANCIAL INSTRUMENTS AND RISK MANAGEMENT - Movement of financial instruments (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "p", "td", "tr", "table", "snn:DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsAndLiabilitiesTableTextBlock", "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2019_ifrs-full_ClassesOfLiabilitiesAxis_snn_AcquisitionConsiderationLiabilityMember_ifrs-full_LevelsOfFairValueHierarchyAxis_ifrs-full_Level3OfFairValueHierarchyMember_fjUBur6GiUeR3VgKlIxySQ", "decimals": "-6", "lang": null, "name": "ifrs-full:Liabilities", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" } }, "R94": { "firstAnchor": { "ancestors": [ "span", "p", "td", "tr", "table", "ifrs-full:DisclosureOfOtherProvisionsExplanatory", "ifrs-full:DisclosureOfOtherProvisionsContingentLiabilitiesAndContingentAssetsExplanatory", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2020_THhWb3hb50WncuQDqKOdsw", "decimals": "-6", "first": true, "lang": null, "name": "ifrs-full:Provisions", "reportCount": 1, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "41701 - Disclosure - PROVISIONS AND CONTINGENCIES - Changes in provisions (Details)", "role": "http://www.smith-nephew.com/role/DisclosureProvisionsAndContingenciesChangesInProvisionsDetails", "shortName": "PROVISIONS AND CONTINGENCIES - Changes in provisions (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "ifrs-full:DisclosureOfOtherProvisionsExplanatory", "ifrs-full:DisclosureOfOtherProvisionsContingentLiabilitiesAndContingentAssetsExplanatory", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": "-6", "lang": null, "name": "ifrs-full:AdditionalProvisionsOtherProvisions", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" } }, "R95": { "firstAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2021_FDdgwptUGU2teenT_k3_fg", "decimals": "-6", "first": true, "lang": null, "name": "ifrs-full:CurrentProvisions", "reportCount": 1, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "41702 - Disclosure - PROVISIONS AND CONTINGENCIES - Current and non-current provisions (Details)", "role": "http://www.smith-nephew.com/role/DisclosureProvisionsAndContingenciesCurrentAndNonCurrentProvisionsDetails", "shortName": "PROVISIONS AND CONTINGENCIES - Current and non-current provisions (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "p", "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": null, "lang": "en-US", "name": "snn:TermOfExpectedProvisionUtilisation", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R96": { "firstAnchor": { "ancestors": [ "p", "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2021_ifrs-full_ClassesOfProvisionsAxis_snn_MetalOnMetalHipClaimsProvisionMember_fFwO-kuiDk-ZVnlqp4NgPw", "decimals": "INF", "first": true, "lang": null, "name": "snn:NumberOfLitigationSettlementClaimsOutstanding", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_item_dlBEH_rQh06umrR6iJNCGQ", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "41704 - Disclosure - PROVISIONS AND CONTINGENCIES - Legal proceedings (Details)", "role": "http://www.smith-nephew.com/role/DisclosureProvisionsAndContingenciesLegalProceedingsDetails", "shortName": "PROVISIONS AND CONTINGENCIES - Legal proceedings (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "p", "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2021_ifrs-full_ClassesOfProvisionsAxis_snn_MetalOnMetalHipClaimsProvisionMember_fFwO-kuiDk-ZVnlqp4NgPw", "decimals": "INF", "first": true, "lang": null, "name": "snn:NumberOfLitigationSettlementClaimsOutstanding", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_item_dlBEH_rQh06umrR6iJNCGQ", "xsiNil": "false" } }, "R97": { "firstAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2021_FDdgwptUGU2teenT_k3_fg", "decimals": "-6", "first": true, "lang": null, "name": "ifrs-full:NoncurrentRecognisedLiabilitiesDefinedBenefitPlan", "reportCount": 1, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "41801 - Disclosure - RETIREMENT BENEFIT OBLIGATIONS (Details)", "role": "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsDetails", "shortName": "RETIREMENT BENEFIT OBLIGATIONS (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "ifrs-full:DisclosureOfDefinedBenefitPlansExplanatory", "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2021_ifrs-full_FundingArrangementsOfDefinedBenefitPlansAxis_ifrs-full_WhollyUnfundedDefinedBenefitPlansMember_7IRb0p_Zt0OqQ9HI5lHxZg", "decimals": "-6", "lang": null, "name": "snn:DefinedBenefitObligationAtPresentValueUnfundedPortion", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" } }, "R98": { "firstAnchor": { "ancestors": [ "span", "p", "td", "tr", "table", "ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetExplanatory", "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2020_THhWb3hb50WncuQDqKOdsw", "decimals": "-6", "first": true, "lang": null, "name": "ifrs-full:LiabilityAssetOfDefinedBenefitPlans", "reportCount": 1, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "41802 - Disclosure - RETIREMENT BENEFIT OBLIGATIONS - Reconciliation of benefit obligations and pension assets (Details)", "role": "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsReconciliationOfBenefitObligationsAndPensionAssetsDetails", "shortName": "RETIREMENT BENEFIT OBLIGATIONS - Reconciliation of benefit obligations and pension assets (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetExplanatory", "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "Duration_1_1_2021_To_12_31_2021_v9XPP_if-USKuFg3TS_4gA", "decimals": "-6", "lang": null, "name": "ifrs-full:CurrentServiceCostNetDefinedBenefitLiabilityAsset", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" } }, "R99": { "firstAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "ifrs-full:DisclosureOfFairValueOfPlanAssetsExplanatory", "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2021_FDdgwptUGU2teenT_k3_fg", "decimals": "-6", "first": true, "lang": null, "name": "ifrs-full:PlanAssetsAtFairValue", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "41803 - Disclosure - RETIREMENT BENEFIT OBLIGATIONS - Plan assets (Details)", "role": "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsPlanAssetsDetails", "shortName": "RETIREMENT BENEFIT OBLIGATIONS - Plan assets (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "b", "p", "td", "tr", "table", "ifrs-full:DisclosureOfFairValueOfPlanAssetsExplanatory", "ix:continuation", "div", "div", "body", "html" ], "baseRef": "snn-20211231x20f.htm", "contextRef": "As_Of_12_31_2021_FDdgwptUGU2teenT_k3_fg", "decimals": "-6", "first": true, "lang": null, "name": "ifrs-full:PlanAssetsAtFairValue", "reportCount": 1, "unique": true, "unitRef": "Unit_Standard_USD_kuSIY47wnUSe-_fZTfI38Q", "xsiNil": "false" } } }, "segmentCount": 192, "tag": { "country_CH": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "China" } } }, "localname": "CH", "nsuri": "http://xbrl.sec.gov/country/2021", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationDetails" ], "xbrltype": "domainItemType" }, "country_GB": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "United Kingdom" } } }, "localname": "GB", "nsuri": "http://xbrl.sec.gov/country/2021", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationAssetsAndLiabilitiesByBusinessSegmentAndGeographyDetails", "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationDetails", "http://www.smith-nephew.com/role/DisclosureOperatingProfitInformationAboutNatureAndCostOfServicesDetails", "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsDetails", "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsPlanAssetsDetails", "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsPrincipalActuarialAssumptionsDetails", "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsReconciliationOfBenefitObligationsAndPensionAssetsDetails", "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsSensitivityAnalysisDetails" ], "xbrltype": "domainItemType" }, "country_US": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "United States of America" } } }, "localname": "US", "nsuri": "http://xbrl.sec.gov/country/2021", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationAssetsAndLiabilitiesByBusinessSegmentAndGeographyDetails", "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationDetails", "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsDetails", "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsPlanAssetsDetails", "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsPrincipalActuarialAssumptionsDetails", "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsReconciliationOfBenefitObligationsAndPensionAssetsDetails", "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsSensitivityAnalysisDetails" ], "xbrltype": "domainItemType" }, "currency_AllCurrenciesDomain": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "All Currencies [Domain]" } } }, "localname": "AllCurrenciesDomain", "nsuri": "http://xbrl.sec.gov/currency/2021", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementForeignExchangeExposuresDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementInterestBearingAssetsDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementInterestBearingLiabilitiesDetails", "http://www.smith-nephew.com/role/DisclosureTradeAndOtherReceivablesTradeReceivablesDenominatedInMajorCurrenciesDetails" ], "xbrltype": "domainItemType" }, "currency_EUR": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Euro" } } }, "localname": "EUR", "nsuri": "http://xbrl.sec.gov/currency/2021", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementForeignExchangeExposuresDetails", "http://www.smith-nephew.com/role/DisclosureTradeAndOtherReceivablesTradeReceivablesDenominatedInMajorCurrenciesDetails" ], "xbrltype": "domainItemType" }, "currency_GBP": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Sterling" } } }, "localname": "GBP", "nsuri": "http://xbrl.sec.gov/currency/2021", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTradeAndOtherReceivablesTradeReceivablesDenominatedInMajorCurrenciesDetails" ], "xbrltype": "domainItemType" }, "currency_USD": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "US Dollar" } } }, "localname": "USD", "nsuri": "http://xbrl.sec.gov/currency/2021", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementForeignExchangeExposuresDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementInterestBearingAssetsDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementInterestBearingLiabilitiesDetails", "http://www.smith-nephew.com/role/DisclosureTradeAndOtherReceivablesTradeReceivablesDenominatedInMajorCurrenciesDetails" ], "xbrltype": "domainItemType" }, "dei_AddressTypeDomain": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "An entity may have several addresses for different purposes and this domain represents all such types.", "label": "Address Type [Domain]" } } }, "localname": "AddressTypeDomain", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.smith-nephew.com/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "domainItemType" }, "dei_AdrMember": { "auth_ref": [ "r396" ], "lang": { "en-us": { "role": { "documentation": "American Depositary Receipt (or American Depositary Share, ADS).", "label": "American Depositary Shares" } } }, "localname": "AdrMember", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.smith-nephew.com/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "domainItemType" }, "dei_AmendmentFlag": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Boolean flag that is true when the XBRL content amends previously-filed or accepted submission.", "label": "Amendment Flag" } } }, "localname": "AmendmentFlag", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.smith-nephew.com/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "booleanItemType" }, "dei_AuditorFirmId": { "auth_ref": [ "r397", "r398", "r399" ], "lang": { "en-us": { "role": { "documentation": "PCAOB issued Audit Firm Identifier", "label": "Auditor Firm ID" } } }, "localname": "AuditorFirmId", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.smith-nephew.com/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "nonemptySequenceNumberItemType" }, "dei_AuditorLocation": { "auth_ref": [ "r397", "r398", "r399" ], "lang": { "en-us": { "role": { "label": "Auditor Location" } } }, "localname": "AuditorLocation", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.smith-nephew.com/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "internationalNameItemType" }, "dei_AuditorName": { "auth_ref": [ "r397", "r398", "r399" ], "lang": { "en-us": { "role": { "label": "Auditor Name" } } }, "localname": "AuditorName", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.smith-nephew.com/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "internationalNameItemType" }, "dei_BusinessContactMember": { "auth_ref": [ "r398", "r399" ], "lang": { "en-us": { "role": { "documentation": "Business contact for the entity", "label": "Business Contact [Member]" } } }, "localname": "BusinessContactMember", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.smith-nephew.com/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "domainItemType" }, "dei_CityAreaCode": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Area code of city", "label": "City Area Code" } } }, "localname": "CityAreaCode", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.smith-nephew.com/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "normalizedStringItemType" }, "dei_ContactPersonnelEmailAddress": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Email address of contact personnel.", "label": "Contact Personnel Email Address" } } }, "localname": "ContactPersonnelEmailAddress", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.smith-nephew.com/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "normalizedStringItemType" }, "dei_ContactPersonnelName": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Name of contact personnel", "label": "Contact Personnel Name" } } }, "localname": "ContactPersonnelName", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.smith-nephew.com/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "normalizedStringItemType" }, "dei_CoverAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Cover page.", "label": "Document and Entity Information" } } }, "localname": "CoverAbstract", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "xbrltype": "stringItemType" }, "dei_CurrentFiscalYearEndDate": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "End date of current fiscal year in the format --MM-DD.", "label": "Current Fiscal Year End Date" } } }, "localname": "CurrentFiscalYearEndDate", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.smith-nephew.com/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "gMonthDayItemType" }, "dei_DocumentAccountingStandard": { "auth_ref": [ "r398" ], "lang": { "en-us": { "role": { "documentation": "The basis of accounting the registrant has used to prepare the financial statements included in this filing This can either be 'U.S. GAAP', 'International Financial Reporting Standards', or 'Other'.", "label": "Document Accounting Standard" } } }, "localname": "DocumentAccountingStandard", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.smith-nephew.com/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "accountingStandardItemType" }, "dei_DocumentAnnualReport": { "auth_ref": [ "r397", "r398", "r399" ], "lang": { "en-us": { "role": { "documentation": "Boolean flag that is true only for a form used as an annual report.", "label": "Document Annual Report" } } }, "localname": "DocumentAnnualReport", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.smith-nephew.com/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "booleanItemType" }, "dei_DocumentFiscalPeriodFocus": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Fiscal period values are FY, Q1, Q2, and Q3. 1st, 2nd and 3rd quarter 10-Q or 10-QT statements have value Q1, Q2, and Q3 respectively, with 10-K, 10-KT or other fiscal year statements having FY.", "label": "Document Fiscal Period Focus" } } }, "localname": "DocumentFiscalPeriodFocus", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.smith-nephew.com/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "fiscalPeriodItemType" }, "dei_DocumentFiscalYearFocus": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This is focus fiscal year of the document report in YYYY format. For a 2006 annual report, which may also provide financial information from prior periods, fiscal 2006 should be given as the fiscal year focus. Example: 2006.", "label": "Document Fiscal Year Focus" } } }, "localname": "DocumentFiscalYearFocus", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.smith-nephew.com/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "gYearItemType" }, "dei_DocumentInformationLineItems": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Document Information [Line Items]", "terseLabel": "Document and Entity Information" } } }, "localname": "DocumentInformationLineItems", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.smith-nephew.com/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "stringItemType" }, "dei_DocumentInformationTable": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Container to support the formal attachment of each official or unofficial, public or private document as part of a submission package.", "label": "Document Information [Table]" } } }, "localname": "DocumentInformationTable", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.smith-nephew.com/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "stringItemType" }, "dei_DocumentPeriodEndDate": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "For the EDGAR submission types of Form 8-K: the date of the report, the date of the earliest event reported; for the EDGAR submission types of Form N-1A: the filing date; for all other submission types: the end of the reporting or transition period. The format of the date is YYYY-MM-DD.", "label": "Document Period End Date" } } }, "localname": "DocumentPeriodEndDate", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.smith-nephew.com/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "dateItemType" }, "dei_DocumentRegistrationStatement": { "auth_ref": [ "r392" ], "lang": { "en-us": { "role": { "documentation": "Boolean flag that is true only for a form used as a registration statement.", "label": "Document Registration Statement" } } }, "localname": "DocumentRegistrationStatement", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.smith-nephew.com/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "booleanItemType" }, "dei_DocumentShellCompanyReport": { "auth_ref": [ "r398" ], "lang": { "en-us": { "role": { "documentation": "Boolean flag that is true for a Shell Company Report pursuant to section 13 or 15(d) of the Exchange Act.", "label": "Document Shell Company Report" } } }, "localname": "DocumentShellCompanyReport", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.smith-nephew.com/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "booleanItemType" }, "dei_DocumentTransitionReport": { "auth_ref": [ "r400" ], "lang": { "en-us": { "role": { "documentation": "Boolean flag that is true only for a form used as a transition report.", "label": "Document Transition Report" } } }, "localname": "DocumentTransitionReport", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.smith-nephew.com/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "booleanItemType" }, "dei_DocumentType": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'.", "label": "Document Type" } } }, "localname": "DocumentType", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.smith-nephew.com/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "submissionTypeItemType" }, "dei_EntityAddressAddressLine1": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Address Line 1 such as Attn, Building Name, Street Name", "label": "Entity Address, Address Line One" } } }, "localname": "EntityAddressAddressLine1", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.smith-nephew.com/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "normalizedStringItemType" }, "dei_EntityAddressCityOrTown": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Name of the City or Town", "label": "Entity Address, City or Town" } } }, "localname": "EntityAddressCityOrTown", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.smith-nephew.com/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "normalizedStringItemType" }, "dei_EntityAddressCountry": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "ISO 3166-1 alpha-2 country code.", "label": "Entity Address, Country" } } }, "localname": "EntityAddressCountry", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.smith-nephew.com/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "countryCodeItemType" }, "dei_EntityAddressPostalZipCode": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Code for the postal or zip code", "label": "Entity Address, Postal Zip Code" } } }, "localname": "EntityAddressPostalZipCode", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.smith-nephew.com/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "normalizedStringItemType" }, "dei_EntityAddressesAddressTypeAxis": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The axis of a table defines the relationship between the domain members or categories in the table and the line items or concepts that complete the table.", "label": "Entity Addresses, Address Type [Axis]" } } }, "localname": "EntityAddressesAddressTypeAxis", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.smith-nephew.com/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "stringItemType" }, "dei_EntityCentralIndexKey": { "auth_ref": [ "r394" ], "lang": { "en-us": { "role": { "documentation": "A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.", "label": "Entity Central Index Key" } } }, "localname": "EntityCentralIndexKey", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.smith-nephew.com/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "centralIndexKeyItemType" }, "dei_EntityCommonStockSharesOutstanding": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Indicate number of shares or other units outstanding of each of registrant's classes of capital or common stock or other ownership interests, if and as stated on cover of related periodic report. Where multiple classes or units exist define each class/interest by adding class of stock items such as Common Class A [Member], Common Class B [Member] or Partnership Interest [Member] onto the Instrument [Domain] of the Entity Listings, Instrument.", "label": "Entity Common Stock, Shares Outstanding" } } }, "localname": "EntityCommonStockSharesOutstanding", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.smith-nephew.com/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "sharesItemType" }, "dei_EntityCurrentReportingStatus": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Indicate 'Yes' or 'No' whether registrants (1) have filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that registrants were required to file such reports), and (2) have been subject to such filing requirements for the past 90 days. This information should be based on the registrant's current or most recent filing containing the related disclosure.", "label": "Entity Current Reporting Status" } } }, "localname": "EntityCurrentReportingStatus", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.smith-nephew.com/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "yesNoItemType" }, "dei_EntityEmergingGrowthCompany": { "auth_ref": [ "r394" ], "lang": { "en-us": { "role": { "documentation": "Indicate if registrant meets the emerging growth company criteria.", "label": "Entity Emerging Growth Company" } } }, "localname": "EntityEmergingGrowthCompany", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.smith-nephew.com/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "booleanItemType" }, "dei_EntityFileNumber": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Commission file number. The field allows up to 17 characters. The prefix may contain 1-3 digits, the sequence number may contain 1-8 digits, the optional suffix may contain 1-4 characters, and the fields are separated with a hyphen.", "label": "Entity File Number" } } }, "localname": "EntityFileNumber", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.smith-nephew.com/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "fileNumberItemType" }, "dei_EntityFilerCategory": { "auth_ref": [ "r394" ], "lang": { "en-us": { "role": { "documentation": "Indicate whether the registrant is one of the following: Large Accelerated Filer, Accelerated Filer, Non-accelerated Filer. Definitions of these categories are stated in Rule 12b-2 of the Exchange Act. This information should be based on the registrant's current or most recent filing containing the related disclosure.", "label": "Entity Filer Category" } } }, "localname": "EntityFilerCategory", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.smith-nephew.com/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "filerCategoryItemType" }, "dei_EntityIncorporationStateCountryCode": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Two-character EDGAR code representing the state or country of incorporation.", "label": "Entity Incorporation, State or Country Code" } } }, "localname": "EntityIncorporationStateCountryCode", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.smith-nephew.com/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "edgarStateCountryItemType" }, "dei_EntityInteractiveDataCurrent": { "auth_ref": [ "r401" ], "lang": { "en-us": { "role": { "documentation": "Boolean flag that is true when the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).", "label": "Entity Interactive Data Current" } } }, "localname": "EntityInteractiveDataCurrent", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.smith-nephew.com/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "yesNoItemType" }, "dei_EntityRegistrantName": { "auth_ref": [ "r394" ], "lang": { "en-us": { "role": { "documentation": "The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.", "label": "Entity Registrant Name" } } }, "localname": "EntityRegistrantName", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.smith-nephew.com/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "normalizedStringItemType" }, "dei_EntityShellCompany": { "auth_ref": [ "r394" ], "lang": { "en-us": { "role": { "documentation": "Boolean flag that is true when the registrant is a shell company as defined in Rule 12b-2 of the Exchange Act.", "label": "Entity Shell Company" } } }, "localname": "EntityShellCompany", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.smith-nephew.com/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "booleanItemType" }, "dei_EntityVoluntaryFilers": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Indicate 'Yes' or 'No' if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.", "label": "Entity Voluntary Filers" } } }, "localname": "EntityVoluntaryFilers", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.smith-nephew.com/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "yesNoItemType" }, "dei_EntityWellKnownSeasonedIssuer": { "auth_ref": [ "r402" ], "lang": { "en-us": { "role": { "documentation": "Indicate 'Yes' or 'No' if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Is used on Form Type: 10-K, 10-Q, 8-K, 20-F, 6-K, 10-K/A, 10-Q/A, 20-F/A, 6-K/A, N-CSR, N-Q, N-1A.", "label": "Entity Well-known Seasoned Issuer" } } }, "localname": "EntityWellKnownSeasonedIssuer", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.smith-nephew.com/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "yesNoItemType" }, "dei_IcfrAuditorAttestationFlag": { "auth_ref": [ "r397", "r398", "r399" ], "lang": { "en-us": { "role": { "label": "ICFR Auditor Attestation Flag" } } }, "localname": "IcfrAuditorAttestationFlag", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.smith-nephew.com/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "booleanItemType" }, "dei_LocalPhoneNumber": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Local phone number for entity.", "label": "Local Phone Number" } } }, "localname": "LocalPhoneNumber", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.smith-nephew.com/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "normalizedStringItemType" }, "dei_NoTradingSymbolFlag": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Boolean flag that is true only for a security having no trading symbol.", "label": "No Trading Symbol Flag" } } }, "localname": "NoTradingSymbolFlag", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.smith-nephew.com/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "trueItemType" }, "dei_Security12bTitle": { "auth_ref": [ "r393" ], "lang": { "en-us": { "role": { "documentation": "Title of a 12(b) registered security.", "label": "Title of 12(b) Security" } } }, "localname": "Security12bTitle", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.smith-nephew.com/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "securityTitleItemType" }, "dei_SecurityExchangeName": { "auth_ref": [ "r395" ], "lang": { "en-us": { "role": { "documentation": "Name of the Exchange on which a security is registered.", "label": "Security Exchange Name" } } }, "localname": "SecurityExchangeName", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.smith-nephew.com/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "edgarExchangeCodeItemType" }, "dei_TradingSymbol": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Trading symbol of an instrument as listed on an exchange.", "label": "Trading Symbol" } } }, "localname": "TradingSymbol", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://www.smith-nephew.com/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "tradingSymbolItemType" }, "ifrs-full_AccountingProfit": { "auth_ref": [ "r71", "r72" ], "crdr": "credit", "lang": { "en": { "role": { "documentation": "The amount of profit (loss) for a period before deducting tax expense. [Refer: Profit (loss)]" } }, "en-us": { "role": { "label": "Accounting profit", "terseLabel": "Profit before taxation" } } }, "localname": "AccountingProfit", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationFactorsAffectingFutureTaxChargesDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_AccumulatedDepreciationAmortisationAndImpairmentMember": { "auth_ref": [ "r80", "r90", "r176", "r194", "r197" ], "lang": { "en": { "role": { "documentation": "This member stands for accumulated depreciation, amortisation and impairment. [Refer: Impairment loss; Depreciation and amortisation expense]" } }, "en-us": { "role": { "label": "Amortisation and impairment" } } }, "localname": "AccumulatedDepreciationAmortisationAndImpairmentMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureIntangibleAssetsDetails", "http://www.smith-nephew.com/role/DisclosurePropertyPlantAndEquipmentDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_AcquisitiondateFairValueOfEquityInterestInAcquireeHeldByAcquirerImmediatelyBeforeAcquisitionDate": { "auth_ref": [ "r286" ], "crdr": "credit", "lang": { "en": { "role": { "documentation": "The acquisition-date fair value of equity interest in the acquiree held by the acquirer immediately before the acquisition date in a business combination achieved in stages. [Refer: Business combinations [member]]" } }, "en-us": { "role": { "label": "Acquisition-date fair value of equity interest in acquiree held by acquirer immediately before acquisition date", "terseLabel": "Carrying value of equity interest held prior to acquisition date" } } }, "localname": "AcquisitiondateFairValueOfEquityInterestInAcquireeHeldByAcquirerImmediatelyBeforeAcquisitionDate", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_AcquisitiondateFairValueOfTotalConsiderationTransferred": { "auth_ref": [ "r283" ], "crdr": "credit", "lang": { "en": { "role": { "documentation": "The fair value, at acquisition date, of the consideration transferred in a business combination. [Refer: Business combinations [member]]" } }, "en-us": { "role": { "label": "Consideration transferred, acquisition-date fair value", "terseLabel": "Fair value of consideration", "verboseLabel": "Total consideration" } } }, "localname": "AcquisitiondateFairValueOfTotalConsiderationTransferred", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementFairValueDetails", "http://www.smith-nephew.com/role/DisclosurePostBalanceSheetEventsDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_AcquisitionsThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill": { "auth_ref": [ "r177" ], "crdr": "debit", "lang": { "en": { "role": { "documentation": "The increase in intangible assets other than goodwill resulting from acquisitions through business combinations. [Refer: Business combinations [member]; Intangible assets other than goodwill]" } }, "en-us": { "role": { "label": "Acquisitions through business combinations, intangible assets other than goodwill", "verboseLabel": "Acquisitions" } } }, "localname": "AcquisitionsThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureIntangibleAssetsDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_AcquisitionsThroughBusinessCombinationsOtherProvisions": { "auth_ref": [ "r171" ], "crdr": "credit", "lang": { "en": { "role": { "documentation": "The increase in other provisions resulting from acquisitions through business combinations. [Refer: Business combinations [member]; Other provisions]" } }, "en-us": { "role": { "label": "Acquisitions through business combinations, other provisions", "terseLabel": "Acquisitions" } } }, "localname": "AcquisitionsThroughBusinessCombinationsOtherProvisions", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureProvisionsAndContingenciesChangesInProvisionsDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_AcquisitionsThroughBusinessCombinationsPropertyPlantAndEquipment": { "auth_ref": [ "r83" ], "crdr": "debit", "lang": { "en": { "role": { "documentation": "The increase in property, plant and equipment resulting from acquisitions through business combinations. [Refer: Business combinations [member]; Property, plant and equipment]" } }, "en-us": { "role": { "label": "Acquisitions through business combinations, property, plant and equipment", "verboseLabel": "Acquisitions - Property, plant and equipment" } } }, "localname": "AcquisitionsThroughBusinessCombinationsPropertyPlantAndEquipment", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosurePropertyPlantAndEquipmentDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_ActuarialAssumptionOfDiscountRates": { "auth_ref": [ "r114" ], "lang": { "en": { "role": { "documentation": "The discount rate used as the significant actuarial assumption to determine the present value of a defined benefit obligation. [Refer: Defined benefit obligation, at present value; Actuarial assumptions [member]]" } }, "en-us": { "role": { "label": "Actuarial assumption of discount rates", "terseLabel": "Discount rate" } } }, "localname": "ActuarialAssumptionOfDiscountRates", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsPrincipalActuarialAssumptionsDetails" ], "xbrltype": "percentItemType" }, "ifrs-full_ActuarialAssumptionOfDiscountRatesMember": { "auth_ref": [ "r116" ], "lang": { "en": { "role": { "documentation": "This member stands for the discount rates used as actuarial assumptions. [Refer: Actuarial assumptions [member]]" } }, "en-us": { "role": { "label": "Discount rate" } } }, "localname": "ActuarialAssumptionOfDiscountRatesMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsSensitivityAnalysisDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_ActuarialAssumptionOfExpectedRatesOfInflationMember": { "auth_ref": [ "r116" ], "lang": { "en": { "role": { "documentation": "This member stands for the expected rates of inflation used as actuarial assumptions. [Refer: Actuarial assumptions [member]]" } }, "en-us": { "role": { "label": "Inflation" } } }, "localname": "ActuarialAssumptionOfExpectedRatesOfInflationMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsSensitivityAnalysisDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_ActuarialAssumptionOfExpectedRatesOfPensionIncreases": { "auth_ref": [ "r114" ], "lang": { "en": { "role": { "documentation": "The expected rate of increases in pension that is used as a significant actuarial assumption to determine the present value of a defined benefit obligation. [Refer: Defined benefit plans [member]; Defined benefit obligation, at present value; Actuarial assumptions [member]]" } }, "en-us": { "role": { "label": "Actuarial assumption of expected rates of pension increases", "terseLabel": "Future pension increases" } } }, "localname": "ActuarialAssumptionOfExpectedRatesOfPensionIncreases", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsPrincipalActuarialAssumptionsDetails" ], "xbrltype": "percentItemType" }, "ifrs-full_ActuarialAssumptionOfMortalityRatesMember": { "auth_ref": [ "r116" ], "lang": { "en": { "role": { "documentation": "This member stands for the mortality rates used as actuarial assumptions. [Refer: Actuarial assumptions [member]]" } }, "en-us": { "role": { "label": "Mortality" } } }, "localname": "ActuarialAssumptionOfMortalityRatesMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsSensitivityAnalysisDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_ActuarialAssumptionsAxis": { "auth_ref": [ "r116" ], "lang": { "en": { "role": { "documentation": "The axis of a table defines the relationship between the members in the table and the line items or concepts that complete the table." } }, "en-us": { "role": { "label": "Actuarial assumptions [axis]" } } }, "localname": "ActuarialAssumptionsAxis", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsSensitivityAnalysisDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_ActuarialAssumptionsMember": { "auth_ref": [ "r116" ], "lang": { "en": { "role": { "documentation": "This member stands for all actuarial assumptions. Actuarial assumptions are the entity\u2019s unbiased and mutually compatible best estimates of the demographic and financial variables that will determine the ultimate cost of providing post-employment benefits. It also represents the standard value for the 'Actuarial assumptions' axis if no other member is used." } }, "en-us": { "role": { "label": "Actuarial assumptions [member]" } } }, "localname": "ActuarialAssumptionsMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsSensitivityAnalysisDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_ActuarialGainsLossesArisingFromChangesInDemographicAssumptionsNetDefinedBenefitLiabilityAsset": { "auth_ref": [ "r103" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsReconciliationOfBenefitObligationsAndPensionAssetsDetails": { "order": 3.0, "parentTag": "ifrs-full_OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans", "weight": -1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The decrease (increase) in a net defined benefit liability (asset) resulting from actuarial gains (losses) arising from changes in demographic assumptions that result in remeasurements of the net defined benefit liability (asset). Demographic assumptions deal with matters such as: (a) mortality; (b) rates of employee turnover, disability and early retirement; (c) the proportion of plan members with dependants who will be eligible for benefits; (d) the proportion of plan members who will select each form of payment option available under the plan terms; and (e) claim rates under medical plans. [Refer: Net defined benefit liability (asset)]" } }, "en-us": { "role": { "label": "Actuarial gains (losses) arising from changes in demographic assumptions, net defined benefit liability (asset)", "negatedLabel": "Actuarial gain due to demographic assumptions" } } }, "localname": "ActuarialGainsLossesArisingFromChangesInDemographicAssumptionsNetDefinedBenefitLiabilityAsset", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsReconciliationOfBenefitObligationsAndPensionAssetsDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsNetDefinedBenefitLiabilityAsset": { "auth_ref": [ "r104" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsReconciliationOfBenefitObligationsAndPensionAssetsDetails": { "order": 2.0, "parentTag": "ifrs-full_OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans", "weight": -1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The decrease (increase) in a net defined benefit liability (asset) resulting from actuarial gains (losses) arising from changes in financial assumptions that result in remeasurements of the net defined benefit liability (asset). Financial assumptions deal with items such as: (a) the discount rate; (b) benefit levels, excluding any cost of the benefits to be met by employees, and future salary; (c) in the case of medical benefits, future medical costs, including claim handling costs (ie the costs that will be incurred in processing and resolving claims, including legal and adjuster's fees); and (d) taxes payable by the plan on contributions relating to service before the reporting date or on benefits resulting from that service. [Refer: Net defined benefit liability (asset)]" } }, "en-us": { "role": { "label": "Actuarial gains (losses) arising from changes in financial assumptions, net defined benefit liability (asset)", "negatedLabel": "Actuarial gain/(loss) due to financial assumptions change" } } }, "localname": "ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsNetDefinedBenefitLiabilityAsset", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsReconciliationOfBenefitObligationsAndPensionAssetsDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_AdditionalProvisionsOtherProvisions": { "auth_ref": [ "r168" ], "crdr": "credit", "lang": { "en": { "role": { "documentation": "The amount of additional other provisions made. [Refer: Other provisions]" } }, "en-us": { "role": { "label": "Additional provisions, other provisions", "terseLabel": "Charge to income statement" } } }, "localname": "AdditionalProvisionsOtherProvisions", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureProvisionsAndContingenciesChangesInProvisionsDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_AdditionalRecognitionGoodwill": { "auth_ref": [ "r292" ], "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount of additional goodwill recognised, except goodwill included in a disposal group that, on acquisition, meets the criteria to be classified as held for sale in accordance with IFRS 5. [Refer: Goodwill; Disposal groups classified as held for sale [member]]" } }, "en-us": { "role": { "label": "Additional recognition, goodwill", "terseLabel": "Acquisitions" } } }, "localname": "AdditionalRecognitionGoodwill", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails", "http://www.smith-nephew.com/role/DisclosureGoodwillDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill": { "auth_ref": [ "r177" ], "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount of additions to intangible assets other than goodwill, other than those acquired through business combinations. [Refer: Business combinations [member]; Intangible assets other than goodwill]" } }, "en-us": { "role": { "label": "Additions other than through business combinations, intangible assets other than goodwill", "terseLabel": "Additions" } } }, "localname": "AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureIntangibleAssetsDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment": { "auth_ref": [ "r81" ], "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount of additions to property, plant and equipment other than those acquired through business combinations. [Refer: Business combinations [member]; Property, plant and equipment]" } }, "en-us": { "role": { "label": "Additions other than through business combinations, property, plant and equipment", "terseLabel": "Additions" } } }, "localname": "AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosurePropertyPlantAndEquipmentDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_AdditionsToRightofuseAssets": { "auth_ref": [ "r270" ], "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount of additions to right-of-use assets. [Refer: Right-of-use assets]" } }, "en-us": { "role": { "label": "Additions to right-of-use assets", "terseLabel": "Additions" } } }, "localname": "AdditionsToRightofuseAssets", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosurePropertyPlantAndEquipmentDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_AdjustedWeightedAverageShares": { "auth_ref": [ "r152" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureEarningsPerOrdinaryShareEarningsPerOrdinaryShareDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "lang": { "en": { "role": { "documentation": "The weighted average number of ordinary shares outstanding plus the weighted average number of ordinary shares that would be issued on the conversion of all the dilutive potential ordinary shares into ordinary shares. [Refer: Ordinary shares [member]; Weighted average [member]]" } }, "en-us": { "role": { "label": "Adjusted weighted average number of ordinary shares outstanding", "totalLabel": "Diluted weighted average number of shares" } } }, "localname": "AdjustedWeightedAverageShares", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEarningsPerOrdinaryShareEarningsPerOrdinaryShareDetails" ], "xbrltype": "sharesItemType" }, "ifrs-full_AdjustmentsForCurrentTaxOfPriorPeriod": { "auth_ref": [ "r64" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureTaxationTaxationAttributableToGroupDetails": { "order": 2.0, "parentTag": "ifrs-full_CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriods", "weight": 1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "Adjustments of tax expense (income) recognised in the period for current tax of prior periods." } }, "en-us": { "role": { "label": "Adjustments for current tax of prior periods", "terseLabel": "Adjustments in respect of prior periods" } } }, "localname": "AdjustmentsForCurrentTaxOfPriorPeriod", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationTaxationAttributableToGroupDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_AdjustmentsForDecreaseIncreaseInInventories": { "auth_ref": [ "r206" ], "calculation": { "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement": { "order": 8.0, "parentTag": "ifrs-full_CashFlowsFromUsedInOperations", "weight": 1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "Adjustments for decrease (increase) in inventories to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Inventories; Profit (loss)]" } }, "en-us": { "role": { "label": "Adjustments for decrease (increase) in inventories", "terseLabel": "Increase in inventories" } } }, "localname": "AdjustmentsForDecreaseIncreaseInInventories", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement" ], "xbrltype": "monetaryItemType" }, "ifrs-full_AdjustmentsForDecreaseIncreaseInTradeAndOtherReceivables": { "auth_ref": [ "r208" ], "calculation": { "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement": { "order": 9.0, "parentTag": "ifrs-full_CashFlowsFromUsedInOperations", "weight": 1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "Adjustments for decrease (increase) in trade and other receivables to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Trade and other receivables; Profit (loss)]" } }, "en-us": { "role": { "label": "Adjustments for decrease (increase) in trade and other receivables", "terseLabel": "(Increase)/decrease in trade and other receivables" } } }, "localname": "AdjustmentsForDecreaseIncreaseInTradeAndOtherReceivables", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement" ], "xbrltype": "monetaryItemType" }, "ifrs-full_AdjustmentsForDeferredTaxOfPriorPeriods": { "auth_ref": [ "r68" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureTaxationTaxationAttributableToGroupDetails": { "order": 3.0, "parentTag": "ifrs-full_DeferredTaxExpenseIncome", "weight": 1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "Adjustments of tax expense (income) recognised in the period for the deferred tax of prior periods." } }, "en-us": { "role": { "label": "Adjustments for deferred tax of prior periods", "terseLabel": "Adjustments to estimated amounts arising in prior periods" } } }, "localname": "AdjustmentsForDeferredTaxOfPriorPeriods", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationTaxationAttributableToGroupDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_AdjustmentsForDepreciationAndAmortisationExpenseAndImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss": { "auth_ref": [ "r208" ], "calculation": { "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement": { "order": 3.0, "parentTag": "ifrs-full_CashFlowsFromUsedInOperations", "weight": 1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "Adjustments for depreciation and amortisation expense and impairment loss (reversal of impairment loss) to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Impairment loss; Depreciation and amortisation expense; Impairment loss (reversal of impairment loss) recognised in profit or loss; Profit (loss)]" } }, "en-us": { "role": { "label": "Adjustments for depreciation and amortisation expense and impairment loss (reversal of impairment loss) recognised in profit or loss", "terseLabel": "Depreciation, amortisation and impairment" } } }, "localname": "AdjustmentsForDepreciationAndAmortisationExpenseAndImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement" ], "xbrltype": "monetaryItemType" }, "ifrs-full_AdjustmentsForGainLossOnDisposalsPropertyPlantAndEquipment": { "auth_ref": [ "r208" ], "calculation": { "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement": { "order": 4.0, "parentTag": "ifrs-full_CashFlowsFromUsedInOperations", "weight": -1.0 } }, "crdr": "credit", "lang": { "en": { "role": { "documentation": "Adjustments for gain (loss) on disposals of property, plant and equipment to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Profit (loss); Property, plant and equipment; Disposals, property, plant and equipment]" } }, "en-us": { "role": { "label": "Adjustments for gain (loss) on disposals, property, plant and equipment", "negatedLabel": "Loss on disposal of property, plant and equipment and software" } } }, "localname": "AdjustmentsForGainLossOnDisposalsPropertyPlantAndEquipment", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement" ], "xbrltype": "monetaryItemType" }, "ifrs-full_AdjustmentsForIncreaseDecreaseInEmployeeBenefitLiabilities": { "auth_ref": [ "r208" ], "calculation": { "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement": { "order": 7.0, "parentTag": "ifrs-full_CashFlowsFromUsedInOperations", "weight": 1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "Adjustments for increase (decrease) in employee benefit liabilities to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Profit (loss)]" } }, "en-us": { "role": { "label": "Adjustments for increase (decrease) in employee benefit liabilities", "terseLabel": "Net movement in post-retirement benefit obligations" } } }, "localname": "AdjustmentsForIncreaseDecreaseInEmployeeBenefitLiabilities", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement" ], "xbrltype": "monetaryItemType" }, "ifrs-full_AdjustmentsForInterestExpense": { "auth_ref": [ "r208" ], "calculation": { "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement": { "order": 2.0, "parentTag": "ifrs-full_CashFlowsFromUsedInOperations", "weight": 1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "Adjustments for interest expense to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Interest expense; Profit (loss)]" } }, "en-us": { "role": { "label": "Adjustments for interest expense", "terseLabel": "Net interest expense" } } }, "localname": "AdjustmentsForInterestExpense", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement" ], "xbrltype": "monetaryItemType" }, "ifrs-full_AdjustmentsForSharebasedPayments": { "auth_ref": [ "r207" ], "calculation": { "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement": { "order": 5.0, "parentTag": "ifrs-full_CashFlowsFromUsedInOperations", "weight": 1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "Adjustments for share-based payments to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Profit (loss)]" } }, "en-us": { "role": { "label": "Adjustments for share-based payments", "terseLabel": "Share-based payments expense (equity-settled)" } } }, "localname": "AdjustmentsForSharebasedPayments", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement" ], "xbrltype": "monetaryItemType" }, "ifrs-full_AdjustmentsForUndistributedProfitsOfAssociates": { "auth_ref": [ "r207" ], "calculation": { "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement": { "order": 6.0, "parentTag": "ifrs-full_CashFlowsFromUsedInOperations", "weight": -1.0 } }, "crdr": "credit", "lang": { "en": { "role": { "documentation": "Adjustments for undistributed profits of associates to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Associates [member]; Profit (loss)]" } }, "en-us": { "role": { "label": "Adjustments for undistributed profits of associates", "negatedTerseLabel": "Share of results of associates" } } }, "localname": "AdjustmentsForUndistributedProfitsOfAssociates", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement" ], "xbrltype": "monetaryItemType" }, "ifrs-full_AdministrativeExpense": { "auth_ref": [ "r2", "r57", "r142" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureOperatingProfitDetails": { "order": 2.0, "parentTag": "ifrs-full_SellingGeneralAndAdministrativeExpense", "weight": 1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount of expenses that the entity classifies as being administrative." } }, "en-us": { "role": { "label": "Administrative expenses", "negatedLabel": "Administrative expenses" } } }, "localname": "AdministrativeExpense", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureOperatingProfitDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_AggregatedIndividuallyImmaterialAssociatesMember": { "auth_ref": [ "r228", "r373", "r378" ], "lang": { "en": { "role": { "documentation": "This member stands for the aggregation of associates that are individually immaterial. [Refer: Associates [member]]" } }, "en-us": { "role": { "label": "Other associates" } } }, "localname": "AggregatedIndividuallyImmaterialAssociatesMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureInvestmentsInAssociatesSummarisedBalanceSheetDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_AggregatedMeasurementMember": { "auth_ref": [ "r192", "r196", "r241" ], "lang": { "en": { "role": { "documentation": "This member stands for all types of measurement. It also represents the standard value for the 'Measurement' axis if no other member is used." } }, "en-us": { "role": { "label": "Aggregated measurement [member]" } } }, "localname": "AggregatedMeasurementMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementFairValueDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_AggregatedTimeBandsMember": { "auth_ref": [ "r30", "r118", "r262", "r273", "r275", "r300", "r330", "r336", "r356", "r357", "r359", "r365" ], "lang": { "en": { "role": { "documentation": "This member stands for aggregated time bands. It also represents the standard value for the 'Maturity' axis if no other member is used." } }, "en-us": { "role": { "label": "Aggregated time bands [member]" } } }, "localname": "AggregatedTimeBandsMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsBorrowingsAreRepayableDetails", "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsYearEndFinancialLiabilitiesByContractualMaturityDetails", "http://www.smith-nephew.com/role/DisclosureTradeAndOtherPayablesDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_AllLevelsOfFairValueHierarchyMember": { "auth_ref": [ "r113", "r242" ], "lang": { "en": { "role": { "documentation": "This member stands for all levels of the fair value hierarchy. It also represents the standard value for the 'Levels of fair value hierarchy' axis if no other member is used." } }, "en-us": { "role": { "label": "All levels of fair value hierarchy [member]" } } }, "localname": "AllLevelsOfFairValueHierarchyMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementFairValueDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementMovementOfFinancialInstrumentsDetails", "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsPlanAssetsDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_AmortisationExpense": { "auth_ref": [ "r12" ], "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount of amortisation expense. Amortisation is the systematic allocation of depreciable amounts of intangible assets over their useful lives." } }, "en-us": { "role": { "label": "Amortisation expense", "terseLabel": "Amortisation of intangibles" } } }, "localname": "AmortisationExpense", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureOperatingProfitDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_AmortisationIntangibleAssetsOtherThanGoodwill": { "auth_ref": [ "r180" ], "lang": { "en": { "role": { "documentation": "The amount of amortisation of intangible assets other than goodwill. [Refer: Depreciation and amortisation expense; Intangible assets other than goodwill]" } }, "en-us": { "role": { "label": "Amortisation, intangible assets other than goodwill", "verboseLabel": "Change for the year - amortisation" } } }, "localname": "AmortisationIntangibleAssetsOtherThanGoodwill", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureIntangibleAssetsDetails", "http://www.smith-nephew.com/role/DisclosureOperatingProfitDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_AmountsRecognisedAsOfAcquisitionDateForEachMajorClassOfAssetsAcquiredAndLiabilitiesAssumedAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Amounts recognised as of acquisition date for each major class of assets acquired and liabilities assumed [abstract]", "terseLabel": "Aggregate identifiable assets acquired and liabilities assumed" } } }, "localname": "AmountsRecognisedAsOfAcquisitionDateForEachMajorClassOfAssetsAcquiredAndLiabilitiesAssumedAbstract", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_ApplicableTaxRate": { "auth_ref": [ "r72" ], "lang": { "en": { "role": { "documentation": "The applicable income tax rate." } }, "en-us": { "role": { "label": "Applicable tax rate", "verboseLabel": "UK corporation tax rate (as a percent)" } } }, "localname": "ApplicableTaxRate", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationDeferredTaxationDetails", "http://www.smith-nephew.com/role/DisclosureTaxationFactorsAffectingFutureTaxChargesDetails" ], "xbrltype": "percentItemType" }, "ifrs-full_Assets": { "auth_ref": [ "r27", "r241", "r242", "r247", "r344", "r346" ], "calculation": { "http://www.smith-nephew.com/role/StatementGroupBalanceSheet": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount of a present economic resource controlled by the entity as a result of past events. Economic resource is a right that has the potential to produce economic benefits." } }, "en-us": { "role": { "label": "Assets", "periodEndLabel": "Assets at end of period", "periodStartLabel": "Assets at beginning of period", "totalLabel": "Total assets", "verboseLabel": "Financial assets" } } }, "localname": "Assets", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementFairValueDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementMovementOfFinancialInstrumentsDetails", "http://www.smith-nephew.com/role/StatementGroupBalanceSheet" ], "xbrltype": "monetaryItemType" }, "ifrs-full_AssetsAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Assets [abstract]", "terseLabel": "Assets" } } }, "localname": "AssetsAbstract", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/StatementGroupBalanceSheet" ], "xbrltype": "stringItemType" }, "ifrs-full_AssociatesMember": { "auth_ref": [ "r138", "r145", "r147", "r240", "r372", "r377" ], "lang": { "en": { "role": { "documentation": "This member stands for the entities over which the investor has significant influence." } }, "en-us": { "role": { "label": "Associates [member]" } } }, "localname": "AssociatesMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureInvestmentsInAssociatesAmountsRecognisedInBalanceSheetAndIncomeStatementDetails", "http://www.smith-nephew.com/role/DisclosureInvestmentsInAssociatesSummarisedBalanceSheetDetails", "http://www.smith-nephew.com/role/DisclosureInvestmentsInAssociatesSummarisedStatementOfComprehensiveIncomeDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_AtFairValueMember": { "auth_ref": [ "r192", "r196", "r241" ], "lang": { "en": { "role": { "documentation": "This member stands for measurement based on fair value. Fair value is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date." } }, "en-us": { "role": { "label": "At fair value" } } }, "localname": "AtFairValueMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementFairValueDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_AuditorsRemuneration": { "auth_ref": [ "r12" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureOperatingProfitInformationAboutNatureAndCostOfServicesDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount of fees paid or payable to the entity's auditors." } }, "en-us": { "role": { "label": "Auditor's remuneration", "totalLabel": "Total auditor's remuneration" } } }, "localname": "AuditorsRemuneration", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureOperatingProfitInformationAboutNatureAndCostOfServicesDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_AuditorsRemunerationAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Auditor's remuneration [abstract]", "terseLabel": "Audit services:" } } }, "localname": "AuditorsRemunerationAbstract", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureOperatingProfitInformationAboutNatureAndCostOfServicesDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_AuditorsRemunerationForOtherServices": { "auth_ref": [ "r12" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureOperatingProfitInformationAboutNatureAndCostOfServicesDetails": { "order": 1.0, "parentTag": "ifrs-full_AuditorsRemuneration", "weight": 1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount of fees paid or payable to the entity's auditors for services that the entity does not separately disclose in the same statement or note." } }, "en-us": { "role": { "label": "Auditor's remuneration for other services", "terseLabel": "Audit related services" } } }, "localname": "AuditorsRemunerationForOtherServices", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureOperatingProfitInformationAboutNatureAndCostOfServicesDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_AverageForeignExchangeRate": { "auth_ref": [ "r12" ], "lang": { "en": { "role": { "documentation": "The average exchange rate used by the entity. Exchange rate is the ratio of exchange for two currencies." } }, "en-us": { "role": { "label": "Average foreign exchange rate", "terseLabel": "Average rates" } } }, "localname": "AverageForeignExchangeRate", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBasisOfPreparationDetails" ], "xbrltype": "decimalItemType" }, "ifrs-full_AverageNumberOfEmployees": { "auth_ref": [ "r12" ], "lang": { "en": { "role": { "documentation": "The average number of personnel employed by the entity during a period." } }, "en-us": { "role": { "label": "Average number of employees", "terseLabel": "Average number of employees" } } }, "localname": "AverageNumberOfEmployees", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureOperatingProfitInformationAboutNatureAndCostOfServicesDetails" ], "xbrltype": "decimalItemType" }, "ifrs-full_BalancesWithBanks": { "auth_ref": [ "r215" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsNetDebtDetails": { "order": 2.0, "parentTag": "ifrs-full_NetDebt", "weight": -1.0 }, "http://www.smith-nephew.com/role/StatementGroupBalanceSheet": { "order": 2.0, "parentTag": "ifrs-full_CurrentAssets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount of cash balances held at banks." } }, "en-us": { "role": { "label": "Balances with banks", "negatedLabel": "Cash at bank", "terseLabel": "Cash at bank" } } }, "localname": "BalancesWithBanks", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsNetDebtDetails", "http://www.smith-nephew.com/role/DisclosureCashFlowStatementCashAndCashEquivalentsDetails", "http://www.smith-nephew.com/role/StatementGroupBalanceSheet" ], "xbrltype": "monetaryItemType" }, "ifrs-full_BankBorrowingsUndiscountedCashFlows": { "auth_ref": [ "r331", "r338" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsYearEndFinancialLiabilitiesByContractualMaturityDetails": { "order": 2.0, "parentTag": "snn_FinancialLiabilitiesUndiscountedCashFlows", "weight": 1.0 } }, "crdr": "credit", "lang": { "en": { "role": { "documentation": "The amount of contractual undiscounted cash flows in relation to bank borrowings. [Refer: Borrowings]" } }, "en-us": { "role": { "label": "Bank Borrowings Undiscounted Cash Flows", "terseLabel": "Bank overdrafts and loans" } } }, "localname": "BankBorrowingsUndiscountedCashFlows", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsYearEndFinancialLiabilitiesByContractualMaturityDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_BankOverdraftsClassifiedAsCashEquivalents": { "auth_ref": [ "r215" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsBorrowingsAreRepayableDetails": { "order": 1.0, "parentTag": "snn_BorrowingsIncludingLeaseLiabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en": { "role": { "documentation": "The amount that has been withdrawn from an account in excess of existing cash balances. This is considered a short-term extension of credit by the bank. [Refer: Cash and cash equivalents]" } }, "en-us": { "role": { "label": "Bank overdrafts", "negatedLabel": "Bank overdrafts", "terseLabel": "Bank overdrafts" } } }, "localname": "BankOverdraftsClassifiedAsCashEquivalents", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsBorrowingsAreRepayableDetails", "http://www.smith-nephew.com/role/DisclosureCashFlowStatementCashAndCashEquivalentsDetails", "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement" ], "xbrltype": "monetaryItemType" }, "ifrs-full_BasicEarningsLossPerShare": { "auth_ref": [ "r150", "r151" ], "lang": { "en": { "role": { "documentation": "The amount of profit (loss) attributable to ordinary equity holders of the parent entity (the numerator) divided by the weighted average number of ordinary shares outstanding during the period (the denominator)." } }, "en-us": { "role": { "label": "Basic earnings (loss) per share", "terseLabel": "Basic" } } }, "localname": "BasicEarningsLossPerShare", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEarningsPerOrdinaryShareEarningsPerOrdinaryShareDetails", "http://www.smith-nephew.com/role/StatementGroupIncomeStatement" ], "xbrltype": "perShareItemType" }, "ifrs-full_BondsIssued": { "auth_ref": [ "r12" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsBorrowingsAreRepayableDetails": { "order": 4.0, "parentTag": "snn_BorrowingsIncludingLeaseLiabilities", "weight": 1.0 }, "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsNetDebtDetails": { "order": 4.0, "parentTag": "ifrs-full_Borrowings", "weight": 1.0 } }, "crdr": "credit", "lang": { "en": { "role": { "documentation": "The amount of bonds issued by the entity." } }, "en-us": { "role": { "label": "Bonds issued", "terseLabel": "Corporate bond" } } }, "localname": "BondsIssued", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsBorrowingsAreRepayableDetails", "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsNetDebtDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_Borrowings": { "auth_ref": [ "r27" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsNetDebtDetails": { "order": 3.0, "parentTag": "ifrs-full_NetDebt", "weight": 1.0 } }, "crdr": "credit", "lang": { "en": { "role": { "documentation": "The amount of outstanding funds that the entity is obligated to repay." } }, "en-us": { "role": { "label": "Borrowings", "totalLabel": "Borrowings", "verboseLabel": "Outstanding amount" } } }, "localname": "Borrowings", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBasisOfPreparationDetails", "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsLiquidityRiskExposuresDetails", "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsNetDebtDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_BorrowingsByNameAxis": { "auth_ref": [ "r324" ], "lang": { "en": { "role": { "documentation": "The axis of a table defines the relationship between the members in the table and the line items or concepts that complete the table." } }, "en-us": { "role": { "label": "Borrowings by name [axis]" } } }, "localname": "BorrowingsByNameAxis", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBasisOfPreparationDetails", "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsLiquidityAndCapitalResourcesDetails", "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsLiquidityRiskExposuresDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementForeignExchangeExposuresDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementInterestRateExposuresDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementNetInvestmentHedgeDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_BorrowingsByNameMember": { "auth_ref": [ "r324" ], "lang": { "en": { "role": { "documentation": "This member stands for all borrowings when disaggregated by name. It also represents the standard value for the 'Borrowings by name' axis if no other member is used. [Refer: Borrowings]" } }, "en-us": { "role": { "label": "Borrowings by name [member]" } } }, "localname": "BorrowingsByNameMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBasisOfPreparationDetails", "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsLiquidityAndCapitalResourcesDetails", "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsLiquidityRiskExposuresDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementForeignExchangeExposuresDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementInterestRateExposuresDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementNetInvestmentHedgeDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_BorrowingsInterestRate": { "auth_ref": [ "r324" ], "lang": { "en": { "role": { "documentation": "The interest rate on borrowings. [Refer: Borrowings]" } }, "en-us": { "role": { "label": "Borrowings, interest rate", "terseLabel": "Interest rate" } } }, "localname": "BorrowingsInterestRate", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsLiquidityRiskExposuresDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementInterestBearingLiabilitiesDetails" ], "xbrltype": "percentItemType" }, "ifrs-full_BottomOfRangeMember": { "auth_ref": [ "r251", "r253", "r254", "r278", "r324", "r359" ], "lang": { "en": { "role": { "documentation": "This member stands for the bottom of a range." } }, "en-us": { "role": { "label": "Minimum" } } }, "localname": "BottomOfRangeMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureIntangibleAssetsDetails", "http://www.smith-nephew.com/role/DisclosureInventoriesDetails", "http://www.smith-nephew.com/role/DisclosureOtherNotesToAccountsStockOptionsOutstandingDetails", "http://www.smith-nephew.com/role/DisclosurePropertyPlantAndEquipmentDetails", "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsDetails", "http://www.smith-nephew.com/role/DisclosureTaxationDeferredTaxationDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_BuildingsMember": { "auth_ref": [ "r79" ], "lang": { "en": { "role": { "documentation": "This member stands for a class of plant, property and equipment representing depreciable buildings and similar structures for use in operations. [Refer: Property, plant and equipment]" } }, "en-us": { "role": { "label": "Buildings" } } }, "localname": "BuildingsMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosurePropertyPlantAndEquipmentDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_BusinessCombinationsAxis": { "auth_ref": [ "r290" ], "lang": { "en": { "role": { "documentation": "The axis of a table defines the relationship between the members in the table and the line items or concepts that complete the table." } }, "en-us": { "role": { "label": "Business combinations [axis]" } } }, "localname": "BusinessCombinationsAxis", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails", "http://www.smith-nephew.com/role/DisclosureAcquisitionsTables", "http://www.smith-nephew.com/role/DisclosureIntangibleAssetsDetails", "http://www.smith-nephew.com/role/DisclosurePostBalanceSheetEventsDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_CancellationOfTreasuryShares": { "auth_ref": [ "r8" ], "crdr": "credit", "lang": { "en": { "role": { "documentation": "The amount of treasury stock cancelled during the period. [Refer: Treasury shares]" } }, "en-us": { "role": { "label": "Cancellation of treasury shares", "negatedTerseLabel": "Shares cancelled", "terseLabel": "Cancellation of treasury shares", "verboseLabel": "Shares cancelled" } } }, "localname": "CancellationOfTreasuryShares", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEquityShareCapitalDetails", "http://www.smith-nephew.com/role/DisclosureEquityTreasurySharesDetails", "http://www.smith-nephew.com/role/StatementGroupStatementOfChangesInEquity" ], "xbrltype": "monetaryItemType" }, "ifrs-full_CapitalCommitments": { "auth_ref": [ "r12" ], "crdr": "credit", "lang": { "en": { "role": { "documentation": "The amount of future capital expenditures that the entity is committed to make." } }, "en-us": { "role": { "label": "Capital commitments", "verboseLabel": "Capital expenditure relating to software contracted but not provided" } } }, "localname": "CapitalCommitments", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureIntangibleAssetsDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_CapitalRedemptionReserve": { "auth_ref": [ "r27" ], "calculation": { "http://www.smith-nephew.com/role/StatementGroupBalanceSheet": { "order": 1.0, "parentTag": "ifrs-full_EquityAttributableToOwnersOfParent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en": { "role": { "documentation": "A component of equity representing the reserve for the redemption of the entity's own shares." } }, "en-us": { "role": { "label": "Capital redemption reserve.", "terseLabel": "Capital redemption reserve" } } }, "localname": "CapitalRedemptionReserve", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/StatementGroupBalanceSheet" ], "xbrltype": "monetaryItemType" }, "ifrs-full_CapitalRedemptionReserveMember": { "auth_ref": [ "r11" ], "lang": { "en": { "role": { "documentation": "This member stands for a component of equity representing the reserve for the redemption of the entity's own shares." } }, "en-us": { "role": { "label": "Capital redemption reserve" } } }, "localname": "CapitalRedemptionReserveMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEquityEquityComponentsDetails", "http://www.smith-nephew.com/role/StatementGroupStatementOfChangesInEquity" ], "xbrltype": "domainItemType" }, "ifrs-full_CapitalReserve": { "auth_ref": [ "r27" ], "crdr": "credit", "lang": { "en": { "role": { "documentation": "A component of equity representing the capital reserves." } }, "en-us": { "role": { "label": "Capital reserve", "verboseLabel": "Capital reserve" } } }, "localname": "CapitalReserve", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/StatementGroupStatementOfChangesInEquityParenthetical" ], "xbrltype": "monetaryItemType" }, "ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis": { "auth_ref": [ "r80", "r87", "r176", "r182", "r193", "r194", "r195", "r196", "r197", "r294", "r313", "r314", "r385", "r391" ], "lang": { "en": { "role": { "documentation": "The axis of a table defines the relationship between the members in the table and the line items or concepts that complete the table." } }, "en-us": { "role": { "label": "Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis]" } } }, "localname": "CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureGoodwillDetails", "http://www.smith-nephew.com/role/DisclosureIntangibleAssetsDetails", "http://www.smith-nephew.com/role/DisclosurePropertyPlantAndEquipmentDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_CarryingAmountMember": { "auth_ref": [ "r87", "r182", "r193", "r195", "r196", "r294", "r313", "r314", "r385", "r390" ], "lang": { "en": { "role": { "documentation": "This member stands for the amount at which an asset is recognised in the statement of financial position (after deducting any accumulated depreciation or amortisation and accumulated impairment losses). It also represents the standard value for the 'Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount' axis if no other member is used. [Refer: Depreciation and amortisation expense; Impairment loss]" } }, "en-us": { "role": { "label": "Carrying amount [member]" } } }, "localname": "CarryingAmountMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureGoodwillDetails", "http://www.smith-nephew.com/role/DisclosureIntangibleAssetsDetails", "http://www.smith-nephew.com/role/DisclosurePropertyPlantAndEquipmentDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_CashAndCashEquivalents": { "auth_ref": [ "r20", "r215", "r237" ], "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount of cash on hand and demand deposits, along with short-term, highly liquid investments that are readily convertible to known amounts of cash and that are subject to an insignificant risk of changes in value. [Refer: Cash; Cash equivalents]" } }, "en-us": { "role": { "label": "Cash and cash equivalents", "periodEndLabel": "Cash and cash equivalents at end of year", "periodStartLabel": "Cash and cash equivalents at beginning of year", "terseLabel": "Net cash and cash equivalents", "verboseLabel": "Cash net of bank overdrafts" } } }, "localname": "CashAndCashEquivalents", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBasisOfPreparationDetails", "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsLiquidityAndCapitalResourcesDetails", "http://www.smith-nephew.com/role/DisclosureCashFlowStatementCashAndCashEquivalentsDetails", "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement" ], "xbrltype": "monetaryItemType" }, "ifrs-full_CashAndCashEquivalentsAmountContributedToFairValueOfPlanAssets": { "auth_ref": [ "r109" ], "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount cash and cash equivalents contribute to the fair value of defined benefit plan assets. [Refer: Cash and cash equivalents; Plan assets, at fair value; Defined benefit plans [member]]" } }, "en-us": { "role": { "label": "Cash and cash equivalents, amount contributed to fair value of plan assets", "terseLabel": "Cash and cash equivalents" } } }, "localname": "CashAndCashEquivalentsAmountContributedToFairValueOfPlanAssets", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsPlanAssetsDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_CashAndCashEquivalentsIfDifferentFromStatementOfFinancialPositionAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Cash and cash equivalents if different from statement of financial position [abstract]" } } }, "localname": "CashAndCashEquivalentsIfDifferentFromStatementOfFinancialPositionAbstract", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashFlowStatementCashAndCashEquivalentsDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_CashAndCashEquivalentsRecognisedAsOfAcquisitionDate": { "auth_ref": [ "r285" ], "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount recognised as of the acquisition date for cash and cash equivalents acquired in a business combination. [Refer: Cash and cash equivalents; Business combinations [member]]" } }, "en-us": { "role": { "label": "Cash and cash equivalents recognised as of acquisition date", "terseLabel": "Net cash" } } }, "localname": "CashAndCashEquivalentsRecognisedAsOfAcquisitionDate", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_CashFlowHedgesMember": { "auth_ref": [ "r190", "r303", "r304", "r306" ], "lang": { "en": { "role": { "documentation": "This member stands for hedges of the exposure to variability in cash flows that (a) are attributable to a particular risk associated with a recognised asset or liability (such as all or some future interest payments on variable rate debt) or a highly probable forecast transaction; and (b) could affect profit or loss. [Refer: Hedges [member]]" } }, "en-us": { "role": { "label": "Cash flow hedges" } } }, "localname": "CashFlowHedgesMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementHedgeDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_CashFlowsFromUsedInFinancingActivities": { "auth_ref": [ "r198", "r216" ], "calculation": { "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement": { "order": 3.0, "parentTag": "ifrs-full_IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges", "weight": 1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The cash flows from (used in) financing activities, which are activities that result in changes in the size and composition of the contributed equity and borrowings of the entity." } }, "en-us": { "role": { "label": "Cash flows from (used in) financing activities", "negatedLabel": "Net cash used in financing activities", "totalLabel": "Net cash (used in)/from financing activities" } } }, "localname": "CashFlowsFromUsedInFinancingActivities", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashFlowStatementCashOutflowsInflowsArisingFromFinancingActivitiesDetails", "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement" ], "xbrltype": "monetaryItemType" }, "ifrs-full_CashFlowsFromUsedInFinancingActivitiesAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Cash flows from (used in) financing activities [abstract]", "terseLabel": "Cash flows from financing activities" } } }, "localname": "CashFlowsFromUsedInFinancingActivitiesAbstract", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement" ], "xbrltype": "stringItemType" }, "ifrs-full_CashFlowsFromUsedInInvestingActivities": { "auth_ref": [ "r198", "r216" ], "calculation": { "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement": { "order": 2.0, "parentTag": "ifrs-full_IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges", "weight": 1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The cash flows from (used in) investing activities, which are the acquisition and disposal of long-term assets and other investments not included in cash equivalents." } }, "en-us": { "role": { "label": "Cash flows from (used in) investing activities", "totalLabel": "Net cash used in investing activities" } } }, "localname": "CashFlowsFromUsedInInvestingActivities", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement" ], "xbrltype": "monetaryItemType" }, "ifrs-full_CashFlowsFromUsedInInvestingActivitiesAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Cash flows from (used in) investing activities [abstract]", "terseLabel": "Cash flows from investing activities" } } }, "localname": "CashFlowsFromUsedInInvestingActivitiesAbstract", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement" ], "xbrltype": "stringItemType" }, "ifrs-full_CashFlowsFromUsedInOperatingActivities": { "auth_ref": [ "r198", "r216" ], "calculation": { "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement": { "order": 1.0, "parentTag": "ifrs-full_IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges", "weight": 1.0 } }, "lang": { "en": { "role": { "documentation": "The cash flows from (used in) operating activities, which are the principal revenue-producing activities of the entity and other activities that are not investing or financing activities. [Refer: Revenue]" } }, "en-us": { "role": { "label": "Cash flows from (used in) operating activities", "totalLabel": "Net cash inflow from operating activities" } } }, "localname": "CashFlowsFromUsedInOperatingActivities", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement" ], "xbrltype": "monetaryItemType" }, "ifrs-full_CashFlowsFromUsedInOperatingActivitiesAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Cash flows from (used in) operating activities [abstract]", "terseLabel": "Cash flows from operating activities" } } }, "localname": "CashFlowsFromUsedInOperatingActivitiesAbstract", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement" ], "xbrltype": "stringItemType" }, "ifrs-full_CashFlowsFromUsedInOperations": { "auth_ref": [ "r208", "r217" ], "calculation": { "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement": { "order": 1.0, "parentTag": "ifrs-full_CashFlowsFromUsedInOperatingActivities", "weight": 1.0 } }, "lang": { "en": { "role": { "documentation": "The cash from (used in) the entity's operations." } }, "en-us": { "role": { "label": "Cash flows from (used in) operations", "totalLabel": "Cash generated from operations" } } }, "localname": "CashFlowsFromUsedInOperations", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement" ], "xbrltype": "monetaryItemType" }, "ifrs-full_CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities": { "auth_ref": [ "r213" ], "calculation": { "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement": { "order": 1.0, "parentTag": "ifrs-full_CashFlowsFromUsedInInvestingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en": { "role": { "documentation": "The aggregate cash flows used in obtaining control of subsidiaries or other businesses, classified as investing activities. [Refer: Subsidiaries [member]]" } }, "en-us": { "role": { "label": "Cash flows used in obtaining control of subsidiaries or other businesses, classified as investing activities", "negatedLabel": "Acquisitions, net of cash acquired", "netLabel": "Cash flows used in obtaining control of subsidiaries or other businesses" } } }, "localname": "CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails", "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement" ], "xbrltype": "monetaryItemType" }, "ifrs-full_CashOutflowForLeases": { "auth_ref": [ "r269" ], "calculation": { "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement": { "order": 3.0, "parentTag": "ifrs-full_CashFlowsFromUsedInFinancingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en": { "role": { "documentation": "The cash outflow for leases." } }, "en-us": { "role": { "label": "Cash outflow for leases", "negatedLabel": "Payment of capital element of lease liabilities" } } }, "localname": "CashOutflowForLeases", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement" ], "xbrltype": "monetaryItemType" }, "ifrs-full_CashTransferred": { "auth_ref": [ "r281" ], "crdr": "credit", "lang": { "en": { "role": { "documentation": "The fair value, at acquisition date, of cash transferred as consideration in a business combination. [Refer: Business combinations [member]]" } }, "en-us": { "role": { "label": "Cash transferred", "terseLabel": "Cash transferred" } } }, "localname": "CashTransferred", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_CategoriesOfFinancialAssetsAxis": { "auth_ref": [ "r328" ], "lang": { "en": { "role": { "documentation": "The axis of a table defines the relationship between the members in the table and the line items or concepts that complete the table." } }, "en-us": { "role": { "label": "Categories of financial assets [axis]" } } }, "localname": "CategoriesOfFinancialAssetsAxis", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementFairValueDetails", "http://www.smith-nephew.com/role/DisclosureInvestmentsDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_CategoriesOfFinancialLiabilitiesAxis": { "auth_ref": [ "r328" ], "lang": { "en": { "role": { "documentation": "The axis of a table defines the relationship between the members in the table and the line items or concepts that complete the table." } }, "en-us": { "role": { "label": "Categories of financial liabilities [axis]" } } }, "localname": "CategoriesOfFinancialLiabilitiesAxis", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementFairValueDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_CategoriesOfRelatedPartiesAxis": { "auth_ref": [ "r140" ], "lang": { "en": { "role": { "documentation": "The axis of a table defines the relationship between the members in the table and the line items or concepts that complete the table." } }, "en-us": { "role": { "label": "Categories of related parties [axis]" } } }, "localname": "CategoriesOfRelatedPartiesAxis", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureOtherNotesToAccountsRelatedPartyTransactionsDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_ChangesInNetDefinedBenefitLiabilityAssetAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Changes in net defined benefit liability (asset) [abstract]", "terseLabel": "Movement in pension benefit obligation and pension assets:" } } }, "localname": "ChangesInNetDefinedBenefitLiabilityAssetAbstract", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsReconciliationOfBenefitObligationsAndPensionAssetsDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_ClassesOfAssetsAxis": { "auth_ref": [ "r155", "r158", "r248", "r272" ], "lang": { "en": { "role": { "documentation": "The axis of a table defines the relationship between the members in the table and the line items or concepts that complete the table." } }, "en-us": { "role": { "label": "Classes of assets [axis]" } } }, "localname": "ClassesOfAssetsAxis", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashFlowStatementAnalysisOfNetDebtDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementMovementOfFinancialInstrumentsDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_ClassesOfAssetsMember": { "auth_ref": [ "r155", "r248", "r272" ], "lang": { "en": { "role": { "documentation": "This member stands for a present economic resource controlled by the entity as a result of past events. Economic resource is a right that has the potential to produce economic benefits. It also represents the standard value for the 'Classes of assets' axis if no other member is used." } }, "en-us": { "role": { "label": "Assets [member]" } } }, "localname": "ClassesOfAssetsMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashFlowStatementAnalysisOfNetDebtDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementMovementOfFinancialInstrumentsDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_ClassesOfFinancialAssetsAxis": { "auth_ref": [ "r322", "r323", "r355", "r368", "r369", "r370" ], "lang": { "en": { "role": { "documentation": "The axis of a table defines the relationship between the members in the table and the line items or concepts that complete the table." } }, "en-us": { "role": { "label": "Classes of financial assets [axis]" } } }, "localname": "ClassesOfFinancialAssetsAxis", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsNetDebtDetails", "http://www.smith-nephew.com/role/DisclosureCashFlowStatementAnalysisOfNetDebtDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementCreditRiskExposuresDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementFairValueDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementInterestBearingAssetsDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_ClassesOfFinancialInstrumentsAxis": { "auth_ref": [ "r313", "r316", "r317", "r319" ], "lang": { "en": { "role": { "documentation": "The axis of a table defines the relationship between the members in the table and the line items or concepts that complete the table." } }, "en-us": { "role": { "label": "Classes of financial instruments [axis]" } } }, "localname": "ClassesOfFinancialInstrumentsAxis", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementForeignExchangeExposuresDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementHedgeDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_ClassesOfFinancialInstrumentsMember": { "auth_ref": [ "r313", "r316", "r317", "r319" ], "lang": { "en": { "role": { "documentation": "This member stands for aggregated classes of financial instruments. Financial instruments are contracts that give rise to a financial asset of one entity and a financial liability or equity instrument of another entity. It also represents the standard value for the 'Classes of financial instruments' axis if no other member is used. [Refer: Financial assets; Financial liabilities]" } }, "en-us": { "role": { "label": "Financial instruments, class [member]" } } }, "localname": "ClassesOfFinancialInstrumentsMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementForeignExchangeExposuresDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementHedgeDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_ClassesOfFinancialLiabilitiesAxis": { "auth_ref": [ "r322", "r323", "r355", "r369" ], "lang": { "en": { "role": { "documentation": "The axis of a table defines the relationship between the members in the table and the line items or concepts that complete the table." } }, "en-us": { "role": { "label": "Classes of financial liabilities [axis]" } } }, "localname": "ClassesOfFinancialLiabilitiesAxis", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementFairValueDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementInterestBearingLiabilitiesDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillAxis": { "auth_ref": [ "r183" ], "lang": { "en": { "role": { "documentation": "The axis of a table defines the relationship between the members in the table and the line items or concepts that complete the table." } }, "en-us": { "role": { "label": "Classes of intangible assets other than goodwill [axis]" } } }, "localname": "ClassesOfIntangibleAssetsOtherThanGoodwillAxis", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails", "http://www.smith-nephew.com/role/DisclosureIntangibleAssetsDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_ClassesOfInventoriesAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "INVENTORIES" } } }, "localname": "ClassesOfInventoriesAbstract", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "xbrltype": "stringItemType" }, "ifrs-full_ClassesOfLiabilitiesAxis": { "auth_ref": [ "r248" ], "lang": { "en": { "role": { "documentation": "The axis of a table defines the relationship between the members in the table and the line items or concepts that complete the table." } }, "en-us": { "role": { "label": "Classes of liabilities [axis]" } } }, "localname": "ClassesOfLiabilitiesAxis", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashFlowStatementAnalysisOfNetDebtDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementMovementOfFinancialInstrumentsDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis": { "auth_ref": [ "r88" ], "lang": { "en": { "role": { "documentation": "The axis of a table defines the relationship between the members in the table and the line items or concepts that complete the table." } }, "en-us": { "role": { "label": "Classes of property, plant and equipment [axis]" } } }, "localname": "ClassesOfPropertyPlantAndEquipmentAxis", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureInventoriesDetails", "http://www.smith-nephew.com/role/DisclosurePropertyPlantAndEquipmentDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_ClassesOfProvisionsAxis": { "auth_ref": [ "r171" ], "lang": { "en": { "role": { "documentation": "The axis of a table defines the relationship between the members in the table and the line items or concepts that complete the table." } }, "en-us": { "role": { "label": "Classes of other provisions [axis]" } } }, "localname": "ClassesOfProvisionsAxis", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBasisOfPreparationDetails", "http://www.smith-nephew.com/role/DisclosureEarningsPerOrdinaryShareCalculationOfBasicDilutedAndAdjustedEarningsPerShareDetails", "http://www.smith-nephew.com/role/DisclosureInventoriesDetails", "http://www.smith-nephew.com/role/DisclosureProvisionsAndContingenciesChangesInProvisionsDetails", "http://www.smith-nephew.com/role/DisclosureProvisionsAndContingenciesCurrentAndNonCurrentProvisionsDetails", "http://www.smith-nephew.com/role/DisclosureProvisionsAndContingenciesLegalProceedingsDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_ClassesOfShareCapitalAxis": { "auth_ref": [ "r40" ], "lang": { "en": { "role": { "documentation": "The axis of a table defines the relationship between the members in the table and the line items or concepts that complete the table." } }, "en-us": { "role": { "label": "Classes of share capital [axis]" } } }, "localname": "ClassesOfShareCapitalAxis", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEquityDividendsDetails", "http://www.smith-nephew.com/role/DisclosureEquityShareCapitalDetails", "http://www.smith-nephew.com/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "stringItemType" }, "ifrs-full_ClassesOfShareCapitalMember": { "auth_ref": [ "r40" ], "lang": { "en": { "role": { "documentation": "This member stands for share capital of the entity. It also represents the standard value for the 'Classes of share capital' axis if no other member is used." } }, "en-us": { "role": { "label": "Share capital [member]" } } }, "localname": "ClassesOfShareCapitalMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEquityDividendsDetails", "http://www.smith-nephew.com/role/DisclosureEquityShareCapitalDetails", "http://www.smith-nephew.com/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "domainItemType" }, "ifrs-full_ClosingForeignExchangeRate": { "auth_ref": [ "r12" ], "lang": { "en": { "role": { "documentation": "The spot exchange rate at the end of the reporting period. Exchange rate is the ratio of exchange for two currencies. Spot exchange rate is the exchange rate for immediate delivery." } }, "en-us": { "role": { "label": "Closing foreign exchange rate", "terseLabel": "Year end rates" } } }, "localname": "ClosingForeignExchangeRate", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBasisOfPreparationDetails" ], "xbrltype": "decimalItemType" }, "ifrs-full_ComponentsOfEquityAxis": { "auth_ref": [ "r9" ], "lang": { "en": { "role": { "documentation": "The axis of a table defines the relationship between the members in the table and the line items or concepts that complete the table." } }, "en-us": { "role": { "label": "Components of equity [axis]" } } }, "localname": "ComponentsOfEquityAxis", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEquityEquityComponentsDetails", "http://www.smith-nephew.com/role/DisclosureEquityShareCapitalDetails", "http://www.smith-nephew.com/role/DisclosureEquitySharesBuyBackDetails", "http://www.smith-nephew.com/role/DisclosureEquityTreasurySharesDetails", "http://www.smith-nephew.com/role/StatementGroupStatementOfChangesInEquity" ], "xbrltype": "stringItemType" }, "ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Components of other comprehensive income that will be reclassified to profit or loss, net of tax [abstract]", "terseLabel": "Items that may be reclassified subsequently to income statement" } } }, "localname": "ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/StatementGroupStatementOfComprehensiveIncome" ], "xbrltype": "stringItemType" }, "ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTaxAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Components of other comprehensive income that will not be reclassified to profit or loss, net of tax [abstract]", "terseLabel": "Items that will not be reclassified to income statement" } } }, "localname": "ComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTaxAbstract", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/StatementGroupStatementOfComprehensiveIncome" ], "xbrltype": "stringItemType" }, "ifrs-full_ComprehensiveIncome": { "auth_ref": [ "r4", "r45", "r220", "r222", "r229", "r235" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureInvestmentsInAssociatesSummarisedStatementOfComprehensiveIncomeDetails": { "order": null, "parentTag": null, "root": true, "weight": null }, "http://www.smith-nephew.com/role/StatementGroupStatementOfComprehensiveIncome": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en": { "role": { "documentation": "The amount of change in equity resulting from transactions and other events, other than those changes resulting from transactions with owners in their capacity as owners." } }, "en-us": { "role": { "label": "Comprehensive income", "totalLabel": "Total comprehensive income for the year" } } }, "localname": "ComprehensiveIncome", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureInvestmentsInAssociatesSummarisedStatementOfComprehensiveIncomeDetails", "http://www.smith-nephew.com/role/StatementGroupStatementOfComprehensiveIncome" ], "xbrltype": "monetaryItemType" }, "ifrs-full_ComputerSoftwareMember": { "auth_ref": [ "r184" ], "lang": { "en": { "role": { "documentation": "This member stands for a class of intangible assets representing computer software. [Refer: Intangible assets other than goodwill]" } }, "en-us": { "role": { "label": "Software" } } }, "localname": "ComputerSoftwareMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureIntangibleAssetsDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_ConsiderationPaidReceived": { "auth_ref": [ "r214" ], "crdr": "credit", "lang": { "en": { "role": { "documentation": "The amount of consideration paid or received in respect of both obtaining and losing control of subsidiaries or other businesses. [Refer: Subsidiaries [member]]" } }, "en-us": { "role": { "label": "Consideration paid (received)", "terseLabel": "Consideration paid" } } }, "localname": "ConsiderationPaidReceived", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementFairValueDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_ConstructionInProgressMember": { "auth_ref": [ "r79" ], "lang": { "en": { "role": { "documentation": "This member stands for expenditure capitalised during the construction of items of property, plant and equipment that are not yet available for use (ie not yet in the location and condition necessary for it to be capable of operating in the manner intended by the management). [Refer: Property, plant and equipment]" } }, "en-us": { "role": { "label": "Assets in course of construction" } } }, "localname": "ConstructionInProgressMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosurePropertyPlantAndEquipmentDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_ContingentConsiderationMember": { "auth_ref": [ "r249" ], "lang": { "en": { "role": { "documentation": "This member stands for an obligation of the acquirer to transfer additional assets or equity interests to the former owners of an acquiree as part of the exchange for control of the acquiree if specified future events occur or conditions are met." } }, "en-us": { "role": { "label": "Contingent consideration receivable" } } }, "localname": "ContingentConsiderationMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementFairValueDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementMovementOfFinancialInstrumentsDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_ContingentConsiderationRecognisedAsOfAcquisitionDate": { "auth_ref": [ "r284" ], "crdr": "credit", "lang": { "en": { "role": { "documentation": "The amount, at acquisition date, of contingent consideration arrangements recognised as consideration transferred in a business combination. [Refer: Business combinations [member]]" } }, "en-us": { "role": { "label": "Contingent consideration arrangements and indemnification assets recognised as of acquisition date", "terseLabel": "Contingent consideration" } } }, "localname": "ContingentConsiderationRecognisedAsOfAcquisitionDate", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails", "http://www.smith-nephew.com/role/DisclosurePostBalanceSheetEventsDetails", "http://www.smith-nephew.com/role/DisclosureTradeAndOtherPayablesDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_ContractLiabilities": { "auth_ref": [ "r255", "r259" ], "crdr": "credit", "lang": { "en": { "role": { "documentation": "The amount of an entity\u2019s obligation to transfer goods or services to a customer for which the entity has received consideration (or the amount is due) from the customer." } }, "en-us": { "role": { "label": "Contract liabilities", "terseLabel": "Accrual for rebates" } } }, "localname": "ContractLiabilities", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_ContributionsToPlanByEmployerNetDefinedBenefitLiabilityAsset": { "auth_ref": [ "r107" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsReconciliationOfBenefitObligationsAndPensionAssetsDetails": { "order": 1.0, "parentTag": "ifrs-full_ContributionsToPlanNetDefinedBenefitLiabilityAsset", "weight": 1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The decrease (increase) in net defined benefit liability (asset) resulting from contributions to a defined benefit plan by the employer. [Refer: Net defined benefit liability (asset); Defined benefit plans [member]]" } }, "en-us": { "role": { "label": "Contributions to plan by employer, net defined benefit liability (asset)", "terseLabel": "Employer contributions" } } }, "localname": "ContributionsToPlanByEmployerNetDefinedBenefitLiabilityAsset", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsReconciliationOfBenefitObligationsAndPensionAssetsDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_ContributionsToPlanByPlanParticipantsNetDefinedBenefitLiabilityAsset": { "auth_ref": [ "r107" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsReconciliationOfBenefitObligationsAndPensionAssetsDetails": { "order": 2.0, "parentTag": "ifrs-full_ContributionsToPlanNetDefinedBenefitLiabilityAsset", "weight": 1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The decrease (increase) in the net defined benefit liability (asset) resulting from contributions to a defined benefit plan by plan participants. [Refer: Net defined benefit liability (asset); Defined benefit plans [member]]" } }, "en-us": { "role": { "label": "Contributions to plan by plan participants, net defined benefit liability (asset)", "terseLabel": "Employee contributions" } } }, "localname": "ContributionsToPlanByPlanParticipantsNetDefinedBenefitLiabilityAsset", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsReconciliationOfBenefitObligationsAndPensionAssetsDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_ContributionsToPlanNetDefinedBenefitLiabilityAsset": { "auth_ref": [ "r107" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsReconciliationOfBenefitObligationsAndPensionAssetsDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The decrease (increase) in the net defined benefit liability (asset) resulting from contributions to a defined benefit plan. [Refer: Net defined benefit liability (asset); Defined benefit plans [member]]" } }, "en-us": { "role": { "label": "Contributions to plan, net defined benefit liability (asset)", "totalLabel": "Net cash" } } }, "localname": "ContributionsToPlanNetDefinedBenefitLiabilityAsset", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsReconciliationOfBenefitObligationsAndPensionAssetsDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_CostOfInventoriesRecognisedAsExpenseDuringPeriod": { "auth_ref": [ "r128" ], "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount of inventories recognised as an expense during the period. [Refer: Inventories]" } }, "en-us": { "role": { "label": "Cost of inventories recognised as expense during period", "terseLabel": "Cost of inventories recognised as an expense and included in cost of goods sold" } } }, "localname": "CostOfInventoriesRecognisedAsExpenseDuringPeriod", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureInventoriesDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_CostOfSales": { "auth_ref": [ "r2", "r57" ], "calculation": { "http://www.smith-nephew.com/role/StatementGroupIncomeStatement": { "order": 2.0, "parentTag": "ifrs-full_GrossProfit", "weight": -1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount of all expenses directly or indirectly attributed to the goods or services sold. Attributed expenses include, but are not limited to, costs previously included in the measurement of inventory that has now been sold, such as depreciation and maintenance of factory buildings and equipment used in the production process, unallocated production overheads, and abnormal amounts of production costs of inventories." } }, "en-us": { "role": { "label": "Cost of sales", "negatedLabel": "Cost of goods sold" } } }, "localname": "CostOfSales", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureOperatingProfitDetails", "http://www.smith-nephew.com/role/StatementGroupIncomeStatement" ], "xbrltype": "monetaryItemType" }, "ifrs-full_CountryOfDomicileMember": { "auth_ref": [ "r351", "r352" ], "lang": { "en": { "role": { "documentation": "This member stands for the country in which the entity is registered and where it has its legal address or registered office." } }, "en-us": { "role": { "label": "UK" } } }, "localname": "CountryOfDomicileMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEarningsPerOrdinaryShareCalculationOfBasicDilutedAndAdjustedEarningsPerShareDetails", "http://www.smith-nephew.com/role/DisclosureTaxationFactorsAffectingFutureTaxChargesDetails", "http://www.smith-nephew.com/role/DisclosureTaxationTaxationAttributableToGroupDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_CreditRiskMember": { "auth_ref": [ "r310", "r360", "r361", "r362" ], "lang": { "en": { "role": { "documentation": "This member stands for the risk that one party to a financial instrument will cause a financial loss for the other party by failing to discharge an obligation. [Refer: Financial instruments, class [member]]" } }, "en-us": { "role": { "label": "Credit risk" } } }, "localname": "CreditRiskMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementCreditRiskExposuresDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_CurrencyRiskMember": { "auth_ref": [ "r340", "r360", "r361", "r362", "r363" ], "lang": { "en": { "role": { "documentation": "This member stands for a type of market risk representing the risk that the fair value or future cash flows of a financial instrument will fluctuate because of changes in foreign exchange rates. [Refer: Financial instruments, class [member]]" } }, "en-us": { "role": { "label": "Currency risk" } } }, "localname": "CurrencyRiskMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementForeignExchangeExposuresDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementHedgeDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementNetInvestmentHedgeDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_CurrencySwapContractMember": { "auth_ref": [ "r12" ], "lang": { "en": { "role": { "documentation": "This member stands for a currency swap contract. [Refer: Swap contract [member]]" } }, "en-us": { "role": { "label": "Currency swaps" } } }, "localname": "CurrencySwapContractMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashFlowStatementAnalysisOfNetDebtDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementFairValueDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementInterestBearingAssetsDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementInterestBearingLiabilitiesDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_CurrentAndDeferredTaxRelatingToItemsChargedOrCreditedDirectlyToEquity": { "auth_ref": [ "r69" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureTaxationTaxationAttributableToGroupDetails": { "order": 3.0, "parentTag": "snn_IncomeTaxExpenseRelatingToContinuingOperationsComponentsOfOtherComprehensiveIncomeAndItemsChargedOrCreditedDirectlyToEquity", "weight": 1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The aggregate current and deferred tax relating to particular items that are charged or credited directly to equity, for example: (a) an adjustment to the opening balance of retained earnings resulting from either a change in accounting policy that is applied retrospectively or the correction of an error; and (b) amounts arising on initial recognition of the equity component of a compound financial instrument. [Refer: Deferred tax relating to items credited (charged) directly to equity; Retained earnings; Financial instruments, class [member]]" } }, "en-us": { "role": { "label": "Current and deferred tax relating to items credited (charged) directly to equity", "terseLabel": "Taxation in equity" } } }, "localname": "CurrentAndDeferredTaxRelatingToItemsChargedOrCreditedDirectlyToEquity", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationTaxationAttributableToGroupDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_CurrentAssets": { "auth_ref": [ "r31", "r229", "r231" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureInvestmentsInAssociatesSummarisedBalanceSheetDetails": { "order": 2.0, "parentTag": "ifrs-full_NetAssetsLiabilities", "weight": 1.0 }, "http://www.smith-nephew.com/role/StatementGroupBalanceSheet": { "order": 1.0, "parentTag": "ifrs-full_Assets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount of assets that the entity (a) expects to realise or intends to sell or consume in its normal operating cycle; (b) holds primarily for the purpose of trading; (c) expects to realise within twelve months after the reporting period; or (d) classifies as cash or cash equivalents (as defined in IAS 7) unless the asset is restricted from being exchanged or used to settle a liability for at least twelve months after the reporting period. [Refer: Assets]" } }, "en-us": { "role": { "label": "Current assets", "totalLabel": "Total current assets" } } }, "localname": "CurrentAssets", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureInvestmentsInAssociatesSummarisedBalanceSheetDetails", "http://www.smith-nephew.com/role/StatementGroupBalanceSheet" ], "xbrltype": "monetaryItemType" }, "ifrs-full_CurrentAssetsAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Current assets [abstract]", "terseLabel": "Current assets" } } }, "localname": "CurrentAssetsAbstract", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/StatementGroupBalanceSheet" ], "xbrltype": "stringItemType" }, "ifrs-full_CurrentDerivativeFinancialAssets": { "auth_ref": [ "r27" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureTradeAndOtherReceivablesDetails": { "order": 2.0, "parentTag": "ifrs-full_TradeAndOtherCurrentReceivables", "weight": 1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount of current derivative financial assets. [Refer: Derivative financial assets]" } }, "en-us": { "role": { "label": "Current derivative financial assets", "terseLabel": "Derivatives - forward foreign exchange, currency swaps and interest rate contracts" } } }, "localname": "CurrentDerivativeFinancialAssets", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTradeAndOtherReceivablesDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_CurrentDerivativeFinancialLiabilities": { "auth_ref": [ "r27" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureTradeAndOtherPayablesDetails": { "order": 2.0, "parentTag": "ifrs-full_TradeAndOtherCurrentPayables", "weight": 1.0 } }, "crdr": "credit", "lang": { "en": { "role": { "documentation": "The amount of current derivative financial liabilities. [Refer: Derivative financial liabilities]" } }, "en-us": { "role": { "label": "Current derivative financial liabilities", "verboseLabel": "Derivatives - forward foreign exchange, currency swaps and interest rate contracts" } } }, "localname": "CurrentDerivativeFinancialLiabilities", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTradeAndOtherPayablesDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_CurrentLeaseLiabilities": { "auth_ref": [ "r266" ], "crdr": "credit", "lang": { "en": { "role": { "documentation": "The amount of current lease liabilities. [Refer: Lease liabilities]" } }, "en-us": { "role": { "label": "Current lease liabilities" } } }, "localname": "CurrentLeaseLiabilities", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsNetDebtDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_CurrentLiabilities": { "auth_ref": [ "r33", "r229", "r233" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureInvestmentsInAssociatesSummarisedBalanceSheetDetails": { "order": 4.0, "parentTag": "ifrs-full_NetAssetsLiabilities", "weight": -1.0 }, "http://www.smith-nephew.com/role/StatementGroupBalanceSheet": { "order": 2.0, "parentTag": "ifrs-full_Liabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en": { "role": { "documentation": "Expiry date 2023-01-01: The amount of liabilities that: (a) the entity expects to settle in its normal operating cycle; (b) the entity holds primarily for the purpose of trading; (c) are due to be settled within twelve months after the reporting period; or (d) the entity does not have an unconditional right to defer settlement for at least twelve months after the reporting period.\nEffective 2023-01-01: The amount of liabilities that: (a) the entity expects to settle in its normal operating cycle; (b) the entity holds primarily for the purpose of trading; (c) are due to be settled within twelve months after the reporting period; or (d) the entity does not have the right at the end of the reporting period to defer settlement for at least twelve months after the reporting period." } }, "en-us": { "role": { "label": "Current liabilities", "negatedLabel": "Current liabilities", "totalLabel": "Total current liabilities" } } }, "localname": "CurrentLiabilities", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureInvestmentsInAssociatesSummarisedBalanceSheetDetails", "http://www.smith-nephew.com/role/StatementGroupBalanceSheet" ], "xbrltype": "monetaryItemType" }, "ifrs-full_CurrentLiabilitiesAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Current liabilities [abstract]", "terseLabel": "Current liabilities" } } }, "localname": "CurrentLiabilitiesAbstract", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/StatementGroupBalanceSheet" ], "xbrltype": "stringItemType" }, "ifrs-full_CurrentMaterialsAndSuppliesToBeConsumedInProductionProcessOrRenderingServices": { "auth_ref": [ "r129" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureInventoriesDetails": { "order": 1.0, "parentTag": "ifrs-full_Inventories", "weight": 1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "A classification of current inventory representing the amount of materials and supplies to be consumed in a production process or while rendering services. [Refer: Inventories]" } }, "en-us": { "role": { "label": "Current materials and supplies to be consumed in production process or rendering services", "terseLabel": "Raw materials and consumables" } } }, "localname": "CurrentMaterialsAndSuppliesToBeConsumedInProductionProcessOrRenderingServices", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureInventoriesDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_CurrentMember": { "auth_ref": [ "r318", "r337", "r386" ], "lang": { "en": { "role": { "documentation": "This member stands for a current time band." } }, "en-us": { "role": { "label": "Neither past due nor impaired" } } }, "localname": "CurrentMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTradeAndOtherReceivablesTradeReceivablesPastDueDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_CurrentProvisions": { "auth_ref": [ "r22" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureProvisionsAndContingenciesCurrentAndNonCurrentProvisionsDetails": { "order": 1.0, "parentTag": "ifrs-full_Provisions", "weight": 1.0 }, "http://www.smith-nephew.com/role/StatementGroupBalanceSheet": { "order": 2.0, "parentTag": "ifrs-full_CurrentLiabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en": { "role": { "documentation": "The amount of current provisions, including provisions for employee benefits. [Refer: Provisions]" } }, "en-us": { "role": { "label": "Current provisions", "terseLabel": "Provisions", "verboseLabel": "Provisions - due within one year" } } }, "localname": "CurrentProvisions", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureProvisionsAndContingenciesCurrentAndNonCurrentProvisionsDetails", "http://www.smith-nephew.com/role/StatementGroupBalanceSheet" ], "xbrltype": "monetaryItemType" }, "ifrs-full_CurrentReceivablesFromTaxesOtherThanIncomeTax": { "auth_ref": [ "r35" ], "calculation": { "http://www.smith-nephew.com/role/StatementGroupBalanceSheet": { "order": 4.0, "parentTag": "ifrs-full_CurrentAssets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount of current receivables from taxes other than income tax. [Refer: Receivables from taxes other than income tax]" } }, "en-us": { "role": { "label": "Current receivables from taxes other than income tax", "terseLabel": "Current tax receivable" } } }, "localname": "CurrentReceivablesFromTaxesOtherThanIncomeTax", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/StatementGroupBalanceSheet" ], "xbrltype": "monetaryItemType" }, "ifrs-full_CurrentServiceCostNetDefinedBenefitLiabilityAsset": { "auth_ref": [ "r100" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsReconciliationOfBenefitObligationsAndPensionAssetsDetails": { "order": 1.0, "parentTag": "snn_CostRecognisedInIncomeStatementNetDefinedBenefitLiabilityAsset", "weight": 1.0 } }, "crdr": "credit", "lang": { "en": { "role": { "documentation": "The increase (decrease) in the net defined benefit liability (asset) resulting from employee service in the current period. [Refer: Net defined benefit liability (asset)]" } }, "en-us": { "role": { "label": "Current service cost, net defined benefit liability (asset)", "negatedLabel": "Current service cost" } } }, "localname": "CurrentServiceCostNetDefinedBenefitLiabilityAsset", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsReconciliationOfBenefitObligationsAndPensionAssetsDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_CurrentTaxExpenseIncome": { "auth_ref": [ "r63" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureTaxationTaxationAttributableToGroupDetails": { "order": 1.0, "parentTag": "ifrs-full_CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriods", "weight": 1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount of income taxes payable (recoverable) in respect of the taxable profit (tax loss) for a period." } }, "en-us": { "role": { "label": "Current tax expense (income)", "totalLabel": "Current income tax charge" } } }, "localname": "CurrentTaxExpenseIncome", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationTaxationAttributableToGroupDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriods": { "auth_ref": [ "r68" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureTaxationTaxationAttributableToGroupDetails": { "order": 1.0, "parentTag": "ifrs-full_IncomeTaxExpenseContinuingOperations", "weight": 1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount of current tax expense (income) and adjustments for the current tax of prior periods. [Refer: Current tax expense (income); Adjustments for current tax of prior periods]" } }, "en-us": { "role": { "label": "Current tax expense (income) and adjustments for current tax of prior periods", "totalLabel": "Total current taxation" } } }, "localname": "CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriods", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationTaxationAttributableToGroupDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriodsAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Current tax expense (income) and adjustments for current tax of prior periods [abstract]", "terseLabel": "Current taxation:" } } }, "localname": "CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriodsAbstract", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationTaxationAttributableToGroupDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_CurrentTaxLiabilitiesCurrent": { "auth_ref": [ "r23" ], "calculation": { "http://www.smith-nephew.com/role/StatementGroupBalanceSheet": { "order": 3.0, "parentTag": "ifrs-full_CurrentLiabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en": { "role": { "documentation": "The current amount of current tax liabilities. [Refer: Current tax liabilities]" } }, "en-us": { "role": { "label": "Current tax liabilities, current", "terseLabel": "Current tax payable" } } }, "localname": "CurrentTaxLiabilitiesCurrent", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/StatementGroupBalanceSheet" ], "xbrltype": "monetaryItemType" }, "ifrs-full_CurrentTradeReceivables": { "auth_ref": [ "r32", "r35" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureTradeAndOtherReceivablesDetails": { "order": 1.0, "parentTag": "ifrs-full_TradeAndOtherCurrentReceivables", "weight": 1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount of current trade receivables. [Refer: Trade receivables]" } }, "en-us": { "role": { "label": "Current trade receivables", "terseLabel": "Trade receivables - net", "totalLabel": "Trade receivables - net" } } }, "localname": "CurrentTradeReceivables", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTradeAndOtherReceivablesDetails", "http://www.smith-nephew.com/role/DisclosureTradeAndOtherReceivablesTradeReceivablesDenominatedInMajorCurrenciesDetails", "http://www.smith-nephew.com/role/DisclosureTradeAndOtherReceivablesTradeReceivablesPastDueDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_CustomerrelatedIntangibleAssetsMember": { "auth_ref": [ "r186" ], "lang": { "en": { "role": { "documentation": "This member stands for a class of intangible assets representing assets related to customers. Such assets may include customer lists, order or production backlog, customer contracts and related customer relationships as well as non-contractual customer relationships." } }, "en-us": { "role": { "label": "Customer and distribution related" } } }, "localname": "CustomerrelatedIntangibleAssetsMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails", "http://www.smith-nephew.com/role/DisclosureIntangibleAssetsDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_DecreaseIncreaseThroughTaxOnSharebasedPaymentTransactions": { "auth_ref": [ "r8" ], "crdr": "debit", "lang": { "en": { "role": { "documentation": "The decrease (increase) in equity resulting from tax on transactions in which the entity: (a) receives goods or services from the supplier of those goods or services (including an employee) in a share-based payment arrangement; or (b) incurs an obligation to settle the transaction with the supplier in a share-based payment arrangement when another group entity receives those goods or services. [Refer: Share-based payment arrangements [member]]" } }, "en-us": { "role": { "label": "Decrease (increase) through tax on share-based payment transactions, equity", "negatedLabel": "Taxation on share-based payments" } } }, "localname": "DecreaseIncreaseThroughTaxOnSharebasedPaymentTransactions", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/StatementGroupStatementOfChangesInEquity" ], "xbrltype": "monetaryItemType" }, "ifrs-full_DeferredTaxAssets": { "auth_ref": [ "r24", "r28", "r73" ], "calculation": { "http://www.smith-nephew.com/role/StatementGroupBalanceSheet": { "order": 1.0, "parentTag": "ifrs-full_NoncurrentAssets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amounts of income taxes recoverable in future periods in respect of: (a) deductible temporary differences; (b) the carryforward of unused tax losses; and (c) the carryforward of unused tax credits. [Refer: Temporary differences [member]; Unused tax credits [member]; Unused tax losses [member]]" } }, "en-us": { "role": { "label": "Deferred tax assets", "terseLabel": "Deferred tax assets" } } }, "localname": "DeferredTaxAssets", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationDeferredTaxationDetails", "http://www.smith-nephew.com/role/DisclosureTaxationFactorsAffectingFutureTaxChargesDetails", "http://www.smith-nephew.com/role/StatementGroupBalanceSheet" ], "xbrltype": "monetaryItemType" }, "ifrs-full_DeferredTaxExpenseIncome": { "auth_ref": [ "r74" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureTaxationTaxationAttributableToGroupDetails": { "order": 2.0, "parentTag": "ifrs-full_IncomeTaxExpenseContinuingOperations", "weight": 1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount of tax expense (income) relating to changes in deferred tax liabilities and deferred tax assets. [Refer: Deferred tax assets; Deferred tax liabilities]" } }, "en-us": { "role": { "label": "Deferred tax expense (income)", "totalLabel": "Total deferred taxation" } } }, "localname": "DeferredTaxExpenseIncome", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationTaxationAttributableToGroupDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_DeferredTaxExpenseIncomeAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Deferred tax expense (income) [abstract]", "terseLabel": "Deferred taxation:" } } }, "localname": "DeferredTaxExpenseIncomeAbstract", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationTaxationAttributableToGroupDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_DeferredTaxExpenseIncomeRecognisedInProfitOrLoss": { "auth_ref": [ "r74" ], "lang": { "en": { "role": { "documentation": "The amount of tax expense or income relating to changes in deferred tax liabilities and deferred tax assets, recognised in profit or loss. [Refer: Deferred tax assets; Deferred tax expense (income); Deferred tax liabilities]" } }, "en-us": { "role": { "label": "Deferred tax expense (income) recognised in profit or loss", "negatedLabel": "Movement in income statement - current year" } } }, "localname": "DeferredTaxExpenseIncomeRecognisedInProfitOrLoss", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationDeferredTaxationDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_DeferredTaxExpenseIncomeRelatingToOriginationAndReversalOfTemporaryDifferences": { "auth_ref": [ "r65" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureTaxationTaxationAttributableToGroupDetails": { "order": 1.0, "parentTag": "ifrs-full_DeferredTaxExpenseIncome", "weight": 1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount of deferred tax expense or income relating to the creation or reversal of temporary differences. [Refer: Temporary differences [member]; Deferred tax expense (income)]" } }, "en-us": { "role": { "label": "Deferred tax expense (income) relating to origination and reversal of temporary differences", "terseLabel": "Origination and reversal of temporary differences" } } }, "localname": "DeferredTaxExpenseIncomeRelatingToOriginationAndReversalOfTemporaryDifferences", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationTaxationAttributableToGroupDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_DeferredTaxExpenseIncomeRelatingToTaxRateChangesOrImpositionOfNewTaxes": { "auth_ref": [ "r66" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureTaxationTaxationAttributableToGroupDetails": { "order": 2.0, "parentTag": "ifrs-full_DeferredTaxExpenseIncome", "weight": 1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount of deferred tax expense or income relating to tax rate changes or the imposition of new taxes. [Refer: Deferred tax expense (income)]" } }, "en-us": { "role": { "label": "Deferred tax expense (income) relating to tax rate changes or imposition of new taxes", "terseLabel": "Changes in tax rates" } } }, "localname": "DeferredTaxExpenseIncomeRelatingToTaxRateChangesOrImpositionOfNewTaxes", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationTaxationAttributableToGroupDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_DeferredTaxLiabilities": { "auth_ref": [ "r24", "r28", "r73" ], "calculation": { "http://www.smith-nephew.com/role/StatementGroupBalanceSheet": { "order": 2.0, "parentTag": "ifrs-full_NoncurrentLiabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en": { "role": { "documentation": "The amounts of income taxes payable in future periods in respect of taxable temporary differences. [Refer: Temporary differences [member]]" } }, "en-us": { "role": { "label": "Deferred tax liabilities", "negatedLabel": "Deferred tax liabilities", "terseLabel": "Deferred tax liabilities" } } }, "localname": "DeferredTaxLiabilities", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationDeferredTaxationDetails", "http://www.smith-nephew.com/role/StatementGroupBalanceSheet" ], "xbrltype": "monetaryItemType" }, "ifrs-full_DeferredTaxLiabilityAsset": { "auth_ref": [ "r73" ], "crdr": "credit", "lang": { "en": { "role": { "documentation": "The amount of deferred tax liabilities or assets. [Refer: Deferred tax liabilities; Deferred tax assets]" } }, "en-us": { "role": { "label": "Deferred tax liability (asset)", "negatedPeriodEndLabel": "Balance at the end of the period", "negatedPeriodStartLabel": "Balance at the beginning of the period" } } }, "localname": "DeferredTaxLiabilityAsset", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationDeferredTaxationDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_DeferredTaxRelatingToItemsChargedOrCreditedDirectlyToEquity": { "auth_ref": [ "r69" ], "lang": { "en": { "role": { "documentation": "The amount of deferred tax related to items credited (charged) directly to equity. [Refer: Deferred tax expense (income)]" } }, "en-us": { "role": { "label": "Deferred tax relating to items credited (charged) directly to equity", "negatedLabel": "Movement in equity" } } }, "localname": "DeferredTaxRelatingToItemsChargedOrCreditedDirectlyToEquity", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationDeferredTaxationDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_DefinedBenefitPlansAxis": { "auth_ref": [ "r96" ], "lang": { "en": { "role": { "documentation": "The axis of a table defines the relationship between the members in the table and the line items or concepts that complete the table." } }, "en-us": { "role": { "label": "Defined benefit plans [axis]" } } }, "localname": "DefinedBenefitPlansAxis", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsDetails", "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsPlanAssetsDetails", "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsPrincipalActuarialAssumptionsDetails", "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsReconciliationOfBenefitObligationsAndPensionAssetsDetails", "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsSensitivityAnalysisDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_DefinedBenefitPlansMember": { "auth_ref": [ "r96" ], "lang": { "en": { "role": { "documentation": "This member stands for post-employment benefit plans other than defined contribution plans. Defined contribution plans are post-employment benefit plans under which an entity pays fixed contributions into a separate entity (a fund) and will have no legal or constructive obligation to pay further contributions if the fund does not hold sufficient assets to pay all employee benefits relating to employee service in the current and prior periods. It also represents the standard value for the 'Defined benefit plans' axis if no other member is used." } }, "en-us": { "role": { "label": "Defined benefit plans [member]" } } }, "localname": "DefinedBenefitPlansMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsDetails", "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsPlanAssetsDetails", "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsPrincipalActuarialAssumptionsDetails", "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsReconciliationOfBenefitObligationsAndPensionAssetsDetails", "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsSensitivityAnalysisDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_DepreciationAmortisationAndImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss": { "auth_ref": [ "r12" ], "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount of depreciation expense, amortisation expense and impairment loss (reversal of impairment loss) recognised in profit or loss. [Refer: Depreciation and amortisation expense; Impairment loss (reversal of impairment loss) recognised in profit or loss]" } }, "en-us": { "role": { "label": "Depreciation, amortisation and impairment loss (reversal of impairment loss) recognised in profit or loss", "verboseLabel": "Amortisation and impairment of acquired intangibles" } } }, "localname": "DepreciationAmortisationAndImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureIntangibleAssetsDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_DepreciationPropertyPlantAndEquipment": { "auth_ref": [ "r85", "r89" ], "lang": { "en": { "role": { "documentation": "The amount of depreciation of property, plant and equipment. [Refer: Depreciation and amortisation expense; Property, plant and equipment]" } }, "en-us": { "role": { "label": "Depreciation, property, plant and equipment", "terseLabel": "Depreciation of property, plant and equipment", "verboseLabel": "Charges" } } }, "localname": "DepreciationPropertyPlantAndEquipment", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureOperatingProfitDetails", "http://www.smith-nephew.com/role/DisclosurePropertyPlantAndEquipmentDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_DepreciationRightofuseAssets": { "auth_ref": [ "r267" ], "lang": { "en": { "role": { "documentation": "The amount of depreciation of right-of-use assets. [Refer: Depreciation and amortisation expense; Right-of-use assets]" } }, "en-us": { "role": { "label": "Depreciation, right-of-use assets", "terseLabel": "Depreciation of right-of-use assets", "verboseLabel": "Depreciation charge in the year" } } }, "localname": "DepreciationRightofuseAssets", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureOperatingProfitDetails", "http://www.smith-nephew.com/role/DisclosurePropertyPlantAndEquipmentDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_DerivativeFinancialLiabilities": { "auth_ref": [ "r27" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsNetDebtDetails": { "order": 1.0, "parentTag": "ifrs-full_NetDebt", "weight": 1.0 } }, "crdr": "credit", "lang": { "en": { "role": { "documentation": "The amount of financial liabilities classified as derivative instruments. [Refer: Financial assets; Derivatives [member]]" } }, "en-us": { "role": { "label": "Derivative financial liabilities", "terseLabel": "Credit balance on derivatives" } } }, "localname": "DerivativeFinancialLiabilities", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsNetDebtDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_DerivativesMember": { "auth_ref": [ "r249", "r252", "r323", "r339" ], "lang": { "en": { "role": { "documentation": "This member stands for financial instruments or other contracts within the scope of IFRS 9 with all three of the following characteristics: (a) Their value changes in response to the change in a specified interest rate, financial instrument price, commodity price, foreign exchange rate, index of prices or rates, credit rating or credit index, or other variable, provided in the case of a non-financial variable that the variable is not specific to a party to the contract (sometimes called the \u2018underlying\u2019); (b) They require no initial net investment or an initial net investment that is smaller than would be required for other types of contracts that would be expected to have a similar response to changes in market factors; (c) They are settled at a future date. [Refer: Financial instruments, class [member]]" } }, "en-us": { "role": { "label": "Derivatives" } } }, "localname": "DerivativesMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementCreditRiskExposuresDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_DescriptionOfAccountingPolicyForAvailableforsaleFinancialAssetsExplanatory": { "auth_ref": [ "r375" ], "lang": { "en": { "role": { "documentation": "The description of the entity's accounting policy for available-for-sale financial assets. [Refer: Financial assets available-for-sale]" } }, "en-us": { "role": { "label": "Description of accounting policy for available-for-sale financial assets [text block]", "terseLabel": "INVESTMENTS" } } }, "localname": "DescriptionOfAccountingPolicyForAvailableforsaleFinancialAssetsExplanatory", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "ifrs-full_DescriptionOfAccountingPolicyForBusinessCombinationsExplanatory": { "auth_ref": [ "r14" ], "lang": { "en": { "role": { "documentation": "The description of the entity's accounting policy for business combinations. [Refer: Business combinations [member]]" } }, "en-us": { "role": { "label": "Description of accounting policy for business combinations [text block]", "terseLabel": "ACQUISITIONS AND DISPOSALS" } } }, "localname": "DescriptionOfAccountingPolicyForBusinessCombinationsExplanatory", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "ifrs-full_DescriptionOfAccountingPolicyForCashFlowsExplanatory": { "auth_ref": [ "r14" ], "lang": { "en": { "role": { "documentation": "The description of the entity's accounting policy for cash flows." } }, "en-us": { "role": { "label": "Description of accounting policy for cash flows [text block]", "terseLabel": "CASH FLOW STATEMENT" } } }, "localname": "DescriptionOfAccountingPolicyForCashFlowsExplanatory", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "ifrs-full_DescriptionOfAccountingPolicyForDerivativeFinancialInstrumentsExplanatory": { "auth_ref": [ "r14" ], "lang": { "en": { "role": { "documentation": "The description of the entity's accounting policy for derivative financial instruments. [Refer: Financial instruments, class [member]; Derivatives [member]]" } }, "en-us": { "role": { "label": "Description of accounting policy for derivative financial instruments [text block]", "terseLabel": "DERIVATIVE FINANCIAL INSTRUMENTS" } } }, "localname": "DescriptionOfAccountingPolicyForDerivativeFinancialInstrumentsExplanatory", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "ifrs-full_DescriptionOfAccountingPolicyForEarningsPerShareExplanatory": { "auth_ref": [ "r14" ], "lang": { "en": { "role": { "documentation": "The description of the entity's accounting policy for earnings per share." } }, "en-us": { "role": { "label": "Description of accounting policy for earnings per share [text block]", "terseLabel": "EARNINGS PER SHARE" } } }, "localname": "DescriptionOfAccountingPolicyForEarningsPerShareExplanatory", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "ifrs-full_DescriptionOfAccountingPolicyForFairValueMeasurementExplanatory": { "auth_ref": [ "r14" ], "lang": { "en": { "role": { "documentation": "The description of the entity's accounting policy for fair value measurement. [Refer: At fair value [member]]" } }, "en-us": { "role": { "label": "Description of accounting policy for fair value measurement [text block]", "terseLabel": "MEASUREMENT OF FAIR VALUES" } } }, "localname": "DescriptionOfAccountingPolicyForFairValueMeasurementExplanatory", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "ifrs-full_DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatory": { "auth_ref": [ "r14" ], "lang": { "en": { "role": { "documentation": "The description of the entity's accounting policy for foreign currency translation." } }, "en-us": { "role": { "label": "Description of accounting policy for foreign currency translation [text block]", "terseLabel": "FOREIGN CURRENCIES" } } }, "localname": "DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatory", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "ifrs-full_DescriptionOfAccountingPolicyForGoodwillExplanatory": { "auth_ref": [ "r14" ], "lang": { "en": { "role": { "documentation": "The description of the entity's accounting policy for goodwill. [Refer: Goodwill]" } }, "en-us": { "role": { "label": "Description of accounting policy for goodwill [text block]", "terseLabel": "GOODWILL" } } }, "localname": "DescriptionOfAccountingPolicyForGoodwillExplanatory", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "ifrs-full_DescriptionOfAccountingPolicyForImpairmentOfAssetsExplanatory": { "auth_ref": [ "r14" ], "lang": { "en": { "role": { "documentation": "The description of the entity's accounting policy for the impairment of assets." } }, "en-us": { "role": { "label": "Description of accounting policy for impairment of assets [text block]", "terseLabel": "IMPAIRMENT OF ASSETS" } } }, "localname": "DescriptionOfAccountingPolicyForImpairmentOfAssetsExplanatory", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "ifrs-full_DescriptionOfAccountingPolicyForIncomeTaxExplanatory": { "auth_ref": [ "r14" ], "lang": { "en": { "role": { "documentation": "The description of the entity's accounting policy for income tax." } }, "en-us": { "role": { "label": "Description of accounting policy for income tax [text block]", "terseLabel": "TAXATION" } } }, "localname": "DescriptionOfAccountingPolicyForIncomeTaxExplanatory", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "ifrs-full_DescriptionOfAccountingPolicyForIntangibleAssetsOtherThanGoodwillExplanatory": { "auth_ref": [ "r14" ], "lang": { "en": { "role": { "documentation": "The description of the entity's accounting policy for intangible assets other than goodwill. [Refer: Intangible assets other than goodwill]" } }, "en-us": { "role": { "label": "Description of accounting policy for intangible assets other than goodwill [text block]", "terseLabel": "INTANGIBLE ASSETS" } } }, "localname": "DescriptionOfAccountingPolicyForIntangibleAssetsOtherThanGoodwillExplanatory", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "ifrs-full_DescriptionOfAccountingPolicyForInvestmentInAssociates": { "auth_ref": [ "r14" ], "lang": { "en": { "role": { "documentation": "The description of the entity's accounting policy for investments in associates. [Refer: Associates [member]]" } }, "en-us": { "role": { "label": "Description of accounting policy for investment in associates [text block]", "terseLabel": "INVESTMENTS IN ASSOCIATES" } } }, "localname": "DescriptionOfAccountingPolicyForInvestmentInAssociates", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "ifrs-full_DescriptionOfAccountingPolicyForMeasuringInventories": { "auth_ref": [ "r126" ], "lang": { "en": { "role": { "documentation": "The description of the entity's accounting policy for measuring inventories. [Refer: Inventories]" } }, "en-us": { "role": { "label": "Description of accounting policy for measuring inventories [text block]", "terseLabel": "INVENTORIES" } } }, "localname": "DescriptionOfAccountingPolicyForMeasuringInventories", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "ifrs-full_DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory": { "auth_ref": [ "r14" ], "lang": { "en": { "role": { "documentation": "The description of the entity's accounting policy for property, plant and equipment. [Refer: Property, plant and equipment]" } }, "en-us": { "role": { "label": "Description of accounting policy for property, plant and equipment [text block]", "terseLabel": "PROPERTY, PLANT AND EQUIPMENT" } } }, "localname": "DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "ifrs-full_DescriptionOfAccountingPolicyForRecognitionOfRevenue": { "auth_ref": [ "r14" ], "lang": { "en": { "role": { "documentation": "The description of the entity's accounting policy for recognising revenue. [Refer: Revenue]" } }, "en-us": { "role": { "label": "Description of accounting policy for recognition of revenue [text block]", "terseLabel": "REVENUE" } } }, "localname": "DescriptionOfAccountingPolicyForRecognitionOfRevenue", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "ifrs-full_DescriptionOfAccountingPolicyForSharebasedPaymentTransactionsExplanatory": { "auth_ref": [ "r14" ], "lang": { "en": { "role": { "documentation": "The description of the entity's accounting policy for transactions in which the entity: (a) receives goods or services from the supplier of those goods or services (including an employee) in a share-based payment arrangement; or (b) incurs an obligation to settle the transaction with the supplier in a share-based payment arrangement when another group entity receives those goods or services. [Refer: Share-based payment arrangements [member]]" } }, "en-us": { "role": { "label": "Description of accounting policy for share-based payment transactions [text block]", "terseLabel": "SHARE-BASED PAYMENTS" } } }, "localname": "DescriptionOfAccountingPolicyForSharebasedPaymentTransactionsExplanatory", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "ifrs-full_DescriptionOfAccountingPolicyForTerminationBenefits": { "auth_ref": [ "r14" ], "lang": { "en": { "role": { "documentation": "The description of the entity's accounting policy for termination benefits. [Refer: Termination benefits expense]" } }, "en-us": { "role": { "label": "Description of accounting policy for termination benefits [text block]", "terseLabel": "RETIREMENT BENEFIT OBLIGATIONS" } } }, "localname": "DescriptionOfAccountingPolicyForTerminationBenefits", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "ifrs-full_DescriptionOfAccountingPolicyForTradeAndOtherReceivablesExplanatory": { "auth_ref": [ "r14" ], "lang": { "en": { "role": { "documentation": "The description of the entity's accounting policy for trade and other receivables. [Refer: Trade and other receivables]" } }, "en-us": { "role": { "label": "Description of accounting policy for trade and other receivables [text block]", "terseLabel": "TRADE AND OTHER RECEIVABLES" } } }, "localname": "DescriptionOfAccountingPolicyForTradeAndOtherReceivablesExplanatory", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "ifrs-full_DescriptionOfDiscountRatesAppliedToCashFlowProjections": { "auth_ref": [ "r162", "r164" ], "lang": { "en": { "role": { "documentation": "The discount rate applied to cash flow projections for a cash-generating unit (group of units). [Refer: Cash-generating units [member]]" } }, "en-us": { "role": { "label": "Discount rate applied to cash flow projections", "terseLabel": "Pre-tax discount rate" } } }, "localname": "DescriptionOfDiscountRatesAppliedToCashFlowProjections", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureGoodwillDetails", "http://www.smith-nephew.com/role/DisclosureIntangibleAssetsDetails" ], "xbrltype": "percentItemType" }, "ifrs-full_DescriptionOfGrowthRateUsedToExtrapolateCashFlowProjections": { "auth_ref": [ "r161", "r163" ], "lang": { "en": { "role": { "documentation": "The growth rate used to extrapolate cash flow projections beyond the period covered by the most recent budgets/forecasts for a cash-generating unit (group of units). [Refer: Cash-generating units [member]]" } }, "en-us": { "role": { "label": "Growth rate used to extrapolate cash flow projections", "terseLabel": "Revenue growth rates" } } }, "localname": "DescriptionOfGrowthRateUsedToExtrapolateCashFlowProjections", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureGoodwillDetails" ], "xbrltype": "percentItemType" }, "ifrs-full_DilutedEarningsLossPerShare": { "auth_ref": [ "r150", "r151" ], "lang": { "en": { "role": { "documentation": "The amount of profit (loss) attributable to ordinary equity holders of the parent entity (the numerator), divided by the weighted average number of ordinary shares outstanding during the period (the denominator), both adjusted for the effects of all dilutive potential ordinary shares. [Refer: Ordinary shares [member]; Weighted average [member]]" } }, "en-us": { "role": { "label": "Diluted earnings (loss) per share", "terseLabel": "Diluted" } } }, "localname": "DilutedEarningsLossPerShare", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEarningsPerOrdinaryShareEarningsPerOrdinaryShareDetails", "http://www.smith-nephew.com/role/StatementGroupIncomeStatement" ], "xbrltype": "perShareItemType" }, "ifrs-full_DilutiveEffectOfShareOptionsOnNumberOfOrdinaryShares": { "auth_ref": [ "r152" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureEarningsPerOrdinaryShareEarningsPerOrdinaryShareDetails": { "order": 2.0, "parentTag": "ifrs-full_AdjustedWeightedAverageShares", "weight": 1.0 } }, "lang": { "en": { "role": { "documentation": "The number of dilutive potential ordinary shares that relate to the assumed exercise of the entity's share options." } }, "en-us": { "role": { "label": "Dilutive effect of share options on number of ordinary shares", "terseLabel": "Dilutive impact of share options outstanding" } } }, "localname": "DilutiveEffectOfShareOptionsOnNumberOfOrdinaryShares", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEarningsPerOrdinaryShareEarningsPerOrdinaryShareDetails" ], "xbrltype": "sharesItemType" }, "ifrs-full_DisclosureOfBasisOfConsolidationExplanatory": { "auth_ref": [ "r0" ], "lang": { "en": { "role": { "documentation": "The disclosure of the basis used for consolidation." } }, "en-us": { "role": { "label": "Disclosure of basis of consolidation [text block]", "terseLabel": "CONSOLIDATION" } } }, "localname": "DisclosureOfBasisOfConsolidationExplanatory", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "ifrs-full_DisclosureOfBasisOfPreparationOfFinancialStatementsExplanatory": { "auth_ref": [ "r0" ], "lang": { "en": { "role": { "documentation": "The disclosure of the basis used for the preparation of the financial statements." } }, "en-us": { "role": { "label": "Disclosure of basis of preparation of financial statements [text block]", "terseLabel": "BASIS OF PREPARATION" } } }, "localname": "DisclosureOfBasisOfPreparationOfFinancialStatementsExplanatory", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBasisOfPreparation" ], "xbrltype": "textBlockItemType" }, "ifrs-full_DisclosureOfBorrowingsExplanatory": { "auth_ref": [ "r0" ], "lang": { "en": { "role": { "documentation": "The disclosure of borrowings. [Refer: Borrowings]" } }, "en-us": { "role": { "label": "Disclosure of borrowings [text block]", "terseLabel": "CASH AND BORROWINGS" } } }, "localname": "DisclosureOfBorrowingsExplanatory", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashAndBorrowings" ], "xbrltype": "textBlockItemType" }, "ifrs-full_DisclosureOfBusinessCombinationsLineItems": { "auth_ref": [], "lang": { "en": { "role": { "documentation": "Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table." } }, "en-us": { "role": { "label": "Disclosure of detailed information about business combination [line items]" } } }, "localname": "DisclosureOfBusinessCombinationsLineItems", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_DisclosureOfBusinessCombinationsTable": { "auth_ref": [ "r290" ], "lang": { "en": { "role": { "documentation": "Schedule disclosing information related to details of business combinations." } }, "en-us": { "role": { "label": "Disclosure of detailed information about business combination [table]" } } }, "localname": "DisclosureOfBusinessCombinationsTable", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails", "http://www.smith-nephew.com/role/DisclosureAcquisitionsTables" ], "xbrltype": "stringItemType" }, "ifrs-full_DisclosureOfCashFlowStatementExplanatory": { "auth_ref": [ "r218" ], "lang": { "en": { "role": { "documentation": "The entire disclosure for a statement of cash flows." } }, "en-us": { "role": { "label": "Disclosure of cash flow statement [text block]", "terseLabel": "CASH FLOW STATEMENT" } } }, "localname": "DisclosureOfCashFlowStatementExplanatory", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashFlowStatement" ], "xbrltype": "textBlockItemType" }, "ifrs-full_DisclosureOfClassesOfShareCapitalExplanatory": { "auth_ref": [ "r40" ], "lang": { "en": { "role": { "documentation": "The disclosure of classes of share capital. [Refer: Share capital [member]]" } }, "en-us": { "role": { "label": "Disclosure of classes of share capital [text block]", "terseLabel": "Schedule of share capital" } } }, "localname": "DisclosureOfClassesOfShareCapitalExplanatory", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEquityTable" ], "xbrltype": "textBlockItemType" }, "ifrs-full_DisclosureOfClassesOfShareCapitalLineItems": { "auth_ref": [], "lang": { "en": { "role": { "documentation": "Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table." } }, "en-us": { "role": { "label": "Disclosure of classes of share capital [line items]", "terseLabel": "Share capital", "verboseLabel": "Equity" } } }, "localname": "DisclosureOfClassesOfShareCapitalLineItems", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEquityDividendsDetails", "http://www.smith-nephew.com/role/DisclosureEquityShareCapitalDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_DisclosureOfClassesOfShareCapitalTable": { "auth_ref": [ "r40" ], "lang": { "en": { "role": { "documentation": "Schedule disclosing information related to classes of share capital." } }, "en-us": { "role": { "label": "Disclosure of classes of share capital [table]" } } }, "localname": "DisclosureOfClassesOfShareCapitalTable", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEquityDividendsDetails", "http://www.smith-nephew.com/role/DisclosureEquityShareCapitalDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_DisclosureOfCreditRiskExposureLineItems": { "auth_ref": [], "lang": { "en": { "role": { "documentation": "Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table." } }, "en-us": { "role": { "label": "Disclosure of credit risk exposure [line items]", "terseLabel": "Credit risk" } } }, "localname": "DisclosureOfCreditRiskExposureLineItems", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementCreditRiskExposuresDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_DisclosureOfCreditRiskExposureTable": { "auth_ref": [ "r317" ], "lang": { "en": { "role": { "documentation": "Schedule disclosing information related to the credit risk exposure." } }, "en-us": { "role": { "label": "Disclosure of credit risk exposure [table]" } } }, "localname": "DisclosureOfCreditRiskExposureTable", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementCreditRiskExposuresDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_DisclosureOfDeferredTaxesExplanatory": { "auth_ref": [ "r0" ], "lang": { "en": { "role": { "documentation": "The disclosure of deferred taxes. [Refer: Deferred tax liabilities; Deferred tax assets]" } }, "en-us": { "role": { "label": "Disclosure of deferred taxes [text block]", "terseLabel": "Schedule of movements in the main components of deferred tax assets and liabilities" } } }, "localname": "DisclosureOfDeferredTaxesExplanatory", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationTables" ], "xbrltype": "textBlockItemType" }, "ifrs-full_DisclosureOfDefinedBenefitPlansAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "RETIREMENT BENEFIT OBLIGATIONS" } } }, "localname": "DisclosureOfDefinedBenefitPlansAbstract", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "xbrltype": "stringItemType" }, "ifrs-full_DisclosureOfDefinedBenefitPlansExplanatory": { "auth_ref": [ "r96" ], "lang": { "en": { "role": { "documentation": "The disclosure of defined benefit plans. [Refer: Defined benefit plans [member]]" } }, "en-us": { "role": { "label": "Disclosure of defined benefit plans [text block]", "terseLabel": "Schedule of the Group's retirement benefit obligations" } } }, "localname": "DisclosureOfDefinedBenefitPlansExplanatory", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsTable" ], "xbrltype": "textBlockItemType" }, "ifrs-full_DisclosureOfDefinedBenefitPlansLineItems": { "auth_ref": [], "lang": { "en": { "role": { "documentation": "Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table." } }, "en-us": { "role": { "label": "Disclosure of defined benefit plans [line items]" } } }, "localname": "DisclosureOfDefinedBenefitPlansLineItems", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsDetails", "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsPrincipalActuarialAssumptionsDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_DisclosureOfDefinedBenefitPlansTable": { "auth_ref": [ "r96" ], "lang": { "en": { "role": { "documentation": "Schedule disclosing information related to defined benefit plans." } }, "en-us": { "role": { "label": "Disclosure of defined benefit plans [table]" } } }, "localname": "DisclosureOfDefinedBenefitPlansTable", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsDetails", "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsPrincipalActuarialAssumptionsDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "CASH AND BORROWINGS" } } }, "localname": "DisclosureOfDetailedInformationAboutBorrowingsAbstract", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "xbrltype": "stringItemType" }, "ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsExplanatory": { "auth_ref": [ "r324" ], "lang": { "en": { "role": { "documentation": "The disclosure of detailed information about borrowings. [Refer: Borrowings]" } }, "en-us": { "role": { "label": "Disclosure of detailed information about borrowings [text block]", "terseLabel": "Schedule of committed facility" } } }, "localname": "DisclosureOfDetailedInformationAboutBorrowingsExplanatory", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsTables" ], "xbrltype": "textBlockItemType" }, "ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems": { "auth_ref": [], "lang": { "en": { "role": { "documentation": "Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table." } }, "en-us": { "role": { "label": "Disclosure of detailed information about borrowings [line items]" } } }, "localname": "DisclosureOfDetailedInformationAboutBorrowingsLineItems", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsBorrowingsAreRepayableDetails", "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsLiquidityAndCapitalResourcesDetails", "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsLiquidityRiskExposuresDetails", "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsNetDebtDetails", "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsYearEndFinancialLiabilitiesByContractualMaturityDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsTable": { "auth_ref": [ "r324" ], "lang": { "en": { "role": { "documentation": "Schedule disclosing information related to details of borrowings." } }, "en-us": { "role": { "label": "Disclosure of detailed information about borrowings [table]" } } }, "localname": "DisclosureOfDetailedInformationAboutBorrowingsTable", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsBorrowingsAreRepayableDetails", "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsLiquidityAndCapitalResourcesDetails", "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsLiquidityRiskExposuresDetails", "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsNetDebtDetails", "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsYearEndFinancialLiabilitiesByContractualMaturityDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_DisclosureOfDetailedInformationAboutFinancialInstrumentsExplanatory": { "auth_ref": [ "r309", "r316", "r324" ], "lang": { "en": { "role": { "documentation": "The disclosure of detailed information about financial instruments. [Refer: Financial instruments, class [member]]" } }, "en-us": { "role": { "label": "Disclosure of detailed information about financial instruments [text block]" } } }, "localname": "DisclosureOfDetailedInformationAboutFinancialInstrumentsExplanatory", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureInvestmentsTables" ], "xbrltype": "textBlockItemType" }, "ifrs-full_DisclosureOfDetailedInformationAboutHedgedItemsLineItems": { "auth_ref": [], "lang": { "en": { "role": { "documentation": "Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table." } }, "en-us": { "role": { "label": "Disclosure of detailed information about hedged items [line items]" } } }, "localname": "DisclosureOfDetailedInformationAboutHedgedItemsLineItems", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementNetInvestmentHedgeDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_DisclosureOfDetailedInformationAboutHedgedItemsTable": { "auth_ref": [ "r304" ], "lang": { "en": { "role": { "documentation": "Schedule disclosing information related to details of hedged items." } }, "en-us": { "role": { "label": "Disclosure of detailed information about hedged items [table]" } } }, "localname": "DisclosureOfDetailedInformationAboutHedgedItemsTable", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementNetInvestmentHedgeDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_DisclosureOfDetailedInformationAboutHedgingInstrumentsExplanatory": { "auth_ref": [ "r303" ], "lang": { "en": { "role": { "documentation": "The disclosure of detailed information about hedging instruments. [Refer: Hedging instruments [member]]" } }, "en-us": { "role": { "label": "Disclosure of detailed information about hedging instruments [text block]", "terseLabel": "Schedule of items designated as hedging instruments" } } }, "localname": "DisclosureOfDetailedInformationAboutHedgingInstrumentsExplanatory", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementTable" ], "xbrltype": "textBlockItemType" }, "ifrs-full_DisclosureOfDetailedInformationAboutHedgingInstrumentsLineItems": { "auth_ref": [], "lang": { "en": { "role": { "documentation": "Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table." } }, "en-us": { "role": { "label": "Disclosure of detailed information about hedging instruments [line items]", "terseLabel": "Items designated as hedging instruments" } } }, "localname": "DisclosureOfDetailedInformationAboutHedgingInstrumentsLineItems", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementHedgeDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_DisclosureOfDetailedInformationAboutHedgingInstrumentsTable": { "auth_ref": [ "r303" ], "lang": { "en": { "role": { "documentation": "Schedule disclosing information related to details of hedging instruments." } }, "en-us": { "role": { "label": "Disclosure of detailed information about hedging instruments [table]" } } }, "localname": "DisclosureOfDetailedInformationAboutHedgingInstrumentsTable", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementHedgeDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_DisclosureOfDetailedInformationAboutIntangibleAssetsExplanatory": { "auth_ref": [ "r183" ], "lang": { "en": { "role": { "documentation": "The disclosure of detailed information about intangible assets. [Refer: Intangible assets other than goodwill]" } }, "en-us": { "role": { "label": "Disclosure of detailed information about intangible assets [text block]", "terseLabel": "Schedule of intangible assets" } } }, "localname": "DisclosureOfDetailedInformationAboutIntangibleAssetsExplanatory", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureIntangibleAssetsTables" ], "xbrltype": "textBlockItemType" }, "ifrs-full_DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory": { "auth_ref": [ "r88" ], "lang": { "en": { "role": { "documentation": "The disclosure of detailed information about property, plant and equipment. [Refer: Property, plant and equipment]" } }, "en-us": { "role": { "label": "Disclosure of detailed information about property, plant and equipment [text block]", "terseLabel": "Schedule of property, plant and equipment cost less accumulated depreciation or impairment losses" } } }, "localname": "DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosurePropertyPlantAndEquipmentTables" ], "xbrltype": "textBlockItemType" }, "ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersExplanatory": { "auth_ref": [ "r257" ], "lang": { "en": { "role": { "documentation": "The disclosure of the disaggregation of revenue from contracts with customers. [Refer: Revenue from contracts with customers]" } }, "en-us": { "role": { "label": "Disclosure of disaggregation of revenue from contracts with customers [text block]", "terseLabel": "Disaggregation of revenue" } } }, "localname": "DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersExplanatory", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationTables" ], "xbrltype": "textBlockItemType" }, "ifrs-full_DisclosureOfDividendsExplanatory": { "auth_ref": [ "r0" ], "lang": { "en": { "role": { "documentation": "The disclosure of dividends. Dividends are distributions of profits to holders of equity investments in proportion to their holdings of a particular class of capital." } }, "en-us": { "role": { "label": "Disclosure of dividends [text block]", "terseLabel": "Schedule of dividends" } } }, "localname": "DisclosureOfDividendsExplanatory", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEquityTable" ], "xbrltype": "textBlockItemType" }, "ifrs-full_DisclosureOfEarningsPerShareExplanatory": { "auth_ref": [ "r153" ], "lang": { "en": { "role": { "documentation": "The entire disclosure for earnings per share." } }, "en-us": { "role": { "label": "Disclosure of earnings per share [text block]", "terseLabel": "EARNINGS PER ORDINARY SHARE" } } }, "localname": "DisclosureOfEarningsPerShareExplanatory", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEarningsPerOrdinaryShare" ], "xbrltype": "textBlockItemType" }, "ifrs-full_DisclosureOfEffectOfChangesInForeignExchangeRatesExplanatory": { "auth_ref": [ "r132" ], "lang": { "en": { "role": { "documentation": "The entire disclosure for the effect of changes in foreign exchange rates." } }, "en-us": { "role": { "label": "Disclosure of effect of changes in foreign exchange rates [text block]", "terseLabel": "The exchange rates used for the translation of currencies" } } }, "localname": "DisclosureOfEffectOfChangesInForeignExchangeRatesExplanatory", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBasisOfPreparationTables" ], "xbrltype": "textBlockItemType" }, "ifrs-full_DisclosureOfEmployeeBenefitsExplanatory": { "auth_ref": [ "r125" ], "lang": { "en": { "role": { "documentation": "The entire disclosure for employee benefits." } }, "en-us": { "role": { "label": "Disclosure of employee benefits [text block]", "terseLabel": "RETIREMENT BENEFIT OBLIGATIONS" } } }, "localname": "DisclosureOfEmployeeBenefitsExplanatory", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligations" ], "xbrltype": "textBlockItemType" }, "ifrs-full_DisclosureOfEntitysReportableSegmentsExplanatory": { "auth_ref": [ "r354" ], "lang": { "en": { "role": { "documentation": "The entire disclosure for operating segments." } }, "en-us": { "role": { "label": "Disclosure of entity's operating segments [text block]", "terseLabel": "BUSINESS SEGMENT INFORMATION" } } }, "localname": "DisclosureOfEntitysReportableSegmentsExplanatory", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformation" ], "xbrltype": "textBlockItemType" }, "ifrs-full_DisclosureOfEventsAfterReportingPeriodExplanatory": { "auth_ref": [ "r61" ], "lang": { "en": { "role": { "documentation": "The entire disclosure for events after the reporting period." } }, "en-us": { "role": { "label": "Disclosure of events after reporting period [text block]", "terseLabel": "POST BALANCE SHEET EVENTS" } } }, "localname": "DisclosureOfEventsAfterReportingPeriodExplanatory", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosurePostBalanceSheetEvents" ], "xbrltype": "textBlockItemType" }, "ifrs-full_DisclosureOfExpensesExplanatory": { "auth_ref": [ "r0" ], "lang": { "en": { "role": { "documentation": "The disclosure of expenses." } }, "en-us": { "role": { "label": "Disclosure of expenses [text block]", "terseLabel": "Schedule of expenses" } } }, "localname": "DisclosureOfExpensesExplanatory", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureOperatingProfitTables" ], "xbrltype": "textBlockItemType" }, "ifrs-full_DisclosureOfFairValueOfFinancialInstrumentsExplanatory": { "auth_ref": [ "r0" ], "lang": { "en": { "role": { "documentation": "The disclosure of the fair value of financial instruments. [Refer: Financial instruments, class [member]; At fair value [member]]" } }, "en-us": { "role": { "label": "Disclosure of fair value of financial instruments explanatory", "terseLabel": "Schedule of fair value of financial instruments" } } }, "localname": "DisclosureOfFairValueOfFinancialInstrumentsExplanatory", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementTable" ], "xbrltype": "textBlockItemType" }, "ifrs-full_DisclosureOfFairValueOfPlanAssetsExplanatory": { "auth_ref": [ "r113" ], "lang": { "en": { "role": { "documentation": "The disclosure of the fair value of defined benefit plan assets. [Refer: Plan assets [member]; Defined benefit plans [member]]" } }, "en-us": { "role": { "label": "Disclosure of fair value of plan assets [text block]", "terseLabel": "Market value of the US, UK and Other Plans assets" } } }, "localname": "DisclosureOfFairValueOfPlanAssetsExplanatory", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsTable" ], "xbrltype": "textBlockItemType" }, "ifrs-full_DisclosureOfFairValueOfPlanAssetsLineItems": { "auth_ref": [], "lang": { "en": { "role": { "documentation": "Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table." } }, "en-us": { "role": { "label": "Disclosure of fair value of plan assets [line items]" } } }, "localname": "DisclosureOfFairValueOfPlanAssetsLineItems", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsPlanAssetsDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_DisclosureOfFairValueOfPlanAssetsTable": { "auth_ref": [ "r113" ], "lang": { "en": { "role": { "documentation": "Schedule disclosing information related to the fair value of defined benefit plan assets." } }, "en-us": { "role": { "label": "Disclosure of fair value of plan assets [table]" } } }, "localname": "DisclosureOfFairValueOfPlanAssetsTable", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsPlanAssetsDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_DisclosureOfFinanceIncomeExpenseExplanatory": { "auth_ref": [ "r0" ], "lang": { "en": { "role": { "documentation": "The disclosure of finance income (cost). [Refer: Finance income (cost)]" } }, "en-us": { "role": { "label": "Disclosure of finance income (cost) [text block]", "terseLabel": "Schedule of interest and other finance costs" } } }, "localname": "DisclosureOfFinanceIncomeExpenseExplanatory", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureInterestAndOtherFinanceCostsTables" ], "xbrltype": "textBlockItemType" }, "ifrs-full_DisclosureOfFinancialAssetsExplanatory": { "auth_ref": [ "r324" ], "lang": { "en": { "role": { "documentation": "The disclosure of financial assets. [Refer: Financial assets]" } }, "en-us": { "role": { "label": "Disclosure of financial assets [text block]", "terseLabel": "Currency and interest rate profile of interest bearing assets" } } }, "localname": "DisclosureOfFinancialAssetsExplanatory", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementTable" ], "xbrltype": "textBlockItemType" }, "ifrs-full_DisclosureOfFinancialAssetsLineItems": { "auth_ref": [], "lang": { "en": { "role": { "documentation": "Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table." } }, "en-us": { "role": { "label": "Disclosure of financial assets [line items]", "terseLabel": "Interest bearing assets" } } }, "localname": "DisclosureOfFinancialAssetsLineItems", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementInterestBearingAssetsDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_DisclosureOfFinancialAssetsTable": { "auth_ref": [ "r324" ], "lang": { "en": { "role": { "documentation": "Schedule disclosing information related to financial assets." } }, "en-us": { "role": { "label": "Disclosure of financial assets [table]" } } }, "localname": "DisclosureOfFinancialAssetsTable", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementInterestBearingAssetsDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_DisclosureOfFinancialInstrumentsAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "FINANCIAL INSTRUMENTS AND RISK MANAGEMENT" } } }, "localname": "DisclosureOfFinancialInstrumentsAbstract", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "xbrltype": "stringItemType" }, "ifrs-full_DisclosureOfFinancialInstrumentsAtFairValueThroughProfitOrLossExplanatory": { "auth_ref": [ "r0" ], "lang": { "en": { "role": { "documentation": "The disclosure of financial instruments measured at fair value through profit or loss. [Refer: At fair value [member]; Financial instruments, class [member]]" } }, "en-us": { "role": { "label": "Disclosure of financial instruments at fair value through profit or loss [text block]", "terseLabel": "INVESTMENTS" } } }, "localname": "DisclosureOfFinancialInstrumentsAtFairValueThroughProfitOrLossExplanatory", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureInvestments" ], "xbrltype": "textBlockItemType" }, "ifrs-full_DisclosureOfFinancialInstrumentsLineItems": { "auth_ref": [], "lang": { "en": { "role": { "documentation": "Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table." } }, "en-us": { "role": { "label": "Disclosure of detailed information about financial instruments [line items]", "terseLabel": "Measurement of fair values" } } }, "localname": "DisclosureOfFinancialInstrumentsLineItems", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementFairValueDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementMovementOfFinancialInstrumentsDetails", "http://www.smith-nephew.com/role/DisclosureInvestmentsDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_DisclosureOfFinancialInstrumentsTable": { "auth_ref": [ "r309", "r316", "r324" ], "lang": { "en": { "role": { "documentation": "Schedule disclosing information related to details of financial instruments." } }, "en-us": { "role": { "label": "Disclosure of detailed information about financial instruments [table]" } } }, "localname": "DisclosureOfFinancialInstrumentsTable", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementFairValueDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementMovementOfFinancialInstrumentsDetails", "http://www.smith-nephew.com/role/DisclosureInvestmentsDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_DisclosureOfFinancialLiabilitiesExplanatory": { "auth_ref": [ "r324" ], "lang": { "en": { "role": { "documentation": "The disclosure of financial liabilities. [Refer: Financial liabilities]" } }, "en-us": { "role": { "label": "Disclosure of financial liabilities [text block]", "terseLabel": "Currency and interest rate profile of interest bearing liabilities" } } }, "localname": "DisclosureOfFinancialLiabilitiesExplanatory", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementTable" ], "xbrltype": "textBlockItemType" }, "ifrs-full_DisclosureOfFinancialLiabilitiesLineItems": { "auth_ref": [], "lang": { "en": { "role": { "documentation": "Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table." } }, "en-us": { "role": { "label": "Disclosure of financial liabilities [line items]", "terseLabel": "Interest bearing liabilities" } } }, "localname": "DisclosureOfFinancialLiabilitiesLineItems", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementInterestBearingLiabilitiesDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_DisclosureOfFinancialLiabilitiesTable": { "auth_ref": [ "r324" ], "lang": { "en": { "role": { "documentation": "Schedule disclosing information related to financial liabilities." } }, "en-us": { "role": { "label": "Disclosure of financial liabilities [table]" } } }, "localname": "DisclosureOfFinancialLiabilitiesTable", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementInterestBearingLiabilitiesDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_DisclosureOfFinancialRiskManagementExplanatory": { "auth_ref": [ "r0" ], "lang": { "en": { "role": { "documentation": "The disclosure of the entity's financial risk management practices and policies." } }, "en-us": { "role": { "label": "Disclosure of financial risk management [text block]", "terseLabel": "FINANCIAL INSTRUMENTS AND RISK MANAGEMENT" } } }, "localname": "DisclosureOfFinancialRiskManagementExplanatory", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagement" ], "xbrltype": "textBlockItemType" }, "ifrs-full_DisclosureOfGeographicalAreasLineItems": { "auth_ref": [], "lang": { "en": { "role": { "documentation": "Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table." } }, "en-us": { "role": { "label": "Disclosure of geographical areas [line items]" } } }, "localname": "DisclosureOfGeographicalAreasLineItems", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationFactorsAffectingFutureTaxChargesDetails", "http://www.smith-nephew.com/role/DisclosureTaxationTaxationAttributableToGroupDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_DisclosureOfGeographicalAreasTable": { "auth_ref": [ "r353" ], "lang": { "en": { "role": { "documentation": "Schedule disclosing information related to geographical areas." } }, "en-us": { "role": { "label": "Disclosure of geographical areas [table]" } } }, "localname": "DisclosureOfGeographicalAreasTable", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationFactorsAffectingFutureTaxChargesDetails", "http://www.smith-nephew.com/role/DisclosureTaxationTaxationAttributableToGroupDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_DisclosureOfGoodwillExplanatory": { "auth_ref": [ "r0" ], "lang": { "en": { "role": { "documentation": "The disclosure of goodwill. [Refer: Goodwill]" } }, "en-us": { "role": { "label": "Disclosure of goodwill [text block]", "terseLabel": "GOODWILL" } } }, "localname": "DisclosureOfGoodwillExplanatory", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureGoodwill" ], "xbrltype": "textBlockItemType" }, "ifrs-full_DisclosureOfIncomeTaxExplanatory": { "auth_ref": [ "r77" ], "lang": { "en": { "role": { "documentation": "The entire disclosure for income taxes." } }, "en-us": { "role": { "label": "Disclosure of income tax [text block]", "terseLabel": "TAXATION" } } }, "localname": "DisclosureOfIncomeTaxExplanatory", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxation" ], "xbrltype": "textBlockItemType" }, "ifrs-full_DisclosureOfIntangibleAssetsAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "INTANGIBLE ASSETS" } } }, "localname": "DisclosureOfIntangibleAssetsAbstract", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "xbrltype": "stringItemType" }, "ifrs-full_DisclosureOfIntangibleAssetsExplanatory": { "auth_ref": [ "r189" ], "lang": { "en": { "role": { "documentation": "The entire disclosure for intangible assets." } }, "en-us": { "role": { "label": "Disclosure of intangible assets [text block]", "terseLabel": "INTANGIBLE ASSETS" } } }, "localname": "DisclosureOfIntangibleAssetsExplanatory", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureIntangibleAssets" ], "xbrltype": "textBlockItemType" }, "ifrs-full_DisclosureOfIntangibleAssetsLineItems": { "auth_ref": [], "lang": { "en": { "role": { "documentation": "Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table." } }, "en-us": { "role": { "label": "Disclosure of detailed information about intangible assets [line items]" } } }, "localname": "DisclosureOfIntangibleAssetsLineItems", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureIntangibleAssetsDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_DisclosureOfIntangibleAssetsTable": { "auth_ref": [ "r183" ], "lang": { "en": { "role": { "documentation": "Schedule disclosing information related to details of intangible assets." } }, "en-us": { "role": { "label": "Disclosure of detailed information about intangible assets [table]" } } }, "localname": "DisclosureOfIntangibleAssetsTable", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureIntangibleAssetsDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_DisclosureOfInterestsInAssociatesExplanatory": { "auth_ref": [ "r226" ], "lang": { "en": { "role": { "documentation": "The disclosure of interests in associates. [Refer: Associates [member]]" } }, "en-us": { "role": { "label": "Disclosure of interests in associates [text block]", "terseLabel": "INVESTMENTS IN ASSOCIATES" } } }, "localname": "DisclosureOfInterestsInAssociatesExplanatory", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureInvestmentsInAssociates" ], "xbrltype": "textBlockItemType" }, "ifrs-full_DisclosureOfInventoriesExplanatory": { "auth_ref": [ "r130" ], "lang": { "en": { "role": { "documentation": "The entire disclosure for inventories." } }, "en-us": { "role": { "label": "Disclosure of inventories [text block]", "terseLabel": "INVENTORIES" } } }, "localname": "DisclosureOfInventoriesExplanatory", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureInventories" ], "xbrltype": "textBlockItemType" }, "ifrs-full_DisclosureOfInvestmentsAccountedForUsingEquityMethodExplanatory": { "auth_ref": [ "r0" ], "lang": { "en": { "role": { "documentation": "The disclosure of investments accounted for using the equity method. [Refer: Investments accounted for using equity method]" } }, "en-us": { "role": { "label": "Disclosure of investments accounted for using equity method [text block]", "terseLabel": "Schedule of amounts recognised in the balance sheet and income statement" } } }, "localname": "DisclosureOfInvestmentsAccountedForUsingEquityMethodExplanatory", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureInvestmentsInAssociatesTables" ], "xbrltype": "textBlockItemType" }, "ifrs-full_DisclosureOfNetDefinedBenefitLiabilityAssetExplanatory": { "auth_ref": [ "r99" ], "lang": { "en": { "role": { "documentation": "The disclosure of a net defined benefit liability (asset). [Refer: Net defined benefit liability (asset)]" } }, "en-us": { "role": { "label": "Disclosure of net defined benefit liability (asset) [text block]", "terseLabel": "Reconciliation of benefit obligations and pension assets" } } }, "localname": "DisclosureOfNetDefinedBenefitLiabilityAssetExplanatory", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsTable" ], "xbrltype": "textBlockItemType" }, "ifrs-full_DisclosureOfNetDefinedBenefitLiabilityAssetLineItems": { "auth_ref": [], "lang": { "en": { "role": { "documentation": "Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table." } }, "en-us": { "role": { "label": "Disclosure of net defined benefit liability (asset) [line items]" } } }, "localname": "DisclosureOfNetDefinedBenefitLiabilityAssetLineItems", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsReconciliationOfBenefitObligationsAndPensionAssetsDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_DisclosureOfNetDefinedBenefitLiabilityAssetTable": { "auth_ref": [ "r99" ], "lang": { "en": { "role": { "documentation": "Schedule disclosing information related to the net defined benefit liability (asset)." } }, "en-us": { "role": { "label": "Disclosure of net defined benefit liability (asset) [table]" } } }, "localname": "DisclosureOfNetDefinedBenefitLiabilityAssetTable", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsReconciliationOfBenefitObligationsAndPensionAssetsDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "POST BALANCE SHEET EVENTS" } } }, "localname": "DisclosureOfNonadjustingEventsAfterReportingPeriodAbstract", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "xbrltype": "stringItemType" }, "ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodLineItems": { "auth_ref": [], "lang": { "en": { "role": { "documentation": "Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table." } }, "en-us": { "role": { "label": "Disclosure of non-adjusting events after reporting period [line items]", "terseLabel": "Disclosure of non-adjusting events after reporting period" } } }, "localname": "DisclosureOfNonadjustingEventsAfterReportingPeriodLineItems", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosurePostBalanceSheetEventsDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodTable": { "auth_ref": [ "r60" ], "lang": { "en": { "role": { "documentation": "Schedule disclosing information related to non-adjusting events after the reporting period." } }, "en-us": { "role": { "label": "Disclosure of non-adjusting events after reporting period [table]" } } }, "localname": "DisclosureOfNonadjustingEventsAfterReportingPeriodTable", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosurePostBalanceSheetEventsDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_DisclosureOfNotesAndOtherExplanatoryInformationExplanatory": { "auth_ref": [ "r0" ], "lang": { "en": { "role": { "documentation": "The disclosure of notes and other explanatory information as part of a complete set of financial statements." } }, "en-us": { "role": { "label": "Disclosure of notes and other explanatory information [text block]", "terseLabel": "OTHER NOTES TO THE ACCOUNTS" } } }, "localname": "DisclosureOfNotesAndOtherExplanatoryInformationExplanatory", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureOtherNotesToAccounts" ], "xbrltype": "textBlockItemType" }, "ifrs-full_DisclosureOfOperatingSegmentsAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "BUSINESS SEGMENT INFORMATION" } } }, "localname": "DisclosureOfOperatingSegmentsAbstract", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "xbrltype": "stringItemType" }, "ifrs-full_DisclosureOfOperatingSegmentsLineItems": { "auth_ref": [], "lang": { "en": { "role": { "documentation": "Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table." } }, "en-us": { "role": { "label": "Disclosure of operating segments [line items]" } } }, "localname": "DisclosureOfOperatingSegmentsLineItems", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationAssetsAndLiabilitiesByBusinessSegmentAndGeographyDetails", "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationDetails", "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationTradingAndOperatingProfitByBusinessSegmentDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_DisclosureOfOperatingSegmentsTable": { "auth_ref": [ "r344" ], "lang": { "en": { "role": { "documentation": "Schedule disclosing information related to operating segments." } }, "en-us": { "role": { "label": "Disclosure of operating segments [table]" } } }, "localname": "DisclosureOfOperatingSegmentsTable", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationAssetsAndLiabilitiesByBusinessSegmentAndGeographyDetails", "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationDetails", "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationTradingAndOperatingProfitByBusinessSegmentDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_DisclosureOfOtherProvisionsContingentLiabilitiesAndContingentAssetsExplanatory": { "auth_ref": [ "r173" ], "lang": { "en": { "role": { "documentation": "The entire disclosure for other provisions, contingent liabilities and contingent assets." } }, "en-us": { "role": { "label": "Disclosure of other provisions, contingent liabilities and contingent assets [text block]", "terseLabel": "PROVISIONS AND CONTINGENCIES" } } }, "localname": "DisclosureOfOtherProvisionsContingentLiabilitiesAndContingentAssetsExplanatory", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureProvisionsAndContingencies" ], "xbrltype": "textBlockItemType" }, "ifrs-full_DisclosureOfOtherProvisionsExplanatory": { "auth_ref": [ "r171" ], "lang": { "en": { "role": { "documentation": "The disclosure of other provisions. [Refer: Other provisions]" } }, "en-us": { "role": { "label": "Disclosure of other provisions [text block]", "terseLabel": "Schedule of provisions" } } }, "localname": "DisclosureOfOtherProvisionsExplanatory", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureProvisionsAndContingenciesTables" ], "xbrltype": "textBlockItemType" }, "ifrs-full_DisclosureOfOtherProvisionsLineItems": { "auth_ref": [], "lang": { "en": { "role": { "documentation": "Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table." } }, "en-us": { "role": { "label": "Disclosure of other provisions [line items]" } } }, "localname": "DisclosureOfOtherProvisionsLineItems", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureProvisionsAndContingenciesChangesInProvisionsDetails", "http://www.smith-nephew.com/role/DisclosureProvisionsAndContingenciesCurrentAndNonCurrentProvisionsDetails", "http://www.smith-nephew.com/role/DisclosureProvisionsAndContingenciesLegalProceedingsDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_DisclosureOfOtherProvisionsTable": { "auth_ref": [ "r171" ], "lang": { "en": { "role": { "documentation": "Schedule disclosing information related to other provisions." } }, "en-us": { "role": { "label": "Disclosure of other provisions [table]" } } }, "localname": "DisclosureOfOtherProvisionsTable", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureProvisionsAndContingenciesChangesInProvisionsDetails", "http://www.smith-nephew.com/role/DisclosureProvisionsAndContingenciesCurrentAndNonCurrentProvisionsDetails", "http://www.smith-nephew.com/role/DisclosureProvisionsAndContingenciesLegalProceedingsDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_DisclosureOfProfitLossFromOperatingActivitiesExplanatory": { "auth_ref": [ "r0" ], "lang": { "en": { "role": { "documentation": "The disclosure of profit (loss) from operating activities. [Refer: Profit (loss) from operating activities]" } }, "en-us": { "role": { "label": "Disclosure of profit (loss) from operating activities [text block]", "terseLabel": "OPERATING PROFIT" } } }, "localname": "DisclosureOfProfitLossFromOperatingActivitiesExplanatory", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureOperatingProfit" ], "xbrltype": "textBlockItemType" }, "ifrs-full_DisclosureOfPropertyPlantAndEquipmentExplanatory": { "auth_ref": [ "r91" ], "lang": { "en": { "role": { "documentation": "The entire disclosure for property, plant and equipment." } }, "en-us": { "role": { "label": "Disclosure of property, plant and equipment [text block]", "terseLabel": "PROPERTY, PLANT AND EQUIPMENT" } } }, "localname": "DisclosureOfPropertyPlantAndEquipmentExplanatory", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosurePropertyPlantAndEquipment" ], "xbrltype": "textBlockItemType" }, "ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems": { "auth_ref": [], "lang": { "en": { "role": { "documentation": "Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table." } }, "en-us": { "role": { "label": "Disclosure of detailed information about property, plant and equipment [line items]" } } }, "localname": "DisclosureOfPropertyPlantAndEquipmentLineItems", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosurePropertyPlantAndEquipmentDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_DisclosureOfPropertyPlantAndEquipmentTable": { "auth_ref": [ "r88" ], "lang": { "en": { "role": { "documentation": "Schedule disclosing information related to details of property, plant and equipment." } }, "en-us": { "role": { "label": "Disclosure of detailed information about property, plant and equipment [table]" } } }, "localname": "DisclosureOfPropertyPlantAndEquipmentTable", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosurePropertyPlantAndEquipmentDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_DisclosureOfQuantitativeInformationAboutLeasesForLesseeAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Disclosure of quantitative information about leases for lessee [abstract]" } } }, "localname": "DisclosureOfQuantitativeInformationAboutLeasesForLesseeAbstract", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosurePropertyPlantAndEquipmentDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsExplanatory": { "auth_ref": [ "r272" ], "lang": { "en": { "role": { "documentation": "The disclosure of quantitative information about right-of-use assets. [Refer: Right-of-use assets]" } }, "en-us": { "role": { "label": "Disclosure of quantitative information about right-of-use assets [text block]", "terseLabel": "Schedule of Group's right-of-use assets" } } }, "localname": "DisclosureOfQuantitativeInformationAboutRightofuseAssetsExplanatory", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosurePropertyPlantAndEquipmentTables" ], "xbrltype": "textBlockItemType" }, "ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "GOODWILL" } } }, "localname": "DisclosureOfReconciliationOfChangesInGoodwillAbstract", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "xbrltype": "stringItemType" }, "ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillExplanatory": { "auth_ref": [ "r294" ], "lang": { "en": { "role": { "documentation": "The disclosure of the reconciliation of changes in goodwill. [Refer: Goodwill]" } }, "en-us": { "role": { "label": "Disclosure of reconciliation of changes in goodwill [text block]", "terseLabel": "Schedule of goodwill" } } }, "localname": "DisclosureOfReconciliationOfChangesInGoodwillExplanatory", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureGoodwillTable" ], "xbrltype": "textBlockItemType" }, "ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillLineItems": { "auth_ref": [], "lang": { "en": { "role": { "documentation": "Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table." } }, "en-us": { "role": { "label": "Disclosure of reconciliation of changes in goodwill [line items]" } } }, "localname": "DisclosureOfReconciliationOfChangesInGoodwillLineItems", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureGoodwillDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillTable": { "auth_ref": [ "r294" ], "lang": { "en": { "role": { "documentation": "Schedule disclosing information related to the reconciliation of changes in goodwill." } }, "en-us": { "role": { "label": "Disclosure of reconciliation of changes in goodwill [table]" } } }, "localname": "DisclosureOfReconciliationOfChangesInGoodwillTable", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureGoodwillDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_DisclosureOfRelatedPartyExplanatory": { "auth_ref": [ "r141" ], "lang": { "en": { "role": { "documentation": "The entire disclosure for related parties." } }, "en-us": { "role": { "label": "Disclosure of related party [text block]", "terseLabel": "Schedule of remuneration of executive officers (including Non-Executive Directors)" } } }, "localname": "DisclosureOfRelatedPartyExplanatory", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureOtherNotesToAccountsTables" ], "xbrltype": "textBlockItemType" }, "ifrs-full_DisclosureOfRiskManagementStrategyRelatedToHedgeAccountingLineItems": { "auth_ref": [], "lang": { "en": { "role": { "documentation": "Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table." } }, "en-us": { "role": { "label": "Disclosure of risk management strategy related to hedge accounting [line items]", "terseLabel": "Risk management" } } }, "localname": "DisclosureOfRiskManagementStrategyRelatedToHedgeAccountingLineItems", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementForeignExchangeExposuresDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementInterestRateExposuresDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_DisclosureOfRiskManagementStrategyRelatedToHedgeAccountingTable": { "auth_ref": [ "r299" ], "lang": { "en": { "role": { "documentation": "Schedule disclosing information related to the risk management strategy in relation to hedge accounting." } }, "en-us": { "role": { "label": "Disclosure of risk management strategy related to hedge accounting [table]" } } }, "localname": "DisclosureOfRiskManagementStrategyRelatedToHedgeAccountingTable", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementForeignExchangeExposuresDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementInterestRateExposuresDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_DisclosureOfSensitivityAnalysisForActuarialAssumptionsExplanatory": { "auth_ref": [ "r116" ], "lang": { "en": { "role": { "documentation": "The disclosure of a sensitivity analysis for significant actuarial assumptions used to determine the present value of a defined benefit obligation. [Refer: Actuarial assumptions [member]; Defined benefit obligation, at present value]" } }, "en-us": { "role": { "label": "Disclosure of sensitivity analysis for actuarial assumptions [text block]", "terseLabel": "Sensitivity analysis" } } }, "localname": "DisclosureOfSensitivityAnalysisForActuarialAssumptionsExplanatory", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsTable" ], "xbrltype": "textBlockItemType" }, "ifrs-full_DisclosureOfSensitivityAnalysisForActuarialAssumptionsLineItems": { "auth_ref": [], "lang": { "en": { "role": { "documentation": "Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table." } }, "en-us": { "role": { "label": "Disclosure of sensitivity analysis for actuarial assumptions [line items]" } } }, "localname": "DisclosureOfSensitivityAnalysisForActuarialAssumptionsLineItems", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsSensitivityAnalysisDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_DisclosureOfSensitivityAnalysisForActuarialAssumptionsTable": { "auth_ref": [ "r116" ], "lang": { "en": { "role": { "documentation": "Schedule disclosing information related to the sensitivity analysis for actuarial assumptions." } }, "en-us": { "role": { "label": "Disclosure of sensitivity analysis for actuarial assumptions [table]" } } }, "localname": "DisclosureOfSensitivityAnalysisForActuarialAssumptionsTable", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsSensitivityAnalysisDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_DisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory": { "auth_ref": [ "r42" ], "lang": { "en": { "role": { "documentation": "The entire disclosure for share capital, reserves and other equity interest." } }, "en-us": { "role": { "label": "Disclosure of share capital, reserves and other equity interest [text block]", "terseLabel": "EQUITY" } } }, "localname": "DisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEquity" ], "xbrltype": "textBlockItemType" }, "ifrs-full_DisclosureOfSignificantInvestmentsInAssociatesAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "INVESTMENTS IN ASSOCIATES" } } }, "localname": "DisclosureOfSignificantInvestmentsInAssociatesAbstract", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "xbrltype": "stringItemType" }, "ifrs-full_DisclosureOfSignificantInvestmentsInAssociatesExplanatory": { "auth_ref": [ "r145", "r147", "r240" ], "lang": { "en": { "role": { "documentation": "The disclosure of associates. [Refer: Associates [member]]" } }, "en-us": { "role": { "label": "Disclosure of associates [text block]", "terseLabel": "Summary of financial information for Bioventus, adjusted for differences with Group accounting policies" } } }, "localname": "DisclosureOfSignificantInvestmentsInAssociatesExplanatory", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureInvestmentsInAssociatesTables" ], "xbrltype": "textBlockItemType" }, "ifrs-full_DisclosureOfSignificantInvestmentsInAssociatesLineItems": { "auth_ref": [], "lang": { "en": { "role": { "documentation": "Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table." } }, "en-us": { "role": { "label": "Disclosure of associates [line items]" } } }, "localname": "DisclosureOfSignificantInvestmentsInAssociatesLineItems", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureInvestmentsInAssociatesAmountsRecognisedInBalanceSheetAndIncomeStatementDetails", "http://www.smith-nephew.com/role/DisclosureInvestmentsInAssociatesSummarisedBalanceSheetDetails", "http://www.smith-nephew.com/role/DisclosureInvestmentsInAssociatesSummarisedStatementOfComprehensiveIncomeDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_DisclosureOfSignificantInvestmentsInAssociatesTable": { "auth_ref": [ "r145", "r147", "r240" ], "lang": { "en": { "role": { "documentation": "Schedule disclosing information related to associates." } }, "en-us": { "role": { "label": "Disclosure of associates [table]" } } }, "localname": "DisclosureOfSignificantInvestmentsInAssociatesTable", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureInvestmentsInAssociatesAmountsRecognisedInBalanceSheetAndIncomeStatementDetails", "http://www.smith-nephew.com/role/DisclosureInvestmentsInAssociatesSummarisedBalanceSheetDetails", "http://www.smith-nephew.com/role/DisclosureInvestmentsInAssociatesSummarisedStatementOfComprehensiveIncomeDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems": { "auth_ref": [], "lang": { "en": { "role": { "documentation": "Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table." } }, "en-us": { "role": { "label": "Disclosure of temporary difference, unused tax losses and unused tax credits [line items]" } } }, "localname": "DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationDeferredTaxationDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable": { "auth_ref": [ "r75" ], "lang": { "en": { "role": { "documentation": "Schedule disclosing information related to temporary differences, unused tax losses and unused tax credits." } }, "en-us": { "role": { "label": "Disclosure of temporary difference, unused tax losses and unused tax credits [table]" } } }, "localname": "DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationDeferredTaxationDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "OTHER NOTES TO THE ACCOUNTS" } } }, "localname": "DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementAbstract", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "xbrltype": "stringItemType" }, "ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems": { "auth_ref": [], "lang": { "en": { "role": { "documentation": "Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table." } }, "en-us": { "role": { "label": "Disclosure of terms and conditions of share-based payment arrangement [line items]", "terseLabel": "Share-Based Compensations" } } }, "localname": "DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureOtherNotesToAccountsStockOptionsOutstandingDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable": { "auth_ref": [ "r279" ], "lang": { "en": { "role": { "documentation": "Schedule disclosing information related to terms and conditions of share-based payment arrangements." } }, "en-us": { "role": { "label": "Disclosure of terms and conditions of share-based payment arrangement [table]" } } }, "localname": "DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureOtherNotesToAccountsStockOptionsOutstandingDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_DisclosureOfTradeAndOtherPayablesExplanatory": { "auth_ref": [ "r0" ], "lang": { "en": { "role": { "documentation": "The disclosure of trade and other payables. [Refer: Trade and other payables]" } }, "en-us": { "role": { "label": "Disclosure of trade and other payables [text block]", "terseLabel": "TRADE AND OTHER PAYABLES" } } }, "localname": "DisclosureOfTradeAndOtherPayablesExplanatory", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTradeAndOtherPayables" ], "xbrltype": "textBlockItemType" }, "ifrs-full_DisclosureOfTradeAndOtherReceivablesExplanatory": { "auth_ref": [ "r0" ], "lang": { "en": { "role": { "documentation": "The disclosure of trade and other receivables. [Refer: Trade and other receivables]" } }, "en-us": { "role": { "label": "Disclosure of trade and other receivables [text block]", "terseLabel": "TRADE AND OTHER RECEIVABLES" } } }, "localname": "DisclosureOfTradeAndOtherReceivablesExplanatory", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTradeAndOtherReceivables" ], "xbrltype": "textBlockItemType" }, "ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Related Party Transactions" } } }, "localname": "DisclosureOfTransactionsBetweenRelatedPartiesAbstract", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "xbrltype": "stringItemType" }, "ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems": { "auth_ref": [], "lang": { "en": { "role": { "documentation": "Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table." } }, "en-us": { "role": { "label": "Disclosure of transactions between related parties [line items]" } } }, "localname": "DisclosureOfTransactionsBetweenRelatedPartiesLineItems", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureOtherNotesToAccountsRelatedPartyTransactionsDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesTable": { "auth_ref": [ "r140" ], "lang": { "en": { "role": { "documentation": "Schedule disclosing information related to transactions between related parties." } }, "en-us": { "role": { "label": "Disclosure of transactions between related parties [table]" } } }, "localname": "DisclosureOfTransactionsBetweenRelatedPartiesTable", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureOtherNotesToAccountsRelatedPartyTransactionsDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_DisclosureOfTreasurySharesExplanatory": { "auth_ref": [ "r0" ], "lang": { "en": { "role": { "documentation": "The disclosure of treasury shares. [Refer: Treasury shares]" } }, "en-us": { "role": { "label": "Disclosure of treasury shares [text block]", "terseLabel": "Schedule of treasury shares" } } }, "localname": "DisclosureOfTreasurySharesExplanatory", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEquityTable" ], "xbrltype": "textBlockItemType" }, "ifrs-full_DisposalsIntangibleAssetsOtherThanGoodwill": { "auth_ref": [ "r178" ], "crdr": "credit", "lang": { "en": { "role": { "documentation": "The decrease in intangible assets other than goodwill resulting from disposals. [Refer: Intangible assets other than goodwill]" } }, "en-us": { "role": { "label": "Disposals, intangible assets other than goodwill", "negatedLabel": "Disposals" } } }, "localname": "DisposalsIntangibleAssetsOtherThanGoodwill", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureIntangibleAssetsDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_DisposalsPropertyPlantAndEquipment": { "auth_ref": [ "r82" ], "crdr": "credit", "lang": { "en": { "role": { "documentation": "The decrease in property, plant and equipment resulting from disposals. [Refer: Property, plant and equipment]" } }, "en-us": { "role": { "label": "Disposals, property, plant and equipment", "negatedTerseLabel": "Disposals" } } }, "localname": "DisposalsPropertyPlantAndEquipment", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosurePropertyPlantAndEquipmentDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_DividendsPaid": { "auth_ref": [ "r10" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureEquityDividendsDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount of dividends recognised as distributions to owners." } }, "en-us": { "role": { "label": "Dividends recognised as distributions to owners", "negatedLabel": "Equity dividends declared and paid", "totalLabel": "Total dividends paid for ordinary share" } } }, "localname": "DividendsPaid", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEquityDividendsDetails", "http://www.smith-nephew.com/role/StatementGroupStatementOfChangesInEquity" ], "xbrltype": "monetaryItemType" }, "ifrs-full_DividendsPaidOrdinarySharesPerShare": { "auth_ref": [ "r154" ], "lang": { "en": { "role": { "documentation": "The amount of dividends paid per ordinary share." } }, "en-us": { "role": { "label": "Dividends paid, ordinary shares per share", "terseLabel": "Interim dividend per ordinary share" } } }, "localname": "DividendsPaidOrdinarySharesPerShare", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEquityDividendsDetails" ], "xbrltype": "perShareItemType" }, "ifrs-full_DividendsPaidToEquityHoldersOfParentClassifiedAsFinancingActivities": { "auth_ref": [ "r204" ], "calculation": { "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement": { "order": 1.0, "parentTag": "ifrs-full_CashFlowsFromUsedInFinancingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en": { "role": { "documentation": "The cash outflow for dividends paid to equity holders of the parent, classified as financing activities." } }, "en-us": { "role": { "label": "Dividends paid to equity holders of parent, classified as financing activities", "negatedLabel": "Equity dividends paid", "verboseLabel": "Dividends" } } }, "localname": "DividendsPaidToEquityHoldersOfParentClassifiedAsFinancingActivities", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashFlowStatementCashOutflowsInflowsArisingFromFinancingActivitiesDetails", "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement" ], "xbrltype": "monetaryItemType" }, "ifrs-full_DividendsProposedOrDeclaredBeforeFinancialStatementsAuthorisedForIssueButNotRecognisedAsDistributionToOwners": { "auth_ref": [ "r15", "r59" ], "lang": { "en": { "role": { "documentation": "The amount of dividends proposed or declared after the reporting period but before financial statements are authorised for issue. Such dividends are not recognised as a liability at the end of the reporting period because no obligation exists at that time." } }, "en-us": { "role": { "label": "Dividends proposed or declared before financial statements authorised for issue but not recognised as distribution to owners", "terseLabel": "Total proposed dividends" } } }, "localname": "DividendsProposedOrDeclaredBeforeFinancialStatementsAuthorisedForIssueButNotRecognisedAsDistributionToOwners", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEquityDividendsDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_DividendsProposedOrDeclaredBeforeFinancialStatementsAuthorisedForIssueButNotRecognisedAsDistributionToOwnersPerShare": { "auth_ref": [ "r15" ], "lang": { "en": { "role": { "documentation": "The amount, per share, of dividends proposed or declared before financial statements were authorised for issue but not recognised as distribution to owners." } }, "en-us": { "role": { "label": "Dividends proposed or declared before financial statements authorised for issue but not recognised as distribution to owners per share", "verboseLabel": "Proposed final dividend per ordinary share" } } }, "localname": "DividendsProposedOrDeclaredBeforeFinancialStatementsAuthorisedForIssueButNotRecognisedAsDistributionToOwnersPerShare", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEquityDividendsDetails" ], "xbrltype": "perShareItemType" }, "ifrs-full_DividendsReceived": { "auth_ref": [ "r230" ], "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount of dividends received." } }, "en-us": { "role": { "label": "Dividends received", "verboseLabel": "Cash distribution received" } } }, "localname": "DividendsReceived", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureInvestmentsInAssociatesSummarisedBalanceSheetDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_DividendsRecognisedAsDistributionsToOwnersOfParentRelatingToCurrentYear": { "auth_ref": [ "r8" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureEquityDividendsDetails": { "order": 1.0, "parentTag": "ifrs-full_DividendsPaid", "weight": 1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount of dividends relating to the current year, recognised as distributions to owners of the parent. [Refer: Parent [member]]" } }, "en-us": { "role": { "label": "Dividends recognised as distributions to owners of parent, relating to current year", "verboseLabel": "Ordinary dividends paid relating to current years" } } }, "localname": "DividendsRecognisedAsDistributionsToOwnersOfParentRelatingToCurrentYear", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEquityDividendsDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_DividendsRecognisedAsDistributionsToOwnersOfParentRelatingToPriorYears": { "auth_ref": [ "r8" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureEquityDividendsDetails": { "order": 2.0, "parentTag": "ifrs-full_DividendsPaid", "weight": 1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount of dividends relating to prior years, recognised as distributions to owners of the parent. [Refer: Parent [member]]" } }, "en-us": { "role": { "label": "Dividends recognised as distributions to owners of parent, relating to prior years", "verboseLabel": "Ordinary dividends paid relating to prior years" } } }, "localname": "DividendsRecognisedAsDistributionsToOwnersOfParentRelatingToPriorYears", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEquityDividendsDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_DividendsRecognisedAsDistributionsToOwnersPerShare": { "auth_ref": [ "r10" ], "lang": { "en": { "role": { "documentation": "The amount, per share, of dividends recognised as distributions to owners." } }, "en-us": { "role": { "label": "Dividends recognised as distributions to owners per share", "terseLabel": "Ordinary final dividends per share" } } }, "localname": "DividendsRecognisedAsDistributionsToOwnersPerShare", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEquityDividendsDetails" ], "xbrltype": "perShareItemType" }, "ifrs-full_EarningsPerShareAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Earnings per share [abstract]", "terseLabel": "Earnings per ordinary share" } } }, "localname": "EarningsPerShareAbstract", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/StatementGroupIncomeStatement" ], "xbrltype": "stringItemType" }, "ifrs-full_EarningsPerShareExplanatory": { "auth_ref": [ "r150" ], "lang": { "en": { "role": { "documentation": "The disclosure of earnings per share." } }, "en-us": { "role": { "label": "Earnings per share [text block]", "terseLabel": "Schedule of earnings per share" } } }, "localname": "EarningsPerShareExplanatory", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEarningsPerOrdinaryShareTables" ], "xbrltype": "textBlockItemType" }, "ifrs-full_EarningsPerShareLineItems": { "auth_ref": [], "lang": { "en": { "role": { "documentation": "Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table." } }, "en-us": { "role": { "label": "Earnings per share [line items]" } } }, "localname": "EarningsPerShareLineItems", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEarningsPerOrdinaryShareCalculationOfBasicDilutedAndAdjustedEarningsPerShareDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_EarningsPerShareTable": { "auth_ref": [ "r150" ], "lang": { "en": { "role": { "documentation": "Schedule disclosing information related to earnings per share." } }, "en-us": { "role": { "label": "Earnings per share [table]" } } }, "localname": "EarningsPerShareTable", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEarningsPerOrdinaryShareCalculationOfBasicDilutedAndAdjustedEarningsPerShareDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_EffectOfExchangeRateChangesOnCashAndCashEquivalents": { "auth_ref": [ "r209", "r210" ], "crdr": "debit", "lang": { "en": { "role": { "documentation": "The effect of exchange rate changes on cash and cash equivalents held or due in a foreign currency. [Refer: Cash and cash equivalents]" } }, "en-us": { "role": { "label": "Effect of exchange rate changes on cash and cash equivalents", "terseLabel": "Exchange adjustments" } } }, "localname": "EffectOfExchangeRateChangesOnCashAndCashEquivalents", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement" ], "xbrltype": "monetaryItemType" }, "ifrs-full_EmployeeBenefitsExpense": { "auth_ref": [ "r1", "r3", "r57" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureOperatingProfitInformationAboutNatureAndCostOfServicesDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The expense of all forms of consideration given by an entity in exchange for a service rendered by employees or for the termination of employment." } }, "en-us": { "role": { "label": "Employee benefits expense", "totalLabel": "Staff costs" } } }, "localname": "EmployeeBenefitsExpense", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureOperatingProfitInformationAboutNatureAndCostOfServicesDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_EntitysTotalForAssociatesMember": { "auth_ref": [ "r145", "r147", "r240", "r374", "r379" ], "lang": { "en": { "role": { "documentation": "This member stands for the standard value for the 'Associates' axis if no other member is used." } }, "en-us": { "role": { "label": "Entity's total for associates [member]" } } }, "localname": "EntitysTotalForAssociatesMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEarningsPerOrdinaryShareCalculationOfBasicDilutedAndAdjustedEarningsPerShareDetails", "http://www.smith-nephew.com/role/DisclosureInvestmentsInAssociatesAmountsRecognisedInBalanceSheetAndIncomeStatementDetails", "http://www.smith-nephew.com/role/DisclosureInvestmentsInAssociatesSummarisedBalanceSheetDetails", "http://www.smith-nephew.com/role/DisclosureInvestmentsInAssociatesSummarisedStatementOfComprehensiveIncomeDetails", "http://www.smith-nephew.com/role/DisclosurePostBalanceSheetEventsDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_EntitysTotalForBusinessCombinationsMember": { "auth_ref": [ "r290", "r295" ], "lang": { "en": { "role": { "documentation": "This member stands for the standard value for the 'Business combinations' axis if no other member is used." } }, "en-us": { "role": { "label": "Entity's total for business combinations [member]" } } }, "localname": "EntitysTotalForBusinessCombinationsMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails", "http://www.smith-nephew.com/role/DisclosureAcquisitionsTables", "http://www.smith-nephew.com/role/DisclosureIntangibleAssetsDetails", "http://www.smith-nephew.com/role/DisclosurePostBalanceSheetEventsDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_EntitysTotalForIndividualAssetsOrCashgeneratingUnitsMember": { "auth_ref": [ "r159" ], "lang": { "en": { "role": { "documentation": "This member stands for the standard value for the 'Individual assets or cash-generating units' axis if no other member is used." } }, "en-us": { "role": { "label": "Entity's total for individual assets or cash-generating units [member]" } } }, "localname": "EntitysTotalForIndividualAssetsOrCashgeneratingUnitsMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureGoodwillDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_EntitysTotalForRelatedPartiesMember": { "auth_ref": [ "r140" ], "lang": { "en": { "role": { "documentation": "This member stands for the standard value for the 'Categories of related parties' axis if no other member is used." } }, "en-us": { "role": { "label": "Entity's total for related parties [member]" } } }, "localname": "EntitysTotalForRelatedPartiesMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureOtherNotesToAccountsRelatedPartyTransactionsDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_Equity": { "auth_ref": [ "r27", "r38", "r219", "r221", "r241", "r242", "r247" ], "crdr": "credit", "lang": { "en": { "role": { "documentation": "The amount of residual interest in the assets of the entity after deducting all its liabilities." } }, "en-us": { "role": { "label": "Equity", "periodEndLabel": "Balance at end of period", "periodStartLabel": "Balance at beginning of period", "terseLabel": "Balance", "verboseLabel": "Net equity attributable to owners" } } }, "localname": "Equity", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEquityEquityComponentsDetails", "http://www.smith-nephew.com/role/DisclosureEquityShareCapitalDetails", "http://www.smith-nephew.com/role/DisclosureInvestmentsInAssociatesSummarisedBalanceSheetDetails", "http://www.smith-nephew.com/role/StatementGroupStatementOfChangesInEquity" ], "xbrltype": "monetaryItemType" }, "ifrs-full_EquityAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "EQUITY.", "terseLabel": "Equity attributable to owners of the Company" } } }, "localname": "EquityAbstract", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/StatementGroupBalanceSheet" ], "xbrltype": "stringItemType" }, "ifrs-full_EquityAndLiabilities": { "auth_ref": [ "r27" ], "calculation": { "http://www.smith-nephew.com/role/StatementGroupBalanceSheet": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en": { "role": { "documentation": "The amount of the entity's equity and liabilities. [Refer: Equity; Liabilities]" } }, "en-us": { "role": { "label": "Equity and liabilities", "totalLabel": "Total equity and liabilities" } } }, "localname": "EquityAndLiabilities", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/StatementGroupBalanceSheet" ], "xbrltype": "monetaryItemType" }, "ifrs-full_EquityAndLiabilitiesAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Equity and liabilities [abstract]", "terseLabel": "Equity and liabilities" } } }, "localname": "EquityAndLiabilitiesAbstract", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/StatementGroupBalanceSheet" ], "xbrltype": "stringItemType" }, "ifrs-full_EquityAttributableToOwnersOfParent": { "auth_ref": [ "r26" ], "calculation": { "http://www.smith-nephew.com/role/StatementGroupBalanceSheet": { "order": 1.0, "parentTag": "ifrs-full_EquityAndLiabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en": { "role": { "documentation": "The amount of equity attributable to the owners of the parent. This specifically excludes non-controlling interest." } }, "en-us": { "role": { "label": "Equity attributable to owners of parent", "totalLabel": "Total equity" } } }, "localname": "EquityAttributableToOwnersOfParent", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/StatementGroupBalanceSheet" ], "xbrltype": "monetaryItemType" }, "ifrs-full_EquityInstrumentsAmountContributedToFairValueOfPlanAssets": { "auth_ref": [ "r110" ], "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount instruments representing equity (rather than debt) contribute to the fair value of defined benefit plan assets. [Refer: Plan assets, at fair value; Defined benefit plans [member]]" } }, "en-us": { "role": { "label": "Equity instruments, amount contributed to fair value of plan assets", "terseLabel": "Equity securities" } } }, "localname": "EquityInstrumentsAmountContributedToFairValueOfPlanAssets", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsPlanAssetsDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_EquityMember": { "auth_ref": [ "r9" ], "lang": { "en": { "role": { "documentation": "This member stands for the residual interest in the assets of the entity after deducting all its liabilities. It also represents the standard value for the 'Components of equity' axis if no other member is used." } }, "en-us": { "role": { "label": "Equity [member]" } } }, "localname": "EquityMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEquityEquityComponentsDetails", "http://www.smith-nephew.com/role/DisclosureEquityShareCapitalDetails", "http://www.smith-nephew.com/role/DisclosureEquitySharesBuyBackDetails", "http://www.smith-nephew.com/role/DisclosureEquityTreasurySharesDetails", "http://www.smith-nephew.com/role/StatementGroupStatementOfChangesInEquity" ], "xbrltype": "domainItemType" }, "ifrs-full_EstimateOfContributionsExpectedToBePaidToPlan": { "auth_ref": [ "r117", "r119" ], "crdr": "credit", "lang": { "en": { "role": { "documentation": "The estimate of the expected contributions to be made to a defined benefit plan for the next annual reporting period. [Refer: Defined benefit plans [member]]" } }, "en-us": { "role": { "label": "Estimate of contributions expected to be paid to plan for next annual reporting period", "terseLabel": "Planned supplementary contributions for next year" } } }, "localname": "EstimateOfContributionsExpectedToBePaidToPlan", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsSensitivityAnalysisDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_ExercisePriceOfOutstandingShareOptions2019": { "auth_ref": [ "r278" ], "lang": { "en": { "role": { "documentation": "The exercise price of outstanding share options." } }, "en-us": { "role": { "label": "Exercise price of outstanding share options" } } }, "localname": "ExercisePriceOfOutstandingShareOptions2019", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureOtherNotesToAccountsStockOptionsOutstandingDetails" ], "xbrltype": "perShareItemType" }, "ifrs-full_ExpenseDueToUnwindingOfDiscountOnProvisions": { "auth_ref": [ "r12" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureInterestAndOtherFinanceCostsOtherFinanceCostsDetails": { "order": 2.0, "parentTag": "ifrs-full_OtherFinanceCost", "weight": 1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount of expense recognised due to the unwinding of the discount on provisions other than provisions from employee benefits, resulting from the effect of the passage of time. [Refer: Other provisions]" } }, "en-us": { "role": { "label": "Expense due to unwinding of discount on provisions", "negatedLabel": "Unwinding of discount", "terseLabel": "Unwinding of discount" } } }, "localname": "ExpenseDueToUnwindingOfDiscountOnProvisions", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEarningsPerOrdinaryShareCalculationOfBasicDilutedAndAdjustedEarningsPerShareDetails", "http://www.smith-nephew.com/role/DisclosureInterestAndOtherFinanceCostsOtherFinanceCostsDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_ExpenseFromSharebasedPaymentTransactionsWithEmployees": { "auth_ref": [ "r12" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureOperatingProfitInformationAboutNatureAndCostOfServicesDetails": { "order": 4.0, "parentTag": "ifrs-full_EmployeeBenefitsExpense", "weight": 1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount of expense from share-based payment transactions with employees. [Refer: Expense from share-based payment transactions]" } }, "en-us": { "role": { "label": "Expense from share-based payment transactions with employees", "terseLabel": "Share-based payments", "verboseLabel": "Expense for share-based payments" } } }, "localname": "ExpenseFromSharebasedPaymentTransactionsWithEmployees", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureOperatingProfitInformationAboutNatureAndCostOfServicesDetails", "http://www.smith-nephew.com/role/DisclosureOtherNotesToAccountsStockOptionsOutstandingDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_ExpenseOfRestructuringActivities": { "auth_ref": [ "r55" ], "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount of expense relating to restructuring. Restructuring is a programme that is planned and controlled by management and materially changes either the scope of a business undertaken by an entity or the manner in which that business is conducted. Such programmes include: (a) the sale or termination of a line of business; (b) closure of business locations in a country or region or the relocation of activities from one country or region to another; (c) changes in management structure; and (d) fundamental reorganisations that have a material effect on the nature and focus of the entity's operations." } }, "en-us": { "role": { "label": "Expense of restructuring activities", "terseLabel": "Restructuring and rationalisation expenses" } } }, "localname": "ExpenseOfRestructuringActivities", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationTradingAndOperatingProfitByBusinessSegmentDetails", "http://www.smith-nephew.com/role/DisclosureEarningsPerOrdinaryShareCalculationOfBasicDilutedAndAdjustedEarningsPerShareDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_ExplanationOfMeasurementBasesUsedInPreparingFinancialStatements": { "auth_ref": [ "r13" ], "lang": { "en": { "role": { "documentation": "The explanation of the measurement basis (or bases) used in preparing the financial statements." } }, "en-us": { "role": { "label": "Explanation of measurement bases used in preparing financial statements [text block]", "terseLabel": "BASIS OF PRESENTATION" } } }, "localname": "ExplanationOfMeasurementBasesUsedInPreparingFinancialStatements", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "ifrs-full_FinanceIncome": { "auth_ref": [ "r49" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureInterestAndOtherFinanceCostsInterestIncomeExpenseDetails": { "order": 2.0, "parentTag": "ifrs-full_InterestRevenueExpense", "weight": 1.0 }, "http://www.smith-nephew.com/role/StatementGroupIncomeStatement": { "order": 2.0, "parentTag": "ifrs-full_ProfitLossBeforeTax", "weight": 1.0 } }, "crdr": "credit", "lang": { "en": { "role": { "documentation": "The amount of income associated with interest and other financing activities of the entity." } }, "en-us": { "role": { "label": "Finance income", "terseLabel": "Interest income" } } }, "localname": "FinanceIncome", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureInterestAndOtherFinanceCostsInterestIncomeExpenseDetails", "http://www.smith-nephew.com/role/StatementGroupIncomeStatement" ], "xbrltype": "monetaryItemType" }, "ifrs-full_FinancialAssets": { "auth_ref": [ "r308", "r313", "r314", "r317", "r318" ], "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount of assets that are: (a) cash; (b) an equity instrument of another entity; (c) a contractual right: (i) to receive cash or another financial asset from another entity; or (ii) to exchange financial assets or financial liabilities with another entity under conditions that are potentially favourable to the entity; or (d) a contract that will, or may be, settled in the entity\u2019s own equity instruments and is: (i) a non-derivative for which the entity is, or may be, obliged to receive a variable number of the entity\u2019s own equity instruments; or (ii) a derivative that will, or may be, settled other than by the exchange of a fixed amount of cash or another financial asset for a fixed number of the entity\u2019s own equity instruments. For this purpose the entity\u2019s own equity instruments do not include puttable financial instruments classified as equity instruments in accordance with paragraphs 16A-16B of IAS 32, instruments that impose on the entity an obligation to deliver to another party a pro rata share of the net assets of the entity only on liquidation and are classified as equity instruments in accordance with paragraphs 16C-16D of IAS 32, or instruments that are contracts for the future receipt or delivery of the entity\u2019s own equity instruments. [Refer: Financial instruments, class [member]; Financial liabilities]" } }, "en-us": { "role": { "label": "Financial assets", "terseLabel": "Financial assets" } } }, "localname": "FinancialAssets", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementInterestBearingAssetsDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_FinancialAssetsAtAmortisedCostCategoryMember": { "auth_ref": [ "r326" ], "lang": { "en": { "role": { "documentation": "This member stands for the financial assets at amortised cost category. [Refer: Financial assets at amortised cost]" } }, "en-us": { "role": { "label": "Amortised cost" } } }, "localname": "FinancialAssetsAtAmortisedCostCategoryMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementFairValueDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_FinancialAssetsAtFairValueThroughOtherComprehensiveIncomeCategoryMember": { "auth_ref": [ "r327" ], "lang": { "en": { "role": { "documentation": "This member stands for the financial assets at fair value through other comprehensive income category. [Refer: Financial assets at fair value through other comprehensive income]" } }, "en-us": { "role": { "label": "Fair value through OCI" } } }, "localname": "FinancialAssetsAtFairValueThroughOtherComprehensiveIncomeCategoryMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementFairValueDetails", "http://www.smith-nephew.com/role/DisclosureInvestmentsDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember": { "auth_ref": [ "r325" ], "lang": { "en": { "role": { "documentation": "This member stands for the financial assets at fair value through profit or loss category. [Refer: Financial assets at fair value through profit or loss]" } }, "en-us": { "role": { "label": "Financial assets at fair value through profit or loss" } } }, "localname": "FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementFairValueDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_FinancialAssetsCategoryMember": { "auth_ref": [ "r328" ], "lang": { "en": { "role": { "documentation": "This member stands for aggregated categories of financial assets. It also represents the standard value for the 'Categories of financial assets' axis if no other member is used. [Refer: Financial assets]" } }, "en-us": { "role": { "label": "Financial assets, category [member]" } } }, "localname": "FinancialAssetsCategoryMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementFairValueDetails", "http://www.smith-nephew.com/role/DisclosureInvestmentsDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_FinancialAssetsMember": { "auth_ref": [ "r322", "r323", "r355", "r368", "r369", "r370" ], "lang": { "en": { "role": { "documentation": "This member stands for aggregated classes of financial assets. It also represents the standard value for the 'Classes of financial assets' axis if no other member is used. [Refer: Financial assets]" } }, "en-us": { "role": { "label": "Financial assets, class [member]" } } }, "localname": "FinancialAssetsMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsNetDebtDetails", "http://www.smith-nephew.com/role/DisclosureCashFlowStatementAnalysisOfNetDebtDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementCreditRiskExposuresDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementFairValueDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementInterestBearingAssetsDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_FinancialAssetsRecognisedAsOfAcquisitionDate": { "auth_ref": [ "r285", "r296" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails": { "order": 3.0, "parentTag": "ifrs-full_IdentifiableAssetsAcquiredLiabilitiesAssumed", "weight": 1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount recognised as of the acquisition date for financial assets acquired in a business combination. [Refer: Financial assets; Business combinations [member]]" } }, "en-us": { "role": { "label": "Financial assets recognised as of acquisition date", "verboseLabel": "Investments" } } }, "localname": "FinancialAssetsRecognisedAsOfAcquisitionDate", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_FinancialLiabilities": { "auth_ref": [ "r308" ], "crdr": "credit", "lang": { "en": { "role": { "documentation": "The amount of liabilities that are: (a) a contractual obligation: (i) to deliver cash or another financial asset to another entity; or (ii) to exchange financial assets or financial liabilities with another entity under conditions that are potentially unfavourable to the entity; or (b) a contract that will, or may be, settled in the entity\u2019s own equity instruments and is: (i) a non-derivative for which the entity is, or may be, obliged to deliver a variable number of the entity\u2019s own equity instruments; or (ii) a derivative that will, or may be, settled other than by the exchange of a fixed amount of cash or another financial asset for a fixed number of the entity\u2019s own equity instruments. For this purpose, rights, options or warrants to acquire a fixed number of the entity\u2019s own equity instruments for a fixed amount of any currency are equity instruments if the entity offers the rights, options or warrants pro rata to all of its existing owners of the same class of its own non-derivative equity instruments. Also, for those purposes the entity\u2019s own equity instruments do not include puttable financial instruments that are classified as equity instruments in accordance with paragraphs 16A-16B of IAS 32, instruments that impose on the entity an obligation to deliver to another party a pro rata share of the net assets of the entity only on liquidation and are classified as equity instruments in accordance with paragraphs 16C-16D of IAS 32, or instruments that are contracts for the future receipt or delivery of the entity\u2019s own equity instruments. As an exception, an instrument that meets the definition of a financial liability is classified as an equity instrument if it has all the features and meets the conditions in paragraphs 16A-16B or paragraphs 16C-16D of IAS 32. [Refer: Financial instruments, class [member]; Financial assets; Derivatives [member]]" } }, "en-us": { "role": { "label": "Financial liabilities", "negatedLabel": "Financial liabilities" } } }, "localname": "FinancialLiabilities", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementInterestBearingLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_FinancialLiabilitiesAtFairValue": { "auth_ref": [ "r308" ], "crdr": "credit", "lang": { "en": { "role": { "documentation": "The fair value of financial liabilities. [Refer: At fair value [member]; Financial liabilities]" } }, "en-us": { "role": { "label": "Financial liabilities, at fair value", "terseLabel": "Fair value of liability" } } }, "localname": "FinancialLiabilitiesAtFairValue", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementFairValueDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_FinancialLiabilitiesCategoryMember": { "auth_ref": [ "r328" ], "lang": { "en": { "role": { "documentation": "This member stands for aggregated categories of financial liabilities. It also represents the standard value for the 'Categories of financial liabilities' axis if no other member is used. [Refer: Financial assets]" } }, "en-us": { "role": { "label": "Financial liabilities, category [member]" } } }, "localname": "FinancialLiabilitiesCategoryMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementFairValueDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_FinancialLiabilitiesMember": { "auth_ref": [ "r322", "r323", "r355", "r369" ], "lang": { "en": { "role": { "documentation": "This member stands for aggregated classes financial liabilities. It also represents the standard value for the 'Classes of financial liabilities' axis if no other member is used. [Refer: Financial liabilities]" } }, "en-us": { "role": { "label": "Financial liabilities, class [member]" } } }, "localname": "FinancialLiabilitiesMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementFairValueDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementInterestBearingLiabilitiesDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_FixedInterestRateMember": { "auth_ref": [ "r320" ], "lang": { "en": { "role": { "documentation": "This member stands for a fixed interest rate. [Refer: Interest rate risk [member]]" } }, "en-us": { "role": { "label": "Fixed rate" } } }, "localname": "FixedInterestRateMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementInterestBearingAssetsDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementInterestBearingLiabilitiesDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_FloatingInterestRateMember": { "auth_ref": [ "r320" ], "lang": { "en": { "role": { "documentation": "This member stands for a non-fixed interest rate. [Refer: Interest rate risk [member]]" } }, "en-us": { "role": { "label": "Floating rate" } } }, "localname": "FloatingInterestRateMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementInterestBearingAssetsDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementInterestBearingLiabilitiesDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_ForeignExchangeRatesAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Foreign exchange rates [abstract]", "terseLabel": "Exchange rates" } } }, "localname": "ForeignExchangeRatesAbstract", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBasisOfPreparationDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_ForwardContractMember": { "auth_ref": [ "r12" ], "lang": { "en": { "role": { "documentation": "This member stands for a contract between two parties for the purchase or sale of an underlying asset at a specified future date for a settlement price determined in advance." } }, "en-us": { "role": { "label": "Forward foreign exchange contracts" } } }, "localname": "ForwardContractMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementFairValueDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementForeignExchangeExposuresDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementHedgeDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_FundingArrangementsOfDefinedBenefitPlansAxis": { "auth_ref": [ "r95" ], "lang": { "en": { "role": { "documentation": "The axis of a table defines the relationship between the members in the table and the line items or concepts that complete the table." } }, "en-us": { "role": { "label": "Funding arrangements of defined benefit plans [axis]" } } }, "localname": "FundingArrangementsOfDefinedBenefitPlansAxis", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_FundingArrangementsOfDefinedBenefitPlansMember": { "auth_ref": [ "r95" ], "lang": { "en": { "role": { "documentation": "This member stands for all defined benefit plans when disaggregated by funding arrangements of defined benefits plans. It also represents the standard value for the 'Funding arrangements of defined benefits plans' axis if no other member is used." } }, "en-us": { "role": { "label": "Funding arrangements of defined benefit plans [member]" } } }, "localname": "FundingArrangementsOfDefinedBenefitPlansMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_GainLossRecognisedAsResultOfRemeasuringToFairValueEquityInterestInAcquireeHeldByAcquirerBeforeBusinessCombination": { "auth_ref": [ "r287" ], "crdr": "credit", "lang": { "en": { "role": { "documentation": "The gain (loss) recognised as result of remeasuring to fair value the equity interest in the acquiree held by the acquirer before the business combination. [Refer: Business combinations [member]]" } }, "en-us": { "role": { "label": "Gain (loss) recognised as result of remeasuring to fair value equity interest in acquiree held by acquirer before business combination", "terseLabel": "Gain recognised as result of remeasuring to fair value equity interest in acquiree held by acquirer before business combination" } } }, "localname": "GainLossRecognisedAsResultOfRemeasuringToFairValueEquityInterestInAcquireeHeldByAcquirerBeforeBusinessCombination", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_GainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTrading": { "auth_ref": [ "r380" ], "crdr": "credit", "lang": { "en": { "role": { "documentation": "The gains (losses) on financial assets at fair value through profit or loss classified as held for trading. [Refer: Financial assets at fair value through profit or loss, classified as held for trading; Gains (losses) on financial assets at fair value through profit or loss]" } }, "en-us": { "role": { "label": "Gains (losses) on financial assets at fair value through profit or loss, classified as held for trading", "terseLabel": "Fair value remeasurement of trade investments" } } }, "localname": "GainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTrading", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureOperatingProfitDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_GainsLossesOnRemeasuringAvailableforsaleFinancialAssetsBeforeTax": { "auth_ref": [ "r376", "r381" ], "crdr": "credit", "lang": { "en": { "role": { "documentation": "The gains (losses) recognised in other comprehensive income on remeasuring available-for-sale financial assets, before tax, before reclassification adjustments. [Refer: Financial assets available-for-sale]" } }, "en-us": { "role": { "label": "Gains (losses) on remeasuring available-for-sale financial assets, before tax", "terseLabel": "Fair value remeasurement" } } }, "localname": "GainsLossesOnRemeasuringAvailableforsaleFinancialAssetsBeforeTax", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureInvestmentsDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_GainsLossesRecognisedInProfitOrLossFairValueMeasurementAssets": { "auth_ref": [ "r244" ], "lang": { "en": { "role": { "documentation": "The gains (losses) including exchange differences recognised in profit or loss on the fair value measurement of assets. [Refer: At fair value [member]]" } }, "en-us": { "role": { "label": "Gains (losses) recognised in profit or loss including exchange differences, fair value measurement, assets", "terseLabel": "Fair value remeasurement" } } }, "localname": "GainsLossesRecognisedInProfitOrLossFairValueMeasurementAssets", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementMovementOfFinancialInstrumentsDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_GeographicalAreasAxis": { "auth_ref": [ "r93", "r264", "r353", "r366" ], "lang": { "en": { "role": { "documentation": "The axis of a table defines the relationship between the members in the table and the line items or concepts that complete the table." } }, "en-us": { "role": { "label": "Geographical areas [axis]" } } }, "localname": "GeographicalAreasAxis", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationAssetsAndLiabilitiesByBusinessSegmentAndGeographyDetails", "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationDetails", "http://www.smith-nephew.com/role/DisclosureEarningsPerOrdinaryShareCalculationOfBasicDilutedAndAdjustedEarningsPerShareDetails", "http://www.smith-nephew.com/role/DisclosureOperatingProfitInformationAboutNatureAndCostOfServicesDetails", "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsDetails", "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsPlanAssetsDetails", "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsPrincipalActuarialAssumptionsDetails", "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsReconciliationOfBenefitObligationsAndPensionAssetsDetails", "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsSensitivityAnalysisDetails", "http://www.smith-nephew.com/role/DisclosureTaxationFactorsAffectingFutureTaxChargesDetails", "http://www.smith-nephew.com/role/DisclosureTaxationTaxationAttributableToGroupDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_GeographicalAreasMember": { "auth_ref": [ "r93", "r264", "r353", "r366" ], "lang": { "en": { "role": { "documentation": "This member stands for aggregated geographical areas. It also represents the standard value for the 'Geographical areas' axis if no other member is used." } }, "en-us": { "role": { "label": "Geographical areas [member]" } } }, "localname": "GeographicalAreasMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationAssetsAndLiabilitiesByBusinessSegmentAndGeographyDetails", "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationDetails", "http://www.smith-nephew.com/role/DisclosureEarningsPerOrdinaryShareCalculationOfBasicDilutedAndAdjustedEarningsPerShareDetails", "http://www.smith-nephew.com/role/DisclosureOperatingProfitInformationAboutNatureAndCostOfServicesDetails", "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsDetails", "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsPlanAssetsDetails", "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsPrincipalActuarialAssumptionsDetails", "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsReconciliationOfBenefitObligationsAndPensionAssetsDetails", "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsSensitivityAnalysisDetails", "http://www.smith-nephew.com/role/DisclosureTaxationFactorsAffectingFutureTaxChargesDetails", "http://www.smith-nephew.com/role/DisclosureTaxationTaxationAttributableToGroupDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_Goodwill": { "auth_ref": [ "r17", "r160", "r165", "r294" ], "calculation": { "http://www.smith-nephew.com/role/StatementGroupBalanceSheet": { "order": 2.0, "parentTag": "ifrs-full_NoncurrentAssets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount of assets representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognised. [Refer: Business combinations [member]]" } }, "en-us": { "role": { "label": "Goodwill.", "periodEndLabel": "Goodwill, ending balance", "periodStartLabel": "Goodwill, beginning balance", "terseLabel": "Goodwill" } } }, "localname": "Goodwill", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails", "http://www.smith-nephew.com/role/DisclosureGoodwillDetails", "http://www.smith-nephew.com/role/StatementGroupBalanceSheet" ], "xbrltype": "monetaryItemType" }, "ifrs-full_GoodwillRecognisedAsOfAcquisitionDate": { "auth_ref": [ "r290", "r296" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails": { "order": 2.0, "parentTag": "snn_ConsiderationTransferredNetOfCashAcquiredAcquisitionDateFairValue", "weight": -1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount recognised as of the business combination's acquisition date for goodwill. [Refer: Goodwill; Business combinations [member]]" } }, "en-us": { "role": { "label": "Goodwill recognised as of acquisition date", "terseLabel": "Goodwill" } } }, "localname": "GoodwillRecognisedAsOfAcquisitionDate", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_GrossCarryingAmountMember": { "auth_ref": [ "r80", "r176", "r194", "r197", "r294", "r314", "r317", "r318", "r385", "r391" ], "lang": { "en": { "role": { "documentation": "This member stands for the amount at which an asset is recognised before deducting any accumulated depreciation (amortisation) and accumulated impairment losses thereon. [Refer: Depreciation and amortisation expense; Impairment loss]" } }, "en-us": { "role": { "label": "Cost" } } }, "localname": "GrossCarryingAmountMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureGoodwillDetails", "http://www.smith-nephew.com/role/DisclosureIntangibleAssetsDetails", "http://www.smith-nephew.com/role/DisclosurePropertyPlantAndEquipmentDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_GrossProfit": { "auth_ref": [ "r2" ], "calculation": { "http://www.smith-nephew.com/role/StatementGroupIncomeStatement": { "order": 1.0, "parentTag": "ifrs-full_ProfitLossFromOperatingActivities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en": { "role": { "documentation": "The amount of revenue less cost of sales. [Refer: Cost of sales; Revenue]" } }, "en-us": { "role": { "label": "Gross profit", "totalLabel": "Gross profit" } } }, "localname": "GrossProfit", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureOperatingProfitDetails", "http://www.smith-nephew.com/role/StatementGroupIncomeStatement" ], "xbrltype": "monetaryItemType" }, "ifrs-full_HedgesOfNetInvestmentInForeignOperationsMember": { "auth_ref": [ "r191", "r303", "r304", "r306" ], "lang": { "en": { "role": { "documentation": "This member stands for hedges of the entity's monetary items that are receivable from or payable to a foreign operation, for which settlement is neither planned nor likely to occur in the foreseeable future. A foreign operation is an entity that is a subsidiary, associate, joint venture or branch of a reporting entity, the activities of which are based or conducted in a country or currency other than those of the reporting entity." } }, "en-us": { "role": { "label": "Net investment hedge" } } }, "localname": "HedgesOfNetInvestmentInForeignOperationsMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementNetInvestmentHedgeDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_HedgingInstrumentAssets": { "auth_ref": [ "r301" ], "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount of a hedging instrument, recognised as an asset. [Refer: Hedging instruments [member]]" } }, "en-us": { "role": { "label": "Hedging instrument, assets", "terseLabel": "Carrying Amount Assets" } } }, "localname": "HedgingInstrumentAssets", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementHedgeDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_HedgingInstrumentLiabilities": { "auth_ref": [ "r301" ], "crdr": "credit", "lang": { "en": { "role": { "documentation": "The amount of a hedging instrument, recognised as a liability. [Refer: Hedging instruments [member]]" } }, "en-us": { "role": { "label": "Hedging instrument, liabilities", "negatedLabel": "Carrying Amount Liabilities" } } }, "localname": "HedgingInstrumentLiabilities", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementHedgeDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_IdentifiableAssetsAcquiredLiabilitiesAssumed": { "auth_ref": [ "r285", "r296" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails": { "order": 1.0, "parentTag": "snn_ConsiderationTransferredNetOfCashAcquiredAcquisitionDateFairValue", "weight": -1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount recognised as of the acquisition date for net identifiable assets acquired or liabilities assumed in a business combination. [Refer: Business combinations [member]]" } }, "en-us": { "role": { "label": "Identifiable assets acquired (liabilities assumed)", "totalLabel": "Net assets" } } }, "localname": "IdentifiableAssetsAcquiredLiabilitiesAssumed", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_IdentifiableIntangibleAssetsRecognisedAsOfAcquisitionDate": { "auth_ref": [ "r285", "r296" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails": { "order": 1.0, "parentTag": "ifrs-full_IdentifiableAssetsAcquiredLiabilitiesAssumed", "weight": 1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount recognised as of the acquisition date for identifiable intangible assets acquired in a business combination. [Refer: Intangible assets other than goodwill; Business combinations [member]]" } }, "en-us": { "role": { "label": "Identifiable intangible assets recognised as of acquisition date", "terseLabel": "Intangible assets" } } }, "localname": "IdentifiableIntangibleAssetsRecognisedAsOfAcquisitionDate", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_ImpairmentLoss": { "auth_ref": [ "r157", "r158" ], "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount recognised as a reduction of the carrying amount of an asset or cash-generating unit to its recoverable amount. [Refer: Carrying amount [member]]" } }, "en-us": { "role": { "label": "Impairment loss", "verboseLabel": "Impairment charges" } } }, "localname": "ImpairmentLoss", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureIntangibleAssetsDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_ImpairmentLossRecognisedInProfitOrLossIntangibleAssetsAndGoodwill": { "auth_ref": [ "r179" ], "lang": { "en": { "role": { "documentation": "The amount of impairment loss recognised in profit or loss for intangible assets and goodwill. [Refer: Impairment loss recognised in profit or loss; Intangible assets and goodwill]" } }, "en-us": { "role": { "label": "Impairment loss recognised in profit or loss, intangible assets and goodwill", "verboseLabel": "Impairment of intangible assets" } } }, "localname": "ImpairmentLossRecognisedInProfitOrLossIntangibleAssetsAndGoodwill", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureOperatingProfitDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_ImpairmentLossRecognisedInProfitOrLossIntangibleAssetsOtherThanGoodwill": { "auth_ref": [ "r179" ], "lang": { "en": { "role": { "documentation": "The amount of impairment loss recognised in profit or loss for intangible assets other than goodwill. [Refer: Impairment loss recognised in profit or loss; Intangible assets other than goodwill]" } }, "en-us": { "role": { "label": "Impairment loss recognised in profit or loss, intangible assets other than goodwill", "verboseLabel": "Charge for the year - impairment" } } }, "localname": "ImpairmentLossRecognisedInProfitOrLossIntangibleAssetsOtherThanGoodwill", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureIntangibleAssetsDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment": { "auth_ref": [ "r54", "r84" ], "lang": { "en": { "role": { "documentation": "The amount of impairment loss recognised in profit or loss for property, plant and equipment. [Refer: Impairment loss recognised in profit or loss; Property, plant and equipment]" } }, "en-us": { "role": { "label": "Impairment loss recognised in profit or loss, property, plant and equipment", "negatedNetLabel": "Impairment", "verboseLabel": "Impairment of property, plant and equipment" } } }, "localname": "ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureOperatingProfitDetails", "http://www.smith-nephew.com/role/DisclosurePropertyPlantAndEquipmentDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossTradeReceivables": { "auth_ref": [ "r12" ], "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount of impairment loss or reversal of impairment loss recognised in profit or loss for trade receivables. [Refer: Impairment loss recognised in profit or loss; Reversal of impairment loss recognised in profit or loss; Trade receivables]" } }, "en-us": { "role": { "label": "Impairment loss (reversal of impairment loss) recognised in profit or loss, trade receivables", "terseLabel": "Net receivables provided during the year", "verboseLabel": "Bad debt expense" } } }, "localname": "ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossTradeReceivables", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTradeAndOtherReceivablesMovementsInProvisionForBadAndDoubtfulDebtsDetails", "http://www.smith-nephew.com/role/DisclosureTradeAndOtherReceivablesTradeReceivablesPastDueDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_IncomeStatementAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "GROUP INCOME STATEMENT" } } }, "localname": "IncomeStatementAbstract", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "xbrltype": "stringItemType" }, "ifrs-full_IncomeTaxExpenseContinuingOperations": { "auth_ref": [ "r47", "r62", "r71", "r72", "r143", "r239", "r343" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureTaxationFactorsAffectingFutureTaxChargesDetails": { "order": null, "parentTag": null, "root": true, "weight": null }, "http://www.smith-nephew.com/role/DisclosureTaxationTaxationAttributableToGroupDetails": { "order": 1.0, "parentTag": "snn_IncomeTaxExpenseRelatingToContinuingOperationsComponentsOfOtherComprehensiveIncomeAndItemsChargedOrCreditedDirectlyToEquity", "weight": 1.0 }, "http://www.smith-nephew.com/role/StatementGroupIncomeStatement": { "order": 2.0, "parentTag": "ifrs-full_ProfitLoss", "weight": -1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The aggregate amount included in the determination of profit (loss) for the period in respect of current tax and deferred tax. [Refer: Current tax expense (income); Deferred tax expense (income)]" } }, "en-us": { "role": { "label": "Tax expense (income), continuing operations", "negatedLabel": "Taxation", "totalLabel": "Total taxation as per the income statement" } } }, "localname": "IncomeTaxExpenseContinuingOperations", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationFactorsAffectingFutureTaxChargesDetails", "http://www.smith-nephew.com/role/DisclosureTaxationTaxationAttributableToGroupDetails", "http://www.smith-nephew.com/role/StatementGroupIncomeStatement" ], "xbrltype": "monetaryItemType" }, "ifrs-full_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome": { "auth_ref": [ "r50", "r70" ], "lang": { "en": { "role": { "documentation": "The amount of income tax relating to amounts recognised in other comprehensive income. [Refer: Other comprehensive income]" } }, "en-us": { "role": { "label": "Income tax relating to components of other comprehensive income", "negatedLabel": "Movement in other comprehensive income" } } }, "localname": "IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationDeferredTaxationDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLoss": { "auth_ref": [ "r53" ], "calculation": { "http://www.smith-nephew.com/role/StatementGroupStatementOfComprehensiveIncome": { "order": 4.0, "parentTag": "ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax", "weight": -1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount of income tax relating to amounts recognised in other comprehensive income that will be reclassified to profit or loss. [Refer: Income tax relating to components of other comprehensive income]" } }, "en-us": { "role": { "label": "Income tax relating to components of other comprehensive income that will be reclassified to profit or loss", "negatedLabel": "Taxation on other comprehensive income" } } }, "localname": "IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLoss", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/StatementGroupStatementOfComprehensiveIncome" ], "xbrltype": "monetaryItemType" }, "ifrs-full_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLoss": { "auth_ref": [ "r53" ], "calculation": { "http://www.smith-nephew.com/role/StatementGroupStatementOfComprehensiveIncome": { "order": 2.0, "parentTag": "ifrs-full_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax", "weight": -1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount of income tax relating to amounts recognised in other comprehensive income that will not be reclassified to profit or loss. [Refer: Income tax relating to components of other comprehensive income]" } }, "en-us": { "role": { "label": "Income tax relating to components of other comprehensive income that will not be reclassified to profit or loss", "negatedLabel": "Taxation on other comprehensive income" } } }, "localname": "IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLoss", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/StatementGroupStatementOfComprehensiveIncome" ], "xbrltype": "monetaryItemType" }, "ifrs-full_IncomeTaxesPaidClassifiedAsOperatingActivities": { "auth_ref": [ "r212" ], "calculation": { "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement": { "order": 3.0, "parentTag": "ifrs-full_CashFlowsFromUsedInOperatingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en": { "role": { "documentation": "The cash outflow for income taxes paid, classified as operating activities." } }, "en-us": { "role": { "label": "Income taxes paid, classified as operating activities", "negatedTerseLabel": "Income taxes (paid)" } } }, "localname": "IncomeTaxesPaidClassifiedAsOperatingActivities", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement" ], "xbrltype": "monetaryItemType" }, "ifrs-full_IncomeTaxesRefundClassifiedAsOperatingActivities": { "auth_ref": [ "r212" ], "calculation": { "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement": { "order": 4.0, "parentTag": "ifrs-full_CashFlowsFromUsedInOperatingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The cash inflow from income taxes refunded, classified as operating activities." } }, "en-us": { "role": { "label": "Income taxes refund, classified as operating activities", "terseLabel": "Income taxes refunded" } } }, "localname": "IncomeTaxesRefundClassifiedAsOperatingActivities", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement" ], "xbrltype": "monetaryItemType" }, "ifrs-full_IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges": { "auth_ref": [ "r215" ], "calculation": { "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The increase (decrease) in cash and cash equivalents before the effect of exchange rate changes on cash and cash equivalents held in foreign currencies. [Refer: Cash and cash equivalents; Effect of exchange rate changes on cash and cash equivalents]" } }, "en-us": { "role": { "label": "Increase (decrease) in cash and cash equivalents before effect of exchange rate changes", "totalLabel": "Net (decrease)/increase in cash and cash equivalents", "verboseLabel": "Net cash flow from cash net of overdrafts" } } }, "localname": "IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashFlowStatementReconciliationOfNetCashFlowToMovementInNetDebtDetails", "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement" ], "xbrltype": "monetaryItemType" }, "ifrs-full_IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleDecreaseInActuarialAssumption": { "auth_ref": [ "r115" ], "crdr": "credit", "lang": { "en": { "role": { "documentation": "The increase (decrease) in a defined benefit obligation that would have been caused by a decrease in a significant actuarial assumption that was reasonably possible at the end of the reporting period. [Refer: Actuarial assumptions [member]]" } }, "en-us": { "role": { "label": "Increase (decrease) in defined benefit obligation due to reasonably possible decrease in actuarial assumption", "terseLabel": "Pension obligation -50bps/-1yr" } } }, "localname": "IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleDecreaseInActuarialAssumption", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsSensitivityAnalysisDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleIncreaseInActuarialAssumption": { "auth_ref": [ "r115" ], "crdr": "credit", "lang": { "en": { "role": { "documentation": "The increase (decrease) in a defined benefit obligation that would have been caused by an increase in a significant actuarial assumption that was reasonably possible at the end of the reporting period. [Refer: Actuarial assumptions [member]]" } }, "en-us": { "role": { "label": "Increase (decrease) in defined benefit obligation due to reasonably possible increase in actuarial assumption", "terseLabel": "Pension obligation +50bps/+1yr" } } }, "localname": "IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleIncreaseInActuarialAssumption", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsSensitivityAnalysisDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_IncreaseDecreaseThroughBusinessCombinationsDeferredTaxLiabilityAsset": { "auth_ref": [ "r76" ], "crdr": "credit", "lang": { "en": { "role": { "documentation": "The increase (decrease) in deferred tax liability (asset) resulting from business combinations. [Refer: Deferred tax liability (asset)]" } }, "en-us": { "role": { "label": "Increase (decrease) through business combinations, deferred tax liability (asset)", "negatedLabel": "Acquisitions" } } }, "localname": "IncreaseDecreaseThroughBusinessCombinationsDeferredTaxLiabilityAsset", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationDeferredTaxationDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_IncreaseDecreaseThroughChangesInForeignExchangeRatesNetDefinedBenefitLiabilityAsset": { "auth_ref": [ "r106" ], "crdr": "credit", "lang": { "en": { "role": { "documentation": "The increase (decrease) in the net defined benefit liability (asset) resulting from changes in foreign exchange rates. [Refer: Net defined benefit liability (asset)]" } }, "en-us": { "role": { "label": "Increase (decrease) through changes in foreign exchange rates, net defined benefit liability (asset)", "terseLabel": "Exchange rates" } } }, "localname": "IncreaseDecreaseThroughChangesInForeignExchangeRatesNetDefinedBenefitLiabilityAsset", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsReconciliationOfBenefitObligationsAndPensionAssetsDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesDeferredTaxLiabilityAsset": { "auth_ref": [ "r76" ], "crdr": "credit", "lang": { "en": { "role": { "documentation": "The increase (decrease) in deferred tax liability (asset) resulting from the net exchange differences arising when the financial statements are translated from the functional currency into a different presentation currency, including the translation of a foreign operation into the presentation currency of the reporting entity. [Refer: Deferred tax liability (asset)]" } }, "en-us": { "role": { "label": "Increase (decrease) through net exchange differences, deferred tax liability (asset)", "negatedLabel": "Exchange adjustment" } } }, "localname": "IncreaseDecreaseThroughNetExchangeDifferencesDeferredTaxLiabilityAsset", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationDeferredTaxationDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesGoodwill": { "auth_ref": [ "r293" ], "crdr": "debit", "lang": { "en": { "role": { "documentation": "The increase (decrease) in goodwill resulting from net exchange differences arising on the translation of the financial statements from the functional currency into a different presentation currency, including the translation of a foreign operation into the presentation currency of the reporting entity. [Refer: Goodwill]" } }, "en-us": { "role": { "label": "Increase (decrease) through net exchange differences, goodwill", "terseLabel": "Exchange adjustment" } } }, "localname": "IncreaseDecreaseThroughNetExchangeDifferencesGoodwill", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails", "http://www.smith-nephew.com/role/DisclosureGoodwillDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsOtherThanGoodwill": { "auth_ref": [ "r181" ], "crdr": "debit", "lang": { "en": { "role": { "documentation": "The increase (decrease) in intangible assets other than goodwill resulting from net exchange differences arising on the translation of the financial statements from the functional currency into a different presentation currency, including the translation of a foreign operation into the presentation currency of the reporting entity. [Refer: Intangible assets other than goodwill]" } }, "en-us": { "role": { "label": "Increase (decrease) through net exchange differences, intangible assets other than goodwill", "terseLabel": "Exchange adjustment" } } }, "localname": "IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsOtherThanGoodwill", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureIntangibleAssetsDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesOtherProvisions": { "auth_ref": [ "r171" ], "crdr": "credit", "lang": { "en": { "role": { "documentation": "The increase (decrease) in other provisions resulting from foreign currency exchange rate changes on provisions measured in a currency different from the entity's presentation currency. [Refer: Other provisions]" } }, "en-us": { "role": { "label": "Increase (decrease) through net exchange differences, other provisions", "negatedLabel": "Foreign exchange movements", "terseLabel": "Exchange adjustment" } } }, "localname": "IncreaseDecreaseThroughNetExchangeDifferencesOtherProvisions", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureInventoriesDetails", "http://www.smith-nephew.com/role/DisclosureProvisionsAndContingenciesChangesInProvisionsDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment": { "auth_ref": [ "r86" ], "crdr": "debit", "lang": { "en": { "role": { "documentation": "The increase (decrease) in property, plant and equipment resulting from net exchange differences arising on the translation of the financial statements from the functional currency into a different presentation currency, including the translation of a foreign operation into the presentation currency of the reporting entity. [Refer: Property, plant and equipment]" } }, "en-us": { "role": { "label": "Increase (decrease) through net exchange differences, property, plant and equipment", "terseLabel": "Exchange adjustment" } } }, "localname": "IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosurePropertyPlantAndEquipmentDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_IncreaseDecreaseThroughSharebasedPaymentTransactions": { "auth_ref": [ "r7" ], "crdr": "credit", "lang": { "en": { "role": { "documentation": "The increase (decrease) in equity resulting from share-based payment transactions. [Refer: Equity]" } }, "en-us": { "role": { "label": "Increase (decrease) through share-based payment transactions, equity", "terseLabel": "Share-based payments recognised" } } }, "localname": "IncreaseDecreaseThroughSharebasedPaymentTransactions", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/StatementGroupStatementOfChangesInEquity" ], "xbrltype": "monetaryItemType" }, "ifrs-full_IncreaseDecreaseThroughTimeValueOfMoneyAdjustmentOtherProvisions": { "auth_ref": [ "r170" ], "crdr": "credit", "lang": { "en": { "role": { "documentation": "The increase in other provisions through adjustments arising from the passage of time. [Refer: Other provisions]" } }, "en-us": { "role": { "label": "Increase through adjustments arising from passage of time, other provisions", "terseLabel": "Unwinding of discount" } } }, "localname": "IncreaseDecreaseThroughTimeValueOfMoneyAdjustmentOtherProvisions", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureProvisionsAndContingenciesChangesInProvisionsDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_IncreaseDecreaseThroughTransfersIntangibleAssetsOtherThanGoodwill": { "auth_ref": [ "r182" ], "crdr": "debit", "lang": { "en": { "role": { "documentation": "The increase (decrease) in intangible assets other than goodwill resulting from transfers. [Refer: Intangible assets other than goodwill]" } }, "en-us": { "role": { "label": "Increase (decrease) through transfers, intangible assets other than goodwill", "terseLabel": "Transfers" } } }, "localname": "IncreaseDecreaseThroughTransfersIntangibleAssetsOtherThanGoodwill", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureIntangibleAssetsDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_IncreaseDecreaseThroughTransfersPropertyPlantAndEquipment": { "auth_ref": [ "r87" ], "crdr": "debit", "lang": { "en": { "role": { "documentation": "The increase (decrease) in property, plant and equipment resulting from transfers. [Refer: Property, plant and equipment]" } }, "en-us": { "role": { "label": "Increase (decrease) through transfers, property, plant and equipment", "terseLabel": "Transfers" } } }, "localname": "IncreaseDecreaseThroughTransfersPropertyPlantAndEquipment", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosurePropertyPlantAndEquipmentDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_IndividualAssetsOrCashgeneratingUnitsAxis": { "auth_ref": [ "r159" ], "lang": { "en": { "role": { "documentation": "The axis of a table defines the relationship between the members in the table and the line items or concepts that complete the table." } }, "en-us": { "role": { "label": "Individual assets or cash-generating units [axis]" } } }, "localname": "IndividualAssetsOrCashgeneratingUnitsAxis", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureGoodwillDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_IntangibleAssetsOtherThanGoodwill": { "auth_ref": [ "r17", "r182" ], "calculation": { "http://www.smith-nephew.com/role/StatementGroupBalanceSheet": { "order": 3.0, "parentTag": "ifrs-full_NoncurrentAssets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount of identifiable non-monetary assets without physical substance. This amount does not include goodwill. [Refer: Goodwill]" } }, "en-us": { "role": { "label": "Intangible assets other than goodwill", "periodEndLabel": "Carrying value, ending balance", "periodStartLabel": "Carrying value, beginning balance", "terseLabel": "Intangible assets" } } }, "localname": "IntangibleAssetsOtherThanGoodwill", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureIntangibleAssetsDetails", "http://www.smith-nephew.com/role/StatementGroupBalanceSheet" ], "xbrltype": "monetaryItemType" }, "ifrs-full_IntangibleAssetsOtherThanGoodwillMember": { "auth_ref": [ "r156", "r183", "r272" ], "lang": { "en": { "role": { "documentation": "This member stands for intangible assets other than goodwill. It also represents the standard value for the 'Classes of intangible assets other than goodwill' axis if no other member is used. [Refer: Intangible assets other than goodwill]" } }, "en-us": { "role": { "label": "Intangible assets other than goodwill [member]" } } }, "localname": "IntangibleAssetsOtherThanGoodwillMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails", "http://www.smith-nephew.com/role/DisclosureIntangibleAssetsDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_IntangibleAssetsUnderDevelopmentMember": { "auth_ref": [ "r185" ], "lang": { "en": { "role": { "documentation": "This member stands for a class of intangible assets representing such assets under development. [Refer: Intangible assets other than goodwill]" } }, "en-us": { "role": { "label": "Assets in course of construction." } } }, "localname": "IntangibleAssetsUnderDevelopmentMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureIntangibleAssetsDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_InterestCostsAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Interest costs [abstract]", "terseLabel": "Interest expense:" } } }, "localname": "InterestCostsAbstract", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureInterestAndOtherFinanceCostsInterestIncomeExpenseDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_InterestExpense": { "auth_ref": [ "r238", "r341", "r348" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureInterestAndOtherFinanceCostsInterestIncomeExpenseDetails": { "order": 1.0, "parentTag": "ifrs-full_InterestRevenueExpense", "weight": -1.0 }, "http://www.smith-nephew.com/role/StatementGroupIncomeStatement": { "order": 3.0, "parentTag": "ifrs-full_ProfitLossBeforeTax", "weight": -1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount of expense arising from interest." } }, "en-us": { "role": { "label": "Interest expense", "negatedLabel": "Interest expense", "negatedTotalLabel": "Total interest expense" } } }, "localname": "InterestExpense", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureInterestAndOtherFinanceCostsInterestIncomeExpenseDetails", "http://www.smith-nephew.com/role/StatementGroupIncomeStatement" ], "xbrltype": "monetaryItemType" }, "ifrs-full_InterestExpenseIncomeNetDefinedBenefitLiabilityAsset": { "auth_ref": [ "r101" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsReconciliationOfBenefitObligationsAndPensionAssetsDetails": { "order": 4.0, "parentTag": "snn_CostRecognisedInIncomeStatementNetDefinedBenefitLiabilityAsset", "weight": 1.0 } }, "crdr": "credit", "lang": { "en": { "role": { "documentation": "The increase (decrease) in the net defined benefit liability (asset) resulting from the passage of time. [Refer: Interest expense; Net defined benefit liability (asset)]" } }, "en-us": { "role": { "label": "Interest expense (income), net defined benefit liability (asset)", "negatedTerseLabel": "Interest (expense)/income" } } }, "localname": "InterestExpenseIncomeNetDefinedBenefitLiabilityAsset", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsReconciliationOfBenefitObligationsAndPensionAssetsDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_InterestExpenseOnBorrowings": { "auth_ref": [ "r12" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureInterestAndOtherFinanceCostsInterestIncomeExpenseDetails": { "order": 1.0, "parentTag": "ifrs-full_InterestExpense", "weight": 1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount of interest expense on borrowings. [Refer: Interest expense; Borrowings]" } }, "en-us": { "role": { "label": "Interest expense on borrowings", "negatedLabel": "Bank borrowings" } } }, "localname": "InterestExpenseOnBorrowings", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureInterestAndOtherFinanceCostsInterestIncomeExpenseDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_InterestExpenseOnDebtInstrumentsIssued": { "auth_ref": [ "r12" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureInterestAndOtherFinanceCostsInterestIncomeExpenseDetails": { "order": 2.0, "parentTag": "ifrs-full_InterestExpense", "weight": 1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount of interest expense on debt instruments issued. [Refer: Interest expense; Debt instruments issued]" } }, "en-us": { "role": { "label": "Interest expense on debt instruments issued", "negatedLabel": "Corporate bond" } } }, "localname": "InterestExpenseOnDebtInstrumentsIssued", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureInterestAndOtherFinanceCostsInterestIncomeExpenseDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_InterestExpenseOnLeaseLiabilities": { "auth_ref": [ "r268" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureInterestAndOtherFinanceCostsInterestIncomeExpenseDetails": { "order": 4.0, "parentTag": "ifrs-full_InterestExpense", "weight": 1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount of interest expense on lease liabilities. [Refer: Lease liabilities]" } }, "en-us": { "role": { "label": "Interest expense on lease liabilities", "negatedLabel": "Lease liabilities" } } }, "localname": "InterestExpenseOnLeaseLiabilities", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureInterestAndOtherFinanceCostsInterestIncomeExpenseDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_InterestExpenseOnOtherFinancialLiabilities": { "auth_ref": [ "r12" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureInterestAndOtherFinanceCostsInterestIncomeExpenseDetails": { "order": 3.0, "parentTag": "ifrs-full_InterestExpense", "weight": 1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount of interest expense on other financial liabilities. [Refer: Interest expense; Other financial liabilities]" } }, "en-us": { "role": { "label": "Interest expense on other financial liabilities", "negatedLabel": "Other" } } }, "localname": "InterestExpenseOnOtherFinancialLiabilities", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureInterestAndOtherFinanceCostsInterestIncomeExpenseDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_InterestPaidClassifiedAsOperatingActivities": { "auth_ref": [ "r211" ], "calculation": { "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement": { "order": 5.0, "parentTag": "ifrs-full_CashFlowsFromUsedInOperatingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en": { "role": { "documentation": "The cash outflow for interest paid, classified as operating activities." } }, "en-us": { "role": { "label": "Interest paid, classified as operating activities", "negatedTerseLabel": "Interest paid" } } }, "localname": "InterestPaidClassifiedAsOperatingActivities", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement" ], "xbrltype": "monetaryItemType" }, "ifrs-full_InterestRateRiskMember": { "auth_ref": [ "r340", "r360", "r361", "r362", "r363" ], "lang": { "en": { "role": { "documentation": "This member stands for the type of risk that the fair value or future cash flows of a financial instrument will fluctuate because of changes in market interest rates. [Refer: Financial instruments, class [member]]" } }, "en-us": { "role": { "label": "Interest rate risk" } } }, "localname": "InterestRateRiskMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementHedgeDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementInterestRateExposuresDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_InterestRateSwapContractMember": { "auth_ref": [ "r12" ], "lang": { "en": { "role": { "documentation": "This member stands for an interest rate swap contract. [Refer: Swap contract [member]]" } }, "en-us": { "role": { "label": "Interest swaps" } } }, "localname": "InterestRateSwapContractMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsNetDebtDetails", "http://www.smith-nephew.com/role/DisclosureCashFlowStatementAnalysisOfNetDebtDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementFairValueDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementHedgeDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementInterestBearingAssetsDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_InterestRateTypesMember": { "auth_ref": [ "r320" ], "lang": { "en": { "role": { "documentation": "This member stands for all types of interest rates. It also represents the standard value for the 'Types of interest rates' axis if no other member is used. [Refer: Interest rate risk [member]]" } }, "en-us": { "role": { "label": "Interest rate types [member]" } } }, "localname": "InterestRateTypesMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementInterestBearingAssetsDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementInterestBearingLiabilitiesDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_InterestReceivedClassifiedAsOperatingActivities": { "auth_ref": [ "r211" ], "calculation": { "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement": { "order": 2.0, "parentTag": "ifrs-full_CashFlowsFromUsedInOperatingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The cash inflow from interest received, classified as operating activities." } }, "en-us": { "role": { "label": "Interest received, classified as operating activities", "terseLabel": "Interest received" } } }, "localname": "InterestReceivedClassifiedAsOperatingActivities", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement" ], "xbrltype": "monetaryItemType" }, "ifrs-full_InterestRevenueExpense": { "auth_ref": [ "r49", "r344", "r348" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureInterestAndOtherFinanceCostsInterestIncomeExpenseDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en": { "role": { "documentation": "The amount of income or expense arising from interest. [Refer: Interest expense; Interest income]" } }, "en-us": { "role": { "label": "Interest income (expense)", "totalLabel": "Net interest expense" } } }, "localname": "InterestRevenueExpense", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureInterestAndOtherFinanceCostsInterestIncomeExpenseDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_Inventories": { "auth_ref": [ "r18", "r32", "r127" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureInventoriesDetails": { "order": null, "parentTag": null, "root": true, "weight": null }, "http://www.smith-nephew.com/role/StatementGroupBalanceSheet": { "order": 1.0, "parentTag": "ifrs-full_CurrentAssets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount of current inventories. [Refer: Inventories]" } }, "en-us": { "role": { "label": "Current inventories", "terseLabel": "Inventories", "totalLabel": "Total inventories" } } }, "localname": "Inventories", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureInventoriesDetails", "http://www.smith-nephew.com/role/StatementGroupBalanceSheet" ], "xbrltype": "monetaryItemType" }, "ifrs-full_InventoryRecognisedAsOfAcquisitionDate": { "auth_ref": [ "r285", "r296" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails": { "order": 5.0, "parentTag": "ifrs-full_IdentifiableAssetsAcquiredLiabilitiesAssumed", "weight": 1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount recognised as of the acquisition date for inventory acquired in a business combination. [Refer: Inventories; Business combinations [member]]" } }, "en-us": { "role": { "label": "Inventory recognised as of acquisition date", "terseLabel": "Inventory" } } }, "localname": "InventoryRecognisedAsOfAcquisitionDate", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_InvestmentFundsAmountContributedToFairValueOfPlanAssets": { "auth_ref": [ "r112" ], "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount investment funds contribute to the fair value of defined benefit plan assets. [Refer: Plan assets, at fair value; Defined benefit plans [member]; Investment funds [member]]" } }, "en-us": { "role": { "label": "Investment funds, amount contributed to fair value of plan assets", "terseLabel": "Diversified growth funds" } } }, "localname": "InvestmentFundsAmountContributedToFairValueOfPlanAssets", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsPlanAssetsDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_InvestmentsInAssociatesAccountedForUsingEquityMethod": { "auth_ref": [ "r27" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureInvestmentsInAssociatesSummarisedBalanceSheetDetails": { "order": null, "parentTag": null, "root": true, "weight": null }, "http://www.smith-nephew.com/role/StatementGroupBalanceSheet": { "order": 4.0, "parentTag": "ifrs-full_NoncurrentAssets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount of investments in associates accounted for using the equity method. [Refer: Associates [member]; Investments accounted for using equity method]" } }, "en-us": { "role": { "label": "Investments in associates accounted for using equity method", "netLabel": "Balance sheet", "terseLabel": "Investments in associates", "totalLabel": "Group's carrying amount of investment" } } }, "localname": "InvestmentsInAssociatesAccountedForUsingEquityMethod", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureInvestmentsInAssociatesAmountsRecognisedInBalanceSheetAndIncomeStatementDetails", "http://www.smith-nephew.com/role/DisclosureInvestmentsInAssociatesSummarisedBalanceSheetDetails", "http://www.smith-nephew.com/role/DisclosurePostBalanceSheetEventsDetails", "http://www.smith-nephew.com/role/StatementGroupBalanceSheet" ], "xbrltype": "monetaryItemType" }, "ifrs-full_IssueOfEquity": { "auth_ref": [ "r7" ], "crdr": "credit", "lang": { "en": { "role": { "documentation": "The increase in equity through the issue of equity instruments." } }, "en-us": { "role": { "label": "Issue of equity", "terseLabel": "Issue of ordinary share capital" } } }, "localname": "IssueOfEquity", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureInvestmentsInAssociatesAmountsRecognisedInBalanceSheetAndIncomeStatementDetails", "http://www.smith-nephew.com/role/DisclosurePostBalanceSheetEventsDetails", "http://www.smith-nephew.com/role/StatementGroupStatementOfChangesInEquity" ], "xbrltype": "monetaryItemType" }, "ifrs-full_IssuedCapital": { "auth_ref": [ "r38" ], "calculation": { "http://www.smith-nephew.com/role/StatementGroupBalanceSheet": { "order": 2.0, "parentTag": "ifrs-full_EquityAttributableToOwnersOfParent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en": { "role": { "documentation": "The nominal value of capital issued." } }, "en-us": { "role": { "label": "Issued capital", "terseLabel": "Share capital" } } }, "localname": "IssuedCapital", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/StatementGroupBalanceSheet" ], "xbrltype": "monetaryItemType" }, "ifrs-full_IssuedCapitalMember": { "auth_ref": [ "r9" ], "lang": { "en": { "role": { "documentation": "This member stands for a component of equity representing issued capital." } }, "en-us": { "role": { "label": "Share capital" } } }, "localname": "IssuedCapitalMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEquityEquityComponentsDetails", "http://www.smith-nephew.com/role/DisclosureEquityShareCapitalDetails", "http://www.smith-nephew.com/role/StatementGroupStatementOfChangesInEquity" ], "xbrltype": "domainItemType" }, "ifrs-full_KeyManagementPersonnelCompensation": { "auth_ref": [ "r137" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureOtherNotesToAccountsRelatedPartyTransactionsDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount of compensation to key management personnel. [Refer: Key management personnel of entity or parent [member]]" } }, "en-us": { "role": { "label": "Key management personnel compensation", "totalLabel": "Total remunerations" } } }, "localname": "KeyManagementPersonnelCompensation", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureOtherNotesToAccountsRelatedPartyTransactionsDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_KeyManagementPersonnelCompensationOtherLongtermBenefits": { "auth_ref": [ "r135" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureOtherNotesToAccountsRelatedPartyTransactionsDetails": { "order": 1.0, "parentTag": "ifrs-full_KeyManagementPersonnelCompensation", "weight": 1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount of compensation to key management personnel in the form of other long-term employee benefits. [Refer: Other long-term employee benefits; Key management personnel of entity or parent [member]]" } }, "en-us": { "role": { "label": "Key management personnel compensation, other long-term employee benefits", "terseLabel": "Compensation for loss of office" } } }, "localname": "KeyManagementPersonnelCompensationOtherLongtermBenefits", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureOtherNotesToAccountsRelatedPartyTransactionsDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_KeyManagementPersonnelCompensationPostemploymentBenefits": { "auth_ref": [ "r134" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureOtherNotesToAccountsRelatedPartyTransactionsDetails": { "order": 2.0, "parentTag": "ifrs-full_KeyManagementPersonnelCompensation", "weight": 1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount of compensation to key management personnel in the form of post-employment benefits. [Refer: Key management personnel of entity or parent [member]]" } }, "en-us": { "role": { "label": "Key management personnel compensation, post-employment benefits", "terseLabel": "Pension and post-employment benefit entitlements" } } }, "localname": "KeyManagementPersonnelCompensationPostemploymentBenefits", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureOtherNotesToAccountsRelatedPartyTransactionsDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_KeyManagementPersonnelCompensationSharebasedPayment": { "auth_ref": [ "r136" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureOtherNotesToAccountsRelatedPartyTransactionsDetails": { "order": 3.0, "parentTag": "ifrs-full_KeyManagementPersonnelCompensation", "weight": 1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount of compensation to key management personnel in the form of share-based payments. [Refer: Key management personnel of entity or parent [member]]" } }, "en-us": { "role": { "label": "Key management personnel compensation, share-based payment", "terseLabel": "Share-based payments expense" } } }, "localname": "KeyManagementPersonnelCompensationSharebasedPayment", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureOtherNotesToAccountsRelatedPartyTransactionsDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_KeyManagementPersonnelCompensationShorttermEmployeeBenefits": { "auth_ref": [ "r133" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureOtherNotesToAccountsRelatedPartyTransactionsDetails": { "order": 4.0, "parentTag": "ifrs-full_KeyManagementPersonnelCompensation", "weight": 1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount of compensation to key management personnel in the form of short-term employee benefits. [Refer: Key management personnel of entity or parent [member]]" } }, "en-us": { "role": { "label": "Key management personnel compensation, short-term employee benefits", "terseLabel": "Short-term employee benefits" } } }, "localname": "KeyManagementPersonnelCompensationShorttermEmployeeBenefits", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureOtherNotesToAccountsRelatedPartyTransactionsDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_KeyManagementPersonnelOfEntityOrParentMember": { "auth_ref": [ "r139" ], "lang": { "en": { "role": { "documentation": "This member stands for those persons having authority and responsibility for planning, directing and controlling the activities of the entity, directly or indirectly, including any director (whether executive or otherwise) of that entity." } }, "en-us": { "role": { "label": "Executive officers (including Non-Executive Directors)" } } }, "localname": "KeyManagementPersonnelOfEntityOrParentMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureOtherNotesToAccountsRelatedPartyTransactionsDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_LandAndBuildingsMember": { "auth_ref": [ "r78" ], "lang": { "en": { "role": { "documentation": "This member stands for a class of property, plant and equipment representing land and depreciable buildings and similar structures for use in operations. [Refer: Buildings; Land; Property, plant and equipment]" } }, "en-us": { "role": { "label": "Land and buildings" } } }, "localname": "LandAndBuildingsMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosurePropertyPlantAndEquipmentDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_LaterThanFiveYearsMember": { "auth_ref": [ "r273", "r275", "r330", "r335", "r338", "r365" ], "lang": { "en": { "role": { "documentation": "This member stands for a time band of later than five years." } }, "en-us": { "role": { "label": "After five years" } } }, "localname": "LaterThanFiveYearsMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsBorrowingsAreRepayableDetails", "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsYearEndFinancialLiabilitiesByContractualMaturityDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_LaterThanFourYearsAndNotLaterThanFiveYearsMember": { "auth_ref": [ "r12", "r273", "r275", "r330", "r338", "r365" ], "lang": { "en": { "role": { "documentation": "This member stands for a time band of later than four years and not later than five years." } }, "en-us": { "role": { "label": "Between four and five years" } } }, "localname": "LaterThanFourYearsAndNotLaterThanFiveYearsMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsBorrowingsAreRepayableDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_LaterThanOneMonthAndNotLaterThanThreeMonthsMember": { "auth_ref": [ "r329", "r332", "r338" ], "lang": { "en": { "role": { "documentation": "This member stands for a time band of later than one month and not later than three months." } }, "en-us": { "role": { "label": "Past due not more than three months" } } }, "localname": "LaterThanOneMonthAndNotLaterThanThreeMonthsMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTradeAndOtherReceivablesTradeReceivablesPastDueDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_LaterThanOneYearAndNotLaterThanTwoYearsMember": { "auth_ref": [ "r12", "r273", "r275", "r330", "r338", "r365" ], "lang": { "en": { "role": { "documentation": "This member stands for a time band of later than one year and not later than two years." } }, "en-us": { "role": { "label": "Between one and two years" } } }, "localname": "LaterThanOneYearAndNotLaterThanTwoYearsMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsBorrowingsAreRepayableDetails", "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsYearEndFinancialLiabilitiesByContractualMaturityDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_LaterThanSixMonthsAndNotLaterThanOneYearMember": { "auth_ref": [ "r330", "r334", "r338", "r384", "r389" ], "lang": { "en": { "role": { "documentation": "This member stands for a time band of later than six months and not later than one year." } }, "en-us": { "role": { "label": "Past due more than six months and not more than one year" } } }, "localname": "LaterThanSixMonthsAndNotLaterThanOneYearMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTradeAndOtherReceivablesTradeReceivablesPastDueDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_LaterThanThreeMonthsAndNotLaterThanSixMonthsMember": { "auth_ref": [ "r330", "r333", "r338", "r384", "r388" ], "lang": { "en": { "role": { "documentation": "This member stands for a time band of later than three months and not later than six months." } }, "en-us": { "role": { "label": "Past due more than three months and not more than six months" } } }, "localname": "LaterThanThreeMonthsAndNotLaterThanSixMonthsMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTradeAndOtherReceivablesTradeReceivablesPastDueDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_LaterThanThreeYearsAndNotLaterThanFourYearsMember": { "auth_ref": [ "r12", "r273", "r275", "r330", "r338", "r365" ], "lang": { "en": { "role": { "documentation": "This member stands for a time band of later than three years and not later than four years." } }, "en-us": { "role": { "label": "Between three and four years" } } }, "localname": "LaterThanThreeYearsAndNotLaterThanFourYearsMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsBorrowingsAreRepayableDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_LaterThanTwoYearsAndNotLaterThanFiveYearsMember": { "auth_ref": [ "r12" ], "lang": { "en": { "role": { "documentation": "This member stands for a time band of later than two years and not later than five years." } }, "en-us": { "role": { "label": "Between two and five years" } } }, "localname": "LaterThanTwoYearsAndNotLaterThanFiveYearsMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsYearEndFinancialLiabilitiesByContractualMaturityDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_LaterThanTwoYearsAndNotLaterThanThreeYearsMember": { "auth_ref": [ "r12", "r273", "r275", "r330", "r338", "r365" ], "lang": { "en": { "role": { "documentation": "This member stands for a time band of later than two years and not later than three years." } }, "en-us": { "role": { "label": "Between two and three years" } } }, "localname": "LaterThanTwoYearsAndNotLaterThanThreeYearsMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsBorrowingsAreRepayableDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_LeaseLiabilities": { "auth_ref": [ "r266" ], "crdr": "credit", "lang": { "en": { "role": { "documentation": "The amount of liabilities related to the entity's leases. Lease is a contract, or part of a contract, that conveys the right to use an underlying asset for a period of time in exchange for consideration." } }, "en-us": { "role": { "label": "Lease liabilities", "negatedTerseLabel": "IFRS 16 lease liabilities" } } }, "localname": "LeaseLiabilities", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashFlowStatementAnalysisOfNetDebtDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_LegalProceedingsProvisionMember": { "auth_ref": [ "r172", "r174" ], "lang": { "en": { "role": { "documentation": "This member stands for a provision for legal proceedings. [Refer: Other provisions [member]]" } }, "en-us": { "role": { "label": "Legal and other provisions" } } }, "localname": "LegalProceedingsProvisionMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureProvisionsAndContingenciesChangesInProvisionsDetails", "http://www.smith-nephew.com/role/DisclosureProvisionsAndContingenciesCurrentAndNonCurrentProvisionsDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_Level1OfFairValueHierarchyMember": { "auth_ref": [ "r113", "r242" ], "lang": { "en": { "role": { "documentation": "This member stands for a category of the fair value hierarchy where inputs to the valuation techniques are quoted prices (unadjusted) in active markets for identical assets or liabilities that the entity can access at the measurement date." } }, "en-us": { "role": { "label": "Assets with a quoted market price" } } }, "localname": "Level1OfFairValueHierarchyMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsPlanAssetsDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_Level2And3OfFairValueHierarchyMember": { "auth_ref": [ "r113" ], "lang": { "en": { "role": { "documentation": "This member stands for combined Level 2 and Level 3 categories of the fair value hierarchy. [Refer: Level 2 of fair value hierarchy [member]; Level 3 of fair value hierarchy [member]]" } }, "en-us": { "role": { "label": "Other assets" } } }, "localname": "Level2And3OfFairValueHierarchyMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsPlanAssetsDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_Level2OfFairValueHierarchyMember": { "auth_ref": [ "r242" ], "lang": { "en": { "role": { "documentation": "This member stands for a category of the fair value hierarchy where inputs to the valuation techniques are inputs other than quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly." } }, "en-us": { "role": { "label": "Level 2" } } }, "localname": "Level2OfFairValueHierarchyMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementFairValueDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_Level3OfFairValueHierarchyMember": { "auth_ref": [ "r242" ], "lang": { "en": { "role": { "documentation": "This member stands for a category of the fair value hierarchy where inputs to the valuation techniques are unobservable inputs for the asset or liability. Unobservable inputs are inputs for which market data are not available and that are developed using the best information available about the assumptions that the market participants would use when pricing the asset or liability." } }, "en-us": { "role": { "label": "Level 3" } } }, "localname": "Level3OfFairValueHierarchyMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementFairValueDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementMovementOfFinancialInstrumentsDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_LevelsOfFairValueHierarchyAxis": { "auth_ref": [ "r113", "r242" ], "lang": { "en": { "role": { "documentation": "The axis of a table defines the relationship between the members in the table and the line items or concepts that complete the table." } }, "en-us": { "role": { "label": "Levels of fair value hierarchy [axis]" } } }, "localname": "LevelsOfFairValueHierarchyAxis", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementFairValueDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementMovementOfFinancialInstrumentsDetails", "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsPlanAssetsDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_Liabilities": { "auth_ref": [ "r27", "r241", "r242", "r247", "r344", "r347" ], "calculation": { "http://www.smith-nephew.com/role/StatementGroupBalanceSheet": { "order": 2.0, "parentTag": "ifrs-full_EquityAndLiabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en": { "role": { "documentation": "The amount of a present obligation of the entity to transfer an economic resource as a result of past events. Economic resource is a right that has the potential to produce economic benefits." } }, "en-us": { "role": { "label": "Liabilities", "negatedPeriodEndLabel": "Liabilities at end of period", "negatedPeriodStartLabel": "Liabilities at beginning of period", "negatedTerseLabel": "Financial liabilities", "totalLabel": "Total liabilities" } } }, "localname": "Liabilities", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementFairValueDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementMovementOfFinancialInstrumentsDetails", "http://www.smith-nephew.com/role/StatementGroupBalanceSheet" ], "xbrltype": "monetaryItemType" }, "ifrs-full_LiabilitiesIncurred": { "auth_ref": [ "r282" ], "crdr": "credit", "lang": { "en": { "role": { "documentation": "The fair value, at acquisition date, of liabilities incurred (for example, a liability for contingent consideration) as consideration transferred in a business combination. [Refer: Business combinations [member]]" } }, "en-us": { "role": { "label": "Liabilities incurred", "terseLabel": "Deferred acquisition consideration" } } }, "localname": "LiabilitiesIncurred", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementInterestBearingLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_LiabilitiesMember": { "auth_ref": [ "r248" ], "lang": { "en": { "role": { "documentation": "This member stands for a present obligation of the entity to transfer an economic resource as a result of past events. Economic resource is a right that has the potential to produce economic benefits. It also represents the standard value for the 'Classes of liabilities' axis if no other member is used. [Refer: Liabilities]" } }, "en-us": { "role": { "label": "Liabilities [member]" } } }, "localname": "LiabilitiesMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashFlowStatementAnalysisOfNetDebtDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementMovementOfFinancialInstrumentsDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_LiabilityAssetOfDefinedBenefitPlans": { "auth_ref": [ "r99" ], "crdr": "credit", "lang": { "en": { "role": { "documentation": "The amount of deficit or surplus in a defined benefit plan, adjusted for any effect of limiting a net defined benefit asset to the asset ceiling. [Refer: Defined benefit plans [member]]" } }, "en-us": { "role": { "label": "Net defined benefit liability (asset)", "negatedPeriodEndLabel": "Amount recognised on the balance sheet", "negatedPeriodStartLabel": "Amounts recognised on the balance sheet at beginning of the period" } } }, "localname": "LiabilityAssetOfDefinedBenefitPlans", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsReconciliationOfBenefitObligationsAndPensionAssetsDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_LoansReceived": { "auth_ref": [ "r12" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsBorrowingsAreRepayableDetails": { "order": 3.0, "parentTag": "snn_BorrowingsIncludingLeaseLiabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en": { "role": { "documentation": "The amount of loans received." } }, "en-us": { "role": { "label": "Loans received", "terseLabel": "Bank loans" } } }, "localname": "LoansReceived", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsBorrowingsAreRepayableDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_LossesOnDisposalsOfPropertyPlantAndEquipment": { "auth_ref": [ "r56" ], "crdr": "debit", "lang": { "en": { "role": { "documentation": "The losses on the disposal of property, plant and equipment. [Refer: Property, plant and equipment]" } }, "en-us": { "role": { "label": "Losses on disposals of property, plant and equipment", "terseLabel": "Loss on disposal of property, plant and equipment and intangible assets" } } }, "localname": "LossesOnDisposalsOfPropertyPlantAndEquipment", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureOperatingProfitDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_MajorComponentsOfTaxExpenseIncomeAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "TAXATION" } } }, "localname": "MajorComponentsOfTaxExpenseIncomeAbstract", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "xbrltype": "stringItemType" }, "ifrs-full_MarketsOfCustomersAxis": { "auth_ref": [ "r265" ], "lang": { "en": { "role": { "documentation": "The axis of a table defines the relationship between the members in the table and the line items or concepts that complete the table." } }, "en-us": { "role": { "label": "Markets of customers [axis]" } } }, "localname": "MarketsOfCustomersAxis", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_MarketsOfCustomersMember": { "auth_ref": [ "r265" ], "lang": { "en": { "role": { "documentation": "This member stands for all markets of customers. It also represents the standard value for the 'Markets of customers' axis if no other member is used." } }, "en-us": { "role": { "label": "Markets of customers [member]" } } }, "localname": "MarketsOfCustomersMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_MaturityAxis": { "auth_ref": [ "r30", "r118", "r262", "r273", "r275", "r300", "r321", "r330", "r356", "r357", "r359", "r365" ], "lang": { "en": { "role": { "documentation": "The axis of a table defines the relationship between the members in the table and the line items or concepts that complete the table." } }, "en-us": { "role": { "label": "Maturity [axis]" } } }, "localname": "MaturityAxis", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsBorrowingsAreRepayableDetails", "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsYearEndFinancialLiabilitiesByContractualMaturityDetails", "http://www.smith-nephew.com/role/DisclosureTradeAndOtherPayablesDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_MaximumExposureToCreditRisk": { "auth_ref": [ "r315", "r383" ], "lang": { "en": { "role": { "documentation": "The amount that best represents the maximum exposure to credit risk without taking into account any collateral held or other credit enhancements (for example, netting agreements that do not qualify for offset in accordance with IAS 32). [Refer: Credit risk [member]]" } }, "en-us": { "role": { "label": "Maximum exposure to credit risk", "terseLabel": "Maximum exposure" } } }, "localname": "MaximumExposureToCreditRisk", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementCreditRiskExposuresDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_MeasurementAxis": { "auth_ref": [ "r192", "r196", "r241" ], "lang": { "en": { "role": { "documentation": "The axis of a table defines the relationship between the members in the table and the line items or concepts that complete the table." } }, "en-us": { "role": { "label": "Measurement [axis]" } } }, "localname": "MeasurementAxis", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementFairValueDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_MeasurementPeriodAdjustmentsRecognisedForParticularAssetsLiabilitiesNoncontrollingInterestsOrItemsOfConsideration": { "auth_ref": [ "r291" ], "lang": { "en": { "role": { "documentation": "The amount of measurement period adjustments recognised for particular assets, liabilities, non-controlling interests or items of consideration if the initial accounting for a business combination is incomplete. The measurement period is the period after the acquisition date during which the acquirer may adjust the provisional amounts recognised for a business combination. [Refer: Non-controlling interests; Business combinations [member]]" } }, "en-us": { "role": { "label": "Measurement period adjustments recognised for particular assets, liabilities, non-controlling interests or items of consideration", "terseLabel": "Remeasurement reduction" } } }, "localname": "MeasurementPeriodAdjustmentsRecognisedForParticularAssetsLiabilitiesNoncontrollingInterestsOrItemsOfConsideration", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementFairValueDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_MiscellaneousOtherOperatingIncome": { "auth_ref": [ "r12" ], "crdr": "credit", "lang": { "en": { "role": { "documentation": "The amount of miscellaneous other operating income. [Refer: Other operating income (expense)]" } }, "en-us": { "role": { "label": "Miscellaneous other operating income", "negatedLabel": "Other operating income" } } }, "localname": "MiscellaneousOtherOperatingIncome", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureOperatingProfitDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_NetAssetsLiabilities": { "auth_ref": [ "r12", "r223" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureInvestmentsInAssociatesSummarisedBalanceSheetDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount of assets less the amount of liabilities." } }, "en-us": { "role": { "label": "Assets (liabilities)", "totalLabel": "Net assets" } } }, "localname": "NetAssetsLiabilities", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureInvestmentsInAssociatesSummarisedBalanceSheetDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_NetDebt": { "auth_ref": [ "r12" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsNetDebtDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en": { "role": { "documentation": "The amount of net debt of the entity." } }, "en-us": { "role": { "label": "Net Debt", "negatedPeriodEndLabel": "Balance at end of year", "negatedPeriodStartLabel": "Balance at beginning of year", "totalLabel": "Net debt" } } }, "localname": "NetDebt", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBasisOfPreparationDetails", "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsNetDebtDetails", "http://www.smith-nephew.com/role/DisclosureCashFlowStatementAnalysisOfNetDebtDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_NetDeferredTaxAssets": { "auth_ref": [ "r73" ], "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount of deferred tax assets net of deferred tax liabilities, when the absolute amount of deferred tax assets is greater than the absolute amount of deferred tax liabilities. [Refer: Deferred tax assets; Deferred tax liabilities]" } }, "en-us": { "role": { "label": "Net deferred tax assets", "verboseLabel": "Net asset position" } } }, "localname": "NetDeferredTaxAssets", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationDeferredTaxationDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_NetDeferredTaxAssetsAndLiabilitiesAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Net deferred tax assets and liabilities [abstract]", "terseLabel": "Represented by:" } } }, "localname": "NetDeferredTaxAssetsAndLiabilitiesAbstract", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationDeferredTaxationDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_NetDefinedBenefitLiabilityAssetAxis": { "auth_ref": [ "r99" ], "lang": { "en": { "role": { "documentation": "The axis of a table defines the relationship between the members in the table and the line items or concepts that complete the table." } }, "en-us": { "role": { "label": "Net defined benefit liability (asset) [axis]" } } }, "localname": "NetDefinedBenefitLiabilityAssetAxis", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsReconciliationOfBenefitObligationsAndPensionAssetsDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_NetDefinedBenefitLiabilityAssetMember": { "auth_ref": [ "r99" ], "lang": { "en": { "role": { "documentation": "This member stands for the net defined benefit liability (asset). It also represents the standard value for the 'Net defined benefit liability (asset)' axis if no other member is used. [Refer: Net defined benefit liability (asset)]" } }, "en-us": { "role": { "label": "Net defined benefit liability (asset) [member]" } } }, "localname": "NetDefinedBenefitLiabilityAssetMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsReconciliationOfBenefitObligationsAndPensionAssetsDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_NominalAmountOfHedgingInstrument": { "auth_ref": [ "r300", "r302" ], "lang": { "en": { "role": { "documentation": "The nominal amount of a hedging instrument. [Refer: Hedging instruments [member]]" } }, "en-us": { "role": { "label": "Nominal amount of hedging instrument", "terseLabel": "Nominal amount" } } }, "localname": "NominalAmountOfHedgingInstrument", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementHedgeDetails" ], "xbrltype": "decimalItemType" }, "ifrs-full_NoncontrollingInterests": { "auth_ref": [ "r25", "r224", "r225" ], "crdr": "credit", "lang": { "en": { "role": { "documentation": "The amount of equity in a subsidiary not attributable, directly or indirectly, to a parent. [Refer: Subsidiaries [member]]" } }, "en-us": { "role": { "label": "Non-controlling interests", "negatedLabel": "Non-controlling interest" } } }, "localname": "NoncontrollingInterests", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureInvestmentsInAssociatesSummarisedBalanceSheetDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_NoncurrentAssets": { "auth_ref": [ "r31", "r229", "r232" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureInvestmentsInAssociatesSummarisedBalanceSheetDetails": { "order": 1.0, "parentTag": "ifrs-full_NetAssetsLiabilities", "weight": 1.0 }, "http://www.smith-nephew.com/role/StatementGroupBalanceSheet": { "order": 2.0, "parentTag": "ifrs-full_Assets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount of assets that do not meet the definition of current assets. [Refer: Current assets]" } }, "en-us": { "role": { "label": "Non-current assets", "totalLabel": "Total non current assets" } } }, "localname": "NoncurrentAssets", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureInvestmentsInAssociatesSummarisedBalanceSheetDetails", "http://www.smith-nephew.com/role/StatementGroupBalanceSheet" ], "xbrltype": "monetaryItemType" }, "ifrs-full_NoncurrentAssetsAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Non-current assets [abstract]", "terseLabel": "Non-current assets" } } }, "localname": "NoncurrentAssetsAbstract", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/StatementGroupBalanceSheet" ], "xbrltype": "stringItemType" }, "ifrs-full_NoncurrentFinancialAssetsAvailableforsale": { "auth_ref": [ "r387" ], "calculation": { "http://www.smith-nephew.com/role/StatementGroupBalanceSheet": { "order": 6.0, "parentTag": "ifrs-full_NoncurrentAssets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount of non-current financial assets available-for-sale. [Refer: Financial assets available-for-sale; Non-current financial assets]" } }, "en-us": { "role": { "label": "Non-current financial assets available-for-sale", "periodEndLabel": "Investments at 31 December", "periodStartLabel": "Investments at 1 January", "terseLabel": "Investments" } } }, "localname": "NoncurrentFinancialAssetsAvailableforsale", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureInvestmentsDetails", "http://www.smith-nephew.com/role/StatementGroupBalanceSheet" ], "xbrltype": "monetaryItemType" }, "ifrs-full_NoncurrentLeaseLiabilities": { "auth_ref": [ "r266" ], "crdr": "credit", "lang": { "en": { "role": { "documentation": "The amount of non-current lease liabilities. [Refer: Lease liabilities]" } }, "en-us": { "role": { "label": "Non-current lease liabilities" } } }, "localname": "NoncurrentLeaseLiabilities", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsNetDebtDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_NoncurrentLiabilities": { "auth_ref": [ "r33", "r229", "r234" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureInvestmentsInAssociatesSummarisedBalanceSheetDetails": { "order": 3.0, "parentTag": "ifrs-full_NetAssetsLiabilities", "weight": -1.0 }, "http://www.smith-nephew.com/role/StatementGroupBalanceSheet": { "order": 1.0, "parentTag": "ifrs-full_Liabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en": { "role": { "documentation": "The amount of liabilities that do not meet the definition of current liabilities. [Refer: Current liabilities]" } }, "en-us": { "role": { "label": "Non-current liabilities", "negatedLabel": "Non-current liabilities", "totalLabel": "Total non-current liabilities" } } }, "localname": "NoncurrentLiabilities", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureInvestmentsInAssociatesSummarisedBalanceSheetDetails", "http://www.smith-nephew.com/role/StatementGroupBalanceSheet" ], "xbrltype": "monetaryItemType" }, "ifrs-full_NoncurrentLiabilitiesAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Non-current liabilities [abstract]", "terseLabel": "Non-current liabilities" } } }, "localname": "NoncurrentLiabilitiesAbstract", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/StatementGroupBalanceSheet" ], "xbrltype": "stringItemType" }, "ifrs-full_NoncurrentLiabilitiesRecognisedAsOfAcquisitionDate": { "auth_ref": [ "r285" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails": { "order": 11.0, "parentTag": "ifrs-full_IdentifiableAssetsAcquiredLiabilitiesAssumed", "weight": -1.0 } }, "crdr": "credit", "lang": { "en": { "role": { "documentation": "Expiry date 2022-01-01: The amount recognised as of the acquisition date for non-current liabilities assumed in a business combination. [Refer: Business combinations [member]]\nEffective 2022-01-01: The amount recognised as of the acquisition date for non-current liabilities assumed in a business combination. [Refer: Non-current liabilities; Business combinations [member]]" } }, "en-us": { "role": { "label": "Non-current liabilities recognised as of acquisition date", "negatedTerseLabel": "Non-current liabilities" } } }, "localname": "NoncurrentLiabilitiesRecognisedAsOfAcquisitionDate", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_NoncurrentPayablesAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Trade and other non-current payables [abstract]", "terseLabel": "Other payables due after one year" } } }, "localname": "NoncurrentPayablesAbstract", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTradeAndOtherPayablesDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_NoncurrentProvisions": { "auth_ref": [ "r22" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureProvisionsAndContingenciesCurrentAndNonCurrentProvisionsDetails": { "order": 2.0, "parentTag": "ifrs-full_Provisions", "weight": 1.0 }, "http://www.smith-nephew.com/role/StatementGroupBalanceSheet": { "order": 4.0, "parentTag": "ifrs-full_NoncurrentLiabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en": { "role": { "documentation": "The amount of non-current provisions, including provisions for employee benefits. [Refer: Provisions]" } }, "en-us": { "role": { "label": "Non-current provisions", "terseLabel": "Provisions", "verboseLabel": "Provisions - due after one year" } } }, "localname": "NoncurrentProvisions", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureProvisionsAndContingenciesCurrentAndNonCurrentProvisionsDetails", "http://www.smith-nephew.com/role/StatementGroupBalanceSheet" ], "xbrltype": "monetaryItemType" }, "ifrs-full_NoncurrentRecognisedAssetsDefinedBenefitPlan": { "auth_ref": [ "r27" ], "calculation": { "http://www.smith-nephew.com/role/StatementGroupBalanceSheet": { "order": 7.0, "parentTag": "ifrs-full_NoncurrentAssets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount of non-current net defined benefit asset. [Refer: Net defined benefit asset]" } }, "en-us": { "role": { "label": "Non-current net defined benefit asset", "terseLabel": "Retirement benefit assets", "verboseLabel": "Amount recognised on the balance sheet - asset" } } }, "localname": "NoncurrentRecognisedAssetsDefinedBenefitPlan", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsDetails", "http://www.smith-nephew.com/role/StatementGroupBalanceSheet" ], "xbrltype": "monetaryItemType" }, "ifrs-full_NoncurrentRecognisedLiabilitiesDefinedBenefitPlan": { "auth_ref": [ "r27" ], "calculation": { "http://www.smith-nephew.com/role/StatementGroupBalanceSheet": { "order": 3.0, "parentTag": "ifrs-full_NoncurrentLiabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en": { "role": { "documentation": "The amount of non-current net defined benefit liability. [Refer: Net defined benefit liability]" } }, "en-us": { "role": { "label": "Non-current net defined benefit liability", "negatedLabel": "Amount recognised on the balance sheet - liability", "terseLabel": "Retirement benefit obligations" } } }, "localname": "NoncurrentRecognisedLiabilitiesDefinedBenefitPlan", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsDetails", "http://www.smith-nephew.com/role/StatementGroupBalanceSheet" ], "xbrltype": "monetaryItemType" }, "ifrs-full_NotLaterThanOneYearMember": { "auth_ref": [ "r29", "r273", "r275", "r330", "r338", "r365" ], "lang": { "en": { "role": { "documentation": "This member stands for a time band of not later than one year." } }, "en-us": { "role": { "label": "In one year" } } }, "localname": "NotLaterThanOneYearMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsBorrowingsAreRepayableDetails", "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsYearEndFinancialLiabilitiesByContractualMaturityDetails", "http://www.smith-nephew.com/role/DisclosureTradeAndOtherPayablesDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember": { "auth_ref": [ "r250" ], "lang": { "en": { "role": { "documentation": "This member stands for items not measured at fair value in the statement of financial position but for which fair value is disclosed. [Refer: At fair value [member]]" } }, "en-us": { "role": { "label": "Not measured at fair value" } } }, "localname": "NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementFairValueDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_NotionalAmount": { "auth_ref": [ "r12" ], "lang": { "en": { "role": { "documentation": "The nominal or face amount of a financial instrument, used to calculate payments made on that instrument." } }, "en-us": { "role": { "label": "Notional amount", "verboseLabel": "Amount contracted" } } }, "localname": "NotionalAmount", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsLiquidityRiskExposuresDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementForeignExchangeExposuresDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementNetInvestmentHedgeDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_NumberOfOutstandingShareOptions": { "auth_ref": [ "r276", "r277", "r278" ], "lang": { "en": { "role": { "documentation": "The number of share options outstanding in a share-based payment arrangement." } }, "en-us": { "role": { "label": "Number of share options outstanding in share-based payment arrangement", "terseLabel": "Number of share options outstanding in share-based payment arrangement at end of period" } } }, "localname": "NumberOfOutstandingShareOptions", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureOtherNotesToAccountsStockOptionsOutstandingDetails" ], "xbrltype": "decimalItemType" }, "ifrs-full_NumberOfSharesAuthorised": { "auth_ref": [ "r39" ], "lang": { "en": { "role": { "documentation": "The number of shares authorised." } }, "en-us": { "role": { "label": "Number of shares authorised", "terseLabel": "Number of shares authorised" } } }, "localname": "NumberOfSharesAuthorised", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEquityShareCapitalDetails" ], "xbrltype": "sharesItemType" }, "ifrs-full_NumberOfSharesIssued": { "auth_ref": [ "r8" ], "lang": { "en": { "role": { "documentation": "The number of shares issued by the entity." } }, "en-us": { "role": { "label": "Number of shares issued", "periodEndLabel": "Number of shares - Ending balance", "periodStartLabel": "Number of shares - Beginning balance" } } }, "localname": "NumberOfSharesIssued", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEquityShareCapitalDetails", "http://www.smith-nephew.com/role/DisclosureEquityTreasurySharesDetails" ], "xbrltype": "sharesItemType" }, "ifrs-full_NumberOfSharesIssuedAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Number of shares issued [abstract]", "terseLabel": "Allotted, issued and fully paid", "verboseLabel": "Number of shares" } } }, "localname": "NumberOfSharesIssuedAbstract", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEquityShareCapitalDetails", "http://www.smith-nephew.com/role/DisclosureEquityTreasurySharesDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_OrdinarySharesMember": { "auth_ref": [ "r40", "r150" ], "lang": { "en": { "role": { "documentation": "This member stands for equity instruments that are subordinate to all other classes of equity instruments. It also represents the standard value for the 'Classes of ordinary shares' axis if no other member is used." } }, "en-us": { "role": { "label": "Ordinary Shares" } } }, "localname": "OrdinarySharesMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEquityDividendsDetails", "http://www.smith-nephew.com/role/DisclosureEquityShareCapitalDetails", "http://www.smith-nephew.com/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "domainItemType" }, "ifrs-full_OtherComprehensiveIncome": { "auth_ref": [ "r6", "r44", "r51", "r236" ], "calculation": { "http://www.smith-nephew.com/role/StatementGroupStatementOfComprehensiveIncome": { "order": 2.0, "parentTag": "ifrs-full_ComprehensiveIncome", "weight": 1.0 } }, "crdr": "credit", "lang": { "en": { "role": { "documentation": "The amount of income and expense (including reclassification adjustments) that is not recognised in profit or loss as required or permitted by IFRSs. [Refer: IFRSs [member]]" } }, "en-us": { "role": { "label": "Other comprehensive income", "terseLabel": "Other comprehensive (expense)/income", "totalLabel": "Other comprehensive income for the year, net of taxation" } } }, "localname": "OtherComprehensiveIncome", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/StatementGroupStatementOfChangesInEquity", "http://www.smith-nephew.com/role/StatementGroupStatementOfComprehensiveIncome" ], "xbrltype": "monetaryItemType" }, "ifrs-full_OtherComprehensiveIncomeAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Other comprehensive income [abstract]", "terseLabel": "Other comprehensive income:" } } }, "localname": "OtherComprehensiveIncomeAbstract", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/StatementGroupStatementOfComprehensiveIncome" ], "xbrltype": "stringItemType" }, "ifrs-full_OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans": { "auth_ref": [ "r34", "r52", "r92" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsReconciliationOfBenefitObligationsAndPensionAssetsDetails": { "order": null, "parentTag": null, "root": true, "weight": null }, "http://www.smith-nephew.com/role/StatementGroupStatementOfComprehensiveIncome": { "order": 1.0, "parentTag": "ifrs-full_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax", "weight": 1.0 } }, "crdr": "credit", "lang": { "en": { "role": { "documentation": "The amount of other comprehensive income, before tax, related to gains (losses) on remeasurements of defined benefit plans, which comprise actuarial gains and losses; the return on plan assets, excluding amounts included in net interest on the net defined benefit liability (asset); and any change in the effect of the asset ceiling, excluding amounts included in net interest on the net defined benefit liability (asset). [Refer: Other comprehensive income; Defined benefit plans [member]; Plan assets [member]; Net defined benefit liability (asset)] [Contrast: Decrease (increase) in net defined benefit liability (asset) resulting from gain (loss) on remeasurement in other comprehensive income]" } }, "en-us": { "role": { "label": "Other comprehensive income, before tax, gains (losses) on remeasurements of defined benefit plans", "terseLabel": "Remeasurement of net retirement benefit obligations", "totalLabel": "Re-measurement recognised in OCI" } } }, "localname": "OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsReconciliationOfBenefitObligationsAndPensionAssetsDetails", "http://www.smith-nephew.com/role/StatementGroupStatementOfComprehensiveIncome" ], "xbrltype": "monetaryItemType" }, "ifrs-full_OtherComprehensiveIncomeNetOfTaxChangeInValueOfForwardElementsOfForwardContracts": { "auth_ref": [ "r34", "r51" ], "calculation": { "http://www.smith-nephew.com/role/StatementGroupStatementOfComprehensiveIncome": { "order": 1.0, "parentTag": "ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax", "weight": 1.0 } }, "crdr": "credit", "lang": { "en": { "role": { "documentation": "The amount of other comprehensive income, net of tax, after reclassification adjustments, related to change in value of forward elements of forward contracts. [Refer: Other comprehensive income]" } }, "en-us": { "role": { "label": "Other comprehensive income, net of tax, change in value of forward elements of forward contracts", "terseLabel": "Cash flow hedges - forward foreign exchange contracts Gains/(losses) arising in the year" } } }, "localname": "OtherComprehensiveIncomeNetOfTaxChangeInValueOfForwardElementsOfForwardContracts", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/StatementGroupStatementOfComprehensiveIncome" ], "xbrltype": "monetaryItemType" }, "ifrs-full_OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation": { "auth_ref": [ "r34", "r51" ], "calculation": { "http://www.smith-nephew.com/role/StatementGroupStatementOfComprehensiveIncome": { "order": 3.0, "parentTag": "ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax", "weight": 1.0 } }, "crdr": "credit", "lang": { "en": { "role": { "documentation": "The amount of other comprehensive income, net of tax, after reclassification adjustments, related to exchange differences when financial statements of foreign operations are translated. [Refer: Other comprehensive income]" } }, "en-us": { "role": { "label": "Other comprehensive income, net of tax, exchange differences on translation", "terseLabel": "Exchange differences on translation of foreign operations" } } }, "localname": "OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/StatementGroupStatementOfComprehensiveIncome" ], "xbrltype": "monetaryItemType" }, "ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax": { "auth_ref": [ "r48", "r58" ], "calculation": { "http://www.smith-nephew.com/role/StatementGroupStatementOfComprehensiveIncome": { "order": 2.0, "parentTag": "ifrs-full_OtherComprehensiveIncome", "weight": 1.0 } }, "crdr": "credit", "lang": { "en": { "role": { "documentation": "The amount of other comprehensive income that will be reclassified to profit or loss, net of tax. [Refer: Other comprehensive income]" } }, "en-us": { "role": { "label": "Other comprehensive income that will be reclassified to profit or loss, net of tax", "totalLabel": "Total items that may be reclassified subsequently to income statement" } } }, "localname": "OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/StatementGroupStatementOfComprehensiveIncome" ], "xbrltype": "monetaryItemType" }, "ifrs-full_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax": { "auth_ref": [ "r48", "r58" ], "calculation": { "http://www.smith-nephew.com/role/StatementGroupStatementOfComprehensiveIncome": { "order": 1.0, "parentTag": "ifrs-full_OtherComprehensiveIncome", "weight": 1.0 } }, "crdr": "credit", "lang": { "en": { "role": { "documentation": "The amount of other comprehensive income that will not be reclassified to profit or loss, net of tax. [Refer: Other comprehensive income]" } }, "en-us": { "role": { "label": "Other comprehensive income that will not be reclassified to profit or loss, net of tax", "totalLabel": "Total items that will not be reclassified to income statement" } } }, "localname": "OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/StatementGroupStatementOfComprehensiveIncome" ], "xbrltype": "monetaryItemType" }, "ifrs-full_OtherCurrentReceivables": { "auth_ref": [ "r35" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureTradeAndOtherReceivablesDetails": { "order": 3.0, "parentTag": "ifrs-full_TradeAndOtherCurrentReceivables", "weight": 1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount of current other receivables. [Refer: Other receivables]" } }, "en-us": { "role": { "label": "Other current receivables", "terseLabel": "Other receivables" } } }, "localname": "OtherCurrentReceivables", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTradeAndOtherReceivablesDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_OtherFinanceCost": { "auth_ref": [ "r12" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureInterestAndOtherFinanceCostsOtherFinanceCostsDetails": { "order": null, "parentTag": null, "root": true, "weight": null }, "http://www.smith-nephew.com/role/StatementGroupIncomeStatement": { "order": 4.0, "parentTag": "ifrs-full_ProfitLossBeforeTax", "weight": -1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount of finance costs that the entity does not separately disclose in the same statement or note. [Refer: Finance costs]" } }, "en-us": { "role": { "label": "Other finance cost", "negatedLabel": "Other finance costs", "negatedTotalLabel": "Other finance costs" } } }, "localname": "OtherFinanceCost", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureInterestAndOtherFinanceCostsOtherFinanceCostsDetails", "http://www.smith-nephew.com/role/StatementGroupIncomeStatement" ], "xbrltype": "monetaryItemType" }, "ifrs-full_OtherNoncurrentPayables": { "auth_ref": [ "r27" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureTradeAndOtherPayablesDetails": { "order": null, "parentTag": null, "root": true, "weight": null }, "http://www.smith-nephew.com/role/StatementGroupBalanceSheet": { "order": 5.0, "parentTag": "ifrs-full_NoncurrentLiabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en": { "role": { "documentation": "The amount of non-current payables that the entity does not separately disclose in the same statement or note." } }, "en-us": { "role": { "label": "Other non-current payables", "terseLabel": "Other payables", "totalLabel": "Total other payables due after one year" } } }, "localname": "OtherNoncurrentPayables", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTradeAndOtherPayablesDetails", "http://www.smith-nephew.com/role/StatementGroupBalanceSheet" ], "xbrltype": "monetaryItemType" }, "ifrs-full_OtherNoncurrentReceivables": { "auth_ref": [ "r35" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureTradeAndOtherReceivablesDetails": { "order": 2.0, "parentTag": "ifrs-full_TradeAndOtherReceivables", "weight": 1.0 }, "http://www.smith-nephew.com/role/StatementGroupBalanceSheet": { "order": 5.0, "parentTag": "ifrs-full_NoncurrentAssets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount of non-current other receivables. [Refer: Other receivables]" } }, "en-us": { "role": { "label": "Other non-current receivables", "verboseLabel": "Other non-current assets" } } }, "localname": "OtherNoncurrentReceivables", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTradeAndOtherReceivablesDetails", "http://www.smith-nephew.com/role/StatementGroupBalanceSheet" ], "xbrltype": "monetaryItemType" }, "ifrs-full_OtherOperatingIncomeExpense": { "auth_ref": [ "r49" ], "crdr": "credit", "lang": { "en": { "role": { "documentation": "The amount of operating income (expense) that the entity does not separately disclose in the same statement or note." } }, "en-us": { "role": { "label": "Other operating income (expense)", "terseLabel": "Other operating income" } } }, "localname": "OtherOperatingIncomeExpense", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureOperatingProfitDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_OtherPropertyPlantAndEquipmentMember": { "auth_ref": [ "r79" ], "lang": { "en": { "role": { "documentation": "This member stands for a class of property, plant and equipment representing property, plant and equipment that the entity does not separately disclose in the same statement or note. [Refer: Property, plant and equipment]" } }, "en-us": { "role": { "label": "Other" } } }, "localname": "OtherPropertyPlantAndEquipmentMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosurePropertyPlantAndEquipmentDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_OtherProvisions": { "auth_ref": [ "r37", "r167" ], "crdr": "credit", "lang": { "en": { "role": { "documentation": "The amount of provisions other than provisions for employee benefits. [Refer: Provisions]" } }, "en-us": { "role": { "label": "Other provisions", "verboseLabel": "Provision" } } }, "localname": "OtherProvisions", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBasisOfPreparationDetails", "http://www.smith-nephew.com/role/DisclosureInventoriesDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_OtherProvisionsMember": { "auth_ref": [ "r171" ], "lang": { "en": { "role": { "documentation": "This member stands for provisions other than provisions for employee benefits. It also represents the standard value for the 'Classes of other provisions' axis if no other member is used. [Refer: Provisions]" } }, "en-us": { "role": { "label": "Other provisions [member]" } } }, "localname": "OtherProvisionsMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBasisOfPreparationDetails", "http://www.smith-nephew.com/role/DisclosureEarningsPerOrdinaryShareCalculationOfBasicDilutedAndAdjustedEarningsPerShareDetails", "http://www.smith-nephew.com/role/DisclosureInventoriesDetails", "http://www.smith-nephew.com/role/DisclosureProvisionsAndContingenciesChangesInProvisionsDetails", "http://www.smith-nephew.com/role/DisclosureProvisionsAndContingenciesCurrentAndNonCurrentProvisionsDetails", "http://www.smith-nephew.com/role/DisclosureProvisionsAndContingenciesLegalProceedingsDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_OtherReceivables": { "auth_ref": [ "r35" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails": { "order": 7.0, "parentTag": "ifrs-full_IdentifiableAssetsAcquiredLiabilitiesAssumed", "weight": 1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount receivable by the entity that it does not separately disclose in the same statement or note." } }, "en-us": { "role": { "label": "Other receivables" } } }, "localname": "OtherReceivables", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_OtherReservesMember": { "auth_ref": [ "r9", "r41" ], "lang": { "en": { "role": { "documentation": "This member stands for a component of equity representing reserves within equity, not including retained earnings. It also represents the standard value for the 'Reserves within equity' axis if no other member is used. [Refer: Retained earnings]" } }, "en-us": { "role": { "label": "Other reserves" } } }, "localname": "OtherReservesMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/StatementGroupStatementOfChangesInEquity" ], "xbrltype": "domainItemType" }, "ifrs-full_PastDueStatusAxis": { "auth_ref": [ "r318", "r386" ], "lang": { "en": { "role": { "documentation": "The axis of a table defines the relationship between the members in the table and the line items or concepts that complete the table." } }, "en-us": { "role": { "label": "Past due status [axis]" } } }, "localname": "PastDueStatusAxis", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTradeAndOtherReceivablesTradeReceivablesPastDueDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_PastDueStatusMember": { "auth_ref": [ "r318", "r386" ], "lang": { "en": { "role": { "documentation": "This member stands for all past-due statuses. It also represents the standard value for the 'Past due status' axis if no other member is used." } }, "en-us": { "role": { "label": "Past due status [member]" } } }, "localname": "PastDueStatusMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTradeAndOtherReceivablesTradeReceivablesPastDueDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_PastServiceCostNetDefinedBenefitLiabilityAsset": { "auth_ref": [ "r105" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsReconciliationOfBenefitObligationsAndPensionAssetsDetails": { "order": 2.0, "parentTag": "snn_CostRecognisedInIncomeStatementNetDefinedBenefitLiabilityAsset", "weight": 1.0 } }, "crdr": "credit", "lang": { "en": { "role": { "documentation": "The increase (decrease) in the net defined benefit liability (asset) resulting from past service cost. Past service cost is the change in the present value of the defined benefit obligation for employee service in prior periods, resulting from a plan amendment (the introduction or withdrawal of, or changes to, a defined benefit plan) or a curtailment (a significant reduction by the entity in the number of employees covered by a plan). [Refer: Net defined benefit liability (asset); Defined benefit plans [member]]" } }, "en-us": { "role": { "label": "Past service cost, net defined benefit liability (asset)", "negatedLabel": "Past service credit" } } }, "localname": "PastServiceCostNetDefinedBenefitLiabilityAsset", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsReconciliationOfBenefitObligationsAndPensionAssetsDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_PaymentsInRespectOfSettlementsNetDefinedBenefitLiabilityAsset": { "auth_ref": [ "r108" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsReconciliationOfBenefitObligationsAndPensionAssetsDetails": { "order": 3.0, "parentTag": "snn_CostRecognisedInIncomeStatementNetDefinedBenefitLiabilityAsset", "weight": -1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The decrease (increase) in the net defined benefit liability (asset) resulting from payments from the plan in respect of settlements. [Refer: Decrease (increase) in net defined benefit liability (asset) resulting from gains (losses) arising from settlements; Net defined benefit liability (asset); Defined benefit plans [member]]" } }, "en-us": { "role": { "label": "Payments in respect of settlements, net defined benefit liability (asset)", "terseLabel": "Settlements" } } }, "localname": "PaymentsInRespectOfSettlementsNetDefinedBenefitLiabilityAsset", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsReconciliationOfBenefitObligationsAndPensionAssetsDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities": { "auth_ref": [ "r203" ], "crdr": "credit", "lang": { "en": { "role": { "documentation": "The cash outflow for payment of lease liabilities, classified as financing activities. [Refer: Lease liabilities]" } }, "en-us": { "role": { "label": "Payments of lease liabilities, classified as financing activities", "terseLabel": "Repayment of lease liabilities" } } }, "localname": "PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashFlowStatementCashOutflowsInflowsArisingFromFinancingActivitiesDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_PaymentsToAcquireOrRedeemEntitysShares": { "auth_ref": [ "r200" ], "calculation": { "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement": { "order": 2.0, "parentTag": "ifrs-full_CashFlowsFromUsedInFinancingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en": { "role": { "documentation": "The cash outflow to acquire or redeem entity's shares." } }, "en-us": { "role": { "label": "Payments to acquire or redeem entity's shares", "negatedLabel": "Purchase of own shares", "terseLabel": "Purchase of own shares" } } }, "localname": "PaymentsToAcquireOrRedeemEntitysShares", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashFlowStatementCashOutflowsInflowsArisingFromFinancingActivitiesDetails", "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement" ], "xbrltype": "monetaryItemType" }, "ifrs-full_PercentageOfVotingEquityInterestsAcquired": { "auth_ref": [ "r280" ], "lang": { "en": { "role": { "documentation": "The percentage of voting equity interests acquired in a business combination. [Refer: Business combinations [member]]" } }, "en-us": { "role": { "label": "Percentage of voting equity interests acquired", "terseLabel": "Percentage of share capital acquired" } } }, "localname": "PercentageOfVotingEquityInterestsAcquired", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails", "http://www.smith-nephew.com/role/DisclosurePostBalanceSheetEventsDetails" ], "xbrltype": "percentItemType" }, "ifrs-full_PlanAssetsAtFairValue": { "auth_ref": [ "r123" ], "crdr": "debit", "lang": { "en": { "role": { "documentation": "The fair value of defined benefit plan assets. Plan assets comprise assets held by a long-term employee benefit fund and qualifying insurance policies. [Refer: At fair value [member]]" } }, "en-us": { "role": { "label": "Plan assets, at fair value", "terseLabel": "Market value of assets" } } }, "localname": "PlanAssetsAtFairValue", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsPlanAssetsDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_PlanAssetsMember": { "auth_ref": [ "r97" ], "lang": { "en": { "role": { "documentation": "This member stands for defined benefit plan assets. Plan assets comprise: (a) assets held by a long-term employee benefit fund; and (b) qualifying insurance policies." } }, "en-us": { "role": { "label": "Asset" } } }, "localname": "PlanAssetsMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsReconciliationOfBenefitObligationsAndPensionAssetsDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_PostemploymentBenefitExpenseDefinedBenefitPlans": { "auth_ref": [ "r92", "r121" ], "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount of post-employment benefit expense included in profit or loss relating to defined benefit plans. [Refer: Profit (loss); Defined benefit plans [member]] [Contrast: Increase (decrease) in net defined benefit liability (asset) resulting from expense (income) in profit or loss]" } }, "en-us": { "role": { "label": "Post-employment benefit expense, defined benefit plans", "terseLabel": "Defined benefit plan expenses" } } }, "localname": "PostemploymentBenefitExpenseDefinedBenefitPlans", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsPlanAssetsDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_PostemploymentBenefitExpenseDefinedContributionPlans": { "auth_ref": [ "r122" ], "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount of post-employment benefit expense relating to defined contribution plans. Defined contribution plans are post-employment benefit plans under which an entity pays fixed contributions into a separate entity (a fund) and will have no legal or constructive obligation to pay further contributions if the fund does not hold sufficient assets to pay all employee benefits relating to employee service in the current and prior periods." } }, "en-us": { "role": { "label": "Post-employment benefit expense, defined contribution plans", "terseLabel": "Defined contributions plan expenses" } } }, "localname": "PostemploymentBenefitExpenseDefinedContributionPlans", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsPlanAssetsDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_PresentValueOfDefinedBenefitObligationMember": { "auth_ref": [ "r98" ], "lang": { "en": { "role": { "documentation": "This member stands for the present value of a defined benefit obligation. The present value of a defined benefit obligation is the present value, without deducting any plan assets, of expected future payments required to settle the obligation resulting from employee service in the current and prior periods." } }, "en-us": { "role": { "label": "Obligations" } } }, "localname": "PresentValueOfDefinedBenefitObligationMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsReconciliationOfBenefitObligationsAndPensionAssetsDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_ProceedsFromBorrowingsClassifiedAsFinancingActivities": { "auth_ref": [ "r201" ], "crdr": "debit", "lang": { "en": { "role": { "documentation": "The cash inflow from borrowings obtained. [Refer: Borrowings]" } }, "en-us": { "role": { "label": "Proceeds from borrowings, classified as financing activities", "negatedLabel": "Borrowings of bank loans" } } }, "localname": "ProceedsFromBorrowingsClassifiedAsFinancingActivities", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashFlowStatementCashOutflowsInflowsArisingFromFinancingActivitiesDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_ProceedsFromIssueOfBondsNotesAndDebentures": { "auth_ref": [ "r204" ], "crdr": "debit", "lang": { "en": { "role": { "documentation": "The cash inflow from the issuing of bonds, notes and debentures." } }, "en-us": { "role": { "label": "Proceeds from issue of bonds, notes and debentures", "terseLabel": "Proceeds from corporate bond issue" } } }, "localname": "ProceedsFromIssueOfBondsNotesAndDebentures", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashFlowStatementCashOutflowsInflowsArisingFromFinancingActivitiesDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_ProceedsFromIssueOfOrdinaryShares": { "auth_ref": [ "r204" ], "calculation": { "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement": { "order": 4.0, "parentTag": "ifrs-full_CashFlowsFromUsedInFinancingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The cash inflow from the issuing of ordinary shares. [Refer: Ordinary shares [member]]" } }, "en-us": { "role": { "label": "Proceeds from issue of ordinary shares", "terseLabel": "Proceeds from issue of ordinary share capital" } } }, "localname": "ProceedsFromIssueOfOrdinaryShares", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement" ], "xbrltype": "monetaryItemType" }, "ifrs-full_ProceedsFromNoncurrentBorrowings": { "auth_ref": [ "r204" ], "calculation": { "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement": { "order": 5.0, "parentTag": "ifrs-full_CashFlowsFromUsedInFinancingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The cash inflow from non-current borrowings obtained. [Refer: Borrowings]" } }, "en-us": { "role": { "label": "Proceeds from non-current borrowings", "terseLabel": "Proceeds from borrowings due after one year" } } }, "localname": "ProceedsFromNoncurrentBorrowings", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement" ], "xbrltype": "monetaryItemType" }, "ifrs-full_ProceedsFromSaleOrIssueOfTreasuryShares": { "auth_ref": [ "r204" ], "calculation": { "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement": { "order": 9.0, "parentTag": "ifrs-full_CashFlowsFromUsedInFinancingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The cash inflow from the sale or issuing of treasury shares. [Refer: Sale or issue of treasury shares; Treasury shares]" } }, "en-us": { "role": { "label": "Proceeds from sale or issue of treasury shares", "terseLabel": "Proceeds from own shares" } } }, "localname": "ProceedsFromSaleOrIssueOfTreasuryShares", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement" ], "xbrltype": "monetaryItemType" }, "ifrs-full_ProductsAndServicesAxis": { "auth_ref": [ "r263", "r350" ], "lang": { "en": { "role": { "documentation": "The axis of a table defines the relationship between the members in the table and the line items or concepts that complete the table." } }, "en-us": { "role": { "label": "Products and services [axis]" } } }, "localname": "ProductsAndServicesAxis", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_ProductsAndServicesMember": { "auth_ref": [ "r263", "r350" ], "lang": { "en": { "role": { "documentation": "This member stands for the entity's products and services. It also represents the standard value for the 'Products and services' axis if no other member is used." } }, "en-us": { "role": { "label": "Products and services [member]" } } }, "localname": "ProductsAndServicesMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_ProfitLoss": { "auth_ref": [ "r5", "r43", "r205", "r220", "r222", "r229", "r344", "r345", "r358", "r371" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureInvestmentsInAssociatesSummarisedStatementOfComprehensiveIncomeDetails": { "order": 1.0, "parentTag": "ifrs-full_ComprehensiveIncome", "weight": 1.0 }, "http://www.smith-nephew.com/role/StatementGroupIncomeStatement": { "order": null, "parentTag": null, "root": true, "weight": null }, "http://www.smith-nephew.com/role/StatementGroupStatementOfComprehensiveIncome": { "order": 1.0, "parentTag": "ifrs-full_ComprehensiveIncome", "weight": 1.0 } }, "crdr": "credit", "lang": { "en": { "role": { "documentation": "The total of income less expenses from continuing and discontinued operations, excluding the components of other comprehensive income. [Refer: Other comprehensive income]" } }, "en-us": { "role": { "label": "Profit (loss)", "terseLabel": "Attributable profit for the year", "totalLabel": "Attributable profit for the year" } } }, "localname": "ProfitLoss", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEarningsPerOrdinaryShareCalculationOfBasicDilutedAndAdjustedEarningsPerShareDetails", "http://www.smith-nephew.com/role/DisclosureInvestmentsInAssociatesSummarisedStatementOfComprehensiveIncomeDetails", "http://www.smith-nephew.com/role/StatementGroupIncomeStatement", "http://www.smith-nephew.com/role/StatementGroupStatementOfChangesInEquity", "http://www.smith-nephew.com/role/StatementGroupStatementOfComprehensiveIncome" ], "xbrltype": "monetaryItemType" }, "ifrs-full_ProfitLossAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Profit (loss) [abstract]", "terseLabel": "Summarised statement of comprehensive income" } } }, "localname": "ProfitLossAbstract", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureInvestmentsInAssociatesSummarisedStatementOfComprehensiveIncomeDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_ProfitLossAttributableToOrdinaryEquityHoldersOfParentEntityAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Profit (loss), attributable to ordinary equity holders of parent entity [abstract]", "terseLabel": "Earnings" } } }, "localname": "ProfitLossAttributableToOrdinaryEquityHoldersOfParentEntityAbstract", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEarningsPerOrdinaryShareCalculationOfBasicDilutedAndAdjustedEarningsPerShareDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_ProfitLossBeforeTax": { "auth_ref": [ "r1", "r2", "r297", "r344", "r345" ], "calculation": { "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement": { "order": 1.0, "parentTag": "ifrs-full_CashFlowsFromUsedInOperations", "weight": 1.0 }, "http://www.smith-nephew.com/role/StatementGroupIncomeStatement": { "order": 1.0, "parentTag": "ifrs-full_ProfitLoss", "weight": 1.0 } }, "crdr": "credit", "lang": { "en": { "role": { "documentation": "The profit (loss) before tax expense or income. [Refer: Profit (loss)]" } }, "en-us": { "role": { "label": "Profit (loss) before tax", "terseLabel": "Profit before taxation", "totalLabel": "Profit before taxation" } } }, "localname": "ProfitLossBeforeTax", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement", "http://www.smith-nephew.com/role/StatementGroupIncomeStatement" ], "xbrltype": "monetaryItemType" }, "ifrs-full_ProfitLossFromOperatingActivities": { "auth_ref": [ "r49", "r149" ], "calculation": { "http://www.smith-nephew.com/role/StatementGroupIncomeStatement": { "order": 1.0, "parentTag": "ifrs-full_ProfitLossBeforeTax", "weight": 1.0 } }, "crdr": "credit", "lang": { "en": { "role": { "documentation": "The profit (loss) from operating activities of the entity. [Refer: Profit (loss)]" } }, "en-us": { "role": { "label": "Profit (loss) from operating activities", "totalLabel": "Operating profit" } } }, "localname": "ProfitLossFromOperatingActivities", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationTradingAndOperatingProfitByBusinessSegmentDetails", "http://www.smith-nephew.com/role/DisclosureOperatingProfitDetails", "http://www.smith-nephew.com/role/StatementGroupIncomeStatement" ], "xbrltype": "monetaryItemType" }, "ifrs-full_PropertyAmountContributedToFairValueOfPlanAssets": { "auth_ref": [ "r111" ], "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount real estate contributes to the fair value of defined benefit plan assets. [Refer: Plan assets, at fair value; Defined benefit plans [member]]" } }, "en-us": { "role": { "label": "Real estate, amount contributed to fair value of plan assets", "terseLabel": "Property" } } }, "localname": "PropertyAmountContributedToFairValueOfPlanAssets", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsPlanAssetsDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_PropertyPlantAndEquipment": { "auth_ref": [ "r16", "r87" ], "calculation": { "http://www.smith-nephew.com/role/StatementGroupBalanceSheet": { "order": 8.0, "parentTag": "ifrs-full_NoncurrentAssets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount of tangible assets that: (a) are held for use in the production or supply of goods or services, for rental to others, or for administrative purposes; and (b) are expected to be used during more than one period." } }, "en-us": { "role": { "label": "Property, plant and equipment", "periodEndLabel": "Property, plant and equipment at end of period", "periodStartLabel": "Property, plant and equipment at beginning of period", "terseLabel": "Property, plant and equipment" } } }, "localname": "PropertyPlantAndEquipment", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosurePropertyPlantAndEquipmentDetails", "http://www.smith-nephew.com/role/StatementGroupBalanceSheet" ], "xbrltype": "monetaryItemType" }, "ifrs-full_PropertyPlantAndEquipmentAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "PROPERTY, PLANT AND EQUIPMENT." } } }, "localname": "PropertyPlantAndEquipmentAbstract", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "xbrltype": "stringItemType" }, "ifrs-full_PropertyPlantAndEquipmentByOperatingLeaseStatusAxis": { "auth_ref": [ "r274" ], "lang": { "en": { "role": { "documentation": "The axis of a table defines the relationship between the members in the table and the line items or concepts that complete the table." } }, "en-us": { "role": { "label": "Property, plant and equipment by operating lease status [axis]" } } }, "localname": "PropertyPlantAndEquipmentByOperatingLeaseStatusAxis", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosurePropertyPlantAndEquipmentDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_PropertyPlantAndEquipmentByOperatingLeaseStatusMember": { "auth_ref": [ "r274" ], "lang": { "en": { "role": { "documentation": "This member stands for all property, plant and equipment when disaggregated by the operating lease status by a lessor. It also represents the standard value for the 'Property, plant and equipment by operating lease status' axis if no other member is used. [Refer: Property, plant and equipment]" } }, "en-us": { "role": { "label": "Property, plant and equipment by operating lease status [member]" } } }, "localname": "PropertyPlantAndEquipmentByOperatingLeaseStatusMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosurePropertyPlantAndEquipmentDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_PropertyPlantAndEquipmentMember": { "auth_ref": [ "r88", "r156", "r272" ], "lang": { "en": { "role": { "documentation": "This member stands for property, plant and equipment. It also represents the standard value for the 'Classes of property, plant and equipment' axis if no other member is used. [Refer: Property, plant and equipment]" } }, "en-us": { "role": { "label": "Property, plant and equipment [member]" } } }, "localname": "PropertyPlantAndEquipmentMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureInventoriesDetails", "http://www.smith-nephew.com/role/DisclosurePropertyPlantAndEquipmentDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_PropertyPlantAndEquipmentNotSubjectToOperatingLeasesMember": { "auth_ref": [ "r274" ], "lang": { "en": { "role": { "documentation": "This member stands for property, plant and equipment that is not subject to operating leases. Operating lease is a lease that does not transfer substantially all the risks and rewards incidental to ownership of an underlying asset. [Refer: Property, plant and equipment]" } }, "en-us": { "role": { "label": "Freehold" } } }, "localname": "PropertyPlantAndEquipmentNotSubjectToOperatingLeasesMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosurePropertyPlantAndEquipmentDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_PropertyPlantAndEquipmentRecognisedAsOfAcquisitionDate": { "auth_ref": [ "r285", "r296" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails": { "order": 2.0, "parentTag": "ifrs-full_IdentifiableAssetsAcquiredLiabilitiesAssumed", "weight": 1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount recognised as of the acquisition date for plant, property and equipment acquired in a business combination. [Refer: Property, plant and equipment; Business combinations [member]]" } }, "en-us": { "role": { "label": "Property, plant and equipment recognised as of acquisition date", "terseLabel": "Property, plant and equipment" } } }, "localname": "PropertyPlantAndEquipmentRecognisedAsOfAcquisitionDate", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_ProportionOfOwnershipInterestInAssociate": { "auth_ref": [ "r144", "r146", "r227" ], "lang": { "en": { "role": { "documentation": "The proportion of ownership interest in an associate attributable to the entity. [Refer: Associates [member]]" } }, "en-us": { "role": { "label": "Proportion of ownership interest in associate", "terseLabel": "Percentage of associate held" } } }, "localname": "ProportionOfOwnershipInterestInAssociate", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureInvestmentsInAssociatesAmountsRecognisedInBalanceSheetAndIncomeStatementDetails", "http://www.smith-nephew.com/role/DisclosureInvestmentsInAssociatesSummarisedBalanceSheetDetails", "http://www.smith-nephew.com/role/DisclosureInvestmentsInAssociatesSummarisedStatementOfComprehensiveIncomeDetails", "http://www.smith-nephew.com/role/DisclosurePostBalanceSheetEventsDetails" ], "xbrltype": "percentItemType" }, "ifrs-full_ProvisionUsedOtherProvisions": { "auth_ref": [ "r169" ], "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount used (ie incurred and charged against the provision) for other provisions. [Refer: Other provisions]" } }, "en-us": { "role": { "label": "Provision used, other provisions", "negatedLabel": "Utilised" } } }, "localname": "ProvisionUsedOtherProvisions", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureProvisionsAndContingenciesChangesInProvisionsDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_Provisions": { "auth_ref": [ "r22" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureProvisionsAndContingenciesCurrentAndNonCurrentProvisionsDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en": { "role": { "documentation": "The amount of liabilities of uncertain timing or amount, including provisions for employee benefits." } }, "en-us": { "role": { "label": "Provisions", "periodEndLabel": "Provisions at end of year", "periodStartLabel": "Provisions at beginning of year", "totalLabel": "Provisions at end of year" } } }, "localname": "Provisions", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureProvisionsAndContingenciesChangesInProvisionsDetails", "http://www.smith-nephew.com/role/DisclosureProvisionsAndContingenciesCurrentAndNonCurrentProvisionsDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_PurchaseOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets": { "auth_ref": [ "r199" ], "calculation": { "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement": { "order": 2.0, "parentTag": "ifrs-full_CashFlowsFromUsedInInvestingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en": { "role": { "documentation": "The cash outflow for the purchase of property, plant and equipment, intangible assets other than goodwill, investment property and other non-current assets. [Refer: Intangible assets other than goodwill; Investment property; Other non-current assets; Property, plant and equipment]" } }, "en-us": { "role": { "label": "Purchase of property, plant and equipment, intangible assets other than goodwill, investment property and other non-current assets", "negatedLabel": "Capital expenditure" } } }, "localname": "PurchaseOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement" ], "xbrltype": "monetaryItemType" }, "ifrs-full_PurchaseOfTreasuryShares": { "auth_ref": [ "r8" ], "crdr": "debit", "lang": { "en": { "role": { "documentation": "The decrease in equity resulting from the purchase of treasury shares. [Refer: Treasury shares]" } }, "en-us": { "role": { "label": "Purchase of treasury shares", "negatedLabel": "Purchase of own shares", "verboseLabel": "Shares purchased" } } }, "localname": "PurchaseOfTreasuryShares", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEquitySharesBuyBackDetails", "http://www.smith-nephew.com/role/DisclosureEquityTreasurySharesDetails", "http://www.smith-nephew.com/role/StatementGroupStatementOfChangesInEquity" ], "xbrltype": "monetaryItemType" }, "ifrs-full_PurchasesFairValueMeasurementAssets": { "auth_ref": [ "r245" ], "crdr": "debit", "lang": { "en": { "role": { "documentation": "The increase in the fair value measurement of assets resulting from purchases of those assets. [Refer: At fair value [member]]" } }, "en-us": { "role": { "label": "Purchases, fair value measurement, assets", "terseLabel": "Additions" } } }, "localname": "PurchasesFairValueMeasurementAssets", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementMovementOfFinancialInstrumentsDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_RangeAxis": { "auth_ref": [ "r251", "r253", "r254", "r278", "r324", "r359" ], "lang": { "en": { "role": { "documentation": "The axis of a table defines the relationship between the members in the table and the line items or concepts that complete the table." } }, "en-us": { "role": { "label": "Range [axis]" } } }, "localname": "RangeAxis", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementInterestBearingLiabilitiesDetails", "http://www.smith-nephew.com/role/DisclosureGoodwillDetails", "http://www.smith-nephew.com/role/DisclosureIntangibleAssetsDetails", "http://www.smith-nephew.com/role/DisclosureInventoriesDetails", "http://www.smith-nephew.com/role/DisclosureOtherNotesToAccountsStockOptionsOutstandingDetails", "http://www.smith-nephew.com/role/DisclosurePropertyPlantAndEquipmentDetails", "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsDetails", "http://www.smith-nephew.com/role/DisclosureTaxationDeferredTaxationDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_RangesMember": { "auth_ref": [ "r251", "r253", "r254", "r278", "r324", "r359" ], "lang": { "en": { "role": { "documentation": "This member stands for aggregate ranges. It also represents the standard value for the 'Range' axis if no other member is used." } }, "en-us": { "role": { "label": "Ranges [member]" } } }, "localname": "RangesMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementInterestBearingLiabilitiesDetails", "http://www.smith-nephew.com/role/DisclosureGoodwillDetails", "http://www.smith-nephew.com/role/DisclosureIntangibleAssetsDetails", "http://www.smith-nephew.com/role/DisclosureInventoriesDetails", "http://www.smith-nephew.com/role/DisclosureOtherNotesToAccountsStockOptionsOutstandingDetails", "http://www.smith-nephew.com/role/DisclosurePropertyPlantAndEquipmentDetails", "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsDetails", "http://www.smith-nephew.com/role/DisclosureTaxationDeferredTaxationDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_ReceivablesFromTaxesOtherThanIncomeTax": { "auth_ref": [ "r35" ], "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount of receivables from taxes other than income tax. Income taxes include all domestic and foreign taxes that are based on taxable profits. Income taxes also include taxes, such as withholding taxes, that are payable by a subsidiary, associate or joint arrangement on distributions to the reporting entity." } }, "en-us": { "role": { "label": "Receivables from taxes other than income tax", "terseLabel": "Tax receivables relating to payments" } } }, "localname": "ReceivablesFromTaxesOtherThanIncomeTax", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationFactorsAffectingFutureTaxChargesDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_ReclassificationAdjustmentsOnCashFlowHedgesForWhichHedgedItemAffectedProfitOrLossNetOfTax": { "auth_ref": [ "r305", "r307" ], "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount of reclassification adjustments on cash flow hedges for which the hedged item affected profit or loss, net of tax. [Refer: Reclassification adjustments on cash flow hedges, net of tax]" } }, "en-us": { "role": { "label": "Reclassification adjustments on cash flow hedges for which hedged item affected profit or loss, net of tax", "terseLabel": "Amounts reclassified from hedging reserve to profit or loss" } } }, "localname": "ReclassificationAdjustmentsOnCashFlowHedgesForWhichHedgedItemAffectedProfitOrLossNetOfTax", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementHedgeDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_ReconciliationOfAverageEffectiveTaxRateAndApplicableTaxRateAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Reconciliation of average effective tax rate and applicable tax rate [abstract]", "terseLabel": "Reconciliation of expected tax charge" } } }, "localname": "ReconciliationOfAverageEffectiveTaxRateAndApplicableTaxRateAbstract", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationFactorsAffectingFutureTaxChargesDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_ReconciliationOfChangesInDeferredTaxLiabilityAssetAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Reconciliation of changes in deferred tax liability (asset) [abstract]", "terseLabel": "Movements in the main components of deferred tax assets and liabilities" } } }, "localname": "ReconciliationOfChangesInDeferredTaxLiabilityAssetAbstract", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationDeferredTaxationDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_ReconciliationOfChangesInFairValueMeasurementAssetsAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Reconciliation of changes in fair value measurement, assets [abstract]", "terseLabel": "Fair value of assets" } } }, "localname": "ReconciliationOfChangesInFairValueMeasurementAssetsAbstract", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementMovementOfFinancialInstrumentsDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_ReconciliationOfChangesInFairValueMeasurementLiabilitiesAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Reconciliation of changes in fair value measurement, liabilities [abstract]", "terseLabel": "Fair value of liabilities" } } }, "localname": "ReconciliationOfChangesInFairValueMeasurementLiabilitiesAbstract", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementMovementOfFinancialInstrumentsDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_ReconciliationOfChangesInOtherProvisionsAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Reconciliation of changes in other provisions [abstract]", "terseLabel": "Changes in Provisions" } } }, "localname": "ReconciliationOfChangesInOtherProvisionsAbstract", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureProvisionsAndContingenciesChangesInProvisionsDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_ReconciliationOfChangesInPropertyPlantAndEquipmentAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Reconciliation of changes in property, plant and equipment [abstract]", "terseLabel": "Reconciliation of changes in property, plant and equipment" } } }, "localname": "ReconciliationOfChangesInPropertyPlantAndEquipmentAbstract", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosurePropertyPlantAndEquipmentDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_RemainingAmortisationPeriodOfIntangibleAssetsMaterialToEntity2019": { "auth_ref": [ "r187" ], "lang": { "en": { "role": { "documentation": "The remaining amortisation period of individual intangible assets that are material to the entity\u2019s financial statements. [Refer: Depreciation and amortisation expense]" } }, "en-us": { "role": { "label": "Remaining amortisation period of intangible assets material to entity", "terseLabel": "Remaining amortisation period" } } }, "localname": "RemainingAmortisationPeriodOfIntangibleAssetsMaterialToEntity2019", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureIntangibleAssetsDetails" ], "xbrltype": "durationItemType" }, "ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities": { "auth_ref": [ "r202" ], "crdr": "credit", "lang": { "en": { "role": { "documentation": "The cash outflow to settle borrowings, classified as financing activities. [Refer: Borrowings]" } }, "en-us": { "role": { "label": "Repayments of borrowings, classified as financing activities", "terseLabel": "Repayment of debt" } } }, "localname": "RepaymentsOfBorrowingsClassifiedAsFinancingActivities", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsLiquidityRiskExposuresDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_RepaymentsOfCurrentBorrowings": { "auth_ref": [ "r204" ], "calculation": { "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement": { "order": 6.0, "parentTag": "ifrs-full_CashFlowsFromUsedInFinancingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en": { "role": { "documentation": "The cash outflow for repayments of current borrowings. [Refer: Current borrowings]" } }, "en-us": { "role": { "label": "Repayments of current borrowings", "negatedLabel": "Settlement of borrowings due within one year" } } }, "localname": "RepaymentsOfCurrentBorrowings", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement" ], "xbrltype": "monetaryItemType" }, "ifrs-full_RepaymentsOfNoncurrentBorrowings": { "auth_ref": [ "r204" ], "calculation": { "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement": { "order": 7.0, "parentTag": "ifrs-full_CashFlowsFromUsedInFinancingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en": { "role": { "documentation": "The cash outflow for repayments of non-current borrowings. [Refer: Borrowings]" } }, "en-us": { "role": { "label": "Repayments of non-current borrowings", "negatedLabel": "Settlement of borrowings due after one year" } } }, "localname": "RepaymentsOfNoncurrentBorrowings", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement" ], "xbrltype": "monetaryItemType" }, "ifrs-full_ReportableSegmentsMember": { "auth_ref": [ "r94", "r258", "r344", "r367" ], "lang": { "en": { "role": { "documentation": "This member stands for operating segments for which IFRS 8 requires information to be disclosed. The entity shall report separately information about an operating segment that meets any of the following quantitative thresholds: (a) reported revenue, including both sales to external customers and intersegment sales or transfers, is 10 per cent or more of the combined revenue, internal and external, of all operating segments; (b) the absolute amount of its reported profit or loss is 10 per cent or more of the greater, in absolute amount, of (i) the combined reported profit of all operating segments that did not report a loss and (ii) the combined reported loss of all operating segments that reported a loss; or (c) assets are 10 per cent or more of the combined assets of all operating segments. Additionally operating segments that do not meet any of the quantitative thresholds may be considered reportable, and separately disclosed, if management believes that information about the segment would be useful to users of the financial statements. [Refer: Operating segments [member]]" } }, "en-us": { "role": { "label": "Reportable segments" } } }, "localname": "ReportableSegmentsMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationTradingAndOperatingProfitByBusinessSegmentDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_ResearchAndDevelopmentExpense": { "auth_ref": [ "r188" ], "calculation": { "http://www.smith-nephew.com/role/StatementGroupIncomeStatement": { "order": 3.0, "parentTag": "ifrs-full_ProfitLossFromOperatingActivities", "weight": -1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount of expenditure directly attributable to research or development activities, recognised in profit or loss." } }, "en-us": { "role": { "label": "Research and development expense", "negatedLabel": "Research and development expenses" } } }, "localname": "ResearchAndDevelopmentExpense", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureOperatingProfitDetails", "http://www.smith-nephew.com/role/StatementGroupIncomeStatement" ], "xbrltype": "monetaryItemType" }, "ifrs-full_ReserveOfExchangeDifferencesOnTranslation": { "auth_ref": [ "r131" ], "crdr": "credit", "lang": { "en": { "role": { "documentation": "A component of equity representing exchange differences on translation of financial statements recognised in other comprehensive income and accumulated in equity. [Refer: Other comprehensive income]" } }, "en-us": { "role": { "label": "Reserve of exchange differences on translation", "terseLabel": "Cumulative translation loss within other reserves" } } }, "localname": "ReserveOfExchangeDifferencesOnTranslation", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/StatementGroupStatementOfChangesInEquityParenthetical" ], "xbrltype": "monetaryItemType" }, "ifrs-full_RestructuringProvisionMember": { "auth_ref": [ "r166" ], "lang": { "en": { "role": { "documentation": "This member stands for a provision for restructuring, such as the sale or termination of a line of business; closure of business locations in a country or region or relocation of activities from one country or region to another; changes in management structure; and fundamental reorganisations that have a material effect on the nature and focus of the entity's operations. [Refer: Other provisions [member]]" } }, "en-us": { "role": { "label": "Rationalisation provisions" } } }, "localname": "RestructuringProvisionMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureProvisionsAndContingenciesChangesInProvisionsDetails", "http://www.smith-nephew.com/role/DisclosureProvisionsAndContingenciesCurrentAndNonCurrentProvisionsDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_RetainedEarnings": { "auth_ref": [ "r38", "r58" ], "calculation": { "http://www.smith-nephew.com/role/StatementGroupBalanceSheet": { "order": 4.0, "parentTag": "ifrs-full_EquityAttributableToOwnersOfParent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en": { "role": { "documentation": "A component of equity representing the entity's cumulative undistributed earnings or deficit." } }, "en-us": { "role": { "label": "Retained earnings.", "terseLabel": "Retained earnings" } } }, "localname": "RetainedEarnings", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/StatementGroupBalanceSheet" ], "xbrltype": "monetaryItemType" }, "ifrs-full_RetainedEarningsMember": { "auth_ref": [ "r9", "r11" ], "lang": { "en": { "role": { "documentation": "This member stands for a component of equity representing an entity's cumulative undistributed earnings or deficit." } }, "en-us": { "role": { "label": "Retained earnings" } } }, "localname": "RetainedEarningsMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/StatementGroupStatementOfChangesInEquity" ], "xbrltype": "domainItemType" }, "ifrs-full_ReturnOnPlanAssetsNetDefinedBenefitLiabilityAsset": { "auth_ref": [ "r102" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsReconciliationOfBenefitObligationsAndPensionAssetsDetails": { "order": 4.0, "parentTag": "ifrs-full_OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans", "weight": -1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The decrease (increase) in the net defined benefit liability (asset) resulting from the return on plan assets, excluding amounts included in interest income or expense. The return on plan assets is interest, dividends and other revenue derived from the plan assets, together with realised and unrealised gains or losses on the plan assets, less any costs of managing plan assets and less any tax payable by the plan itself, other than tax included in the actuarial assumptions used to measure the present value of the defined benefit obligation. [Refer: Plan assets [member]; Net defined benefit liability (asset); Actuarial assumptions [member]; Increase (decrease) in net defined benefit liability (asset) resulting from interest expense (income)]" } }, "en-us": { "role": { "label": "Return on plan assets, net defined benefit liability (asset)", "negatedLabel": "Return on plan assets greater than discount rate" } } }, "localname": "ReturnOnPlanAssetsNetDefinedBenefitLiabilityAsset", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsReconciliationOfBenefitObligationsAndPensionAssetsDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_RevenueFromContractsWithCustomers": { "auth_ref": [ "r256", "r257" ], "calculation": { "http://www.smith-nephew.com/role/StatementGroupIncomeStatement": { "order": 1.0, "parentTag": "ifrs-full_GrossProfit", "weight": 1.0 } }, "crdr": "credit", "lang": { "en": { "role": { "documentation": "The amount of revenue from contracts with customers. A customer is a party that has contracted with an entity to obtain goods or services that are an output of the entity\u2019s ordinary activities in exchange for consideration." } }, "en-us": { "role": { "label": "Revenue", "terseLabel": "Revenue" } } }, "localname": "RevenueFromContractsWithCustomers", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationDetails", "http://www.smith-nephew.com/role/DisclosureInvestmentsInAssociatesSummarisedStatementOfComprehensiveIncomeDetails", "http://www.smith-nephew.com/role/DisclosureOperatingProfitDetails", "http://www.smith-nephew.com/role/DisclosureTaxationFactorsAffectingFutureTaxChargesDetails", "http://www.smith-nephew.com/role/StatementGroupIncomeStatement" ], "xbrltype": "monetaryItemType" }, "ifrs-full_RevenueOfAcquiree": { "auth_ref": [ "r288" ], "crdr": "credit", "lang": { "en": { "role": { "documentation": "The amount of revenue of the acquiree since the acquisition date included in the consolidated statement of comprehensive income. [Refer: Revenue]" } }, "en-us": { "role": { "label": "Revenue of acquiree since acquisition date", "terseLabel": "Extremity Orthopaedics Revenue" } } }, "localname": "RevenueOfAcquiree", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_RevenueOfCombinedEntity": { "auth_ref": [ "r289" ], "crdr": "credit", "lang": { "en": { "role": { "documentation": "The revenue of the combined entity as though the acquisition date for all business combinations that occurred during the year had been as of the beginning of the annual reporting period. [Refer: Business combinations [member]; Revenue]" } }, "en-us": { "role": { "label": "Revenue of combined entity as if combination occurred at beginning of period" } } }, "localname": "RevenueOfCombinedEntity", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_RevenueThatWasIncludedInContractLiabilityBalanceAtBeginningOfPeriod": { "auth_ref": [ "r260" ], "crdr": "credit", "lang": { "en": { "role": { "documentation": "The amount of revenue that was included in the contract liability balance at the beginning of the period. [Refer: Contract liabilities; Revenue from contracts with customers]" } }, "en-us": { "role": { "label": "Revenue that was included in contract liability balance at beginning of period", "terseLabel": "Revenue recognised, rebates" } } }, "localname": "RevenueThatWasIncludedInContractLiabilityBalanceAtBeginningOfPeriod", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_RightofuseAssets": { "auth_ref": [ "r271" ], "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount of assets that represent a lessee's right to use an underlying asset for the lease term. Underlying asset is an asset that is the subject of a lease, for which the right to use that asset has been provided by a lessor to a lessee." } }, "en-us": { "role": { "label": "Right-of-use assets", "terseLabel": "Right of use assets" } } }, "localname": "RightofuseAssets", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosurePropertyPlantAndEquipmentDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_SalesAndMarketingExpense": { "auth_ref": [ "r49" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureOperatingProfitDetails": { "order": 1.0, "parentTag": "ifrs-full_SellingGeneralAndAdministrativeExpense", "weight": 1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount of expense relating to the marketing and selling of goods or services." } }, "en-us": { "role": { "label": "Sales and marketing expense", "negatedLabel": "Marketing, selling and distribution expenses" } } }, "localname": "SalesAndMarketingExpense", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureOperatingProfitDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_SegmentsAxis": { "auth_ref": [ "r94", "r158", "r258", "r344", "r367" ], "lang": { "en": { "role": { "documentation": "The axis of a table defines the relationship between the members in the table and the line items or concepts that complete the table." } }, "en-us": { "role": { "label": "Segments [axis]" } } }, "localname": "SegmentsAxis", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBasisOfPreparationDetails", "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationDetails", "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationTradingAndOperatingProfitByBusinessSegmentDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_SegmentsMember": { "auth_ref": [ "r94", "r158", "r258", "r349", "r367" ], "lang": { "en": { "role": { "documentation": "This member stands for all segments of an entity. It also represents the standard value for the 'Segments' axis if no other member is used." } }, "en-us": { "role": { "label": "Segments [member]" } } }, "localname": "SegmentsMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBasisOfPreparationDetails", "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationDetails", "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationTradingAndOperatingProfitByBusinessSegmentDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_SellingGeneralAndAdministrativeExpense": { "auth_ref": [ "r49" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureOperatingProfitDetails": { "order": null, "parentTag": null, "root": true, "weight": null }, "http://www.smith-nephew.com/role/StatementGroupIncomeStatement": { "order": 2.0, "parentTag": "ifrs-full_ProfitLossFromOperatingActivities", "weight": -1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount of expense relating to selling, general and administrative activities of the entity." } }, "en-us": { "role": { "label": "Selling, general and administrative expense", "negatedLabel": "Selling, general and administrative expenses", "negatedTotalLabel": "Selling, general and administrative expenses" } } }, "localname": "SellingGeneralAndAdministrativeExpense", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureOperatingProfitDetails", "http://www.smith-nephew.com/role/StatementGroupIncomeStatement" ], "xbrltype": "monetaryItemType" }, "ifrs-full_ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod": { "auth_ref": [ "r46", "r342", "r348", "r373" ], "calculation": { "http://www.smith-nephew.com/role/StatementGroupIncomeStatement": { "order": 5.0, "parentTag": "ifrs-full_ProfitLossBeforeTax", "weight": 1.0 } }, "crdr": "credit", "lang": { "en": { "role": { "documentation": "The entity's share of the profit (loss) of associates and joint ventures accounted for using the equity method. [Refer: Associates [member]; Investments accounted for using equity method; Joint ventures [member]; Profit (loss)]" } }, "en-us": { "role": { "label": "Share of profit (loss) of associates and joint ventures accounted for using equity method", "terseLabel": "Share of results of associates", "verboseLabel": "Income statement profit" } } }, "localname": "ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureInvestmentsInAssociatesAmountsRecognisedInBalanceSheetAndIncomeStatementDetails", "http://www.smith-nephew.com/role/DisclosureInvestmentsInAssociatesSummarisedStatementOfComprehensiveIncomeDetails", "http://www.smith-nephew.com/role/StatementGroupIncomeStatement" ], "xbrltype": "monetaryItemType" }, "ifrs-full_SharePremium": { "auth_ref": [ "r38" ], "calculation": { "http://www.smith-nephew.com/role/StatementGroupBalanceSheet": { "order": 5.0, "parentTag": "ifrs-full_EquityAttributableToOwnersOfParent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en": { "role": { "documentation": "The amount received or receivable from the issuance of the entity's shares in excess of nominal value." } }, "en-us": { "role": { "label": "Share premium.", "terseLabel": "Share premium" } } }, "localname": "SharePremium", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/StatementGroupBalanceSheet" ], "xbrltype": "monetaryItemType" }, "ifrs-full_SharePremiumMember": { "auth_ref": [ "r9" ], "lang": { "en": { "role": { "documentation": "This member stands for the amount received or receivable from issuance of the entity's shares in excess of nominal value." } }, "en-us": { "role": { "label": "Share premium" } } }, "localname": "SharePremiumMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEquityEquityComponentsDetails", "http://www.smith-nephew.com/role/StatementGroupStatementOfChangesInEquity" ], "xbrltype": "domainItemType" }, "ifrs-full_ShorttermBorrowings": { "auth_ref": [ "r27" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsNetDebtDetails": { "order": 3.0, "parentTag": "ifrs-full_Borrowings", "weight": 1.0 } }, "crdr": "credit", "lang": { "en": { "role": { "documentation": "The amount of current borrowings. [Refer: Borrowings]" } }, "en-us": { "role": { "label": "Current borrowings", "verboseLabel": "Bank overdrafts and loans due within one year" } } }, "localname": "ShorttermBorrowings", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsNetDebtDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_SignificantInvestmentsInAssociatesAxis": { "auth_ref": [ "r145", "r147", "r240", "r374", "r379" ], "lang": { "en": { "role": { "documentation": "The axis of a table defines the relationship between the members in the table and the line items or concepts that complete the table." } }, "en-us": { "role": { "label": "Associates [axis]" } } }, "localname": "SignificantInvestmentsInAssociatesAxis", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEarningsPerOrdinaryShareCalculationOfBasicDilutedAndAdjustedEarningsPerShareDetails", "http://www.smith-nephew.com/role/DisclosureInvestmentsInAssociatesAmountsRecognisedInBalanceSheetAndIncomeStatementDetails", "http://www.smith-nephew.com/role/DisclosureInvestmentsInAssociatesSummarisedBalanceSheetDetails", "http://www.smith-nephew.com/role/DisclosureInvestmentsInAssociatesSummarisedStatementOfComprehensiveIncomeDetails", "http://www.smith-nephew.com/role/DisclosurePostBalanceSheetEventsDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_SocialSecurityContributions": { "auth_ref": [ "r124" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureOperatingProfitInformationAboutNatureAndCostOfServicesDetails": { "order": 2.0, "parentTag": "ifrs-full_EmployeeBenefitsExpense", "weight": 1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "A class of employee benefits expense that represents social security contributions. [Refer: Employee benefits expense]" } }, "en-us": { "role": { "label": "Social security contributions", "terseLabel": "Social security costs" } } }, "localname": "SocialSecurityContributions", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureOperatingProfitInformationAboutNatureAndCostOfServicesDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_StatementOfCashFlowsAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "GROUP CASH FLOW STATEMENT" } } }, "localname": "StatementOfCashFlowsAbstract", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "xbrltype": "stringItemType" }, "ifrs-full_StatementOfChangesInEquityAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "GROUP STATEMENT OF CHANGES IN EQUITY" } } }, "localname": "StatementOfChangesInEquityAbstract", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "xbrltype": "stringItemType" }, "ifrs-full_StatementOfChangesInEquityLineItems": { "auth_ref": [], "lang": { "en": { "role": { "documentation": "Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table." } }, "en-us": { "role": { "label": "Statement of changes in equity [line items]", "terseLabel": "GROUP STATEMENT OF CHANGES IN EQUITY", "verboseLabel": "Equity" } } }, "localname": "StatementOfChangesInEquityLineItems", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEquityEquityComponentsDetails", "http://www.smith-nephew.com/role/DisclosureEquitySharesBuyBackDetails", "http://www.smith-nephew.com/role/DisclosureEquityTreasurySharesDetails", "http://www.smith-nephew.com/role/StatementGroupStatementOfChangesInEquity" ], "xbrltype": "stringItemType" }, "ifrs-full_StatementOfChangesInEquityTable": { "auth_ref": [ "r9" ], "lang": { "en": { "role": { "documentation": "Schedule disclosing information related to changes in equity." } }, "en-us": { "role": { "label": "Statement of changes in equity [table]" } } }, "localname": "StatementOfChangesInEquityTable", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEquityEquityComponentsDetails", "http://www.smith-nephew.com/role/DisclosureEquitySharesBuyBackDetails", "http://www.smith-nephew.com/role/DisclosureEquityTreasurySharesDetails", "http://www.smith-nephew.com/role/StatementGroupStatementOfChangesInEquity" ], "xbrltype": "stringItemType" }, "ifrs-full_StatementOfComprehensiveIncomeAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "GROUP STATEMENT OF COMPREHENSIVE INCOME" } } }, "localname": "StatementOfComprehensiveIncomeAbstract", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "xbrltype": "stringItemType" }, "ifrs-full_StatementOfFinancialPositionAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Statement of financial position [abstract]", "terseLabel": "Summarised balance sheet" } } }, "localname": "StatementOfFinancialPositionAbstract", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureInvestmentsInAssociatesSummarisedBalanceSheetDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_TaxBenefitArisingFromPreviouslyUnrecognisedTaxLossTaxCreditOrTemporaryDifferenceOfPriorPeriodUsedToReduceCurrentTaxExpense": { "auth_ref": [ "r67" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureTaxationFactorsAffectingFutureTaxChargesDetails": { "order": 8.0, "parentTag": "ifrs-full_IncomeTaxExpenseContinuingOperations", "weight": -1.0 } }, "crdr": "credit", "lang": { "en": { "role": { "documentation": "The amount of benefit arising from a previously unrecognised tax loss, tax credit or temporary difference of a prior period that is used to reduce current tax expense. [Refer: Temporary differences [member]; Unused tax losses [member]; Unused tax credits [member]]" } }, "en-us": { "role": { "label": "Tax benefit arising from previously unrecognised tax loss, tax credit or temporary difference of prior period used to reduce current tax expense", "negatedLabel": "Recognition of previously unrecognised tax losses" } } }, "localname": "TaxBenefitArisingFromPreviouslyUnrecognisedTaxLossTaxCreditOrTemporaryDifferenceOfPriorPeriodUsedToReduceCurrentTaxExpense", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationFactorsAffectingFutureTaxChargesDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_TaxEffectFromChangeInTaxRate": { "auth_ref": [ "r71" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureTaxationFactorsAffectingFutureTaxChargesDetails": { "order": 6.0, "parentTag": "ifrs-full_IncomeTaxExpenseContinuingOperations", "weight": 1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount that represents the difference between the tax expense (income) and the product of the accounting profit multiplied by the applicable tax rate(s) that relates to changes in the tax rate. [Refer: Accounting profit]" } }, "en-us": { "role": { "label": "Tax effect from change in tax rate", "negatedLabel": "Change in tax rates" } } }, "localname": "TaxEffectFromChangeInTaxRate", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationFactorsAffectingFutureTaxChargesDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_TaxEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss": { "auth_ref": [ "r71" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureTaxationFactorsAffectingFutureTaxChargesDetails": { "order": 9.0, "parentTag": "ifrs-full_IncomeTaxExpenseContinuingOperations", "weight": 1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount that represents the difference between the tax expense (income) and the product of the accounting profit multiplied by the applicable tax rate(s) that relates to expenses not deductible in determining taxable profit (tax loss). [Refer: Accounting profit]" } }, "en-us": { "role": { "label": "Tax effect of expense not deductible in determining taxable profit (tax loss)", "terseLabel": "Expenses not deductible for tax purposes" } } }, "localname": "TaxEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationFactorsAffectingFutureTaxChargesDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_TaxEffectOfForeignTaxRates": { "auth_ref": [ "r71" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureTaxationFactorsAffectingFutureTaxChargesDetails": { "order": 2.0, "parentTag": "ifrs-full_IncomeTaxExpenseContinuingOperations", "weight": 1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount that represents the difference between the tax expense (income) and the product of the accounting profit multiplied by the applicable tax rate(s) that relates to foreign tax rates. [Refer: Accounting profit]" } }, "en-us": { "role": { "label": "Tax effect of foreign tax rates", "verboseLabel": "Differences in overseas taxation rates" } } }, "localname": "TaxEffectOfForeignTaxRates", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationFactorsAffectingFutureTaxChargesDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_TaxEffectOfTaxLosses": { "auth_ref": [ "r71" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureTaxationFactorsAffectingFutureTaxChargesDetails": { "order": 5.0, "parentTag": "ifrs-full_IncomeTaxExpenseContinuingOperations", "weight": 1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount that represents the difference between the tax expense (income) and the product of the accounting profit multiplied by the applicable tax rate(s) that relates to tax losses. [Refer: Accounting profit]" } }, "en-us": { "role": { "label": "Tax effect of tax losses", "terseLabel": "Tax losses not recognised" } } }, "localname": "TaxEffectOfTaxLosses", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationFactorsAffectingFutureTaxChargesDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_TaxExpenseIncomeAtApplicableTaxRate": { "auth_ref": [ "r71" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureTaxationFactorsAffectingFutureTaxChargesDetails": { "order": 1.0, "parentTag": "ifrs-full_IncomeTaxExpenseContinuingOperations", "weight": 1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The product of the accounting profit multiplied by the applicable tax rate(s). [Refer: Accounting profit; Applicable tax rate]" } }, "en-us": { "role": { "label": "Tax expense (income) at applicable tax rate", "verboseLabel": "Expected taxation at UK statutory rate" } } }, "localname": "TaxExpenseIncomeAtApplicableTaxRate", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationFactorsAffectingFutureTaxChargesDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_TechnologybasedIntangibleAssetsMember": { "auth_ref": [ "r186" ], "lang": { "en": { "role": { "documentation": "This member stands for a class of intangible assets representing assets based on technology. Such assets may include patented and unpatented technology, databases as well as trade secrets. [Refer: Intangible assets other than goodwill]" } }, "en-us": { "role": { "label": "Technology" } } }, "localname": "TechnologybasedIntangibleAssetsMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails", "http://www.smith-nephew.com/role/DisclosureIntangibleAssetsDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis": { "auth_ref": [ "r75" ], "lang": { "en": { "role": { "documentation": "The axis of a table defines the relationship between the members in the table and the line items or concepts that complete the table." } }, "en-us": { "role": { "label": "Temporary difference, unused tax losses and unused tax credits [axis]" } } }, "localname": "TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationDeferredTaxationDetails", "http://www.smith-nephew.com/role/DisclosureTaxationFactorsAffectingFutureTaxChargesDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsMember": { "auth_ref": [ "r75" ], "lang": { "en": { "role": { "documentation": "This member stands for temporary differences, unused tax losses and unused tax credits. It also represents the standard value for the 'Temporary difference, unused tax losses and unused tax credits' axis if no other member is used. [Refer: Temporary differences [member]; Unused tax credits [member]; Unused tax losses [member]]" } }, "en-us": { "role": { "label": "Temporary difference, unused tax losses and unused tax credits [member]" } } }, "localname": "TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationDeferredTaxationDetails", "http://www.smith-nephew.com/role/DisclosureTaxationFactorsAffectingFutureTaxChargesDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_TerminationBenefitsExpense": { "auth_ref": [ "r120" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureOperatingProfitInformationAboutNatureAndCostOfServicesDetails": { "order": 3.0, "parentTag": "ifrs-full_EmployeeBenefitsExpense", "weight": 1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount of expense in relation to termination benefits. Termination benefits are employee benefits provided in exchange for the termination of an employee's employment as a result of either: (a) an entity's decision to terminate an employee's employment before the normal retirement date; or (b) an employee's decision to accept an offer of benefits in exchange for the termination of employment. [Refer: Employee benefits expense]" } }, "en-us": { "role": { "label": "Termination benefits expense", "verboseLabel": "Pension costs (including retirement healthcare" } } }, "localname": "TerminationBenefitsExpense", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureOperatingProfitInformationAboutNatureAndCostOfServicesDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_TopOfRangeMember": { "auth_ref": [ "r251", "r253", "r254", "r278", "r324", "r359" ], "lang": { "en": { "role": { "documentation": "This member stands for top of a range." } }, "en-us": { "role": { "label": "Maximum" } } }, "localname": "TopOfRangeMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails", "http://www.smith-nephew.com/role/DisclosureIntangibleAssetsDetails", "http://www.smith-nephew.com/role/DisclosureInventoriesDetails", "http://www.smith-nephew.com/role/DisclosureOtherNotesToAccountsStockOptionsOutstandingDetails", "http://www.smith-nephew.com/role/DisclosurePropertyPlantAndEquipmentDetails", "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_TradeAndOtherCurrentPayables": { "auth_ref": [ "r21" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureTradeAndOtherPayablesDetails": { "order": null, "parentTag": null, "root": true, "weight": null }, "http://www.smith-nephew.com/role/StatementGroupBalanceSheet": { "order": 4.0, "parentTag": "ifrs-full_CurrentLiabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en": { "role": { "documentation": "The amount of current trade payables and current other payables. [Refer: Current trade payables; Other current payables]" } }, "en-us": { "role": { "label": "Trade and other current payables", "terseLabel": "Trade and other payables", "totalLabel": "Total trade and other current payables" } } }, "localname": "TradeAndOtherCurrentPayables", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTradeAndOtherPayablesDetails", "http://www.smith-nephew.com/role/StatementGroupBalanceSheet" ], "xbrltype": "monetaryItemType" }, "ifrs-full_TradeAndOtherCurrentPayablesAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Trade and other current payables [abstract]", "terseLabel": "Trade and other payables due within one year" } } }, "localname": "TradeAndOtherCurrentPayablesAbstract", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTradeAndOtherPayablesDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_TradeAndOtherCurrentReceivables": { "auth_ref": [ "r19", "r35" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureTradeAndOtherReceivablesDetails": { "order": 1.0, "parentTag": "ifrs-full_TradeAndOtherReceivables", "weight": 1.0 }, "http://www.smith-nephew.com/role/StatementGroupBalanceSheet": { "order": 3.0, "parentTag": "ifrs-full_CurrentAssets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount of current trade receivables and current other receivables. [Refer: Current trade receivables; Other current receivables]" } }, "en-us": { "role": { "label": "Trade and other current receivables", "terseLabel": "Trade and other receivables", "totalLabel": "Total trade and other receivables, current" } } }, "localname": "TradeAndOtherCurrentReceivables", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTradeAndOtherReceivablesDetails", "http://www.smith-nephew.com/role/StatementGroupBalanceSheet" ], "xbrltype": "monetaryItemType" }, "ifrs-full_TradeAndOtherCurrentReceivablesAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "TRADE AND OTHER RECEIVABLES." } } }, "localname": "TradeAndOtherCurrentReceivablesAbstract", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "xbrltype": "stringItemType" }, "ifrs-full_TradeAndOtherPayablesAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "TRADE AND OTHER PAYABLES" } } }, "localname": "TradeAndOtherPayablesAbstract", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "xbrltype": "stringItemType" }, "ifrs-full_TradeAndOtherPayablesRecognisedAsOfAcquisitionDate": { "auth_ref": [ "r285" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails": { "order": 9.0, "parentTag": "ifrs-full_IdentifiableAssetsAcquiredLiabilitiesAssumed", "weight": -1.0 } }, "crdr": "credit", "lang": { "en": { "role": { "documentation": "The amount recognised as of the acquisition date for trade and other payables assumed in a business combination. [Refer: Trade and other payables; Business combinations [member]]" } }, "en-us": { "role": { "label": "Trade and other payables recognised as of acquisition date", "negatedTerseLabel": "Trade and other payable" } } }, "localname": "TradeAndOtherPayablesRecognisedAsOfAcquisitionDate", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_TradeAndOtherPayablesUndiscountedCashFlows": { "auth_ref": [ "r331", "r338" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsYearEndFinancialLiabilitiesByContractualMaturityDetails": { "order": 7.0, "parentTag": "snn_FinancialLiabilitiesUndiscountedCashFlows", "weight": 1.0 } }, "crdr": "credit", "lang": { "en": { "role": { "documentation": "The amount of contractual undiscounted cash flows in relation to trade and other payables. [Refer: Trade and other payables]" } }, "en-us": { "role": { "label": "Trade and other payables, undiscounted cash flows", "terseLabel": "Trade and other payables" } } }, "localname": "TradeAndOtherPayablesUndiscountedCashFlows", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsYearEndFinancialLiabilitiesByContractualMaturityDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_TradeAndOtherReceivables": { "auth_ref": [ "r19", "r35" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureTradeAndOtherReceivablesDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount of trade receivables and other receivables. [Refer: Trade receivables; Other receivables]" } }, "en-us": { "role": { "label": "Trade and other receivables", "totalLabel": "Total trade and other receivables" } } }, "localname": "TradeAndOtherReceivables", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTradeAndOtherReceivablesDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_TradingEquitySecuritiesMember": { "auth_ref": [ "r249", "r252" ], "lang": { "en": { "role": { "documentation": "This member stands for equity instruments that (a) are acquired or incurred principally for the purpose of selling or repurchasing it in the near term; or (b) on initial recognition are part of a portfolio of identified financial instruments that are managed together and for which there is evidence of a recent actual pattern of short-term profit-taking." } }, "en-us": { "role": { "label": "Investments" } } }, "localname": "TradingEquitySecuritiesMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementMovementOfFinancialInstrumentsDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_TradingIncomeExpense": { "auth_ref": [ "r49" ], "crdr": "credit", "lang": { "en": { "role": { "documentation": "The amount of income (expense) relating to trading assets and liabilities." } }, "en-us": { "role": { "label": "Trading income (expense)", "terseLabel": "Group trading profit" } } }, "localname": "TradingIncomeExpense", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationTradingAndOperatingProfitByBusinessSegmentDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_TransactionPriceAllocatedToRemainingPerformanceObligations": { "auth_ref": [ "r261" ], "crdr": "credit", "lang": { "en": { "role": { "documentation": "The amount of the transaction price allocated to the performance obligations that are unsatisfied (or partially unsatisfied) as of the end of the reporting period. The transaction price is the amount of consideration to which an entity expects to be entitled in exchange for transferring promised goods or services to a customer, excluding amounts collected on behalf of third parties (for example, some sales taxes). [Refer: Performance obligations [member]]" } }, "en-us": { "role": { "label": "Transaction price allocated to remaining performance obligations", "terseLabel": "Unsatisfied performance obligation" } } }, "localname": "TransactionPriceAllocatedToRemainingPerformanceObligations", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_TransfersIntoLevel3OfFairValueHierarchyAssets": { "auth_ref": [ "r246" ], "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount of transfers of assets into Level 3 of the fair value hierarchy. [Refer: Level 3 of fair value hierarchy [member]]" } }, "en-us": { "role": { "label": "Transfers into Level 3 of fair value hierarchy, assets", "terseLabel": "Transfer into Level 3 assets" } } }, "localname": "TransfersIntoLevel3OfFairValueHierarchyAssets", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementFairValueDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_TransfersIntoLevel3OfFairValueHierarchyLiabilities": { "auth_ref": [ "r246" ], "crdr": "credit", "lang": { "en": { "role": { "documentation": "The amount of transfers of liabilities into Level 3 of the fair value hierarchy. [Refer: Level 3 of fair value hierarchy [member]]" } }, "en-us": { "role": { "label": "Transfers into Level 3 of fair value hierarchy, liabilities", "terseLabel": "Transfer into Level 3 liabilities" } } }, "localname": "TransfersIntoLevel3OfFairValueHierarchyLiabilities", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementFairValueDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_TransfersOutOfLevel1IntoLevel2OfFairValueHierarchyAssets": { "auth_ref": [ "r243" ], "lang": { "en": { "role": { "documentation": "The amount of transfers out of Level 1 and into Level 2 of the fair value hierarchy of assets held at the end of the reporting period. [Refer: Level 1 of fair value hierarchy [member]; Level 2 of fair value hierarchy [member]]" } }, "en-us": { "role": { "label": "Transfers out of Level 1 into Level 2 of fair value hierarchy, assets held at end of reporting period", "terseLabel": "Transfer from Level 1 to Level 2 assets" } } }, "localname": "TransfersOutOfLevel1IntoLevel2OfFairValueHierarchyAssets", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementFairValueDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_TransfersOutOfLevel1IntoLevel2OfFairValueHierarchyLiabilities": { "auth_ref": [ "r243" ], "lang": { "en": { "role": { "documentation": "The amount of transfers out of Level 1 and into Level 2 of the fair value hierarchy of liabilities held at the end of the reporting period. [Refer: Level 1 of fair value hierarchy [member]; Level 2 of fair value hierarchy [member]]" } }, "en-us": { "role": { "label": "Transfers out of Level 1 into Level 2 of fair value hierarchy, liabilities held at end of reporting period", "terseLabel": "Transfer from Level 1 to Level 2 liabilities" } } }, "localname": "TransfersOutOfLevel1IntoLevel2OfFairValueHierarchyLiabilities", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementFairValueDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_TransfersOutOfLevel2IntoLevel1OfFairValueHierarchyAssets": { "auth_ref": [ "r243" ], "lang": { "en": { "role": { "documentation": "The amount of transfers out of Level 2 and into Level 1 of the fair value hierarchy of assets held at the end of the reporting period. [Refer: Level 1 of fair value hierarchy [member]; Level 2 of fair value hierarchy [member]]" } }, "en-us": { "role": { "label": "Transfers out of Level 2 into Level 1 of fair value hierarchy, assets held at end of reporting period", "terseLabel": "Transfer from Level 2 to Level 1 assets" } } }, "localname": "TransfersOutOfLevel2IntoLevel1OfFairValueHierarchyAssets", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementFairValueDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_TransfersOutOfLevel2IntoLevel1OfFairValueHierarchyLiabilities": { "auth_ref": [ "r243" ], "lang": { "en": { "role": { "documentation": "The amount of transfers out of Level 2 and into Level 1 of the fair value hierarchy of liabilities held at the end of the reporting period. [Refer: Level 1 of fair value hierarchy [member]; Level 2 of fair value hierarchy [member]]" } }, "en-us": { "role": { "label": "Transfers out of Level 2 into Level 1 of fair value hierarchy, liabilities held at end of reporting period", "terseLabel": "Transfer from Level 2 to Level 1 liabilities" } } }, "localname": "TransfersOutOfLevel2IntoLevel1OfFairValueHierarchyLiabilities", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementFairValueDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_TransfersOutOfLevel3OfFairValueHierarchyAssets": { "auth_ref": [ "r246" ], "crdr": "credit", "lang": { "en": { "role": { "documentation": "The amount of transfers of assets out of Level 3 of the fair value hierarchy. [Refer: Level 3 of fair value hierarchy [member]]" } }, "en-us": { "role": { "label": "Transfers out of Level 3 of fair value hierarchy, assets", "negatedTerseLabel": "Transfers", "terseLabel": "Transfer out of Level 3 assets" } } }, "localname": "TransfersOutOfLevel3OfFairValueHierarchyAssets", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementFairValueDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementMovementOfFinancialInstrumentsDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_TransfersOutOfLevel3OfFairValueHierarchyLiabilities": { "auth_ref": [ "r246" ], "crdr": "debit", "lang": { "en": { "role": { "documentation": "The amount of transfers of liabilities out of Level 3 of the fair value hierarchy. [Refer: Level 3 of fair value hierarchy [member]]" } }, "en-us": { "role": { "label": "Transfers out of Level 3 of fair value hierarchy, liabilities", "terseLabel": "Transfer out of Level 3 liabilities", "verboseLabel": "Transfers" } } }, "localname": "TransfersOutOfLevel3OfFairValueHierarchyLiabilities", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementFairValueDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementMovementOfFinancialInstrumentsDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_TreasuryShares": { "auth_ref": [ "r38", "r148" ], "calculation": { "http://www.smith-nephew.com/role/StatementGroupBalanceSheet": { "order": 6.0, "parentTag": "ifrs-full_EquityAttributableToOwnersOfParent", "weight": -1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "An entity\u2019s own equity instruments, held by the entity or other members of the consolidated group." } }, "en-us": { "role": { "label": "Treasury shares.", "negatedLabel": "Treasury shares", "periodEndLabel": "Treasury shares - Ending balance", "periodStartLabel": "Treasury shares - Beginning balance" } } }, "localname": "TreasuryShares", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEquityTreasurySharesDetails", "http://www.smith-nephew.com/role/StatementGroupBalanceSheet" ], "xbrltype": "monetaryItemType" }, "ifrs-full_TreasurySharesMember": { "auth_ref": [ "r9" ], "lang": { "en": { "role": { "documentation": "This member stands for the entity\u2019s own equity instruments, held by the entity or other members of the consolidated group." } }, "en-us": { "role": { "label": "Treasury shares" } } }, "localname": "TreasurySharesMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEquityEquityComponentsDetails", "http://www.smith-nephew.com/role/DisclosureEquitySharesBuyBackDetails", "http://www.smith-nephew.com/role/DisclosureEquityTreasurySharesDetails", "http://www.smith-nephew.com/role/StatementGroupStatementOfChangesInEquity" ], "xbrltype": "domainItemType" }, "ifrs-full_TypesOfHedgesAxis": { "auth_ref": [ "r303", "r304", "r306", "r382" ], "lang": { "en": { "role": { "documentation": "The axis of a table defines the relationship between the members in the table and the line items or concepts that complete the table." } }, "en-us": { "role": { "label": "Types of hedges [axis]" } } }, "localname": "TypesOfHedgesAxis", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementHedgeDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementNetInvestmentHedgeDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_TypesOfHedgesMember": { "auth_ref": [ "r303", "r304", "r306", "r382" ], "lang": { "en": { "role": { "documentation": "This member stands for all types of hedges. It also represents the standard value for the 'Types of hedges' axis if no other member is used." } }, "en-us": { "role": { "label": "Hedges [member]" } } }, "localname": "TypesOfHedgesMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementHedgeDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementNetInvestmentHedgeDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_TypesOfInterestRatesAxis": { "auth_ref": [ "r320" ], "lang": { "en": { "role": { "documentation": "The axis of a table defines the relationship between the members in the table and the line items or concepts that complete the table." } }, "en-us": { "role": { "label": "Types of interest rates [axis]" } } }, "localname": "TypesOfInterestRatesAxis", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementInterestBearingAssetsDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementInterestBearingLiabilitiesDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_TypesOfRisksAxis": { "auth_ref": [ "r298", "r311", "r312", "r360", "r361", "r362", "r364" ], "lang": { "en": { "role": { "documentation": "The axis of a table defines the relationship between the members in the table and the line items or concepts that complete the table." } }, "en-us": { "role": { "label": "Types of risks [axis]" } } }, "localname": "TypesOfRisksAxis", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementCreditRiskExposuresDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementForeignExchangeExposuresDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementHedgeDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementInterestRateExposuresDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementNetInvestmentHedgeDetails" ], "xbrltype": "stringItemType" }, "ifrs-full_TypesOfRisksMember": { "auth_ref": [ "r298", "r311", "r312", "r360", "r361", "r362", "r364" ], "lang": { "en": { "role": { "documentation": "This member stands for all types of risks. It also represents the standard value for the 'Types of risks' axis if no other member is used." } }, "en-us": { "role": { "label": "Risks [member]" } } }, "localname": "TypesOfRisksMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementCreditRiskExposuresDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementForeignExchangeExposuresDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementHedgeDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementInterestRateExposuresDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementNetInvestmentHedgeDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_UnusedTaxLossesMember": { "auth_ref": [ "r75" ], "lang": { "en": { "role": { "documentation": "This member stands for tax losses that have been incurred and are carried forward for use against future taxable profit." } }, "en-us": { "role": { "label": "Unused tax losses" } } }, "localname": "UnusedTaxLossesMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationDeferredTaxationDetails", "http://www.smith-nephew.com/role/DisclosureTaxationFactorsAffectingFutureTaxChargesDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_UsefulLifeMeasuredAsPeriodOfTimeIntangibleAssetsOtherThanGoodwill": { "auth_ref": [ "r175" ], "lang": { "en": { "role": { "documentation": "The useful life, measured as period of time, used for intangible assets other than goodwill. [Refer: Intangible assets other than goodwill]" } }, "en-us": { "role": { "label": "Useful life measured as period of time, intangible assets other than goodwill", "terseLabel": "Useful Life" } } }, "localname": "UsefulLifeMeasuredAsPeriodOfTimeIntangibleAssetsOtherThanGoodwill", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureIntangibleAssetsDetails" ], "xbrltype": "durationItemType" }, "ifrs-full_WagesAndSalaries": { "auth_ref": [ "r124" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureOperatingProfitInformationAboutNatureAndCostOfServicesDetails": { "order": 1.0, "parentTag": "ifrs-full_EmployeeBenefitsExpense", "weight": 1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "A class of employee benefits expense that represents wages and salaries. [Refer: Employee benefits expense]" } }, "en-us": { "role": { "label": "Wages and salaries", "terseLabel": "Wages and salaries" } } }, "localname": "WagesAndSalaries", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureOperatingProfitInformationAboutNatureAndCostOfServicesDetails" ], "xbrltype": "monetaryItemType" }, "ifrs-full_WeightedAverageDurationOfDefinedBenefitObligation2019": { "auth_ref": [ "r118" ], "lang": { "en": { "role": { "documentation": "The weighted average duration of a defined benefit obligation. [Refer: Weighted average [member]]" } }, "en-us": { "role": { "label": "Weighted average duration of defined benefit obligation" } } }, "localname": "WeightedAverageDurationOfDefinedBenefitObligation2019", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsReconciliationOfBenefitObligationsAndPensionAssetsDetails" ], "xbrltype": "durationItemType" }, "ifrs-full_WeightedAverageMember": { "auth_ref": [ "r251", "r253", "r254", "r324", "r359" ], "lang": { "en": { "role": { "documentation": "This member stands for an average in which each quantity to be averaged is assigned a weight that determines the relative effect of each quantity on the average." } }, "en-us": { "role": { "label": "Weighted average" } } }, "localname": "WeightedAverageMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementInterestBearingLiabilitiesDetails", "http://www.smith-nephew.com/role/DisclosureGoodwillDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_WeightedAverageShares": { "auth_ref": [ "r152" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureEarningsPerOrdinaryShareEarningsPerOrdinaryShareDetails": { "order": 1.0, "parentTag": "ifrs-full_AdjustedWeightedAverageShares", "weight": 1.0 } }, "lang": { "en": { "role": { "documentation": "The number of ordinary shares outstanding at the beginning of the period, adjusted by the number of ordinary shares bought back or issued during the period multiplied by a time-weighting factor." } }, "en-us": { "role": { "label": "Weighted average number of ordinary shares outstanding", "terseLabel": "Basic weighted number of shares" } } }, "localname": "WeightedAverageShares", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEarningsPerOrdinaryShareEarningsPerOrdinaryShareDetails" ], "xbrltype": "sharesItemType" }, "ifrs-full_WhollyOrPartlyFundedDefinedBenefitPlansMember": { "auth_ref": [ "r95" ], "lang": { "en": { "role": { "documentation": "This member stands for wholly funded or partly funded defined benefit plans. [Refer: Defined benefit plans [member]]" } }, "en-us": { "role": { "label": "Funded plans" } } }, "localname": "WhollyOrPartlyFundedDefinedBenefitPlansMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_WhollyUnfundedDefinedBenefitPlansMember": { "auth_ref": [ "r95" ], "lang": { "en": { "role": { "documentation": "This member stands for wholly unfunded defined benefit plans. [Refer: Defined benefit plans [member]]" } }, "en-us": { "role": { "label": "Unfunded plans" } } }, "localname": "WhollyUnfundedDefinedBenefitPlansMember", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsDetails" ], "xbrltype": "domainItemType" }, "ifrs-full_WorkInProgress": { "auth_ref": [ "r36", "r129" ], "calculation": { "http://www.smith-nephew.com/role/DisclosureInventoriesDetails": { "order": 2.0, "parentTag": "ifrs-full_Inventories", "weight": 1.0 } }, "crdr": "debit", "lang": { "en": { "role": { "documentation": "A classification of current inventory representing the amount of assets currently in production, which require further processes to be converted into finished goods or services. [Refer: Current finished goods; Inventories]" } }, "en-us": { "role": { "label": "Current work in progress", "terseLabel": "Work-in-progress" } } }, "localname": "WorkInProgress", "nsuri": "http://xbrl.ifrs.org/taxonomy/2021-03-24/ifrs-full", "presentation": [ "http://www.smith-nephew.com/role/DisclosureInventoriesDetails" ], "xbrltype": "monetaryItemType" }, "snn_AcceleratedTaxDepreciationMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This member stands for accelerated tax depreciation.", "label": "Accelerated tax depreciation" } } }, "localname": "AcceleratedTaxDepreciationMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationDeferredTaxationDetails" ], "xbrltype": "domainItemType" }, "snn_AcquisitionAndDisposalRelatedCostChargedWithinOperatingProfit": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Acquisition and disposal related items charged within operating profit.", "label": "Acquisition and Disposal Related Cost charged within Operating Profit", "terseLabel": "Acquisition and disposal related items charged within operating profit" } } }, "localname": "AcquisitionAndDisposalRelatedCostChargedWithinOperatingProfit", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEarningsPerOrdinaryShareCalculationOfBasicDilutedAndAdjustedEarningsPerShareDetails" ], "xbrltype": "monetaryItemType" }, "snn_AcquisitionAndDisposalRelatedCostChargedWithinShareOfResultOfAssociates": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Acquisition and disposal related items charged within share of result of associates.", "label": "Acquisition and Disposal Related Cost charged within Share of Result of Associates", "terseLabel": "Acquisition and disposal related items charged within share of result of associates" } } }, "localname": "AcquisitionAndDisposalRelatedCostChargedWithinShareOfResultOfAssociates", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEarningsPerOrdinaryShareCalculationOfBasicDilutedAndAdjustedEarningsPerShareDetails" ], "xbrltype": "monetaryItemType" }, "snn_AcquisitionAndDisposalRelatedCostsRecognisedAsExpenseIncludedInResearchAndDevelopmentExpenses": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The amount of acquisition and disposal related costs included in research and development expenses.", "label": "Acquisition and Disposal Related Costs Recognised as Expense Included in Research and Development Expenses", "terseLabel": "Acquisition and disposal related costs included in research and development expenses" } } }, "localname": "AcquisitionAndDisposalRelatedCostsRecognisedAsExpenseIncludedInResearchAndDevelopmentExpenses", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureOperatingProfitDetails" ], "xbrltype": "monetaryItemType" }, "snn_AcquisitionAndDisposalRelatedCostsRecognisedAsExpenseIncomeForTransactionRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombination": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The amount of acquisition and disposal related costs recognised as an expense (income) for transactions that are recognised separately from the acquisition of assets and the assumption of liabilities in business combinations.", "label": "Acquisition and Disposal Related Costs Recognised as Expense (Income) for Transaction Recognised Separately from Acquisition of Assets and Assumption of Liabilities in Business Combination", "terseLabel": "Acquisition and disposal related items" } } }, "localname": "AcquisitionAndDisposalRelatedCostsRecognisedAsExpenseIncomeForTransactionRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombination", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationTradingAndOperatingProfitByBusinessSegmentDetails" ], "xbrltype": "monetaryItemType" }, "snn_AcquisitionConsiderationDiscountedCashFlows": { "auth_ref": [], "calculation": { "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsYearEndFinancialLiabilitiesByContractualMaturityDetails": { "order": 1.0, "parentTag": "snn_FinancialLiabilitiesUndiscountedCashFlows", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The amount of contractual discounted cash flows in relation to acquisition consideration.", "label": "Acquisition Consideration Discounted Cash Flows", "terseLabel": "Acquisition consideration" } } }, "localname": "AcquisitionConsiderationDiscountedCashFlows", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsYearEndFinancialLiabilitiesByContractualMaturityDetails" ], "xbrltype": "monetaryItemType" }, "snn_AcquisitionConsiderationLiabilityMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This member stands for acquisition consideration liability.", "label": "Acquisition consideration liability" } } }, "localname": "AcquisitionConsiderationLiabilityMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementMovementOfFinancialInstrumentsDetails" ], "xbrltype": "domainItemType" }, "snn_AcquisitionConsiderationMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This member stands for acquisition consideration liabilities.", "label": "Acquisition consideration" } } }, "localname": "AcquisitionConsiderationMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementFairValueDetails" ], "xbrltype": "domainItemType" }, "snn_AcquisitionDateEquityInterestHeldByAcquireeImmediatelyAfterAcquisitiondate": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Equity interest held by acquiree immediately after acquisition.", "label": "Acquisition Date Equity Interest Held by Acquiree Immediately After AcquisitionDate", "terseLabel": "Equity interest held by acquiree immediately after acquisition" } } }, "localname": "AcquisitionDateEquityInterestHeldByAcquireeImmediatelyAfterAcquisitiondate", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails" ], "xbrltype": "pureItemType" }, "snn_AcquisitionDateEquityInterestHeldByAcquireeImmediatelyBeforeAcquisitionDate": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Equity interest held by acquiree immediately before acquisition date.", "label": "Acquisition Date Equity Interest Held by Acquiree Immediately Before Acquisition Date", "terseLabel": "Equity interest held by acquiree immediately before acquisition date" } } }, "localname": "AcquisitionDateEquityInterestHeldByAcquireeImmediatelyBeforeAcquisitionDate", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails" ], "xbrltype": "pureItemType" }, "snn_AcquisitionDateFairValueMaximumConsiderationPayable": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The fair value, at acquisition date, of the maximum consideration payable at the acquisition date.", "label": "Acquisition Date, Fair Value, Maximum Consideration Payable", "terseLabel": "Fair value of maximum consideration payable" } } }, "localname": "AcquisitionDateFairValueMaximumConsiderationPayable", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails" ], "xbrltype": "monetaryItemType" }, "snn_AcquisitionDateMaximumConsiderationPayable": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The maximum consideration payable at the acquisition date.", "label": "Acquisition Date, Maximum Consideration Payable", "terseLabel": "Maximum consideration payable at the acquisition date" } } }, "localname": "AcquisitionDateMaximumConsiderationPayable", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails", "http://www.smith-nephew.com/role/DisclosurePostBalanceSheetEventsDetails" ], "xbrltype": "monetaryItemType" }, "snn_AcquisitionRelatedCostsRecognisedAsExpenseInBusinessCombinationIncludedInAdministrativeExpenses": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The amount of acquisition-related costs included in administrative expenses (outside management's definition of trading profit).", "label": "Acquisition-related costs recognised as expense in business combination included in administrative expenses", "terseLabel": "Acquisition-related costs included in administrative expenses" } } }, "localname": "AcquisitionRelatedCostsRecognisedAsExpenseInBusinessCombinationIncludedInAdministrativeExpenses", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureOperatingProfitDetails" ], "xbrltype": "monetaryItemType" }, "snn_AcquisitionRelatedCostsRecognisedAsExpenseIncomeForAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombination": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "That amount of acquisition-related expense (income) related to business combinations.", "label": "Acquisition Related Costs Recognised as Expense (Income) for Acquisition of Assets and Assumption of Liabilities in Business Combination", "terseLabel": "Acquisition-related costs" } } }, "localname": "AcquisitionRelatedCostsRecognisedAsExpenseIncomeForAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombination", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEarningsPerOrdinaryShareCalculationOfBasicDilutedAndAdjustedEarningsPerShareDetails" ], "xbrltype": "monetaryItemType" }, "snn_Acquisitions2019Member": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This member stands for 2019 acquisitions.", "label": "2019 Acquisitions" } } }, "localname": "Acquisitions2019Member", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails", "http://www.smith-nephew.com/role/DisclosureAcquisitionsTables" ], "xbrltype": "domainItemType" }, "snn_AcquisitionsFairValueMeasurementLiabilities": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The increase in the fair value measurement of liabilities resulting from acquisitions of those liabilities.", "label": "Acquisitions Fair Value Measurement Liabilities", "negatedLabel": "Arising on acquisitions" } } }, "localname": "AcquisitionsFairValueMeasurementLiabilities", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementMovementOfFinancialInstrumentsDetails" ], "xbrltype": "monetaryItemType" }, "snn_ActuarialAssumptionOfExpectedRatesOfInflationConsumerPriceIndex": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The expected consumer price index (CPI) rate of inflation that is used as a significant actuarial assumption to determine the present value of a defined benefit obligation.", "label": "Actuarial assumption of expected rates of inflation, Consumer Price Index", "terseLabel": "Inflation (CPI)" } } }, "localname": "ActuarialAssumptionOfExpectedRatesOfInflationConsumerPriceIndex", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsPrincipalActuarialAssumptionsDetails" ], "xbrltype": "percentItemType" }, "snn_ActuarialAssumptionOfExpectedRatesOfInflationRetailPriceIndex": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The expected retail price index (RPI) rate of inflation that is used as a significant actuarial assumption to determine the present value of a defined benefit obligation.", "label": "Actuarial assumption of expected rates of inflation, Retail Price Index", "terseLabel": "Inflation (RPI)" } } }, "localname": "ActuarialAssumptionOfExpectedRatesOfInflationRetailPriceIndex", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsPrincipalActuarialAssumptionsDetails" ], "xbrltype": "percentItemType" }, "snn_ActuarialAssumptionOfRiskFreeDiscountRateContingentConsideration": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The risk-free discount rate used as the significant actuarial assumption to determine the present value of contingent consideration.", "label": "Actuarial Assumption of Risk-free Discount Rate, Contingent Consideration", "terseLabel": "Risk-free discount rate (as a percent)" } } }, "localname": "ActuarialAssumptionOfRiskFreeDiscountRateContingentConsideration", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails" ], "xbrltype": "percentItemType" }, "snn_ActuarialGainsLossesArisingFromLiabilityExperience": { "auth_ref": [], "calculation": { "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsReconciliationOfBenefitObligationsAndPensionAssetsDetails": { "order": 1.0, "parentTag": "ifrs-full_OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The decrease (increase) in a net defined benefit liability (asset) resulting from actuarial gains (losses) due to liability experience.", "label": "Actuarial gains (losses) arising from liability experience", "terseLabel": "Actuarial gain due to liability experience" } } }, "localname": "ActuarialGainsLossesArisingFromLiabilityExperience", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsReconciliationOfBenefitObligationsAndPensionAssetsDetails" ], "xbrltype": "monetaryItemType" }, "snn_AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwillAccruedCapitalSpend": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The amount of accrued capital additions to intangible assets other than goodwill, other than those acquired through business combinations.", "label": "Additions Other Than Through Business Combinations, Intangible Assets Other Than Goodwill, Accrued Capital Spend", "terseLabel": "Accrued capital spend" } } }, "localname": "AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwillAccruedCapitalSpend", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureIntangibleAssetsDetails" ], "xbrltype": "monetaryItemType" }, "snn_AdditionsToAvailableForSaleSecuritiesFairValue": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Represents the fair value of additions to available for sale securities, including purchases, transfers and other additions, for the period.", "label": "Additions to available for sale securities, fair value", "terseLabel": "Additions" } } }, "localname": "AdditionsToAvailableForSaleSecuritiesFairValue", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureInvestmentsDetails" ], "xbrltype": "monetaryItemType" }, "snn_AdjustedEarningLossPerShareBasic": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The earnings per share calculated using the basic weighted number of shares.", "label": "Adjusted Earning Loss Per Share, Basic", "terseLabel": "Adjusted, Basic" } } }, "localname": "AdjustedEarningLossPerShareBasic", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEarningsPerOrdinaryShareEarningsPerOrdinaryShareDetails" ], "xbrltype": "perShareItemType" }, "snn_AdjustedEarningLossPerShareDiluted": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The earnings per share calculated using the diluted weighted number of shares.", "label": "Adjusted Earning Loss Per Share, Diluted", "terseLabel": "Adjusted, Diluted" } } }, "localname": "AdjustedEarningLossPerShareDiluted", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEarningsPerOrdinaryShareEarningsPerOrdinaryShareDetails" ], "xbrltype": "perShareItemType" }, "snn_AdjustedProfitLoss": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The total of income less expenses, excluding the components of other comprehensive income and other adjustable income or expense defined as non-trading.", "label": "Adjusted Profit Loss", "terseLabel": "Adjusted attributable profit (see below)" } } }, "localname": "AdjustedProfitLoss", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEarningsPerOrdinaryShareCalculationOfBasicDilutedAndAdjustedEarningsPerShareDetails" ], "xbrltype": "monetaryItemType" }, "snn_AdjustmentsForCurrentAndDeferredTaxOfPriorPeriodNet": { "auth_ref": [], "calculation": { "http://www.smith-nephew.com/role/DisclosureTaxationFactorsAffectingFutureTaxChargesDetails": { "order": 10.0, "parentTag": "ifrs-full_IncomeTaxExpenseContinuingOperations", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Net adjustments of tax expense (income) recognised in the period for current and deferred tax of prior periods.", "label": "Adjustments for Current and Deferred Tax of Prior Period Net", "negatedLabel": "Net prior period adjustment benefit", "terseLabel": "Adjustments in respect of prior years" } } }, "localname": "AdjustmentsForCurrentAndDeferredTaxOfPriorPeriodNet", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationFactorsAffectingFutureTaxChargesDetails", "http://www.smith-nephew.com/role/DisclosureTaxationTaxationAttributableToGroupDetails" ], "xbrltype": "monetaryItemType" }, "snn_AdjustmentsForCurrentAndDeferredTaxOfPriorPeriodNetCurrentTaxCreditSuccessfulTaxLitigation": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Net adjustments of tax expense (income) recognised in the period for current and deferred tax of prior periods due to current tax credit of successful tax litigation.", "label": "Adjustments for Current and Deferred Tax of Prior Period Net, Current Tax Credit, Successful Tax Litigation", "terseLabel": "Current tax credit due to successful tax litigation" } } }, "localname": "AdjustmentsForCurrentAndDeferredTaxOfPriorPeriodNetCurrentTaxCreditSuccessfulTaxLitigation", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationTaxationAttributableToGroupDetails" ], "xbrltype": "monetaryItemType" }, "snn_AdjustmentsForIncreaseDecreaseInTradeAndOtherPayablesAndProvisions": { "auth_ref": [], "calculation": { "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement": { "order": 10.0, "parentTag": "ifrs-full_CashFlowsFromUsedInOperations", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Adjustments for increase (decrease) in trade and other payables and provisions to reconcile profit (loss) to net cash flow from (used in) operating activities.", "label": "Adjustments for Increase (Decrease) in Trade and Other Payables and Provisions", "verboseLabel": "Increase/(decrease) in trade and other payables and provisions" } } }, "localname": "AdjustmentsForIncreaseDecreaseInTradeAndOtherPayablesAndProvisions", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement" ], "xbrltype": "monetaryItemType" }, "snn_AdjustmentsToFairValueOfGoodwill": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The amount of adjustments to fair value of goodwill.", "label": "Adjustments to Fair Value of Goodwill", "terseLabel": "Adjustments to fair value of goodwill" } } }, "localname": "AdjustmentsToFairValueOfGoodwill", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails" ], "xbrltype": "monetaryItemType" }, "snn_AdjustmentsToProfitLossOfAssociatesAccountedForUsingEquityMethod": { "auth_ref": [], "calculation": { "http://www.smith-nephew.com/role/DisclosureInvestmentsInAssociatesSummarisedStatementOfComprehensiveIncomeDetails": { "order": 2.0, "parentTag": "ifrs-full_ComprehensiveIncome", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Adjustments to align the reporting profit (loss) of associates accounted for using equity method.", "label": "Adjustments to Profit Loss of Associates Accounted for Using Equity Method", "terseLabel": "Group adjustments" } } }, "localname": "AdjustmentsToProfitLossOfAssociatesAccountedForUsingEquityMethod", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureInvestmentsInAssociatesSummarisedStatementOfComprehensiveIncomeDetails" ], "xbrltype": "monetaryItemType" }, "snn_AdministrativeCostsAndTaxesNetBenefitLiabilityAsset": { "auth_ref": [], "calculation": { "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsReconciliationOfBenefitObligationsAndPensionAssetsDetails": { "order": 5.0, "parentTag": "snn_CostRecognisedInIncomeStatementNetDefinedBenefitLiabilityAsset", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The effect on the net defined benefit liability (asset) of expenses related to defined benefit plans that the entity classifies as being administrative.", "label": "Administrative costs and taxes net benefit liability asset", "negatedLabel": "Administration costs and taxes" } } }, "localname": "AdministrativeCostsAndTaxesNetBenefitLiabilityAsset", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsReconciliationOfBenefitObligationsAndPensionAssetsDetails" ], "xbrltype": "monetaryItemType" }, "snn_AdvancedWoundBioactivesMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This member stands for the Advanced Wound Bioactives product line.", "label": "Advanced Wound Bioactives" } } }, "localname": "AdvancedWoundBioactivesMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationDetails" ], "xbrltype": "domainItemType" }, "snn_AdvancedWoundCareMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This member stands for the Advanced Wound Care product line.", "label": "Advanced Wound Care" } } }, "localname": "AdvancedWoundCareMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationDetails" ], "xbrltype": "domainItemType" }, "snn_AdvancedWoundDevicesMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This member stands for the Advanced Wound Devices product line.", "label": "Advanced Wound Devices" } } }, "localname": "AdvancedWoundDevicesMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationDetails" ], "xbrltype": "domainItemType" }, "snn_AdvancedWoundManagementMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This member stands for Advanced Wound Management.", "label": "Advanced Wound Management" } } }, "localname": "AdvancedWoundManagementMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationDetails", "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationTradingAndOperatingProfitByBusinessSegmentDetails", "http://www.smith-nephew.com/role/DisclosureGoodwillDetails" ], "xbrltype": "domainItemType" }, "snn_AdvertisingCosts": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The amount of expense relating to the advertising costs of goods or services.", "label": "Advertising costs", "terseLabel": "Advertising costs" } } }, "localname": "AdvertisingCosts", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureOperatingProfitDetails" ], "xbrltype": "monetaryItemType" }, "snn_AmortisationAndImpairmentOfAcquisitionIntangibles": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The amount of amortisation and impairment of acquisition intangibles.", "label": "Amortisation and Impairment of Acquisition Intangibles", "terseLabel": "Amortisation and impairment of acquisition intangibles" } } }, "localname": "AmortisationAndImpairmentOfAcquisitionIntangibles", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationTradingAndOperatingProfitByBusinessSegmentDetails", "http://www.smith-nephew.com/role/DisclosureOperatingProfitDetails" ], "xbrltype": "monetaryItemType" }, "snn_AmortisationAndImpairmentOfAcquisitionIntangiblesCostChargedWithinOperatingProfit": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amortisation and impairment of acquisition intangibles cost charged within operating profit.", "label": "Amortisation and Impairment of Acquisition Intangibles Cost charged within Operating Profit", "terseLabel": "Amortisation and impairment of acquisition intangibles cost charged within operating profit" } } }, "localname": "AmortisationAndImpairmentOfAcquisitionIntangiblesCostChargedWithinOperatingProfit", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEarningsPerOrdinaryShareCalculationOfBasicDilutedAndAdjustedEarningsPerShareDetails" ], "xbrltype": "monetaryItemType" }, "snn_AmortisationAndImpairmentOfAcquisitionIntangiblesIncludingShareOfAssociates": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The amount of amortisation and impairment of acquisition intangibles, including charge within share of result of associates.", "label": "Amortisation and Impairment of Acquisition Intangibles, Including Share of Associates", "terseLabel": "Amortisation and impairment of acquisition intangibles" } } }, "localname": "AmortisationAndImpairmentOfAcquisitionIntangiblesIncludingShareOfAssociates", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEarningsPerOrdinaryShareCalculationOfBasicDilutedAndAdjustedEarningsPerShareDetails" ], "xbrltype": "monetaryItemType" }, "snn_AmountOfExposureAsPercentage": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Percent of exposure the hedge covers.", "label": "Amount of Exposure, As A Percentage", "terseLabel": "Percentage of exposure the hedge covers" } } }, "localname": "AmountOfExposureAsPercentage", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementForeignExchangeExposuresDetails" ], "xbrltype": "percentItemType" }, "snn_ArthrocareMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This member stands for ArthroCare.", "label": "ArthroCare" } } }, "localname": "ArthrocareMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureIntangibleAssetsDetails" ], "xbrltype": "domainItemType" }, "snn_ArthroscopicEnablingTechnologiesMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This member stands for the entity's Arthroscopic Enabling Technologies.", "label": "Arthroscopic Enabling Technologies" } } }, "localname": "ArthroscopicEnablingTechnologiesMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationDetails" ], "xbrltype": "domainItemType" }, "snn_AtracsysMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This member stands for Atracys.", "label": "Atracsys" } } }, "localname": "AtracsysMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails" ], "xbrltype": "domainItemType" }, "snn_AttributableProfitReconciledToAdjustedAttributableProfitAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "No definition available.", "label": "Attributable Profit Reconciled To Adjusted Attributable Profit [Abstract]", "terseLabel": "Attributable profit is reconciled to adjusted attributable profit as follows:" } } }, "localname": "AttributableProfitReconciledToAdjustedAttributableProfitAbstract", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEarningsPerOrdinaryShareCalculationOfBasicDilutedAndAdjustedEarningsPerShareDetails" ], "xbrltype": "stringItemType" }, "snn_AuditorsRemunerationForAuditServicesForLocalStatutoryAuditPursuantToLegislation": { "auth_ref": [], "calculation": { "http://www.smith-nephew.com/role/DisclosureOperatingProfitInformationAboutNatureAndCostOfServicesDetails": { "order": 2.0, "parentTag": "ifrs-full_AuditorsRemuneration", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The amount of fees paid or payable to the entity's external auditors for auditing services with respect to local statutory audit pursuant to legislation.", "label": "Auditors Remuneration for Audit Services for Local Statutory Audit Pursuant to Legislation", "terseLabel": "Local statutory audit pursuant to legislation" } } }, "localname": "AuditorsRemunerationForAuditServicesForLocalStatutoryAuditPursuantToLegislation", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureOperatingProfitInformationAboutNatureAndCostOfServicesDetails" ], "xbrltype": "monetaryItemType" }, "snn_AuditorsRemunerationForAuditServicesOfGroupAccounts": { "auth_ref": [], "calculation": { "http://www.smith-nephew.com/role/DisclosureOperatingProfitInformationAboutNatureAndCostOfServicesDetails": { "order": 3.0, "parentTag": "ifrs-full_AuditorsRemuneration", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The amount of fees paid or payable to the entity's external auditors for auditing services with respect to group accounts.", "label": "Auditors Remuneration for Audit Services of Group Accounts", "terseLabel": "Group accounts" } } }, "localname": "AuditorsRemunerationForAuditServicesOfGroupAccounts", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureOperatingProfitInformationAboutNatureAndCostOfServicesDetails" ], "xbrltype": "monetaryItemType" }, "snn_BankLoansMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This member stands for bank loans.", "label": "Bank loans" } } }, "localname": "BankLoansMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementFairValueDetails" ], "xbrltype": "domainItemType" }, "snn_BankOverdraftMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Bank overdrafts.", "label": "Overdrafts" } } }, "localname": "BankOverdraftMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashFlowStatementAnalysisOfNetDebtDetails" ], "xbrltype": "domainItemType" }, "snn_BankOverdraftsBorrowingsLoansAndLeaseLiabilitiesCurrent": { "auth_ref": [], "calculation": { "http://www.smith-nephew.com/role/StatementGroupBalanceSheet": { "order": 1.0, "parentTag": "ifrs-full_CurrentLiabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The carrying amount as of the balance sheet date of bank overdrafts, borrowings, loans and lease liabilities classified as current.", "label": "Bank Overdrafts, Borrowings, Loans And Lease Liabilities Current", "terseLabel": "Bank overdrafts, borrowings, loans and lease liabilities" } } }, "localname": "BankOverdraftsBorrowingsLoansAndLeaseLiabilitiesCurrent", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/StatementGroupBalanceSheet" ], "xbrltype": "monetaryItemType" }, "snn_BankOverdraftsLiabilitiesMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This member stands for bank overdrafts.", "label": "Bank overdrafts." } } }, "localname": "BankOverdraftsLiabilitiesMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementFairValueDetails" ], "xbrltype": "domainItemType" }, "snn_BenefitsPaidDirectlyByGroupTaxesAndAdministrationCostsPaidFromSchemeAssetsNetDefinedBenefitLiabilityAsset": { "auth_ref": [], "calculation": { "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsReconciliationOfBenefitObligationsAndPensionAssetsDetails": { "order": 3.0, "parentTag": "ifrs-full_ContributionsToPlanNetDefinedBenefitLiabilityAsset", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The decrease (increase) in net defined benefit liability (asset) resulting from benefits paid directly by the Group, taxes and administration costs paid from scheme assets.", "label": "Benefits paid directly by the Group, taxes and administration costs paid from scheme assets net defined benefit liability asset", "terseLabel": "Benefits paid directly by the Group" } } }, "localname": "BenefitsPaidDirectlyByGroupTaxesAndAdministrationCostsPaidFromSchemeAssetsNetDefinedBenefitLiabilityAsset", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsReconciliationOfBenefitObligationsAndPensionAssetsDetails" ], "xbrltype": "monetaryItemType" }, "snn_BenefitsPaidNetDefinedBenefitLiabilityAsset": { "auth_ref": [], "calculation": { "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsReconciliationOfBenefitObligationsAndPensionAssetsDetails": { "order": 4.0, "parentTag": "ifrs-full_ContributionsToPlanNetDefinedBenefitLiabilityAsset", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The decrease (increase) in net defined benefit liability (asset) resulting from benefits paid.", "label": "Benefits paid net defined benefit liability asset", "terseLabel": "Benefits paid, taxes and administration costs paid from scheme assets" } } }, "localname": "BenefitsPaidNetDefinedBenefitLiabilityAsset", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsReconciliationOfBenefitObligationsAndPensionAssetsDetails" ], "xbrltype": "monetaryItemType" }, "snn_BilateralTermLoanFacilityMaturingMay2023Member": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Bilateral Term Loan Facility Maturing May 2023.", "label": "223 million bilateral, term loan facility" } } }, "localname": "BilateralTermLoanFacilityMaturingMay2023Member", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsLiquidityRiskExposuresDetails" ], "xbrltype": "domainItemType" }, "snn_BilateralTermLoanFacilityMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This member stands for bilateral term loan facility maturing in April 2023.", "label": "265 million bilateral, term loan facility" } } }, "localname": "BilateralTermLoanFacilityMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsLiquidityRiskExposuresDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementForeignExchangeExposuresDetails" ], "xbrltype": "domainItemType" }, "snn_BilateralTermLoanFacilityOneMaturingMay2022Member": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Bilateral Term Loan Facility One, Maturing May 2022.", "label": "269 million bilateral, term loan facility" } } }, "localname": "BilateralTermLoanFacilityOneMaturingMay2022Member", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsLiquidityRiskExposuresDetails" ], "xbrltype": "domainItemType" }, "snn_BioventusLlcMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This member stands for information related to the Bioventus, LLC investment.", "label": "Bioventus LLC" } } }, "localname": "BioventusLlcMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEarningsPerOrdinaryShareCalculationOfBasicDilutedAndAdjustedEarningsPerShareDetails", "http://www.smith-nephew.com/role/DisclosureInvestmentsInAssociatesAmountsRecognisedInBalanceSheetAndIncomeStatementDetails", "http://www.smith-nephew.com/role/DisclosureInvestmentsInAssociatesSummarisedBalanceSheetDetails", "http://www.smith-nephew.com/role/DisclosureInvestmentsInAssociatesSummarisedStatementOfComprehensiveIncomeDetails", "http://www.smith-nephew.com/role/DisclosurePostBalanceSheetEventsDetails" ], "xbrltype": "domainItemType" }, "snn_BondsIssuedIncludingContractualInterestPayments": { "auth_ref": [], "calculation": { "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsYearEndFinancialLiabilitiesByContractualMaturityDetails": { "order": 3.0, "parentTag": "snn_FinancialLiabilitiesUndiscountedCashFlows", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The amount of bonds issued by the entity, including contractual interest payments.", "label": "Bonds Issued Including Contractual Interest Payments", "terseLabel": "Corporate bond" } } }, "localname": "BondsIssuedIncludingContractualInterestPayments", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsYearEndFinancialLiabilitiesByContractualMaturityDetails" ], "xbrltype": "monetaryItemType" }, "snn_BorrowingsIncludingLeaseLiabilities": { "auth_ref": [], "calculation": { "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsBorrowingsAreRepayableDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The amount of outstanding funds including lease liabilities that the entity is obligated to repay.", "label": "Borrowings Including Lease Liabilities", "totalLabel": "Total borrowings" } } }, "localname": "BorrowingsIncludingLeaseLiabilities", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsBorrowingsAreRepayableDetails" ], "xbrltype": "monetaryItemType" }, "snn_BorrowingsSubjectToFinancialCovenants": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The amount of debt subject to financial covenants.", "label": "Borrowings Subject To Financial Covenants", "terseLabel": "Borrowings Subject To Financial Covenants" } } }, "localname": "BorrowingsSubjectToFinancialCovenants", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBasisOfPreparationDetails" ], "xbrltype": "monetaryItemType" }, "snn_BrainlabOrthopaedicJointReconstructionBusinessMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents information pertaining to brainlab orthopaedic joint reconstruction business.", "label": "Brainlab OJR" } } }, "localname": "BrainlabOrthopaedicJointReconstructionBusinessMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails" ], "xbrltype": "domainItemType" }, "snn_BusinessCombinationsCurrentPayables": { "auth_ref": [], "calculation": { "http://www.smith-nephew.com/role/DisclosureTradeAndOtherPayablesDetails": { "order": 3.0, "parentTag": "ifrs-full_TradeAndOtherCurrentPayables", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Represents payables related to business combinations, due within one year.", "label": "Business Combinations, Current Payables", "terseLabel": "Acquisition consideration" } } }, "localname": "BusinessCombinationsCurrentPayables", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTradeAndOtherPayablesDetails" ], "xbrltype": "monetaryItemType" }, "snn_BusinessCombinationsNoncurrentPayables": { "auth_ref": [], "calculation": { "http://www.smith-nephew.com/role/DisclosureTradeAndOtherPayablesDetails": { "order": 1.0, "parentTag": "ifrs-full_OtherNoncurrentPayables", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Represents liabilities incurred in connection with business combinations, payable after one year.", "label": "Business Combinations, Noncurrent Payables", "terseLabel": "Acquisition consideration" } } }, "localname": "BusinessCombinationsNoncurrentPayables", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTradeAndOtherPayablesDetails" ], "xbrltype": "monetaryItemType" }, "snn_CancellationOfTreasurySharesNumberOfShares": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Number of treasury shares cancelled during the period.", "label": "Cancellation Of Treasury Shares Number Of Shares", "negatedTerseLabel": "Shares cancelled (in shares)" } } }, "localname": "CancellationOfTreasurySharesNumberOfShares", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEquityShareCapitalDetails", "http://www.smith-nephew.com/role/DisclosureEquityTreasurySharesDetails" ], "xbrltype": "sharesItemType" }, "snn_CashAtBankMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This member stands for cash at bank.", "label": "Cash" } } }, "localname": "CashAtBankMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashFlowStatementAnalysisOfNetDebtDetails" ], "xbrltype": "domainItemType" }, "snn_CashDistributionReceivedFromAssociate": { "auth_ref": [], "calculation": { "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement": { "order": 4.0, "parentTag": "ifrs-full_CashFlowsFromUsedInInvestingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Cash distribution received from associate.", "label": "Cash Distribution Received from Associate", "terseLabel": "Distribution from associate" } } }, "localname": "CashDistributionReceivedFromAssociate", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement" ], "xbrltype": "monetaryItemType" }, "snn_CeterixOrthopaedicsMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Information pertaining to Ceterix Orthopaedics, Inc.", "label": "Ceterix Orthopaedics" } } }, "localname": "CeterixOrthopaedicsMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails" ], "xbrltype": "domainItemType" }, "snn_ChargeRelatingToLegalAndOtherItems": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The amount represents the charge relating to legal and other items.", "label": "Charge Relating to Legal and Other Items", "terseLabel": "Charge relating to legal and other items" } } }, "localname": "ChargeRelatingToLegalAndOtherItems", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureOperatingProfitDetails" ], "xbrltype": "monetaryItemType" }, "snn_CommittedBorrowingFacilitiesMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents information pertaining to committed borrowing facilities.", "label": "Committed facilities" } } }, "localname": "CommittedBorrowingFacilitiesMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBasisOfPreparationDetails", "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsLiquidityAndCapitalResourcesDetails", "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsLiquidityRiskExposuresDetails" ], "xbrltype": "domainItemType" }, "snn_ComputerSoftwareAndIntangibleAssetsUnderDevelopmentMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This member stands for intangible assets representing assets under development and computer software.", "label": "Software and Assets in course of construction" } } }, "localname": "ComputerSoftwareAndIntangibleAssetsUnderDevelopmentMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureIntangibleAssetsDetails" ], "xbrltype": "domainItemType" }, "snn_ConsiderationTransferredNetOfCashAcquiredAcquisitionDateFairValue": { "auth_ref": [], "calculation": { "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The fair value, at acquisition date, of the consideration transferred in a business combination, net of cash acquired.", "label": "Consideration Transferred, Net of Cash Acquired, Acquisition Date Fair Value", "totalLabel": "Consideration (net of cash acquired)" } } }, "localname": "ConsiderationTransferredNetOfCashAcquiredAcquisitionDateFairValue", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails" ], "xbrltype": "monetaryItemType" }, "snn_ContributionToPlanFunding": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of contribution made to the plan as per the agreement between the Trustees and the Group.", "label": "Contribution to the plan, funding", "terseLabel": "Contribution to the plan" } } }, "localname": "ContributionToPlanFunding", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsSensitivityAnalysisDetails" ], "xbrltype": "monetaryItemType" }, "snn_ContributionToPlanSupplementaryPaymentsIncludedInFunding": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of supplementary payments included in contribution made to the plan as per the agreement between the Trustees and the Group.", "label": "Contribution to the plan, supplementary payments included in funding", "terseLabel": "Supplementary payments" } } }, "localname": "ContributionToPlanSupplementaryPaymentsIncludedInFunding", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsSensitivityAnalysisDetails" ], "xbrltype": "monetaryItemType" }, "snn_CorporateBondIssuanceExpense": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The amount of expenses incurred on issuance of corporate bond during the reporting period.", "label": "Corporate Bond Issuance Expense", "terseLabel": "Corporate bond issuance expense" } } }, "localname": "CorporateBondIssuanceExpense", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashFlowStatementAnalysisOfNetDebtDetails", "http://www.smith-nephew.com/role/DisclosureCashFlowStatementReconciliationOfNetCashFlowToMovementInNetDebtDetails" ], "xbrltype": "monetaryItemType" }, "snn_CorporateBondMaturingOctober2030Member": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Corporate Bond Maturing October 2030 Member.", "label": "2.032% Corporate Bond Maturing October 2030" } } }, "localname": "CorporateBondMaturingOctober2030Member", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsLiquidityRiskExposuresDetails" ], "xbrltype": "domainItemType" }, "snn_CorporateBondsAmountContributedToFairValueOfPlanAssets": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The amount that corporate bonds constitutes of the fair value of defined benefit plan assets.", "label": "Corporate bonds, amount contributed to fair value of plan assets", "terseLabel": "Corporate bonds" } } }, "localname": "CorporateBondsAmountContributedToFairValueOfPlanAssets", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsPlanAssetsDetails" ], "xbrltype": "monetaryItemType" }, "snn_CorporateBondsMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents about corporate bonds.", "label": "Corporate bond" } } }, "localname": "CorporateBondsMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementFairValueDetails" ], "xbrltype": "domainItemType" }, "snn_CorporateCosts": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The amount of corporate costs not allocated to operating segments.", "label": "Corporate Costs", "terseLabel": "Corporate costs" } } }, "localname": "CorporateCosts", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationTradingAndOperatingProfitByBusinessSegmentDetails" ], "xbrltype": "monetaryItemType" }, "snn_CostOfInventoriesResultingFromWriteOffs": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The amount of inventories recognised as an expense resulting from inventory write-offs.", "label": "Cost of inventories resulting from write-offs", "terseLabel": "Inventories recognised as an expense within cost of goods sold resulting from inventory write-offs" } } }, "localname": "CostOfInventoriesResultingFromWriteOffs", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureInventoriesDetails" ], "xbrltype": "monetaryItemType" }, "snn_CostRecognisedInIncomeStatementNetDefinedBenefitLiabilityAsset": { "auth_ref": [], "calculation": { "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsReconciliationOfBenefitObligationsAndPensionAssetsDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Total cost recognised in income statement on the net defined benefit liability (asset).", "label": "Cost Recognised in Income Statement, Net Defined Benefit Liability (Asset)", "negatedTotalLabel": "Costs recognised in Income statement" } } }, "localname": "CostRecognisedInIncomeStatementNetDefinedBenefitLiabilityAsset", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsReconciliationOfBenefitObligationsAndPensionAssetsDetails" ], "xbrltype": "monetaryItemType" }, "snn_CumulativeAdjustmentsToNetAssetsOfAssociatesAccountedForUsingEquityMethod": { "auth_ref": [], "calculation": { "http://www.smith-nephew.com/role/DisclosureInvestmentsInAssociatesSummarisedBalanceSheetDetails": { "order": 2.0, "parentTag": "ifrs-full_InvestmentsInAssociatesAccountedForUsingEquityMethod", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Adjustments to align the reported amount of net assets of associates accounted for using equity method with the entity's policy for reporting.", "label": "Cumulative Adjustments to Net Assets of Associates Accounted for Using Equity Method", "terseLabel": "Group adjustments" } } }, "localname": "CumulativeAdjustmentsToNetAssetsOfAssociatesAccountedForUsingEquityMethod", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureInvestmentsInAssociatesSummarisedBalanceSheetDetails" ], "xbrltype": "monetaryItemType" }, "snn_CurrentFinishedGoodsAndInventoriesHeldForSale": { "auth_ref": [], "calculation": { "http://www.smith-nephew.com/role/DisclosureInventoriesDetails": { "order": 3.0, "parentTag": "ifrs-full_Inventories", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "A classification of current inventory representing the amount of finished goods and inventories held for sale in the ordinary course of business.", "label": "Current finished goods and inventories held for sale", "terseLabel": "Finished goods and goods for resale" } } }, "localname": "CurrentFinishedGoodsAndInventoriesHeldForSale", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureInventoriesDetails" ], "xbrltype": "monetaryItemType" }, "snn_CurrentTaxEffectOfForeignTaxRates": { "auth_ref": [], "calculation": { "http://www.smith-nephew.com/role/DisclosureTaxationTaxationAttributableToGroupDetails": { "order": 2.0, "parentTag": "ifrs-full_CurrentTaxExpenseIncome", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The amount of income taxes payable (recoverable) in respect of the taxable profit (tax loss) in all countries other than the UK.", "label": "Current Tax Effect of Foreign Tax Rates", "terseLabel": "Overseas tax" } } }, "localname": "CurrentTaxEffectOfForeignTaxRates", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationTaxationAttributableToGroupDetails" ], "xbrltype": "monetaryItemType" }, "snn_CurrentTaxExpenseIncomeAtApplicableTaxRate": { "auth_ref": [], "calculation": { "http://www.smith-nephew.com/role/DisclosureTaxationTaxationAttributableToGroupDetails": { "order": 1.0, "parentTag": "ifrs-full_CurrentTaxExpenseIncome", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The amount of income taxes payable (recoverable) in respect of the taxable profit (tax loss) in the UK.", "label": "Current Tax Expense Income At Applicable Tax Rate", "terseLabel": "UK corporation tax" } } }, "localname": "CurrentTaxExpenseIncomeAtApplicableTaxRate", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationTaxationAttributableToGroupDetails" ], "xbrltype": "monetaryItemType" }, "snn_CurrentTaxLiabilitiesUncertainTaxPositionsCurrent": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The current amount of current tax liabilities associated with uncertain tax positions.", "label": "Current tax liabilities, Uncertain Tax Positions, Current", "terseLabel": "Current tax payable, uncertain tax positions" } } }, "localname": "CurrentTaxLiabilitiesUncertainTaxPositionsCurrent", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationFactorsAffectingFutureTaxChargesDetails" ], "xbrltype": "monetaryItemType" }, "snn_DeferredConsiderationRecognisedAsOfAcquisitionDate": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Deferred consideration at acquisition date in a business combination.", "label": "Deferred consideration recognised as of acquisition date", "terseLabel": "Deferred consideration" } } }, "localname": "DeferredConsiderationRecognisedAsOfAcquisitionDate", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails" ], "xbrltype": "monetaryItemType" }, "snn_DeferredSharesMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This member stands for deferred shares which are issued in order to comply with English Company law.", "label": "Deferred Shares" } } }, "localname": "DeferredSharesMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEquityShareCapitalDetails" ], "xbrltype": "domainItemType" }, "snn_DeferredTaxAssetsBadDebtProvisions": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from bad debt provisions.", "label": "Deferred Tax Assets, Bad Debt Provisions", "terseLabel": "Deferred tax Assets, bad debt provisions" } } }, "localname": "DeferredTaxAssetsBadDebtProvisions", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationDeferredTaxationDetails" ], "xbrltype": "monetaryItemType" }, "snn_DeferredTaxAssetsProvisionsAndOtherShortTermTemporaryDifferences": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from provisions and other short term temporary differences.", "label": "Deferred Tax Assets, Provisions and Other Short Term Temporary Differences", "terseLabel": "Deferred tax assets, provisions and other short-term temporary differences" } } }, "localname": "DeferredTaxAssetsProvisionsAndOtherShortTermTemporaryDifferences", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationDeferredTaxationDetails" ], "xbrltype": "monetaryItemType" }, "snn_DeferredTaxAssetsRecoveryPeriod": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Recovery period for deferred tax assets.", "label": "Deferred Tax Assets Recovery Period", "terseLabel": "Recovery period for deferred tax assets" } } }, "localname": "DeferredTaxAssetsRecoveryPeriod", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationDeferredTaxationDetails" ], "xbrltype": "durationItemType" }, "snn_DeferredTaxAssetsTaxCreditCarryforwardsResearchAndDevelopment": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount before allocation of valuation allowances of deferred tax asset attributable to deductible research and development tax credit carryforwards.", "label": "Deferred Tax Assets, Tax Credit Carryforwards, Research and Development", "terseLabel": "Deferred tax assets, research and development tax credit" } } }, "localname": "DeferredTaxAssetsTaxCreditCarryforwardsResearchAndDevelopment", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationDeferredTaxationDetails" ], "xbrltype": "monetaryItemType" }, "snn_DeferredTaxExpenseIncomeOfPriorPeriodsRecognisedInProfitOrLoss": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The amount of tax expense or income relating to changes in deferred tax liabilities and deferred tax assets of prior periods, recognised in profit or loss.", "label": "Deferred Tax Expense Income of Prior Periods Recognised in Profit or Loss", "negatedLabel": "Movement in income statement - prior years" } } }, "localname": "DeferredTaxExpenseIncomeOfPriorPeriodsRecognisedInProfitOrLoss", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationDeferredTaxationDetails" ], "xbrltype": "monetaryItemType" }, "snn_DeferredTaxExpenseIncomeRelatingToTaxRateChangesOrImpositionOfNewTaxesImpactOnDeferredTaxAssetsAndLiabilities": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The amount of deferred tax expense or income relating to tax rate changes or the imposition of new taxes impact on deferred tax assets and liabilities.", "label": "Deferred Tax Expense Income Relating To Tax Rate Changes Or Imposition Of New Taxes, Impact On Deferred Tax Assets And Liabilities", "terseLabel": "Net impact to deferred tax assets and liabilities" } } }, "localname": "DeferredTaxExpenseIncomeRelatingToTaxRateChangesOrImpositionOfNewTaxesImpactOnDeferredTaxAssetsAndLiabilities", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationFactorsAffectingFutureTaxChargesDetails" ], "xbrltype": "monetaryItemType" }, "snn_DefinedBenefitObligationAtPresentValueFundedPortion": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The present value of funded plan, after deducting any plan assets, of expected future payments required to settle the obligation resulting from employee service in the current and prior periods.", "label": "Defined Benefit Obligation At Present Value Funded Portion", "terseLabel": "Funded" } } }, "localname": "DefinedBenefitObligationAtPresentValueFundedPortion", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsDetails" ], "xbrltype": "monetaryItemType" }, "snn_DefinedBenefitObligationAtPresentValueUnfundedPortion": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The present value of unfunded plan of expected future payments required to settle the obligation resulting from employee service in the current and prior periods.", "label": "Defined Benefit Obligation At Present Value Unfunded Portion", "terseLabel": "Unfunded" } } }, "localname": "DefinedBenefitObligationAtPresentValueUnfundedPortion", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsDetails" ], "xbrltype": "monetaryItemType" }, "snn_DefinedBenefitPensionPlansMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This member stands for Pension plans.", "label": "Pension plans" } } }, "localname": "DefinedBenefitPensionPlansMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsDetails", "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsPlanAssetsDetails", "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsPrincipalActuarialAssumptionsDetails", "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsReconciliationOfBenefitObligationsAndPensionAssetsDetails", "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsSensitivityAnalysisDetails" ], "xbrltype": "domainItemType" }, "snn_DefinedBenefitPlansEntitlementToRetirementBenefitAsPercentageOfFinalSalary": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Percentage of entitlement to retirement benefit as percentage of final salary on attainment of retirement age by the defined benefit plans.", "label": "Defined benefit plans entitlement to retirement benefit as percentage of final salary", "terseLabel": "Retirement benefits as a percentage of final salary" } } }, "localname": "DefinedBenefitPlansEntitlementToRetirementBenefitAsPercentageOfFinalSalary", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsDetails" ], "xbrltype": "percentItemType" }, "snn_DefinedContributionPlanContributionPayableToPlan": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of contribution payable outstanding to the plan.", "label": "Defined contribution plan, contribution payable to the plan", "terseLabel": "Outstanding payments" } } }, "localname": "DefinedContributionPlanContributionPayableToPlan", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsPlanAssetsDetails" ], "xbrltype": "monetaryItemType" }, "snn_DeprecatedCurrentPrepaymentsAndCurrentAccruedIncome": { "auth_ref": [], "calculation": { "http://www.smith-nephew.com/role/DisclosureTradeAndOtherReceivablesDetails": { "order": 4.0, "parentTag": "ifrs-full_TradeAndOtherCurrentReceivables", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "label": "Current prepayments and current accrued income", "terseLabel": "Prepayments" } } }, "localname": "DeprecatedCurrentPrepaymentsAndCurrentAccruedIncome", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTradeAndOtherReceivablesDetails" ], "xbrltype": "monetaryItemType" }, "snn_DerivativeFinancialLiabilitiesUndiscountedCashInflows": { "auth_ref": [], "calculation": { "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsYearEndFinancialLiabilitiesByContractualMaturityDetails": { "order": 4.0, "parentTag": "snn_FinancialLiabilitiesUndiscountedCashFlows", "weight": -1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The amount of contractual undiscounted cash inflows in relation to derivative financial liabilities.", "label": "Derivative Financial Liabilities Undiscounted Cash Inflows", "terseLabel": "Current swaps/forward foreign exchange contracts - inflow" } } }, "localname": "DerivativeFinancialLiabilitiesUndiscountedCashInflows", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsYearEndFinancialLiabilitiesByContractualMaturityDetails" ], "xbrltype": "monetaryItemType" }, "snn_DerivativeFinancialLiabilitiesUndiscountedCashOutflows": { "auth_ref": [], "calculation": { "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsYearEndFinancialLiabilitiesByContractualMaturityDetails": { "order": 5.0, "parentTag": "snn_FinancialLiabilitiesUndiscountedCashFlows", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The amount of contractual undiscounted cash outflows in relation to derivative financial liabilities.", "label": "Derivative Financial Liabilities Undiscounted Cash Outflows", "terseLabel": "Current swaps/forward foreign exchange contracts - outflow" } } }, "localname": "DerivativeFinancialLiabilitiesUndiscountedCashOutflows", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsYearEndFinancialLiabilitiesByContractualMaturityDetails" ], "xbrltype": "monetaryItemType" }, "snn_DescriptionOfAccountingPolicyForImpairmentOfIntangibleAssetsPolicyTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The description of the entity's accounting policy for impairment of intangible assets.", "label": "Description of Accounting Policy for Impairment of Intangible Assets [Policy Text Block]", "terseLabel": "IMPAIRMENT OF INTANGIBLE ASSETS" } } }, "localname": "DescriptionOfAccountingPolicyForImpairmentOfIntangibleAssetsPolicyTextBlock", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "snn_DescriptionOfAccountingPolicyForProvisionsContingentLiabilitiesAndContingentAssetsPolicyTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The description of the entity's accounting policy for provisions, contingent liabilities and contingent assets.", "label": "Description Of Accounting Policy For Provisions, Contingent Liabilities And Contingent Assets [Policy Text Block]", "terseLabel": "PROVISIONS AND CONTINGENCIES" } } }, "localname": "DescriptionOfAccountingPolicyForProvisionsContingentLiabilitiesAndContingentAssetsPolicyTextBlock", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "snn_DescriptionOfIncreaseInDiscountRatesAppliedToCashFlowProjections": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The increase in discount rate applied to cash flow projections for a cash-generating unit", "label": "Description of Increase in Discount Rates Applied to Cash Flow Projections", "terseLabel": "Increase in discount rates" } } }, "localname": "DescriptionOfIncreaseInDiscountRatesAppliedToCashFlowProjections", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureGoodwillDetails" ], "xbrltype": "percentItemType" }, "snn_DescriptionOfNewAccountingStandardsPolicyTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Description of the entity's policy for new account standards.", "label": "Description of New Accounting Standards [Policy Text Block]", "terseLabel": "NEW ACCOUNTING STANDARDS" } } }, "localname": "DescriptionOfNewAccountingStandardsPolicyTextBlock", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "snn_DisclosureOfBasisOfPreparationAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "No definition.", "label": "BASIS OF PREPARATION" } } }, "localname": "DisclosureOfBasisOfPreparationAbstract", "nsuri": "http://www.smith-nephew.com/20211231", "xbrltype": "stringItemType" }, "snn_DisclosureOfBorrowingRepayableTableTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The disclosure of borrowings repayable.", "label": "Disclosure of Borrowing Repayable [ table text block]", "terseLabel": "Schedule of borrowings repayable" } } }, "localname": "DisclosureOfBorrowingRepayableTableTextBlock", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsTables" ], "xbrltype": "textBlockItemType" }, "snn_DisclosureOfBusinessCombinationsAndDisposalsTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for business combinations and disposals.", "label": "Disclosure of business combinations and Disposals [text block]", "terseLabel": "ACQUISITIONS" } } }, "localname": "DisclosureOfBusinessCombinationsAndDisposalsTextBlock", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureAcquisitions" ], "xbrltype": "textBlockItemType" }, "snn_DisclosureOfBusinessCombinationsTableTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Disclosure of business combinations, including fair value of assets acquired and liabilities assumed.", "label": "Disclosure of Business Combinations [Table Text Block]", "terseLabel": "Schedule of fair value of assets acquired and liabilities assumed" } } }, "localname": "DisclosureOfBusinessCombinationsTableTextBlock", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureAcquisitionsTables" ], "xbrltype": "textBlockItemType" }, "snn_DisclosureOfCashFlowStatementAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "No definition available.", "label": "CASH FLOW STATEMENT" } } }, "localname": "DisclosureOfCashFlowStatementAbstract", "nsuri": "http://www.smith-nephew.com/20211231", "xbrltype": "stringItemType" }, "snn_DisclosureOfCashFlowStatementLineItems": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.", "label": "Disclosure Of Cash Flow Statement [line items]" } } }, "localname": "DisclosureOfCashFlowStatementLineItems", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashFlowStatementAnalysisOfNetDebtDetails", "http://www.smith-nephew.com/role/DisclosureCashFlowStatementCashOutflowsInflowsArisingFromFinancingActivitiesDetails" ], "xbrltype": "stringItemType" }, "snn_DisclosureOfCashFlowStatementTable": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Schedule disclosing information related to the cash flow statement.", "label": "Disclosure Of Cash Flow Statement [Table]" } } }, "localname": "DisclosureOfCashFlowStatementTable", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashFlowStatementAnalysisOfNetDebtDetails" ], "xbrltype": "stringItemType" }, "snn_DisclosureOfCashFlowStatementTableTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The disclosure of cash flow statement.", "label": "Disclosure Of Cash Flow Statement Table Text Block", "terseLabel": "Schedule of cash flow statement" } } }, "localname": "DisclosureOfCashFlowStatementTableTextBlock", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashFlowStatementTables" ], "xbrltype": "textBlockItemType" }, "snn_DisclosureOfDetailedInformationAboutBusinessCombinationAndDisposalsAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "No definition available.", "label": "ACQUISITIONS" } } }, "localname": "DisclosureOfDetailedInformationAboutBusinessCombinationAndDisposalsAbstract", "nsuri": "http://www.smith-nephew.com/20211231", "xbrltype": "stringItemType" }, "snn_DisclosureOfDetailedInformationsAboutBasisOfPreparationLineItems": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Line items represent concepts included in a table. These concepts are used to disclose basis of presentation associated with domain members defined in one or many axes of the table.", "label": "Disclosure of detailed informations about basis of preparation [line items]" } } }, "localname": "DisclosureOfDetailedInformationsAboutBasisOfPreparationLineItems", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBasisOfPreparationDetails" ], "xbrltype": "stringItemType" }, "snn_DisclosureOfDetailedInformationsAboutBasisOfPreparationTable": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Schedule disclosing information related to details of basis of preparation.", "label": "Disclosure of detailed informations about basis of preparation [Table]" } } }, "localname": "DisclosureOfDetailedInformationsAboutBasisOfPreparationTable", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBasisOfPreparationDetails" ], "xbrltype": "stringItemType" }, "snn_DisclosureOfDetailsOfTradeAndOtherPayablesTableTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The detailed disclosure of trade and other payables.", "label": "Disclosure Of Details Of Trade And Other Payables [Table Text Block]", "terseLabel": "Schedule of trade and other payables" } } }, "localname": "DisclosureOfDetailsOfTradeAndOtherPayablesTableTextBlock", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTradeAndOtherPayablesTables" ], "xbrltype": "textBlockItemType" }, "snn_DisclosureOfDetailsOfTradeAndOtherReceivablesExplanatory": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The detailed disclosure of trade and other receivables.", "label": "Disclosure Of Details Of Trade And Other Receivables [Table Text Block]", "terseLabel": "Schedule of trade and other receivables" } } }, "localname": "DisclosureOfDetailsOfTradeAndOtherReceivablesExplanatory", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTradeAndOtherReceivablesTables" ], "xbrltype": "textBlockItemType" }, "snn_DisclosureOfInformationByGeographicLocationTableTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The disclosure of information by geographic location.", "label": "Disclosure of Information by Geographic Location [Table Text Block]", "terseLabel": "Assets and liabilities by geographic location" } } }, "localname": "DisclosureOfInformationByGeographicLocationTableTextBlock", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationTables" ], "xbrltype": "textBlockItemType" }, "snn_DisclosureOfInterestAndOtherFinanceCostsAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "No definition available.", "label": "INTEREST AND OTHER FINANCE COSTS" } } }, "localname": "DisclosureOfInterestAndOtherFinanceCostsAbstract", "nsuri": "http://www.smith-nephew.com/20211231", "xbrltype": "stringItemType" }, "snn_DisclosureOfInterestAndOtherFinanceCostsTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The entire disclosure of interest and other finance costs.", "label": "Disclosure of Interest And Other Finance Costs [Text block]", "terseLabel": "INTEREST AND OTHER FINANCE COSTS" } } }, "localname": "DisclosureOfInterestAndOtherFinanceCostsTextBlock", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureInterestAndOtherFinanceCosts" ], "xbrltype": "textBlockItemType" }, "snn_DisclosureOfInvestmentsAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "N/A", "label": "INVESTMENTS" } } }, "localname": "DisclosureOfInvestmentsAbstract", "nsuri": "http://www.smith-nephew.com/20211231", "xbrltype": "stringItemType" }, "snn_DisclosureOfLifeExpectanciesUnderlyingValuesOfObligationsInDefinedBenefitPlansTableTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The disclosure of current life expectancies underlying the values of the obligations in the defined benefit plans.", "label": "Disclosure of Life Expectancies Underlying Values of Obligations in Defined Benefit Plans [Table Text Block]", "terseLabel": "Current longevities underlying the values of the obligations in the defined benefit plans" } } }, "localname": "DisclosureOfLifeExpectanciesUnderlyingValuesOfObligationsInDefinedBenefitPlansTableTextBlock", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsTable" ], "xbrltype": "textBlockItemType" }, "snn_DisclosureOfMaturityAnalysisOfFinancialLiabilitiesTableTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The disclosure of year end financial liabilities by contractual maturity.", "label": "Disclosure Of Maturity Analysis Of Financial Liabilities [Table text block]", "terseLabel": "Schedule of year end financial liabilities by contractual maturity" } } }, "localname": "DisclosureOfMaturityAnalysisOfFinancialLiabilitiesTableTextBlock", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsTables" ], "xbrltype": "textBlockItemType" }, "snn_DisclosureOfMovementInLossAllowanceReceivablesExplanatoryTableTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Schedule of movements in loss allowance for receivables.", "label": "Disclosure of Movement in Loss Allowance, Receivables Explanatory [Table Text Block]", "terseLabel": "Schedule of movements in loss allowance" } } }, "localname": "DisclosureOfMovementInLossAllowanceReceivablesExplanatoryTableTextBlock", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTradeAndOtherReceivablesTables" ], "xbrltype": "textBlockItemType" }, "snn_DisclosureOfNetDebtTableTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The disclosure of net debt.", "label": "Disclosure of Net Debt [table text block]", "terseLabel": "Schedule of net debt" } } }, "localname": "DisclosureOfNetDebtTableTextBlock", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsTables" ], "xbrltype": "textBlockItemType" }, "snn_DisclosureOfNetTradeReceivablesByCurrencyExplanatory": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The detailed disclosure of net trade receivables by currency.", "label": "Disclosure Of Net Trade Receivables By Currency [Table Text Block]", "terseLabel": "Schedule of trade receivables denominated by currency" } } }, "localname": "DisclosureOfNetTradeReceivablesByCurrencyExplanatory", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTradeAndOtherReceivablesTables" ], "xbrltype": "textBlockItemType" }, "snn_DisclosureOfNetTradeReceivablesExplanatory": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The detailed disclosure of net trade receivables.", "label": "Disclosure Of Net Trade Receivables [Table Text Block]", "terseLabel": "Schedule of trade receivables - net" } } }, "localname": "DisclosureOfNetTradeReceivablesExplanatory", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTradeAndOtherReceivablesTables" ], "xbrltype": "textBlockItemType" }, "snn_DisclosureOfOperatingProfitLineItems": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.", "label": "Disclosure of operating profit [line items]" } } }, "localname": "DisclosureOfOperatingProfitLineItems", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureOperatingProfitInformationAboutNatureAndCostOfServicesDetails" ], "xbrltype": "stringItemType" }, "snn_DisclosureOfOperatingProfitTable": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Schedule disclosing information related to operating profit.", "label": "Disclosure of operating profit [table]" } } }, "localname": "DisclosureOfOperatingProfitTable", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureOperatingProfitInformationAboutNatureAndCostOfServicesDetails" ], "xbrltype": "stringItemType" }, "snn_DisclosureOfPensionPlanRiskTableTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The disclosure of pension plan risk.", "label": "Disclosure of pension plan risk [table text block]", "terseLabel": "Risk" } } }, "localname": "DisclosureOfPensionPlanRiskTableTextBlock", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsTable" ], "xbrltype": "textBlockItemType" }, "snn_DisclosureOfPrincipalActuarialAssumptionsTableTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The disclosure of principal actuarial assumptions.", "label": "Disclosure of principal actuarial assumptions [table text block]", "terseLabel": "Principal actuarial assumptions" } } }, "localname": "DisclosureOfPrincipalActuarialAssumptionsTableTextBlock", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsTable" ], "xbrltype": "textBlockItemType" }, "snn_DisclosureOfProvisionsAndContingentLiabilitiesAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "N/A", "label": "PROVISIONS AND CONTINGENCIES" } } }, "localname": "DisclosureOfProvisionsAndContingentLiabilitiesAbstract", "nsuri": "http://www.smith-nephew.com/20211231", "xbrltype": "stringItemType" }, "snn_DisclosureOfSegmentsProfitReconciliationExplanatory": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The disclosure of reconciliation of business segment operating profit to business segment trading profit.", "label": "Disclosure Of Segments Profit Reconciliation Explanatory", "terseLabel": "Trading profit reconciles to operating profit" } } }, "localname": "DisclosureOfSegmentsProfitReconciliationExplanatory", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationTables" ], "xbrltype": "textBlockItemType" }, "snn_DisclosureOfSegmentsRevenueReconciliationExplanatory": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The disclosure of reconciliation of segments revenue.", "label": "Segment revenue reconciles to statutory revenues and other income from continuing operations", "terseLabel": "Segment revenue reconciles to statutory revenues from continuing operations" } } }, "localname": "DisclosureOfSegmentsRevenueReconciliationExplanatory", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationTables" ], "xbrltype": "textBlockItemType" }, "snn_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsAndLiabilitiesTableTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of significant inputs for which market data are not available and that are developed using the best information available about the assumptions that market participants would use when measuring the fair value of assets and liabilities.", "label": "Disclosure Of Significant Unobservable Inputs Used In Fair Value Measurement Of Assets and Liabilities [Table Text Block]", "terseLabel": "Schedule of movements for financial instruments measured using Level 3 valuation methods" } } }, "localname": "DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsAndLiabilitiesTableTextBlock", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementTable" ], "xbrltype": "textBlockItemType" }, "snn_DisclosureOfTradeAndOtherPayablesLineItems": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.", "label": "Disclosure Of Trade And Other Payables [Line Items]" } } }, "localname": "DisclosureOfTradeAndOtherPayablesLineItems", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTradeAndOtherPayablesDetails" ], "xbrltype": "stringItemType" }, "snn_DisclosureOfTradeAndOtherPayablesTable": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Schedule of trade and other payables.", "label": "Disclosure Of Trade And Other Payables [Table]" } } }, "localname": "DisclosureOfTradeAndOtherPayablesTable", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTradeAndOtherPayablesDetails" ], "xbrltype": "stringItemType" }, "snn_DisclosureOfTradeAndOtherReceivablesLineItems": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.", "label": "Disclosure Of Trade And Other Receivables [Line Items]" } } }, "localname": "DisclosureOfTradeAndOtherReceivablesLineItems", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTradeAndOtherReceivablesTradeReceivablesDenominatedInMajorCurrenciesDetails", "http://www.smith-nephew.com/role/DisclosureTradeAndOtherReceivablesTradeReceivablesPastDueDetails" ], "xbrltype": "stringItemType" }, "snn_DisclosureOfTradeAndOtherReceivablesTable": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Schedule disclosing information related to trade and other receivables.", "label": "Disclosure Of Trade And Other Receivables [Table]" } } }, "localname": "DisclosureOfTradeAndOtherReceivablesTable", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTradeAndOtherReceivablesTradeReceivablesDenominatedInMajorCurrenciesDetails", "http://www.smith-nephew.com/role/DisclosureTradeAndOtherReceivablesTradeReceivablesPastDueDetails" ], "xbrltype": "stringItemType" }, "snn_DiscountUnwindFairValueMeasurementLiabilities": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The increase in the fair value measurement of liabilities resulting from discount unwind of those liabilities.", "label": "Discount Unwind, Fair Value Measurement, Liabilities", "negatedLabel": "Discount unwind" } } }, "localname": "DiscountUnwindFairValueMeasurementLiabilities", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementMovementOfFinancialInstrumentsDetails" ], "xbrltype": "monetaryItemType" }, "snn_DisposalsPropertyPlantAndEquipmentIncludingTransfers": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The decrease (increase) in property, plant and equipment resulting from disposals, including transfers.", "label": "Disposals, property, plant and equipment, Including Transfers", "negatedLabel": "Disposals" } } }, "localname": "DisposalsPropertyPlantAndEquipmentIncludingTransfers", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosurePropertyPlantAndEquipmentDetails" ], "xbrltype": "monetaryItemType" }, "snn_DistributableReserves": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The amount of distributable reserves that approximate the balance of profit and loss account reserve, less treasury shares and exchange reserves.", "label": "Distributable Reserves", "terseLabel": "Distributable reserves" } } }, "localname": "DistributableReserves", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEquityDividendsDetails" ], "xbrltype": "monetaryItemType" }, "snn_EarNoseAndThroatMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This member stands for the Ear, Nose and Throat product line.", "label": "ENT (Ear, Nose and Throat)" } } }, "localname": "EarNoseAndThroatMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationDetails" ], "xbrltype": "domainItemType" }, "snn_EmergingMarketsMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This member stands for emerging markets.", "label": "Emerging Markets" } } }, "localname": "EmergingMarketsMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationDetails" ], "xbrltype": "domainItemType" }, "snn_EmployeesShareTrustMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This element stands for shares held in Employees' Share Trust.", "label": "Employees Share Trust" } } }, "localname": "EmployeesShareTrustMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEquityTreasurySharesDetails" ], "xbrltype": "domainItemType" }, "snn_EngageSurgicalMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Information pertaining to Engage Surgical.", "label": "Engage Surgical" } } }, "localname": "EngageSurgicalMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosurePostBalanceSheetEventsDetails" ], "xbrltype": "domainItemType" }, "snn_EquityPolicyPolicyTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The description of the entity's accounting policy for equity.", "label": "Equity, Policy [Policy Text Block]", "terseLabel": "EQUITY" } } }, "localname": "EquityPolicyPolicyTextBlock", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "snn_EstablishedMarketsMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This member stands for established markets.", "label": "Established Markets" } } }, "localname": "EstablishedMarketsMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationDetails" ], "xbrltype": "domainItemType" }, "snn_EuroTermLoansMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Euro Term Loans Member.", "label": "Euro term loans" } } }, "localname": "EuroTermLoansMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsLiquidityRiskExposuresDetails" ], "xbrltype": "domainItemType" }, "snn_ExpenseOfRestructuringActivitiesIncludedInAdministrativeExpenses": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The amount of restructuring and rationalisation expenses included in administrative expenses.", "label": "Expense of restructuring activities included in administrative expenses", "terseLabel": "Restructuring and rationalisation expenses included in administrative expenses" } } }, "localname": "ExpenseOfRestructuringActivitiesIncludedInAdministrativeExpenses", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureOperatingProfitDetails" ], "xbrltype": "monetaryItemType" }, "snn_ExpenseOfRestructuringActivitiesIncludedInCostOfSales": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The amount of expense of restructuring activities included in cost of sales.", "label": "Expense of restructuring activities included in cost of sales", "terseLabel": "Restructuring and rationalisation expenses included in cost of goods sold" } } }, "localname": "ExpenseOfRestructuringActivitiesIncludedInCostOfSales", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureOperatingProfitDetails" ], "xbrltype": "monetaryItemType" }, "snn_ExtremityOrthopaedicsMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "N/a", "label": "Extremity Orthopaedics" } } }, "localname": "ExtremityOrthopaedicsMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails", "http://www.smith-nephew.com/role/DisclosureAcquisitionsTables" ], "xbrltype": "domainItemType" }, "snn_FairValueOfGoodwill": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The amount of fair value of goodwill.", "label": "Fair Value Of Goodwill", "terseLabel": "Fair value Of goodwill" } } }, "localname": "FairValueOfGoodwill", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails" ], "xbrltype": "monetaryItemType" }, "snn_FinancialAssetsCashMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This member stands for cash financial assets.", "label": "Cash at bank" } } }, "localname": "FinancialAssetsCashMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementCreditRiskExposuresDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementFairValueDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementInterestBearingAssetsDetails" ], "xbrltype": "domainItemType" }, "snn_FinancialAssetsInvestmentsMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This member stands for financial assets, investments.", "label": "Investments." } } }, "localname": "FinancialAssetsInvestmentsMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementFairValueDetails" ], "xbrltype": "domainItemType" }, "snn_FinancialAssetsTotalMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This member stands for total financial assets.", "label": "Total assets" } } }, "localname": "FinancialAssetsTotalMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementInterestBearingAssetsDetails" ], "xbrltype": "domainItemType" }, "snn_FinancialLiabilitiesLongTermDebtMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This member stands for long-term debt.", "label": "Gross borrowings" } } }, "localname": "FinancialLiabilitiesLongTermDebtMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementInterestBearingLiabilitiesDetails" ], "xbrltype": "domainItemType" }, "snn_FinancialLiabilitiesTotalMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This member stands for total financial liabilities.", "label": "Total liabilities" } } }, "localname": "FinancialLiabilitiesTotalMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementInterestBearingLiabilitiesDetails" ], "xbrltype": "domainItemType" }, "snn_FinancialLiabilitiesUndiscountedCashFlows": { "auth_ref": [], "calculation": { "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsYearEndFinancialLiabilitiesByContractualMaturityDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The amount of contractual undiscounted cash flows in relation to financial liabilities.", "label": "Financial Liabilities Undiscounted Cash Flows", "totalLabel": "Total" } } }, "localname": "FinancialLiabilitiesUndiscountedCashFlows", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsYearEndFinancialLiabilitiesByContractualMaturityDetails" ], "xbrltype": "monetaryItemType" }, "snn_FinancingCashFlowLocationAxis": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The axis of a table defines the relationship between the domain members or categories in the table and the line items or concepts that complete the table.", "label": "Financing Cash Flow Location [Axis]" } } }, "localname": "FinancingCashFlowLocationAxis", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashFlowStatementCashOutflowsInflowsArisingFromFinancingActivitiesDetails" ], "xbrltype": "stringItemType" }, "snn_FinancingCashFlowLocationMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This member stands for the location of specific cash flow items from financing activities.", "label": "Financing Cash Flow Location [Member]" } } }, "localname": "FinancingCashFlowLocationMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashFlowStatementCashOutflowsInflowsArisingFromFinancingActivitiesDetails" ], "xbrltype": "domainItemType" }, "snn_FloatingRateSeniorNotesMaturingNovember2024Member": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents information pertaining to floating rate senior notes maturing November 2024 member.", "label": "Floating Rate Senior Notes Maturing November 2024" } } }, "localname": "FloatingRateSeniorNotesMaturingNovember2024Member", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsLiquidityRiskExposuresDetails" ], "xbrltype": "domainItemType" }, "snn_FundingPresentValueOfAccruedBenefitsTerm": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Minimum funding requirement to fully fund the present value of accrued benefits.", "label": "Funding the present value of accrued benefits term", "terseLabel": "Minimum funding requirement period" } } }, "localname": "FundingPresentValueOfAccruedBenefitsTerm", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsDetails" ], "xbrltype": "durationItemType" }, "snn_FurtherDistributionsToAnyClassOtherThanDeferredShares": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Further distribution for each share to any class other than deferred shares before distribution of an amount equal to the nominal value of the deferred shares in case of any distribution of the company's assets on a winding up or other distribution.", "label": "Further Distributions To Any Class Other Than Deferred Shares", "terseLabel": "Further distribution to each share of any class other than deferred shares in case of winding up" } } }, "localname": "FurtherDistributionsToAnyClassOtherThanDeferredShares", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEquityShareCapitalDetails" ], "xbrltype": "monetaryItemType" }, "snn_GainLossOnDilutionOfInterestInAssociatesOrJointVenture": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of gain (loss) on dilution of interest in associates or joint venture.", "label": "Gain (Loss) on Dilution of Interest in Associates or Joint Venture", "terseLabel": "Net non-cash gain (loss) on dilution of interest in associates or joint venture" } } }, "localname": "GainLossOnDilutionOfInterestInAssociatesOrJointVenture", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureInvestmentsInAssociatesAmountsRecognisedInBalanceSheetAndIncomeStatementDetails" ], "xbrltype": "monetaryItemType" }, "snn_GoodwillNotExpectedToBeDeductibleForTaxPurposes": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The amount of goodwill in a business combination that is not expected to be deductible for tax purposes.", "label": "Goodwill Not Expected to be Deductible for Tax Purposes", "terseLabel": "Goodwill not expected to be deductible for tax purposes" } } }, "localname": "GoodwillNotExpectedToBeDeductibleForTaxPurposes", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails" ], "xbrltype": "monetaryItemType" }, "snn_GovernmentBondsFixedInterestAmountContributedToFairValueOfPlanAssets": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The amount that fixed-interest government bonds constitutes of the fair value of defined benefit plan assets.", "label": "Government bonds - fixed interest, amount contributed to fair value of plan assets", "terseLabel": "Government bonds - fixed interest" } } }, "localname": "GovernmentBondsFixedInterestAmountContributedToFairValueOfPlanAssets", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsPlanAssetsDetails" ], "xbrltype": "monetaryItemType" }, "snn_GovernmentBondsIndexLinkedAmountContributedToFairValueOfPlanAssets": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The amount that government bonds index linked constitutes of the fair value of defined benefit plan assets.", "label": "Government bonds - Index Linked, amount contributed to fair value of plan assets", "terseLabel": "Government bonds - Index Linked" } } }, "localname": "GovernmentBondsIndexLinkedAmountContributedToFairValueOfPlanAssets", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsPlanAssetsDetails" ], "xbrltype": "monetaryItemType" }, "snn_GrossUnusedResearchAndDevelopmentTaxCredits": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The amount of gross unused research and development tax credits.", "label": "Gross Unused Research and Development Tax Credits", "terseLabel": "Gross unused research and development tax credits" } } }, "localname": "GrossUnusedResearchAndDevelopmentTaxCredits", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationDeferredTaxationDetails" ], "xbrltype": "monetaryItemType" }, "snn_HealthpointMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Information pertaining to Healthpoint.", "label": "Healthpoint" } } }, "localname": "HealthpointMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureIntangibleAssetsDetails" ], "xbrltype": "domainItemType" }, "snn_HedgeInstrumentTerm": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Period of time for hedge contracts.", "label": "Hedge Instrument Term", "terseLabel": "Period of time of hedge contracts (in years)" } } }, "localname": "HedgeInstrumentTerm", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementForeignExchangeExposuresDetails" ], "xbrltype": "durationItemType" }, "snn_HedgingInstrumentChangesInFairValueInOtherComprehensiveIncome": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The amount of increase (decrease) in fair value in other comprehensive income.", "label": "Hedging Instrument, Changes In Fair Value In Other Comprehensive Income", "terseLabel": "Change in fair value in OCI" } } }, "localname": "HedgingInstrumentChangesInFairValueInOtherComprehensiveIncome", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementHedgeDetails" ], "xbrltype": "monetaryItemType" }, "snn_HedgingInstrumentsFairValueMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This member stands for hedging instruments measured at fair value.", "label": "Fair value - hedging instruments" } } }, "localname": "HedgingInstrumentsFairValueMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementFairValueDetails" ], "xbrltype": "domainItemType" }, "snn_HipImplantsMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This member stands for the entity's Hip Implants.", "label": "Hip Implants" } } }, "localname": "HipImplantsMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationDetails" ], "xbrltype": "domainItemType" }, "snn_IfrsAccountingPolicesAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "No definition available.", "label": "Accounting Policies" } } }, "localname": "IfrsAccountingPolicesAbstract", "nsuri": "http://www.smith-nephew.com/20211231", "xbrltype": "stringItemType" }, "snn_IfrsDebtInstrumentTerm": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Period of time between issuance and maturity of debt instrument, in duration PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.", "label": "Ifrs Debt Instrument Term", "terseLabel": "Debt instrument term" } } }, "localname": "IfrsDebtInstrumentTerm", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBasisOfPreparationDetails" ], "xbrltype": "durationItemType" }, "snn_IfrsDebtMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This member stands for information related to debt activities.", "label": "Debt" } } }, "localname": "IfrsDebtMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashFlowStatementCashOutflowsInflowsArisingFromFinancingActivitiesDetails" ], "xbrltype": "domainItemType" }, "snn_IfrsDeferredTaxAssetsInventory": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from inventory.", "label": "Ifrs Deferred Tax Assets, Inventory", "terseLabel": "Deferred tax assets, inventory" } } }, "localname": "IfrsDeferredTaxAssetsInventory", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationDeferredTaxationDetails" ], "xbrltype": "monetaryItemType" }, "snn_IfrsEarningsPerShareBasicAndDilutedAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "No definition available.", "label": "ifrs Earnings Per Share, Basic and Diluted [Abstract]", "terseLabel": "Earnings per ordinary share" } } }, "localname": "IfrsEarningsPerShareBasicAndDilutedAbstract", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEarningsPerOrdinaryShareEarningsPerOrdinaryShareDetails" ], "xbrltype": "stringItemType" }, "snn_IfrsEquityMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This member stands for information related to equity activities.", "label": "Equity." } } }, "localname": "IfrsEquityMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashFlowStatementCashOutflowsInflowsArisingFromFinancingActivitiesDetails" ], "xbrltype": "domainItemType" }, "snn_IfrsExcessAndObsoleteInventoryMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This member stands for excess and obsolete inventory.", "label": "Excess and obsolete inventory" } } }, "localname": "IfrsExcessAndObsoleteInventoryMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBasisOfPreparationDetails", "http://www.smith-nephew.com/role/DisclosureInventoriesDetails" ], "xbrltype": "domainItemType" }, "snn_IfrsLineOfCredit": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) post balance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.", "label": "Ifrs Line of Credit", "terseLabel": "Amount drawn" } } }, "localname": "IfrsLineOfCredit", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsLiquidityAndCapitalResourcesDetails" ], "xbrltype": "monetaryItemType" }, "snn_IfrsLineOfCreditFacilityMaximumBorrowingCapacity": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.", "label": "Ifrs Line of Credit Facility, Maximum Borrowing Capacity", "terseLabel": "Committed facilities", "verboseLabel": "Available amount" } } }, "localname": "IfrsLineOfCreditFacilityMaximumBorrowingCapacity", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBasisOfPreparationDetails", "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsLiquidityAndCapitalResourcesDetails", "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsLiquidityRiskExposuresDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementInterestRateExposuresDetails" ], "xbrltype": "monetaryItemType" }, "snn_IfrsNumberOfReportableSegments": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Number of reportable segments.", "label": "Ifrs Number of Reportable Segments", "terseLabel": "Number of reportable segments" } } }, "localname": "IfrsNumberOfReportableSegments", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationDetails" ], "xbrltype": "integerItemType" }, "snn_IfrsRelatedPartyTransactionAxis": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Information by type of related party transaction.", "label": "Ifrs Related Party Transaction [Axis]" } } }, "localname": "IfrsRelatedPartyTransactionAxis", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureOtherNotesToAccountsRelatedPartyTransactionsDetails" ], "xbrltype": "stringItemType" }, "snn_IfrsRelatedPartyTransactionDomain": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Transaction between related party.", "label": "Ifrs Related Party Transaction [Domain]" } } }, "localname": "IfrsRelatedPartyTransactionDomain", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureOtherNotesToAccountsRelatedPartyTransactionsDetails" ], "xbrltype": "domainItemType" }, "snn_IfrsRevolvingCreditFacilityMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This member stands for revolving credit facility.", "label": "Revolving credit facility" } } }, "localname": "IfrsRevolvingCreditFacilityMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementInterestRateExposuresDetails" ], "xbrltype": "domainItemType" }, "snn_IfrsScenarioPreviouslyReportedMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents the amount as previously reported before the correction of an error or other adjustment.", "label": "Previously Reported" } } }, "localname": "IfrsScenarioPreviouslyReportedMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosurePropertyPlantAndEquipmentDetails" ], "xbrltype": "domainItemType" }, "snn_IfrsScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of the components of income tax expense (benefit).", "label": "IFRS Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]", "terseLabel": "Schedule of taxation charge attributable to the group" } } }, "localname": "IfrsScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationTables" ], "xbrltype": "textBlockItemType" }, "snn_IfrsScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying statutory tax rates to pretax income from continuing operations.", "label": "IFRS Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]", "terseLabel": "Schedule of reconciliation of expected tax charge at the UK statutory rate with the actual tax charge" } } }, "localname": "IfrsScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationTables" ], "xbrltype": "textBlockItemType" }, "snn_IfrsScheduleOfInventoryCurrentTableTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of the carrying amount as of the balance sheet date of merchandise, goods, or supplies held for future sale or to be used in manufacturing, servicing or production process.", "label": "IFRS Schedule of Inventory Current [Table Text Block]", "terseLabel": "Schedule of inventory" } } }, "localname": "IfrsScheduleOfInventoryCurrentTableTextBlock", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureInventoriesTables" ], "xbrltype": "textBlockItemType" }, "snn_IfrsStatementLineItems": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Ifrs Statement [Line Items]" } } }, "localname": "IfrsStatementLineItems", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureAcquisitionsTables" ], "xbrltype": "stringItemType" }, "snn_IfrsStatementTable": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "n/a", "label": "IFRS Statement [Table]" } } }, "localname": "IfrsStatementTable", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashFlowStatementCashOutflowsInflowsArisingFromFinancingActivitiesDetails" ], "xbrltype": "stringItemType" }, "snn_IncomeTaxExpenseRelatingToContinuingOperationsComponentsOfOtherComprehensiveIncomeAndItemsChargedOrCreditedDirectlyToEquity": { "auth_ref": [], "calculation": { "http://www.smith-nephew.com/role/DisclosureTaxationTaxationAttributableToGroupDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The aggregate amount included in the determination of profit (loss) for the period in respect of current tax and deferred tax that relate to continuing operations plus the amount relating to amounts recognised in other comprehensive income and the aggregate current and deferred tax relating to particular items that are charged or credited directly to equity.", "label": "Income Tax Expense Relating To Continuing Operations Components of Other Comprehensive Income and Items Charged or Credited Directly To Equity", "totalLabel": "Taxation attributable to the Group" } } }, "localname": "IncomeTaxExpenseRelatingToContinuingOperationsComponentsOfOtherComprehensiveIncomeAndItemsChargedOrCreditedDirectlyToEquity", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationTaxationAttributableToGroupDetails" ], "xbrltype": "monetaryItemType" }, "snn_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatMayOrMayNotBeReclassifiedToProfitOrLoss": { "auth_ref": [], "calculation": { "http://www.smith-nephew.com/role/DisclosureTaxationTaxationAttributableToGroupDetails": { "order": 2.0, "parentTag": "snn_IncomeTaxExpenseRelatingToContinuingOperationsComponentsOfOtherComprehensiveIncomeAndItemsChargedOrCreditedDirectlyToEquity", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The amount of income tax relating to amounts recognised in other comprehensive income that may or may not be reclassified to profit or loss.", "label": "Income Tax Relating to Components of Other Comprehensive Income That May or May Not be Reclassified to Profit or Loss", "terseLabel": "Taxation in other comprehensive income" } } }, "localname": "IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatMayOrMayNotBeReclassifiedToProfitOrLoss", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationTaxationAttributableToGroupDetails" ], "xbrltype": "monetaryItemType" }, "snn_IncreaseDecreaseAcquisitionConsideration": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The amount of increase or decrease in consideration.", "label": "Increase (Decrease) Acquisition Consideration", "terseLabel": "Decrease in consideration" } } }, "localname": "IncreaseDecreaseAcquisitionConsideration", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementFairValueDetails" ], "xbrltype": "monetaryItemType" }, "snn_IncreaseDecreaseFromChangesInTaxRatesDeferredTaxLiabilityAsset": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The increase (decrease) in deferred tax liability (asset) resulting from the changes in tax rates.", "label": "Increase Decrease from Changes in Tax Rates Deferred Tax Liability Asset", "negatedLabel": "Changes in tax rate" } } }, "localname": "IncreaseDecreaseFromChangesInTaxRatesDeferredTaxLiabilityAsset", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationDeferredTaxationDetails" ], "xbrltype": "monetaryItemType" }, "snn_IncreaseDecreaseInAnnualNetInterestChargeDueToReasonablyPossibleIncreaseInRiskVariable": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The increase (decrease) in annual net interest charge as a result of an increase in the relevant risk variable that was reasonably possible at the end of the reporting period.", "label": "Increase (Decrease) in Annual Net Interest Charge Due to Reasonably Possible Increase in Risk Variable", "terseLabel": "Increase in annual net interest charge that would result from increased interest rate, per sensitivity analysis" } } }, "localname": "IncreaseDecreaseInAnnualNetInterestChargeDueToReasonablyPossibleIncreaseInRiskVariable", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementInterestRateExposuresDetails" ], "xbrltype": "monetaryItemType" }, "snn_IncreaseDecreaseInFairValueDueToReasonablyPossibleDecreaseInRiskVariable": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The increase (decrease) in the fair value as a result of an decrease in the relevant risk variable that was reasonably possible at the end of the reporting period.", "label": "Increase (Decrease) in Fair Value Due to Reasonably Possible Decrease in Risk Variable", "terseLabel": "Increase (decrease) in fair value that would result from decreased currency value, per sensitivity analysis" } } }, "localname": "IncreaseDecreaseInFairValueDueToReasonablyPossibleDecreaseInRiskVariable", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementForeignExchangeExposuresDetails" ], "xbrltype": "monetaryItemType" }, "snn_IncreaseDecreaseInLeaseLiability": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of increase (decrease) in obligation for lease.", "label": "Increase (Decrease) in Lease Liability", "terseLabel": "IFRS 16 lease liabilities movement" } } }, "localname": "IncreaseDecreaseInLeaseLiability", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashFlowStatementAnalysisOfNetDebtDetails" ], "xbrltype": "monetaryItemType" }, "snn_IncreaseDecreaseInNetBorrowingsDueToReasonablyPossibleDecreaseInRiskVariable": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The increase (decrease) in net borrowings, as a result of a decrease in the relevant risk variable that was reasonably possible at the end of the reporting period.", "label": "Increase (Decrease) in Net Borrowings Due to Reasonably Possible Decrease in Risk Variable", "terseLabel": "Increase (decrease) in net borrowings that would result from decreased currency value, per sensitivity analysis" } } }, "localname": "IncreaseDecreaseInNetBorrowingsDueToReasonablyPossibleDecreaseInRiskVariable", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementForeignExchangeExposuresDetails" ], "xbrltype": "monetaryItemType" }, "snn_IncreaseDecreaseInNetDebt": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The increase (decrease) in net debt of the entity.", "label": "Increase (decrease) in net debt", "negatedLabel": "Change in net debt in the year", "terseLabel": "Increase (decrease) in net debt" } } }, "localname": "IncreaseDecreaseInNetDebt", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsLiquidityAndCapitalResourcesDetails", "http://www.smith-nephew.com/role/DisclosureCashFlowStatementReconciliationOfNetCashFlowToMovementInNetDebtDetails" ], "xbrltype": "monetaryItemType" }, "snn_IncreaseDecreaseInNetDebtFromNetCashFlowBeforeEffectOfExchangeDifference": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The increase (decrease) in net debt from net cash flows before effect of exchange difference.", "label": "Increase Decrease In Net Debt From Net Cash Flow Before Effect Of Exchange Difference", "terseLabel": "Net cash flow/debt movement", "verboseLabel": "Change in net debt from net cash flow" } } }, "localname": "IncreaseDecreaseInNetDebtFromNetCashFlowBeforeEffectOfExchangeDifference", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashFlowStatementAnalysisOfNetDebtDetails", "http://www.smith-nephew.com/role/DisclosureCashFlowStatementReconciliationOfNetCashFlowToMovementInNetDebtDetails" ], "xbrltype": "monetaryItemType" }, "snn_IncreaseDecreaseInNetDebtThroughEffectOfChangesInForeignExchange": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The increase (decrease) through effect of changes in foreign exchange adjustment.", "label": "Increase (Decrease) in Net Debt Through Effect of Changes in Foreign Exchange", "terseLabel": "Exchange adjustment" } } }, "localname": "IncreaseDecreaseInNetDebtThroughEffectOfChangesInForeignExchange", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashFlowStatementAnalysisOfNetDebtDetails", "http://www.smith-nephew.com/role/DisclosureCashFlowStatementReconciliationOfNetCashFlowToMovementInNetDebtDetails" ], "xbrltype": "monetaryItemType" }, "snn_IncreaseDecreaseInNetDebtThroughEffectOfLeaseLiabilities": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The increase (decrease) in net debt through effect of transition from IFRS 16 to IFRS 17.", "label": "Increase Decrease In Net Debt Through Effect Of Lease Liabilities", "terseLabel": "IFRS 16 lease liabilities" } } }, "localname": "IncreaseDecreaseInNetDebtThroughEffectOfLeaseLiabilities", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashFlowStatementReconciliationOfNetCashFlowToMovementInNetDebtDetails" ], "xbrltype": "monetaryItemType" }, "snn_IncreaseDecreaseInPensionCostDueToReasonablyPossibleDecreaseInActuarialAssumption": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The increase (decrease) in a pension cost that would have been caused by a decrease in a significant actuarial assumption that was reasonably possible at the end of the reporting period.", "label": "Increase (decrease) in pension cost due to reasonably possible decrease in actuarial assumption", "terseLabel": "Pension cost -50bps/-1yr" } } }, "localname": "IncreaseDecreaseInPensionCostDueToReasonablyPossibleDecreaseInActuarialAssumption", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsSensitivityAnalysisDetails" ], "xbrltype": "monetaryItemType" }, "snn_IncreaseDecreaseInPensionCostDueToReasonablyPossibleIncreaseInActuarialAssumption": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The increase (decrease) in a pension cost that would have been caused by an increase in a significant actuarial assumption that was reasonably possible at the end of the reporting period.", "label": "Increase (decrease) in pension cost due to reasonably possible increase in actuarial assumption", "terseLabel": "Pension cost +50bps/+1yr" } } }, "localname": "IncreaseDecreaseInPensionCostDueToReasonablyPossibleIncreaseInActuarialAssumption", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsSensitivityAnalysisDetails" ], "xbrltype": "monetaryItemType" }, "snn_IncreaseDecreaseInProvisionForDoubtfulAccountsForCurrencyTranslation": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The change in the provision for doubtful accounts attributable to currency translation changes.", "label": "Increase (Decrease) In Provision For Doubtful Accounts For Currency Translation", "terseLabel": "Exchange adjustment" } } }, "localname": "IncreaseDecreaseInProvisionForDoubtfulAccountsForCurrencyTranslation", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTradeAndOtherReceivablesMovementsInProvisionForBadAndDoubtfulDebtsDetails" ], "xbrltype": "monetaryItemType" }, "snn_IncreaseDecreaseThroughCostOfSharesTransferredToBeneficiaries": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The Increase (decrease) through cost of shares transferred to beneficiaries.", "label": "Increase decrease through cost of shares transferred to beneficiaries", "negatedLabel": "Shares transferred to Group beneficiaries", "terseLabel": "Cost of shares transferred to beneficiaries" } } }, "localname": "IncreaseDecreaseThroughCostOfSharesTransferredToBeneficiaries", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEquityTreasurySharesDetails", "http://www.smith-nephew.com/role/StatementGroupStatementOfChangesInEquity" ], "xbrltype": "monetaryItemType" }, "snn_IncreaseNumberOfSharesThroughExerciseOfOptions": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The increase in number of shares in equity resulting from the exercise of options.", "label": "Increase Number of Shares Through Exercise of Options", "terseLabel": "Share options (in shares)" } } }, "localname": "IncreaseNumberOfSharesThroughExerciseOfOptions", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEquityShareCapitalDetails" ], "xbrltype": "sharesItemType" }, "snn_InstrumentsMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This member stands for a class of property, plant and equipment representing instrument sets.", "label": "Instruments" } } }, "localname": "InstrumentsMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosurePropertyPlantAndEquipmentDetails" ], "xbrltype": "domainItemType" }, "snn_InstrumentsTransferredToInventoryInCourseOfConstruction": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The amount of instruments transferred to inventory in the course of construction.", "label": "Instruments Transferred to Inventory in Course of Construction", "terseLabel": "Instruments transferred to inventory in the course of construction" } } }, "localname": "InstrumentsTransferredToInventoryInCourseOfConstruction", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosurePropertyPlantAndEquipmentDetails" ], "xbrltype": "monetaryItemType" }, "snn_InsuranceContractsAmountContributedToFairValueOfPlanAssets": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The amount that insurance contracts constitutes of the fair value of defined benefit plan assets.", "label": "Insurance contracts, amount contributed to fair value of plan assets", "terseLabel": "Insurance contracts" } } }, "localname": "InsuranceContractsAmountContributedToFairValueOfPlanAssets", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsPlanAssetsDetails" ], "xbrltype": "monetaryItemType" }, "snn_InsuranceRecoveriesReceived": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Credit for insurance recoveries received.", "label": "Insurance Recoveries Received", "terseLabel": "Credit for insurance recoveries" } } }, "localname": "InsuranceRecoveriesReceived", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationTradingAndOperatingProfitByBusinessSegmentDetails", "http://www.smith-nephew.com/role/DisclosureOperatingProfitDetails" ], "xbrltype": "monetaryItemType" }, "snn_IntangiblesMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This member stands for intangibles.", "label": "Intangibles" } } }, "localname": "IntangiblesMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationDeferredTaxationDetails" ], "xbrltype": "domainItemType" }, "snn_InterestExpenseOnPrivatePlacementNotes": { "auth_ref": [], "calculation": { "http://www.smith-nephew.com/role/DisclosureInterestAndOtherFinanceCostsInterestIncomeExpenseDetails": { "order": 5.0, "parentTag": "ifrs-full_InterestExpense", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The amount of interest expense on private placement notes.", "label": "Interest Expense On Private Placement Notes", "negatedLabel": "Private placement notes" } } }, "localname": "InterestExpenseOnPrivatePlacementNotes", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureInterestAndOtherFinanceCostsInterestIncomeExpenseDetails" ], "xbrltype": "monetaryItemType" }, "snn_InterestOnIncomeTaxesPaidRefund": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The amount of interest on income taxes paid (refund).", "label": "Interest On Income Taxes Paid (Refund)", "terseLabel": "Interest on income taxes paid (refund)" } } }, "localname": "InterestOnIncomeTaxesPaidRefund", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEarningsPerOrdinaryShareCalculationOfBasicDilutedAndAdjustedEarningsPerShareDetails" ], "xbrltype": "monetaryItemType" }, "snn_InterestPayableOnAcquisitionConsideration": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The amount of interest recognised as a liability on acquisition consideration.", "label": "Interest Payable on Acquisition Consideration", "terseLabel": "Interest payable on deferred acquisition consideration" } } }, "localname": "InterestPayableOnAcquisitionConsideration", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementInterestBearingLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "snn_InterestRateTerm": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Time for which rate is fixed.", "label": "Borrowings, Term", "terseLabel": "Time for which rate is fixed" } } }, "localname": "InterestRateTerm", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementInterestBearingLiabilitiesDetails" ], "xbrltype": "durationItemType" }, "snn_InventoryProvisionMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This member stands for the provision for excess and obsolete inventories.", "label": "Reserves for excess and obsolete inventories" } } }, "localname": "InventoryProvisionMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureInventoriesDetails" ], "xbrltype": "domainItemType" }, "snn_InventoryProvisionsAndOtherDifferencesMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This member stands for inventory, provisions and other differences.", "label": "Inventory, provisions and other differences" } } }, "localname": "InventoryProvisionsAndOtherDifferencesMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationDeferredTaxationDetails" ], "xbrltype": "domainItemType" }, "snn_KneeImplantsMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This member stands for the entity's Knee Implants.", "label": "Knee Implants" } } }, "localname": "KneeImplantsMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationDetails" ], "xbrltype": "domainItemType" }, "snn_LaterThanFourYearsMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This member stands for a time band of later than four years.", "label": "After four years" } } }, "localname": "LaterThanFourYearsMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTradeAndOtherPayablesDetails" ], "xbrltype": "domainItemType" }, "snn_LaterThanOneMonthMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This member stands for a time band of later than one month.", "label": "Total past due" } } }, "localname": "LaterThanOneMonthMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTradeAndOtherReceivablesTradeReceivablesPastDueDetails" ], "xbrltype": "domainItemType" }, "snn_LeafHealthcareMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Information pertaining to Leaf Healthcare, Inc.", "label": "Leaf Healthcare" } } }, "localname": "LeafHealthcareMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails" ], "xbrltype": "domainItemType" }, "snn_LeaseLiabilityDiscountedAmount": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The amount of discounted portion on lease liability.", "label": "Lease Liability Discounted Amount", "terseLabel": "Discounted amount" } } }, "localname": "LeaseLiabilityDiscountedAmount", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsBorrowingsAreRepayableDetails" ], "xbrltype": "monetaryItemType" }, "snn_LeaseLiabilityPaymentsDue": { "auth_ref": [], "calculation": { "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsBorrowingsAreRepayableDetails": { "order": 2.0, "parentTag": "snn_BorrowingsIncludingLeaseLiabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The amount of undiscounted lease liability due.", "label": "Lease Liability Payments Due", "terseLabel": "Lease liabilities" } } }, "localname": "LeaseLiabilityPaymentsDue", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsBorrowingsAreRepayableDetails" ], "xbrltype": "monetaryItemType" }, "snn_LegalAndOtherExpense": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The amount of legal fees paid or payable, and other expense.", "label": "Legal and Other Expense", "terseLabel": "Legal and other charges" } } }, "localname": "LegalAndOtherExpense", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureOperatingProfitDetails" ], "xbrltype": "monetaryItemType" }, "snn_LegalAndOtherExpenseOutsideTrading": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The amount of legal fees paid or payable, and other expense (outside management's definition of trading profit).", "label": "Legal and Other Expense Outside Trading", "terseLabel": "Legal and other", "verboseLabel": "Legal and other charges" } } }, "localname": "LegalAndOtherExpenseOutsideTrading", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationTradingAndOperatingProfitByBusinessSegmentDetails", "http://www.smith-nephew.com/role/DisclosureEarningsPerOrdinaryShareCalculationOfBasicDilutedAndAdjustedEarningsPerShareDetails" ], "xbrltype": "monetaryItemType" }, "snn_LegalAndOtherExpensesOutsideTradingAdjusted": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The amount of legal and other expenses incurred (outside management's definition of trading profit), including adjustments.", "label": "Legal and Other Expenses, Outside Trading, Adjusted", "terseLabel": "Legal and other" } } }, "localname": "LegalAndOtherExpensesOutsideTradingAdjusted", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEarningsPerOrdinaryShareCalculationOfBasicDilutedAndAdjustedEarningsPerShareDetails" ], "xbrltype": "monetaryItemType" }, "snn_LegalAndOtherItems": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Charges related to legal and other items.", "label": "Legal and Other Items", "terseLabel": "Legal and other items" } } }, "localname": "LegalAndOtherItems", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureOperatingProfitDetails" ], "xbrltype": "monetaryItemType" }, "snn_LegalExpensesRelatingToOngoingMetalOnMetalHipClaims": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The amount of legal expenses relating to the ongoing metal-on-metal hip claims.", "label": "Legal expenses relating to the ongoing metal-on-metal hip claims", "terseLabel": "Legal expenses" } } }, "localname": "LegalExpensesRelatingToOngoingMetalOnMetalHipClaims", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationTradingAndOperatingProfitByBusinessSegmentDetails" ], "xbrltype": "monetaryItemType" }, "snn_LeverageRatio": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The leverage ratio of principal covenant on debt measured on 12 month basis at half year and year end.", "label": "Leverage Ratio", "terseLabel": "Leverage Ratio" } } }, "localname": "LeverageRatio", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBasisOfPreparationDetails" ], "xbrltype": "pureItemType" }, "snn_LeverageRatioIncludingLeaseLiabilities": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The leverage ratio including lease liabilities of principal covenant on debt measured on 12 month basis at half year and year end.", "label": "Leverage Ratio Including Lease Liabilities", "terseLabel": "Leverage ratio including lease liabilities" } } }, "localname": "LeverageRatioIncludingLeaseLiabilities", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBasisOfPreparationDetails" ], "xbrltype": "pureItemType" }, "snn_LiabilityDrivenInvestmentsAmountContributedToFairValueOfPlanAssets": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The amount that liability driven investments constitutes of the fair value of defined benefit plan assets.", "label": "Liability driven investments, amount contributed to fair value of plan assets", "terseLabel": "Liability driven investments" } } }, "localname": "LiabilityDrivenInvestmentsAmountContributedToFairValueOfPlanAssets", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsPlanAssetsDetails" ], "xbrltype": "monetaryItemType" }, "snn_LifeExpectancyAtAge60Female": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Life expectancy of female at age of 60.", "label": "Life expectancy at age 60, Female", "terseLabel": "Life expectancy at age 60, Female" } } }, "localname": "LifeExpectancyAtAge60Female", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsPrincipalActuarialAssumptionsDetails" ], "xbrltype": "durationItemType" }, "snn_LifeExpectancyAtAge60In20YearsTimeFemale": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Life expectancy of female at age of 60 in 20 years' time.", "label": "Life expectancy at age 60 in 20 years' time, Female", "terseLabel": "Life expectancy at age 60 in 20 years' time, Female" } } }, "localname": "LifeExpectancyAtAge60In20YearsTimeFemale", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsPrincipalActuarialAssumptionsDetails" ], "xbrltype": "durationItemType" }, "snn_LifeExpectancyAtAge60In20YearsTimeMale": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Life expectancy of male at age of 60 in 20 years' time.", "label": "Life expectancy at age 60 in 20 years' time, Male", "terseLabel": "Life expectancy at age 60 in 20 years' time, Male" } } }, "localname": "LifeExpectancyAtAge60In20YearsTimeMale", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsPrincipalActuarialAssumptionsDetails" ], "xbrltype": "durationItemType" }, "snn_LifeExpectancyAtAge60Male": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Life expectancy of male at age of 60.", "label": "Life expectancy at age 60, Male", "terseLabel": "Life expectancy at age 60, Male" } } }, "localname": "LifeExpectancyAtAge60Male", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsPrincipalActuarialAssumptionsDetails" ], "xbrltype": "durationItemType" }, "snn_LongTermBankBorrowings": { "auth_ref": [], "calculation": { "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsNetDebtDetails": { "order": 2.0, "parentTag": "ifrs-full_Borrowings", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The non-current portion of bank borrowings.", "label": "Long-term Bank Borrowings", "terseLabel": "Long-term bank borrowings" } } }, "localname": "LongTermBankBorrowings", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsNetDebtDetails" ], "xbrltype": "monetaryItemType" }, "snn_LongTermBorrowingMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This member stands for long-term borrowings.", "label": "Due after one year" } } }, "localname": "LongTermBorrowingMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashFlowStatementAnalysisOfNetDebtDetails" ], "xbrltype": "domainItemType" }, "snn_LongTermDebtAndLeaseLiabilitiesNonCurrent": { "auth_ref": [], "calculation": { "http://www.smith-nephew.com/role/StatementGroupBalanceSheet": { "order": 1.0, "parentTag": "ifrs-full_NoncurrentLiabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The carrying amount as of the balance sheet date of long term debt and lease liabilities classified as non-current.", "label": "Long Term Debt And Lease Liabilities, Non Current", "terseLabel": "Long-term borrowings and lease liabilities" } } }, "localname": "LongTermDebtAndLeaseLiabilitiesNonCurrent", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/StatementGroupBalanceSheet" ], "xbrltype": "monetaryItemType" }, "snn_LossContingencyNumberOfCasesSettled": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Number of cases settled by the company.", "label": "Loss Contingency, Number Of Cases Settled", "terseLabel": "Number of cases settled" } } }, "localname": "LossContingencyNumberOfCasesSettled", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureProvisionsAndContingenciesLegalProceedingsDetails" ], "xbrltype": "integerItemType" }, "snn_LossContingencyNumberOfCountriesInWhichCompanySettledCases": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Number of countries in which the company has settled cases.", "label": "Loss Contingency, Number Of Countries In Which The Company Settled Cases", "terseLabel": "Number of countries in which the company has settled cases" } } }, "localname": "LossContingencyNumberOfCountriesInWhichCompanySettledCases", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureProvisionsAndContingenciesLegalProceedingsDetails" ], "xbrltype": "integerItemType" }, "snn_LossOnFactoryShutdownCostsOrReductionInProduction": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The amount of net adverse manufacturing variances generated by factory specific shutdowns or reductions in scheduled production.", "label": "Loss on Factory Shutdown Costs or Reduction in Production", "terseLabel": "Loss on factory shutdown costs or reduction in production" } } }, "localname": "LossOnFactoryShutdownCostsOrReductionInProduction", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureInventoriesDetails" ], "xbrltype": "monetaryItemType" }, "snn_MacrotextureMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This member stands for Macrotexture.", "label": "Macrotexture" } } }, "localname": "MacrotextureMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationDeferredTaxationDetails" ], "xbrltype": "domainItemType" }, "snn_MaximumPotentialLiability": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The amount represents the maximum potential liability related to the UK CFC financing exemption rules.", "label": "Maximum Potential Liability", "terseLabel": "Maximum potential liability" } } }, "localname": "MaximumPotentialLiability", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationFactorsAffectingFutureTaxChargesDetails" ], "xbrltype": "monetaryItemType" }, "snn_MaximumRangeOfPercentileGeneratedByActuarialModel": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The maximum range of expected outcomes of generated by the actuarial model which would not give rise to a significantly different outcome.", "label": "Maximum Range Of Percentile Generated By Actuarial Model", "terseLabel": "Maximum range of percentile" } } }, "localname": "MaximumRangeOfPercentileGeneratedByActuarialModel", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureProvisionsAndContingenciesCurrentAndNonCurrentProvisionsDetails" ], "xbrltype": "integerItemType" }, "snn_MetalOnMetalHipClaimsProvisionMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This member stands for a provision for Metal on metal hip claims.", "label": "Metal-on-metal" } } }, "localname": "MetalOnMetalHipClaimsProvisionMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEarningsPerOrdinaryShareCalculationOfBasicDilutedAndAdjustedEarningsPerShareDetails", "http://www.smith-nephew.com/role/DisclosureProvisionsAndContingenciesChangesInProvisionsDetails", "http://www.smith-nephew.com/role/DisclosureProvisionsAndContingenciesCurrentAndNonCurrentProvisionsDetails", "http://www.smith-nephew.com/role/DisclosureProvisionsAndContingenciesLegalProceedingsDetails" ], "xbrltype": "domainItemType" }, "snn_MinimumRangeOfPercentileGeneratedByActuarialModel": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The minimum range of expected outcomes of generated by the actuarial model which would not give rise to a significantly different outcome.", "label": "Minimum Range Of Percentile Generated By Actuarial Model", "terseLabel": "Minimum range of percentile" } } }, "localname": "MinimumRangeOfPercentileGeneratedByActuarialModel", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureProvisionsAndContingenciesCurrentAndNonCurrentProvisionsDetails" ], "xbrltype": "integerItemType" }, "snn_NetDebtIncludingLeaseLiability": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The amount of net debt including lease liability.", "label": "Net Debt Including Lease Liability", "negatedPeriodEndLabel": "Balance at end of year", "negatedPeriodStartLabel": "Balance at beginning of year", "terseLabel": "Net debt including lease liabilities" } } }, "localname": "NetDebtIncludingLeaseLiability", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsLiquidityAndCapitalResourcesDetails", "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsNetDebtDetails", "http://www.smith-nephew.com/role/DisclosureCashFlowStatementAnalysisOfNetDebtDetails", "http://www.smith-nephew.com/role/DisclosureCashFlowStatementReconciliationOfNetCashFlowToMovementInNetDebtDetails" ], "xbrltype": "monetaryItemType" }, "snn_NetDeferredTaxAssetsLiabilitiesRecognisedAsOfAcquisitionDate": { "auth_ref": [], "calculation": { "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails": { "order": 6.0, "parentTag": "ifrs-full_IdentifiableAssetsAcquiredLiabilitiesAssumed", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Net deferred tax asset (liability) recognised as of the acquisition date.", "label": "Net Deferred Tax Assets (Liabilities) Recognised as of Acquisition Date", "terseLabel": "Net deferred tax asset/(liability)" } } }, "localname": "NetDeferredTaxAssetsLiabilitiesRecognisedAsOfAcquisitionDate", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails" ], "xbrltype": "monetaryItemType" }, "snn_NetDefinedBenefitAsset": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of net defined benefit asset.", "label": "Net defined benefit asset", "terseLabel": "Amount recognised on the balance sheet - asset" } } }, "localname": "NetDefinedBenefitAsset", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsReconciliationOfBenefitObligationsAndPensionAssetsDetails" ], "xbrltype": "monetaryItemType" }, "snn_NetDefinedBenefitLiability": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of net defined benefit liability.", "label": "Net defined benefit liability", "negatedLabel": "Amount recognised on the balance sheet - liability" } } }, "localname": "NetDefinedBenefitLiability", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsReconciliationOfBenefitObligationsAndPensionAssetsDetails" ], "xbrltype": "monetaryItemType" }, "snn_NonTaxableAccountingGainOnUkOwnedInvestments": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of non taxable accounting gains on UK owned investments.", "label": "Non Taxable Accounting Gain on Uk Owned Investments", "terseLabel": "Non taxable accounting gains on UK owned investments" } } }, "localname": "NonTaxableAccountingGainOnUkOwnedInvestments", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationFactorsAffectingFutureTaxChargesDetails" ], "xbrltype": "monetaryItemType" }, "snn_NonTradingTaxLossesMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This member stands for non-trading tax losses have been incurred and are carried forward for use against future taxable profit.", "label": "Non-trading tax losses" } } }, "localname": "NonTradingTaxLossesMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationDeferredTaxationDetails" ], "xbrltype": "domainItemType" }, "snn_NoncurrentAssetsOtherThanRetirementBenefitAssetsAndDeferredTaxAssets": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The amount of assets that do not meet the definition of current assets other than retirement benefit assets and deferred tax assets.", "label": "Noncurrent assets other than retirement benefit assets and deferred tax assets", "terseLabel": "Non-current assets" } } }, "localname": "NoncurrentAssetsOtherThanRetirementBenefitAssetsAndDeferredTaxAssets", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationAssetsAndLiabilitiesByBusinessSegmentAndGeographyDetails" ], "xbrltype": "monetaryItemType" }, "snn_NotesDue2030Member": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This member stands for equity instruments that are subordinate to all other classes of equity instruments. It also represents the standard value for the 'Classes of ordinary shares' axis if no other member is used.", "label": "2.032% Notes due 2030" } } }, "localname": "NotesDue2030Member", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "domainItemType" }, "snn_NumberOfAssociates": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The number of additional associates in which the entity reports an equity method investment.", "label": "Number of associates", "terseLabel": "Number of associates" } } }, "localname": "NumberOfAssociates", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureInvestmentsInAssociatesSummarisedBalanceSheetDetails" ], "xbrltype": "integerItemType" }, "snn_NumberOfBusinessesAcquiredBusinessCombination": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The number of businesses acquired by the entity during the period that were deemed to be business combinations.", "label": "Number of Businesses Acquired, Business Combination", "terseLabel": "Number of businesses acquired, deemed to be business combinations" } } }, "localname": "NumberOfBusinessesAcquiredBusinessCombination", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails" ], "xbrltype": "integerItemType" }, "snn_NumberOfCashGeneratingUnits": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Number of Cash Generating Units identified by the company", "label": "Number of Cash Generating Units", "terseLabel": "Number of Cash Generating Units" } } }, "localname": "NumberOfCashGeneratingUnits", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureGoodwillDetails" ], "xbrltype": "integerItemType" }, "snn_NumberOfCountriesCompanyOperatesIn": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The number of countries the entity operates in as of balance sheet date.", "label": "Number of Countries The Company Operates In", "terseLabel": "Number of countries in which the company operates" } } }, "localname": "NumberOfCountriesCompanyOperatesIn", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashFlowStatementCashAndCashEquivalentsDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementForeignExchangeExposuresDetails" ], "xbrltype": "integerItemType" }, "snn_NumberOfCountriesInWhichGroupSponsorsDefinedBenefitPlans": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Number of countries in which group sponsors defined benefit plans.", "label": "Number of countries in which group sponsors defined benefit plans", "terseLabel": "Number of countries" } } }, "localname": "NumberOfCountriesInWhichGroupSponsorsDefinedBenefitPlans", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsDetails" ], "xbrltype": "integerItemType" }, "snn_NumberOfGlobalFranchiseDivisions": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Number of global franchise divisions.", "label": "Number of Global Franchise Divisions", "terseLabel": "Number of global franchise divisions" } } }, "localname": "NumberOfGlobalFranchiseDivisions", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationDetails" ], "xbrltype": "integerItemType" }, "snn_NumberOfGlobalFranchisePresidents": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Number of global franchise presidents.", "label": "Number of Global Franchise Presidents", "terseLabel": "Number of global franchise presidents" } } }, "localname": "NumberOfGlobalFranchisePresidents", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationDetails" ], "xbrltype": "integerItemType" }, "snn_NumberOfGroupSettlementsDuringPeriod": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents the number of group settlements resolved during the period.", "label": "Number Of Group Settlements During Period", "terseLabel": "Number of group settlements" } } }, "localname": "NumberOfGroupSettlementsDuringPeriod", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureProvisionsAndContingenciesLegalProceedingsDetails" ], "xbrltype": "integerItemType" }, "snn_NumberOfLitigationCasesRequestedToBeTransferred": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents the number of pending litigation cases against the entity that have been requested by the plaintiff to be transferred to a different jurisdiction.", "label": "Number Of Litigation Cases Requested To Be Transferred", "terseLabel": "Number of cases requested by plaintiffs to be transferred" } } }, "localname": "NumberOfLitigationCasesRequestedToBeTransferred", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureProvisionsAndContingenciesLegalProceedingsDetails" ], "xbrltype": "integerItemType" }, "snn_NumberOfLitigationSettlementClaimsOutstanding": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents the number of litigation settlement claims outstanding against the entity.", "label": "Number Of Litigation Settlement Claims Outstanding", "terseLabel": "Number of claims pending" } } }, "localname": "NumberOfLitigationSettlementClaimsOutstanding", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureProvisionsAndContingenciesLegalProceedingsDetails" ], "xbrltype": "integerItemType" }, "snn_NumberOfMajorDefinedBenefitPensionPlans": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Group's number of major defined benefit pension plans.", "label": "Number of major defined benefit pension plans", "terseLabel": "Number of major defined benefit plans" } } }, "localname": "NumberOfMajorDefinedBenefitPensionPlans", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsDetails" ], "xbrltype": "integerItemType" }, "snn_NumberOfModularComponents": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents the number of modular components in a product.", "label": "Number Of Modular Components", "terseLabel": "Number of modular components" } } }, "localname": "NumberOfModularComponents", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureProvisionsAndContingenciesLegalProceedingsDetails" ], "xbrltype": "integerItemType" }, "snn_NumberOfShareOptionsMaximumAvailableToGrant": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The maximum number of share options available to gran in a share-based payment arrangement.", "label": "Number of Share Options, Available to Grant", "terseLabel": "Maximum number of share options available to grant" } } }, "localname": "NumberOfShareOptionsMaximumAvailableToGrant", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureOtherNotesToAccountsStockOptionsOutstandingDetails" ], "xbrltype": "sharesItemType" }, "snn_NumberOfSharesAuthorisedValue": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Value of shares authorized.", "label": "Number Of Shares Authorised Value", "terseLabel": "Value of shares authorized" } } }, "localname": "NumberOfSharesAuthorisedValue", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEquityShareCapitalDetails" ], "xbrltype": "monetaryItemType" }, "snn_NumberOfSharesTransferredFromTreasury": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Number of shares transferred from treasury.", "label": "Number Of Shares Transferred From Treasury", "terseLabel": "Shares transferred from treasury (in shares)" } } }, "localname": "NumberOfSharesTransferredFromTreasury", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEquityTreasurySharesDetails" ], "xbrltype": "sharesItemType" }, "snn_NumberOfWhollyOwnedSubsidiariesAcquired": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Number of wholly owned subsidiaries acquired.", "label": "Number of Wholly Owned Subsidiaries Acquired", "terseLabel": "Number of Wholly Owned Subsidiaries Acquired" } } }, "localname": "NumberOfWhollyOwnedSubsidiariesAcquired", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails" ], "xbrltype": "integerItemType" }, "snn_OrthopaedicInstrumentsMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This member refers to orthopaedic instruments.", "label": "Orthopaedic instruments" } } }, "localname": "OrthopaedicInstrumentsMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureInventoriesDetails" ], "xbrltype": "domainItemType" }, "snn_OrthopaedicsMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This member stands for Orthopaedics.", "label": "Orthopaedics" } } }, "localname": "OrthopaedicsMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBasisOfPreparationDetails", "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationDetails", "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationTradingAndOperatingProfitByBusinessSegmentDetails", "http://www.smith-nephew.com/role/DisclosureGoodwillDetails" ], "xbrltype": "domainItemType" }, "snn_OrthopaedicsSportsMedicineAndEarNoseAndThroatMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This member stands for the Orthopaedics, Sports Medicine and Ears, Nose and Throat product lines.", "label": "Orthopaedics, Sports Medicine and Ear Nose and Throat [Member]" } } }, "localname": "OrthopaedicsSportsMedicineAndEarNoseAndThroatMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationDetails" ], "xbrltype": "domainItemType" }, "snn_OrthopaedicsSportsMedicineAndEntAndAdvancedWoundManagementMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This member stands for Orthopaedics, Sports Medicine & ENT and Advanced Wound Management.", "label": "Orthopaedics, Sports Medicine and ENT and Advanced Wound Management" } } }, "localname": "OrthopaedicsSportsMedicineAndEntAndAdvancedWoundManagementMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationDetails" ], "xbrltype": "domainItemType" }, "snn_OsirisTherapeuticsMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Information pertaining to Osiris Therapeutics, Inc.", "label": "Osiris Therapeutics" } } }, "localname": "OsirisTherapeuticsMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails", "http://www.smith-nephew.com/role/DisclosureIntangibleAssetsDetails" ], "xbrltype": "domainItemType" }, "snn_OtherBondsAmountContributedToFairValueOfPlanAssets": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The amount that other bonds constitutes of the fair value of defined benefit plan assets.", "label": "Other Bonds, amount contributed to fair value of plan assets", "terseLabel": "Other bonds" } } }, "localname": "OtherBondsAmountContributedToFairValueOfPlanAssets", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsPlanAssetsDetails" ], "xbrltype": "monetaryItemType" }, "snn_OtherComprehensiveIncomeNetOfTaxGainLossesTransferredToInventories": { "auth_ref": [], "calculation": { "http://www.smith-nephew.com/role/StatementGroupStatementOfComprehensiveIncome": { "order": 2.0, "parentTag": "ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The amount of other comprehensive income related to losses/(gains) transferred to inventories.", "label": "Other comprehensive income, net of tax, Gain Losses Transferred to Inventories", "verboseLabel": "Losses/(gains) transferred to inventories for the year" } } }, "localname": "OtherComprehensiveIncomeNetOfTaxGainLossesTransferredToInventories", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/StatementGroupStatementOfComprehensiveIncome" ], "xbrltype": "monetaryItemType" }, "snn_OtherCurrencyMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents other currency.", "label": "Other Currencies" } } }, "localname": "OtherCurrencyMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementInterestBearingAssetsDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementInterestBearingLiabilitiesDetails", "http://www.smith-nephew.com/role/DisclosureTradeAndOtherReceivablesTradeReceivablesDenominatedInMajorCurrenciesDetails" ], "xbrltype": "domainItemType" }, "snn_OtherFinanceCostExcludingRetirementBenefitAndUnwindingOfDiscount": { "auth_ref": [], "calculation": { "http://www.smith-nephew.com/role/DisclosureInterestAndOtherFinanceCostsOtherFinanceCostsDetails": { "order": 3.0, "parentTag": "ifrs-full_OtherFinanceCost", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The amount of other finance cost excluding post retirement benefits and unwinding of discount.", "label": "Other Finance Cost Excluding Retirement Benefit And Unwinding Of Discount", "negatedLabel": "Other" } } }, "localname": "OtherFinanceCostExcludingRetirementBenefitAndUnwindingOfDiscount", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureInterestAndOtherFinanceCostsOtherFinanceCostsDetails" ], "xbrltype": "monetaryItemType" }, "snn_OtherFinancialLiabilitiesMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This member stands for other financial liabilities.", "label": "Other financial liabilities" } } }, "localname": "OtherFinancialLiabilitiesMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementFairValueDetails" ], "xbrltype": "domainItemType" }, "snn_OtherInterestOnProvision": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The amount represents the other interest on provision for uncertain tax positions.", "label": "Other interest On Provision", "terseLabel": "Other interest on provision for uncertain tax positions" } } }, "localname": "OtherInterestOnProvision", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationFactorsAffectingFutureTaxChargesDetails" ], "xbrltype": "monetaryItemType" }, "snn_OtherMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This member stands for the rest of the world excluding the UK and the US.", "label": "Other Countries" } } }, "localname": "OtherMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsDetails", "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsPlanAssetsDetails", "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsReconciliationOfBenefitObligationsAndPensionAssetsDetails" ], "xbrltype": "domainItemType" }, "snn_OtherNonCurrentAssetsRecognisedAsOfAcquisitionDate": { "auth_ref": [], "calculation": { "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails": { "order": 4.0, "parentTag": "ifrs-full_IdentifiableAssetsAcquiredLiabilitiesAssumed", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Other non-current assets recognized as of the acquisition date.", "label": "Other Non-current Assets Recognised as of Acquisition Date", "terseLabel": "Other non-current assets" } } }, "localname": "OtherNonCurrentAssetsRecognisedAsOfAcquisitionDate", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails" ], "xbrltype": "monetaryItemType" }, "snn_OtherNoncurrentPayablesExcludingBusinessCombinationPayables": { "auth_ref": [], "calculation": { "http://www.smith-nephew.com/role/DisclosureTradeAndOtherPayablesDetails": { "order": 2.0, "parentTag": "ifrs-full_OtherNoncurrentPayables", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Represents other non-current payables excluding payables related to business combinations.", "label": "Other Noncurrent Payables, Excluding Business Combination Payables", "terseLabel": "Other payables" } } }, "localname": "OtherNoncurrentPayablesExcludingBusinessCombinationPayables", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTradeAndOtherPayablesDetails" ], "xbrltype": "monetaryItemType" }, "snn_OtherQuotedSecuritiesAmountContributedToFairValueOfPlanAssets": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The amount that other quoted securities constitutes of the fair value of defined benefit plan assets.", "label": "Other quoted securities, amount contributed to fair value of plan assets", "terseLabel": "Other quoted securities" } } }, "localname": "OtherQuotedSecuritiesAmountContributedToFairValueOfPlanAssets", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsPlanAssetsDetails" ], "xbrltype": "monetaryItemType" }, "snn_OtherReconstructionMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This member stands for the entity's Other Reconstruction product.", "label": "Other Reconstruction" } } }, "localname": "OtherReconstructionMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationDetails" ], "xbrltype": "domainItemType" }, "snn_OtherReservesOtherthanCapitalRedemptionReserve": { "auth_ref": [], "calculation": { "http://www.smith-nephew.com/role/StatementGroupBalanceSheet": { "order": 3.0, "parentTag": "ifrs-full_EquityAttributableToOwnersOfParent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "A component of equity representing reserves within equity, not including retained earnings and capital redemption reserve.", "label": "Other Reserves Otherthan Capital Redemption Reserve", "terseLabel": "Other reserves" } } }, "localname": "OtherReservesOtherthanCapitalRedemptionReserve", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/StatementGroupBalanceSheet" ], "xbrltype": "monetaryItemType" }, "snn_OtherTaxesPaidRefund": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The cash flows from other taxes paid or refunded, other than income taxes.", "label": "Other Taxes Paid Refund", "terseLabel": "Other tax refund" } } }, "localname": "OtherTaxesPaidRefund", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationTaxationAttributableToGroupDetails" ], "xbrltype": "monetaryItemType" }, "snn_OtherTradingTransactionsMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This member stands for aggregated transactions with associates, which have not been disclosed elsewhere in the financial statements.", "label": "Trading transactions - not been disclosed elsewhere in the financial statements" } } }, "localname": "OtherTradingTransactionsMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureOtherNotesToAccountsRelatedPartyTransactionsDetails" ], "xbrltype": "domainItemType" }, "snn_PayableInFourYearsMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This member stands for amounts payable in four years.", "label": "In four years" } } }, "localname": "PayableInFourYearsMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTradeAndOtherPayablesDetails" ], "xbrltype": "domainItemType" }, "snn_PayableInThreeYearsMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This member stands for amounts payable in three years.", "label": "In three years" } } }, "localname": "PayableInThreeYearsMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTradeAndOtherPayablesDetails" ], "xbrltype": "domainItemType" }, "snn_PayableInTwoYearsMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This member stands for amounts payable in two years.", "label": "In two years" } } }, "localname": "PayableInTwoYearsMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTradeAndOtherPayablesDetails" ], "xbrltype": "domainItemType" }, "snn_PaymentOfAcquisitionRelatedCosts": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The cash outflow for acquisition related costs paid.", "label": "Payment Of Acquisition Related Costs", "terseLabel": "Acquisition-related costs" } } }, "localname": "PaymentOfAcquisitionRelatedCosts", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement" ], "xbrltype": "monetaryItemType" }, "snn_PaymentOfLegalAndOtherCosts": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The cash outflow for legal and other costs paid (excluded from management's definition of trading).", "label": "Payment Of Legal And Other Costs", "terseLabel": "Legal and other costs" } } }, "localname": "PaymentOfLegalAndOtherCosts", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement" ], "xbrltype": "monetaryItemType" }, "snn_PaymentOfRestructuringAndRationalisationExpenses": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The cash outflow for restructuring and rationalisation expenses paid.", "label": "Payment Of Restructuring And Rationalisation Expenses", "terseLabel": "Restructuring and rationalisation expenses" } } }, "localname": "PaymentOfRestructuringAndRationalisationExpenses", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement" ], "xbrltype": "monetaryItemType" }, "snn_PaymentsFairValueMeasurementLiabilities": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The decrease in the fair value measurement of liabilities resulting from payments", "label": "Payments, Fair Value Measurement, Liabilities", "terseLabel": "Payments" } } }, "localname": "PaymentsFairValueMeasurementLiabilities", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementMovementOfFinancialInstrumentsDetails" ], "xbrltype": "monetaryItemType" }, "snn_PaymentsOfDeferredContingentConsideration": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The amount of cash outflow on deferred contingent consideration.", "label": "Payments of Deferred Contingent Consideration", "terseLabel": "Payments of deferred contingent consideration" } } }, "localname": "PaymentsOfDeferredContingentConsideration", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails" ], "xbrltype": "monetaryItemType" }, "snn_PercentageOfInventory": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Percentage of total inventory.", "label": "Percentage of Inventory", "terseLabel": "Percentage of inventory" } } }, "localname": "PercentageOfInventory", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBasisOfPreparationDetails" ], "xbrltype": "pureItemType" }, "snn_PercentageOfTotalProvisionForExcessAndObsoleteInventory": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Percentage of total provision for excess and obsolete inventory.", "label": "Percentage of Total Provision for Excess and Obsolete Inventory", "terseLabel": "Percentage of total provision for excess and obsolete inventory" } } }, "localname": "PercentageOfTotalProvisionForExcessAndObsoleteInventory", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBasisOfPreparationDetails" ], "xbrltype": "pureItemType" }, "snn_PercentageOfWaiverOfDividendsOverTotalPaidDividends": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Percentage of dividends that are waived in compared with total paid dividends.", "label": "Percentage Of Waiver Of Dividends Over Total Paid Dividends", "terseLabel": "Percentage of waiver over the total paid dividends" } } }, "localname": "PercentageOfWaiverOfDividendsOverTotalPaidDividends", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEquitySharesBuyBackDetails" ], "xbrltype": "percentItemType" }, "snn_PercentileGeneratedByActuarialModel": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The percentage generated by the actuarial model which would not give rise to a significantly different outcome.", "label": "Percentile Generated By Actuarial Model", "terseLabel": "Percentage generated by actuarial model" } } }, "localname": "PercentileGeneratedByActuarialModel", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureProvisionsAndContingenciesCurrentAndNonCurrentProvisionsDetails" ], "xbrltype": "integerItemType" }, "snn_PeriodOfTimeCashFlowsOccurForCashFlowHedges": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Period of time cash flows relating to cash flow hedges are expected to occur.", "label": "Period of Time Cash Flows Occur for Cash Flow Hedges", "terseLabel": "Cash flow term (in months)" } } }, "localname": "PeriodOfTimeCashFlowsOccurForCashFlowHedges", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementForeignExchangeExposuresDetails" ], "xbrltype": "durationItemType" }, "snn_PeriodOfTimeOnMarketForInventoryAdjustmentFormula": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Period of time on the market when inventory adjustment formula is first applied.", "label": "Period of Time on Market for Inventory Adjustment Formula", "terseLabel": "Period of time on the market when inventory adjustment formula is first applied" } } }, "localname": "PeriodOfTimeOnMarketForInventoryAdjustmentFormula", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureInventoriesDetails" ], "xbrltype": "durationItemType" }, "snn_PeriodOfTimeProfitOrLossOnCashFlowHedgesWillBeDetermined": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Period of time after the cash flows for cash flow hedges occur when the profit or loss will be determined.", "label": "Period Of Time Profit or Loss On Cash Flow Hedges Will Be Determined", "terseLabel": "Profit or loss term (in months)" } } }, "localname": "PeriodOfTimeProfitOrLossOnCashFlowHedgesWillBeDetermined", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementForeignExchangeExposuresDetails" ], "xbrltype": "durationItemType" }, "snn_PostEmploymentBenefitExpenseCreditDefinedBenefitPlans": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The amount of post-employment benefit expense (credit) relating to defined benefit plans.", "label": "Post-employment Benefit Expense (Credit), Defined Benefit Plans", "terseLabel": "Defined benefit pension costs" } } }, "localname": "PostEmploymentBenefitExpenseCreditDefinedBenefitPlans", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsPlanAssetsDetails" ], "xbrltype": "monetaryItemType" }, "snn_PrivatePlacementDebtInHedgeRelationshipMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This member stands for private placement debt in a hedge relationship.", "label": "Private placement debt in a hedge relationship" } } }, "localname": "PrivatePlacementDebtInHedgeRelationshipMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementFairValueDetails" ], "xbrltype": "domainItemType" }, "snn_PrivatePlacementDebtMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This member stands for private placement debt.", "label": "Private placement debt" } } }, "localname": "PrivatePlacementDebtMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBasisOfPreparationDetails", "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsLiquidityRiskExposuresDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementFairValueDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementInterestRateExposuresDetails" ], "xbrltype": "domainItemType" }, "snn_PrivatePlacementDebtNotInHedgeRelationshipMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents about private placement debt not in hedge relationship.", "label": "Private placement debt not in a hedge relationship" } } }, "localname": "PrivatePlacementDebtNotInHedgeRelationshipMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementFairValueDetails" ], "xbrltype": "domainItemType" }, "snn_PrivatePlacementNotes": { "auth_ref": [], "calculation": { "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsBorrowingsAreRepayableDetails": { "order": 5.0, "parentTag": "snn_BorrowingsIncludingLeaseLiabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The amount of private placement notes issued by the entity.", "label": "Private Placement Notes" } } }, "localname": "PrivatePlacementNotes", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsBorrowingsAreRepayableDetails" ], "xbrltype": "monetaryItemType" }, "snn_PrivatePlacementNotesLessCurrentPortion": { "auth_ref": [], "calculation": { "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsNetDebtDetails": { "order": 1.0, "parentTag": "ifrs-full_Borrowings", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The amount of private placement notes issued by the entity, less current portion.", "label": "Private Placement Notes, Less Current Portion", "terseLabel": "Private placement notes" } } }, "localname": "PrivatePlacementNotesLessCurrentPortion", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsNetDebtDetails" ], "xbrltype": "monetaryItemType" }, "snn_PrivatePlacementNotesUndiscountedCashFlows": { "auth_ref": [], "calculation": { "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsYearEndFinancialLiabilitiesByContractualMaturityDetails": { "order": 6.0, "parentTag": "snn_FinancialLiabilitiesUndiscountedCashFlows", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The amount of contractual undiscounted cash flows in relation to private placement notes.", "label": "Private Placement Notes Undiscounted Cash Flows", "terseLabel": "Private placement notes" } } }, "localname": "PrivatePlacementNotesUndiscountedCashFlows", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsYearEndFinancialLiabilitiesByContractualMaturityDetails" ], "xbrltype": "monetaryItemType" }, "snn_ProceedsFromIssueOfOwnSharesAndOrdinaryShares": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The cash inflow from the issuing of ordinary shares and from sale or issue of treasury shares.", "label": "Proceeds From Issue of Own Shares and Ordinary Shares", "negatedLabel": "Proceeds from own Shares/issue of ordinary shares" } } }, "localname": "ProceedsFromIssueOfOwnSharesAndOrdinaryShares", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashFlowStatementCashOutflowsInflowsArisingFromFinancingActivitiesDetails" ], "xbrltype": "monetaryItemType" }, "snn_ProceedsFromPaymentsOfInvestments": { "auth_ref": [], "calculation": { "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement": { "order": 3.0, "parentTag": "ifrs-full_CashFlowsFromUsedInInvestingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The net cash received (paid) associated with acquisition or disposal of all investments.", "label": "Proceeds From (Payments Of) Investments", "verboseLabel": "Net (purchase)/proceeds from sale of investments" } } }, "localname": "ProceedsFromPaymentsOfInvestments", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement" ], "xbrltype": "monetaryItemType" }, "snn_ProceedsFromRepaymentsOfBorrowingsClassifiedAsFinancingActivities": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The cash inflow (outflow) from borrowings obtained (settled), classified as financing activities.", "label": "Proceeds From Repayments Of Borrowings Classified As Financing Activities", "terseLabel": "Net cash flow from borrowings" } } }, "localname": "ProceedsFromRepaymentsOfBorrowingsClassifiedAsFinancingActivities", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashFlowStatementReconciliationOfNetCashFlowToMovementInNetDebtDetails" ], "xbrltype": "monetaryItemType" }, "snn_ProductRelatedIntangibleAssetsMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This member stands for a class of intangible assets representing assets related to Products.", "label": "Product- related" } } }, "localname": "ProductRelatedIntangibleAssetsMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails", "http://www.smith-nephew.com/role/DisclosureIntangibleAssetsDetails" ], "xbrltype": "domainItemType" }, "snn_ProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The profit (loss) of associates and joint ventures accounted for using equity method.", "label": "Profit (Loss) of Associates and Joint Ventures Accounted for Using Equity Method", "terseLabel": "Profit after taxation" } } }, "localname": "ProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureInvestmentsInAssociatesAmountsRecognisedInBalanceSheetAndIncomeStatementDetails" ], "xbrltype": "monetaryItemType" }, "snn_ProfitLossOnDisposalOfInterestInAssociatesAndJointVenturesAccountedForUsingEquityMethod": { "auth_ref": [], "calculation": { "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement": { "order": 11.0, "parentTag": "ifrs-full_CashFlowsFromUsedInOperations", "weight": -1.0 }, "http://www.smith-nephew.com/role/StatementGroupIncomeStatement": { "order": 6.0, "parentTag": "ifrs-full_ProfitLossBeforeTax", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Profit (loss) on disposal of associates and joint ventures accounted for using the equity method.", "label": "Profit (Loss) On Disposal Of Interest In Associates and Joint Ventures Accounted For Using Equity Method", "negatedLabel": "Gain on disposal of interest in associate", "terseLabel": "Gain on disposal of interest in associate" } } }, "localname": "ProfitLossOnDisposalOfInterestInAssociatesAndJointVenturesAccountedForUsingEquityMethod", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEarningsPerOrdinaryShareCalculationOfBasicDilutedAndAdjustedEarningsPerShareDetails", "http://www.smith-nephew.com/role/DisclosureInvestmentsInAssociatesAmountsRecognisedInBalanceSheetAndIncomeStatementDetails", "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement", "http://www.smith-nephew.com/role/StatementGroupIncomeStatement" ], "xbrltype": "monetaryItemType" }, "snn_PropertyPlantAndEquipmentAndInventoryRecognisedAsOfAcquisitionDate": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The amount recognised as of the acquisition date for plant, property and equipment and inventory acquired in a business combination.", "label": "Property, plant and equipment and inventory recognised as of acquisition date", "terseLabel": "Property, plant and equipment and inventory" } } }, "localname": "PropertyPlantAndEquipmentAndInventoryRecognisedAsOfAcquisitionDate", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails" ], "xbrltype": "monetaryItemType" }, "snn_ProvisionForDoubtfulTradeReceivables": { "auth_ref": [], "calculation": { "http://www.smith-nephew.com/role/DisclosureTradeAndOtherReceivablesDetails": { "order": 2.0, "parentTag": "ifrs-full_CurrentTradeReceivables", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The amount of trade receivables estimated to be uncollectible.", "label": "Provision For Doubtful Trade Receivables", "negatedTerseLabel": "Less: Loss Allowance", "periodEndLabel": "At 31 December", "periodStartLabel": "At 1 January", "terseLabel": "Credit loss allowance" } } }, "localname": "ProvisionForDoubtfulTradeReceivables", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTradeAndOtherReceivablesDetails", "http://www.smith-nephew.com/role/DisclosureTradeAndOtherReceivablesMovementsInProvisionForBadAndDoubtfulDebtsDetails", "http://www.smith-nephew.com/role/DisclosureTradeAndOtherReceivablesTradeReceivablesPastDueDetails" ], "xbrltype": "monetaryItemType" }, "snn_ProvisionsRecognisedAsOfAcquisitionDate": { "auth_ref": [], "calculation": { "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails": { "order": 10.0, "parentTag": "ifrs-full_IdentifiableAssetsAcquiredLiabilitiesAssumed", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The amount recognised as of the acquisition date for provisions assumed in a business combination.", "label": "Provisions recognised as of acquisition date", "negatedLabel": "Provisions" } } }, "localname": "ProvisionsRecognisedAsOfAcquisitionDate", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails" ], "xbrltype": "monetaryItemType" }, "snn_ProvisionsReleasedToIncomeStatement": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The amount of provisions released to income statement.", "label": "Provisions Released To Income Statement", "negatedLabel": "Release to income statement" } } }, "localname": "ProvisionsReleasedToIncomeStatement", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureProvisionsAndContingenciesChangesInProvisionsDetails" ], "xbrltype": "monetaryItemType" }, "snn_PurchaseOfPropertyPlantAndEquipmentContractedButNotProvided": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Represents capital expenditures relating to property, plant and equipment contracted but not yet provided.", "label": "Purchase Of Property Plant And Equipment Contracted But Not Provided", "terseLabel": "Capital expenditures relating to property, plant and equipment contracted but not yet provided" } } }, "localname": "PurchaseOfPropertyPlantAndEquipmentContractedButNotProvided", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosurePropertyPlantAndEquipmentDetails" ], "xbrltype": "monetaryItemType" }, "snn_PurchaseOfTreasurySharesNumberOfShares": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Number of shares purchased into treasury shares.", "label": "Purchase Of Treasury Shares Number Of Shares", "terseLabel": "Shares purchased (in shares)" } } }, "localname": "PurchaseOfTreasurySharesNumberOfShares", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEquitySharesBuyBackDetails", "http://www.smith-nephew.com/role/DisclosureEquityTreasurySharesDetails" ], "xbrltype": "sharesItemType" }, "snn_ReceiptsFairValueMeasurementAssets": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The amount of receipts of assets.", "label": "Receipts, Fair Value Measurement, Assets", "terseLabel": "Receipts" } } }, "localname": "ReceiptsFairValueMeasurementAssets", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementMovementOfFinancialInstrumentsDetails" ], "xbrltype": "monetaryItemType" }, "snn_RemeasurementsFairValueMeasurementLiabilities": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The amount of remeasurements of fair value liability", "label": "Remeasurements, Fair Value Measurement Liabilities", "terseLabel": "Remeasurement" } } }, "localname": "RemeasurementsFairValueMeasurementLiabilities", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementMovementOfFinancialInstrumentsDetails" ], "xbrltype": "monetaryItemType" }, "snn_RepaymentsOfCurrentAndNonCurrentBorrowings": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The cash outflow for repayments of current and non-current borrowings.", "label": "Repayments Of Current And Non Current Borrowings", "terseLabel": "Repayment of bank loans" } } }, "localname": "RepaymentsOfCurrentAndNonCurrentBorrowings", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashFlowStatementCashOutflowsInflowsArisingFromFinancingActivitiesDetails" ], "xbrltype": "monetaryItemType" }, "snn_RequiredDecreaseInTradingMargin": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Required decrease in trading margin for CGU to be less than its carrying value.", "label": "Required Decrease in Trading Margin", "terseLabel": "Required decrease in trading margin" } } }, "localname": "RequiredDecreaseInTradingMargin", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureGoodwillDetails" ], "xbrltype": "percentItemType" }, "snn_RestOfWorldExcludingUnitedKingdomAndUnitedStatesOfAmericaMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This member stands for rest of the world except United Kingdom and United States of America.", "label": "Other Location" } } }, "localname": "RestOfWorldExcludingUnitedKingdomAndUnitedStatesOfAmericaMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationAssetsAndLiabilitiesByBusinessSegmentAndGeographyDetails" ], "xbrltype": "domainItemType" }, "snn_RestOfWorldExcludingUnitedKingdomMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This member stands for rest of the world except United Kingdom.", "label": "Outside the UK" } } }, "localname": "RestOfWorldExcludingUnitedKingdomMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureOperatingProfitInformationAboutNatureAndCostOfServicesDetails" ], "xbrltype": "domainItemType" }, "snn_RetainedEarningsAndOtherReservesMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This member stands for components of equity representing an entity's cumulative undistributed earnings or deficit and other reserves within equity.", "label": "Retained earnings and other reserves" } } }, "localname": "RetainedEarningsAndOtherReservesMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEquityEquityComponentsDetails" ], "xbrltype": "domainItemType" }, "snn_RetirementBenefitExpense": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The amount of retirement benefit expense.", "label": "Retirement Benefit Expense", "terseLabel": "Retirement benefit expense" } } }, "localname": "RetirementBenefitExpense", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsPlanAssetsDetails" ], "xbrltype": "monetaryItemType" }, "snn_RetirementBenefitNetInterestExpense": { "auth_ref": [], "calculation": { "http://www.smith-nephew.com/role/DisclosureInterestAndOtherFinanceCostsOtherFinanceCostsDetails": { "order": 1.0, "parentTag": "ifrs-full_OtherFinanceCost", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Represents the net interest expense for post retirement benefits.", "label": "Retirement Benefit, Net Interest Expense", "negatedLabel": "Retirement benefit net interest expense" } } }, "localname": "RetirementBenefitNetInterestExpense", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureInterestAndOtherFinanceCostsOtherFinanceCostsDetails" ], "xbrltype": "monetaryItemType" }, "snn_RetirementBenefitObligationMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This member stands for retirement benefit obligation.", "label": "Retirement benefit obligation" } } }, "localname": "RetirementBenefitObligationMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationDeferredTaxationDetails" ], "xbrltype": "domainItemType" }, "snn_RetirementHealthcareMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This member stands for Retirement healthcare.", "label": "Retirement Healthcare" } } }, "localname": "RetirementHealthcareMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsDetails" ], "xbrltype": "domainItemType" }, "snn_ScheduleOfEquityComponentsTableTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of equity components.", "label": "Schedule of Equity Components [Table Text Block]", "terseLabel": "Schedule of the capital" } } }, "localname": "ScheduleOfEquityComponentsTableTextBlock", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEquityTable" ], "xbrltype": "textBlockItemType" }, "snn_ScheduleOfInventoryDisclosureLineItems": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.", "label": "Schedule Of Inventory Disclosure [Line Items]" } } }, "localname": "ScheduleOfInventoryDisclosureLineItems", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureInventoriesDetails" ], "xbrltype": "stringItemType" }, "snn_ScheduleOfInventoryDisclosureTable": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Disclosure of information about inventory.", "label": "Schedule Of Inventory Disclosure [Table]" } } }, "localname": "ScheduleOfInventoryDisclosureTable", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureInventoriesDetails" ], "xbrltype": "stringItemType" }, "snn_SeniorNotesMaturingJanuary2022Member": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Senior Notes Maturing January 2022 Member.", "label": "3.46% Senior Notes Maturing January 2022" } } }, "localname": "SeniorNotesMaturingJanuary2022Member", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsLiquidityRiskExposuresDetails" ], "xbrltype": "domainItemType" }, "snn_SeniorNotesMaturingJanuary2024Member": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Senior Notes Maturing January 2024 Member.", "label": "3.89% Senior Notes Maturing January 2024" } } }, "localname": "SeniorNotesMaturingJanuary2024Member", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsLiquidityRiskExposuresDetails" ], "xbrltype": "domainItemType" }, "snn_SeniorNotesMaturingJanuary2026Member": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Senior Notes Maturing January 2026 Member.", "label": "3.99% Senior Notes Maturing January 2026" } } }, "localname": "SeniorNotesMaturingJanuary2026Member", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsLiquidityRiskExposuresDetails" ], "xbrltype": "domainItemType" }, "snn_SeniorNotesMaturingJune2027Member": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Senior Notes Maturing June 2027 Member.", "label": "2.83% Senior Notes Maturing June 2027" } } }, "localname": "SeniorNotesMaturingJune2027Member", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsLiquidityRiskExposuresDetails" ], "xbrltype": "domainItemType" }, "snn_SeniorNotesMaturingJune2028Member": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Senior Notes Maturing June 2028 Member.", "label": "2.90% Senior Notes Maturing June 2028" } } }, "localname": "SeniorNotesMaturingJune2028Member", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsLiquidityRiskExposuresDetails" ], "xbrltype": "domainItemType" }, "snn_SeniorNotesMaturingJune2029Member": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Senior Notes Maturing June 2029 Member.", "label": "2.97% Senior Notes Maturing June 2029" } } }, "localname": "SeniorNotesMaturingJune2029Member", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsLiquidityRiskExposuresDetails" ], "xbrltype": "domainItemType" }, "snn_SeniorNotesMaturingJune2030Member": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Senior Notes Maturing June 2030 Member.", "label": "2.99% Senior Notes" } } }, "localname": "SeniorNotesMaturingJune2030Member", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsLiquidityRiskExposuresDetails" ], "xbrltype": "domainItemType" }, "snn_SeniorNotesMaturingJune2032Member": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Senior Notes Maturing June 2032 Member.", "label": "3.09% Senior Notes" } } }, "localname": "SeniorNotesMaturingJune2032Member", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsLiquidityRiskExposuresDetails" ], "xbrltype": "domainItemType" }, "snn_SeniorNotesMaturingNovember2022Member": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Senior Notes Maturing November 2022 Member.", "label": "3.15% Senior Notes" } } }, "localname": "SeniorNotesMaturingNovember2022Member", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsLiquidityRiskExposuresDetails" ], "xbrltype": "domainItemType" }, "snn_SeniorNotesMaturingNovember2023Member": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Senior Notes Maturing November 2023 Member.", "label": "3.26% Senior Notes" } } }, "localname": "SeniorNotesMaturingNovember2023Member", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsLiquidityRiskExposuresDetails" ], "xbrltype": "domainItemType" }, "snn_SeniorNotesMaturingNovember2024Member": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Senior Notes Maturing November 2024 Member.", "label": "3.36% Senior Notes" } } }, "localname": "SeniorNotesMaturingNovember2024Member", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsLiquidityRiskExposuresDetails" ], "xbrltype": "domainItemType" }, "snn_SensitivityAnalysisPercentageOfReasonablyPossibleDecreaseInRiskVariable": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The reasonably possible percentage of decrease in the relevant risk variable used to determine the financial impact in a sensitivity analysis.", "label": "Sensitivity Analysis, Percentage of Reasonably Possible Decrease in Risk Variable", "terseLabel": "Percentage of decrease in risk variable used for sensitivity analysis" } } }, "localname": "SensitivityAnalysisPercentageOfReasonablyPossibleDecreaseInRiskVariable", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementForeignExchangeExposuresDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementInterestRateExposuresDetails" ], "xbrltype": "percentItemType" }, "snn_SensitivityAnalysisPercentageOfReasonablyPossibleIncreaseInRiskVariable": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The reasonably possible percentage of increase in the relevant risk variable used to determine the financial impact in a sensitivity analysis.", "label": "Sensitivity Analysis, Percentage of Reasonably Possible Increase in Risk Variable", "terseLabel": "Percentage of increase in risk variable used for sensitivity analysis" } } }, "localname": "SensitivityAnalysisPercentageOfReasonablyPossibleIncreaseInRiskVariable", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementForeignExchangeExposuresDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementInterestRateExposuresDetails" ], "xbrltype": "percentItemType" }, "snn_SettlementOfCurrencySwaps": { "auth_ref": [], "calculation": { "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement": { "order": 8.0, "parentTag": "ifrs-full_CashFlowsFromUsedInFinancingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The cash inflow (outflow) on settlement of currency swaps.", "label": "Settlement of Currency Swaps", "negatedLabel": "Settlement of currency swaps", "verboseLabel": "Cash outflows/(inflows) from other" } } }, "localname": "SettlementOfCurrencySwaps", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashFlowStatementCashOutflowsInflowsArisingFromFinancingActivitiesDetails", "http://www.smith-nephew.com/role/DisclosureCashFlowStatementReconciliationOfNetCashFlowToMovementInNetDebtDetails", "http://www.smith-nephew.com/role/StatementGroupCashFlowStatement" ], "xbrltype": "monetaryItemType" }, "snn_ShareOfAssetsOfAssociatesAndJointVenturesAccountedForUsingEquityMethod": { "auth_ref": [], "calculation": { "http://www.smith-nephew.com/role/DisclosureInvestmentsInAssociatesSummarisedBalanceSheetDetails": { "order": 1.0, "parentTag": "ifrs-full_InvestmentsInAssociatesAccountedForUsingEquityMethod", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The entity's share of assets from continuing operations of associates and joint ventures accounted for using the equity method.", "label": "Share of assets of associates and joint ventures accounted for using equity method", "terseLabel": "Group's share of net assets" } } }, "localname": "ShareOfAssetsOfAssociatesAndJointVenturesAccountedForUsingEquityMethod", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureInvestmentsInAssociatesSummarisedBalanceSheetDetails" ], "xbrltype": "monetaryItemType" }, "snn_ShareOptionActivitiesAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "No definition.", "label": "Share Option Activities Abstract", "terseLabel": "Share option activities" } } }, "localname": "ShareOptionActivitiesAbstract", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureOtherNotesToAccountsStockOptionsOutstandingDetails" ], "xbrltype": "stringItemType" }, "snn_SharesTransferredFromTreasury": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Values of shares transferred from treasury shares.", "label": "Shares Transferred From Treasury", "terseLabel": "Shares transferred from treasury" } } }, "localname": "SharesTransferredFromTreasury", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEquityTreasurySharesDetails" ], "xbrltype": "monetaryItemType" }, "snn_SharesTransferredToBeneficiaries": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Number of shares transferred to beneficiaries.", "label": "Shares Transferred To Beneficiaries", "negatedLabel": "Shares transferred to Group beneficiaries (in shares)" } } }, "localname": "SharesTransferredToBeneficiaries", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEquityTreasurySharesDetails" ], "xbrltype": "sharesItemType" }, "snn_ShortDatedCreditFundAmountContributedToFairValueOfPlanAssets": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The amount that short dated credit fund constitutes of the fair value of defined benefit plan assets.", "label": "Short Dated Credit Fund Amount Contributed to Fair Value of Plan Assets", "terseLabel": "Short dated credit fund" } } }, "localname": "ShortDatedCreditFundAmountContributedToFairValueOfPlanAssets", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsPlanAssetsDetails" ], "xbrltype": "monetaryItemType" }, "snn_ShortTermBorrowingMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This member stands for short term borrowings.", "label": "Due within one year" } } }, "localname": "ShortTermBorrowingMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashFlowStatementAnalysisOfNetDebtDetails" ], "xbrltype": "domainItemType" }, "snn_SoftwareTransferredFromAssetsInCourseOfConstruction": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Software transferred from assets in course of construction.", "label": "Software Transferred From Assets in Course of Construction", "terseLabel": "Software transferred from assets in course of construction" } } }, "localname": "SoftwareTransferredFromAssetsInCourseOfConstruction", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosurePropertyPlantAndEquipmentDetails" ], "xbrltype": "monetaryItemType" }, "snn_SportsMedicineAndEntMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Sports Medicine and ENT segment.", "label": "Sports Medicine & ENT" } } }, "localname": "SportsMedicineAndEntMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationDetails", "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationTradingAndOperatingProfitByBusinessSegmentDetails", "http://www.smith-nephew.com/role/DisclosureGoodwillDetails" ], "xbrltype": "domainItemType" }, "snn_SportsMedicineJointRepairMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This member stands for the entity's Sports Medicine Joint Repair.", "label": "Sports Medicine Joint Repair" } } }, "localname": "SportsMedicineJointRepairMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationDetails" ], "xbrltype": "domainItemType" }, "snn_SyndicatedRevolvingCreditFacilityMaturingJune2025Member": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Information pertaining to the Syndicated Revolving Credit Facility maturing June 2025.", "label": "Syndicated Revolving Credit Facility Maturing June 2025" } } }, "localname": "SyndicatedRevolvingCreditFacilityMaturingJune2025Member", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsLiquidityRiskExposuresDetails" ], "xbrltype": "domainItemType" }, "snn_TaxBenefitArisingFromUSTaxReform": { "auth_ref": [], "calculation": { "http://www.smith-nephew.com/role/DisclosureTaxationFactorsAffectingFutureTaxChargesDetails": { "order": 3.0, "parentTag": "ifrs-full_IncomeTaxExpenseContinuingOperations", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The amount of tax benefit arising from U.S. Tax Reform.", "label": "Tax Benefit Arising From U S Tax Reform", "negatedLabel": "Impact of US tax reform" } } }, "localname": "TaxBenefitArisingFromUSTaxReform", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEarningsPerOrdinaryShareCalculationOfBasicDilutedAndAdjustedEarningsPerShareDetails", "http://www.smith-nephew.com/role/DisclosureTaxationFactorsAffectingFutureTaxChargesDetails" ], "xbrltype": "monetaryItemType" }, "snn_TaxBenefitArisingResearchAndDevelopmentCredits": { "auth_ref": [], "calculation": { "http://www.smith-nephew.com/role/DisclosureTaxationFactorsAffectingFutureTaxChargesDetails": { "order": 4.0, "parentTag": "ifrs-full_IncomeTaxExpenseContinuingOperations", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The amount of tax benefit arising from research and development credits.", "label": "Tax Benefit Arising Research and Development Credits", "negatedLabel": "R&D credits" } } }, "localname": "TaxBenefitArisingResearchAndDevelopmentCredits", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationFactorsAffectingFutureTaxChargesDetails" ], "xbrltype": "monetaryItemType" }, "snn_TaxationOnExcludedItems": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The amount of tax as a consequence of acquisition and disposals, restructuring and rationalisation costs, amortisation and impairment of acquisition intangibles and legal and other.", "label": "Taxation on Excluded Items", "negatedLabel": "Taxation on excluded items" } } }, "localname": "TaxationOnExcludedItems", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEarningsPerOrdinaryShareCalculationOfBasicDilutedAndAdjustedEarningsPerShareDetails" ], "xbrltype": "monetaryItemType" }, "snn_TaxationOnExcludedItemsIncludingTaxBenefitOfUSTaxReform": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The amount of tax as a consequence of US tax reform, acquisition and disposals, restructuring and rationalisation costs, amortisation and impairment of acquisition intangibles and legal and other.", "label": "Taxation on Excluded Items, Including Tax Benefit of U S Tax Reform", "terseLabel": "Taxation on excluded items, including US tax reform" } } }, "localname": "TaxationOnExcludedItemsIncludingTaxBenefitOfUSTaxReform", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationTaxationAttributableToGroupDetails" ], "xbrltype": "monetaryItemType" }, "snn_TermLoanMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents the information pertaining to term loan.", "label": "Term loan" } } }, "localname": "TermLoanMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBasisOfPreparationDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementNetInvestmentHedgeDetails" ], "xbrltype": "domainItemType" }, "snn_TermOfExpectedProvisionUtilisation": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents the expected term of provision utilisation.", "label": "Term Of Expected Provision Utilisation", "terseLabel": "Term of expected provision utilisation" } } }, "localname": "TermOfExpectedProvisionUtilisation", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureProvisionsAndContingenciesCurrentAndNonCurrentProvisionsDetails" ], "xbrltype": "durationItemType" }, "snn_TradeAndOtherPayablesCurrentExcludingDerivativesAndAcquisitionConsideration": { "auth_ref": [], "calculation": { "http://www.smith-nephew.com/role/DisclosureTradeAndOtherPayablesDetails": { "order": 1.0, "parentTag": "ifrs-full_TradeAndOtherCurrentPayables", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Represents trade and other current payables, excluding derivative liabilities and acquisition consideration.", "label": "Trade And Other Payables, Current, Excluding Derivatives And Acquisition Consideration", "terseLabel": "Trade and other payables" } } }, "localname": "TradeAndOtherPayablesCurrentExcludingDerivativesAndAcquisitionConsideration", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTradeAndOtherPayablesDetails" ], "xbrltype": "monetaryItemType" }, "snn_TradeAndOtherPayablesMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This member stands for trade and other payables.", "label": "Trade and other payables" } } }, "localname": "TradeAndOtherPayablesMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementFairValueDetails" ], "xbrltype": "domainItemType" }, "snn_TradeAndOtherReceivablesMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents about trade and other receivables.", "label": "Trade and other receivables." } } }, "localname": "TradeAndOtherReceivablesMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementFairValueDetails" ], "xbrltype": "domainItemType" }, "snn_TradeReceivablesAndPrepaymentsRecognisedAsOfAcquisitionDate": { "auth_ref": [], "calculation": { "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails": { "order": 8.0, "parentTag": "ifrs-full_IdentifiableAssetsAcquiredLiabilitiesAssumed", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The amount recognised as of the acquisition date for trade receivables and prepayments assumed in a business combination.", "label": "Trade receivables and prepayments recognised as of acquisition date", "verboseLabel": "Trade and other receivables" } } }, "localname": "TradeReceivablesAndPrepaymentsRecognisedAsOfAcquisitionDate", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails" ], "xbrltype": "monetaryItemType" }, "snn_TradeReceivablesGrossCurrent": { "auth_ref": [], "calculation": { "http://www.smith-nephew.com/role/DisclosureTradeAndOtherReceivablesDetails": { "order": 1.0, "parentTag": "ifrs-full_CurrentTradeReceivables", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The amount of current trade receivables before applying the provision for doubtful accounts.", "label": "Trade Receivables Gross, Current", "terseLabel": "Trade receivables" } } }, "localname": "TradeReceivablesGrossCurrent", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTradeAndOtherReceivablesDetails", "http://www.smith-nephew.com/role/DisclosureTradeAndOtherReceivablesTradeReceivablesPastDueDetails" ], "xbrltype": "monetaryItemType" }, "snn_TradingAndNonTradingTaxLossesResultingInDeferredTaxAssets": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Trading and non-trading tax losses resulting in deferred tax assets.", "label": "Trading and Non-trading Tax Losses Resulting in Deferred Tax Assets", "terseLabel": "Trading and non-trading tax losses resulting in deferred tax assets" } } }, "localname": "TradingAndNonTradingTaxLossesResultingInDeferredTaxAssets", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationDeferredTaxationDetails" ], "xbrltype": "monetaryItemType" }, "snn_TradingProfitManagementPerformanceMetric": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The trading profit, management performance metric.", "label": "Trading Profit, Management Performance Metric", "terseLabel": "Operating profit" } } }, "localname": "TradingProfitManagementPerformanceMetric", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationTradingAndOperatingProfitByBusinessSegmentDetails" ], "xbrltype": "monetaryItemType" }, "snn_TradingTaxLossesMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This member stands for trading tax losses have been incurred and are carried forward for use against future taxable profit.", "label": "Trading tax losses" } } }, "localname": "TradingTaxLossesMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationDeferredTaxationDetails" ], "xbrltype": "domainItemType" }, "snn_TransactionAmountRelatedPartyTransactions": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Transaction amount with related parties.", "label": "Transaction Amount, Related Party Transactions", "terseLabel": "Transaction amount" } } }, "localname": "TransactionAmountRelatedPartyTransactions", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureOtherNotesToAccountsRelatedPartyTransactionsDetails" ], "xbrltype": "monetaryItemType" }, "snn_TransfersOfSoftwareFromPropertyPlantAndEquipment": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The value of software transferred from property, plant and equipment to intangibles.", "label": "Transfers of Software from Property, Plant and Equipment", "terseLabel": "Value of software transferred" } } }, "localname": "TransfersOfSoftwareFromPropertyPlantAndEquipment", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureIntangibleAssetsDetails" ], "xbrltype": "monetaryItemType" }, "snn_TraumaMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This member stands for the Trauma product line.", "label": "Trauma & Extremities" } } }, "localname": "TraumaMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationDetails" ], "xbrltype": "domainItemType" }, "snn_TreasurySharesExcludingEmployeeShareTrustMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This member stands for treasury shares held by the company, excluding the shares held in the Employees' Share Trust.", "label": "Treasury shares excluding Employees' Share Trust" } } }, "localname": "TreasurySharesExcludingEmployeeShareTrustMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureEquitySharesBuyBackDetails", "http://www.smith-nephew.com/role/DisclosureEquityTreasurySharesDetails" ], "xbrltype": "domainItemType" }, "snn_TuskerMedicalInc.Member": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents about Tusker Medical, Inc.", "label": "Tusker Medical, Inc." } } }, "localname": "TuskerMedicalInc.Member", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails", "http://www.smith-nephew.com/role/DisclosureAcquisitionsTables" ], "xbrltype": "domainItemType" }, "snn_TwoSmallerAcquisitionsInSpheresOfRemotePhysicalTherapyAndArthroscopicEnablingTechnologyMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents two smaller acquisitions in Spheres of Remote Physical Therapy and Arthroscopic Enabling Technology.", "label": "Two smaller acquisitions in spheres of remote physical therapy and arthroscopic enabling technology" } } }, "localname": "TwoSmallerAcquisitionsInSpheresOfRemotePhysicalTherapyAndArthroscopicEnablingTechnologyMember", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureAcquisitionsDetails" ], "xbrltype": "domainItemType" }, "snn_UnusedCapitalLosses": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The gross amount of unused capital losses.", "label": "Unused Capital Losses", "terseLabel": "Gross unused capital losses" } } }, "localname": "UnusedCapitalLosses", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationDeferredTaxationDetails" ], "xbrltype": "monetaryItemType" }, "snn_UnusedTradingTaxLosses": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The amount of unused trading tax losses.", "label": "Unused Trading Tax Losses", "terseLabel": "Unused gross trading tax losses" } } }, "localname": "UnusedTradingTaxLosses", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationDeferredTaxationDetails" ], "xbrltype": "monetaryItemType" }, "snn_UsefulLife": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The estimated useful lives of items of property, plant and equipment.", "label": "Useful Life" } } }, "localname": "UsefulLife", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosurePropertyPlantAndEquipmentDetails" ], "xbrltype": "durationItemType" }, "snn_UsefulLivesPropertyPlantAndEquipment": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The estimated useful lives used for property, plant and equipment.", "label": "Useful Lives, Property Plant And Equipment", "terseLabel": "Useful economic life" } } }, "localname": "UsefulLivesPropertyPlantAndEquipment", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureInventoriesDetails" ], "xbrltype": "durationItemType" }, "snn_WeightedAverageLossRateAsPercentReceivables": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Weighted average loss rate for receivables.", "label": "Weighted Average Loss Rate As Percent Receivables", "terseLabel": "Weighted average loss rate" } } }, "localname": "WeightedAverageLossRateAsPercentReceivables", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTradeAndOtherReceivablesTradeReceivablesPastDueDetails" ], "xbrltype": "percentItemType" }, "snn_WithholdingTaxOnUnremittedEarnings": { "auth_ref": [], "calculation": { "http://www.smith-nephew.com/role/DisclosureTaxationFactorsAffectingFutureTaxChargesDetails": { "order": 7.0, "parentTag": "ifrs-full_IncomeTaxExpenseContinuingOperations", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The amount that represents the difference between the tax expense (income) and the product of the accounting profit multiplied by the applicable tax rate(s) that relates to withholding tax on unremitted earnings.", "label": "Withholding Tax on Unremitted Earnings", "terseLabel": "Withholding tax on unremitted earnings" } } }, "localname": "WithholdingTaxOnUnremittedEarnings", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTaxationFactorsAffectingFutureTaxChargesDetails" ], "xbrltype": "monetaryItemType" }, "snn_WriteOffOfTradeReceivables": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The amount of trade receivables written off as uncollectible during the period.", "label": "Write-Off Of Trade Receivables", "negatedLabel": "Utilisation of provision" } } }, "localname": "WriteOffOfTradeReceivables", "nsuri": "http://www.smith-nephew.com/20211231", "presentation": [ "http://www.smith-nephew.com/role/DisclosureTradeAndOtherReceivablesMovementsInProvisionForBadAndDoubtfulDebtsDetails" ], "xbrltype": "monetaryItemType" }, "srt_CurrencyAxis": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Currency [Axis]" } } }, "localname": "CurrencyAxis", "nsuri": "http://fasb.org/srt/2021-01-31", "presentation": [ "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementForeignExchangeExposuresDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementInterestBearingAssetsDetails", "http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementInterestBearingLiabilitiesDetails", "http://www.smith-nephew.com/role/DisclosureTradeAndOtherReceivablesTradeReceivablesDenominatedInMajorCurrenciesDetails" ], "xbrltype": "stringItemType" }, "srt_RestatementAxis": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Revision of Prior Period [Axis]" } } }, "localname": "RestatementAxis", "nsuri": "http://fasb.org/srt/2021-01-31", "presentation": [ "http://www.smith-nephew.com/role/DisclosurePropertyPlantAndEquipmentDetails" ], "xbrltype": "stringItemType" }, "srt_RestatementDomain": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Revision of Prior Period [Domain]" } } }, "localname": "RestatementDomain", "nsuri": "http://fasb.org/srt/2021-01-31", "presentation": [ "http://www.smith-nephew.com/role/DisclosurePropertyPlantAndEquipmentDetails" ], "xbrltype": "domainItemType" } }, "unitCount": 15 } }, "std_ref": { "r0": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "1", "Paragraph": "10", "Subparagraph": "e", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_10_e&doctype=Standard", "URIDate": "2021-03-24" }, "r1": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "1", "Paragraph": "102", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_102&doctype=Standard", "URIDate": "2021-03-24" }, "r10": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "1", "Paragraph": "107", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_107&doctype=Standard", "URIDate": "2021-03-24" }, "r100": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "19", "Paragraph": "141", "Subparagraph": "a", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_141_a&doctype=Standard", "URIDate": "2021-03-24" }, "r101": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "19", "Paragraph": "141", "Subparagraph": "b", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_141_b&doctype=Standard", "URIDate": "2021-03-24" }, "r102": { "Clause": "i", "IssueDate": "2021-01-01", "Name": "IAS", "Number": "19", "Paragraph": "141", "Subparagraph": "c", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_141_c_i&doctype=Standard", "URIDate": "2021-03-24" }, "r103": { "Clause": "ii", "IssueDate": "2021-01-01", "Name": "IAS", "Number": "19", "Paragraph": "141", "Subparagraph": "c", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_141_c_ii&doctype=Standard", "URIDate": "2021-03-24" }, "r104": { "Clause": "iii", "IssueDate": "2021-01-01", "Name": "IAS", "Number": "19", "Paragraph": "141", "Subparagraph": "c", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_141_c_iii&doctype=Standard", "URIDate": "2021-03-24" }, "r105": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "19", "Paragraph": "141", "Subparagraph": "d", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_141_d&doctype=Standard", "URIDate": "2021-03-24" }, "r106": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "19", "Paragraph": "141", "Subparagraph": "e", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_141_e&doctype=Standard", "URIDate": "2021-03-24" }, "r107": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "19", "Paragraph": "141", "Subparagraph": "f", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_141_f&doctype=Standard", "URIDate": "2021-03-24" }, "r108": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "19", "Paragraph": "141", "Subparagraph": "g", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_141_g&doctype=Standard", "URIDate": "2021-03-24" }, "r109": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "19", "Paragraph": "142", "Subparagraph": "a", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_142_a&doctype=Standard", "URIDate": "2021-03-24" }, "r11": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "1", "Paragraph": "108", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_108&doctype=Standard", "URIDate": "2021-03-24" }, "r110": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "19", "Paragraph": "142", "Subparagraph": "b", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_142_b&doctype=Standard", "URIDate": "2021-03-24" }, "r111": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "19", "Paragraph": "142", "Subparagraph": "d", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_142_d&doctype=Standard", "URIDate": "2021-03-24" }, "r112": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "19", "Paragraph": "142", "Subparagraph": "f", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_142_f&doctype=Standard", "URIDate": "2021-03-24" }, "r113": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "19", "Paragraph": "142", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_142&doctype=Standard", "URIDate": "2021-03-24" }, "r114": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "19", "Paragraph": "144", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_144&doctype=Standard", "URIDate": "2021-03-24" }, "r115": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "19", "Paragraph": "145", "Subparagraph": "a", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_145_a&doctype=Standard", "URIDate": "2021-03-24" }, "r116": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "19", "Paragraph": "145", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_145&doctype=Standard", "URIDate": "2021-03-24" }, "r117": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "19", "Paragraph": "147", "Subparagraph": "b", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_147_b&doctype=Standard", "URIDate": "2021-03-24" }, "r118": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "19", "Paragraph": "147", "Subparagraph": "c", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_147_c&doctype=Standard", "URIDate": "2021-03-24" }, "r119": { "Clause": "iii", "IssueDate": "2021-01-01", "Name": "IAS", "Number": "19", "Paragraph": "148", "Subparagraph": "d", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_148_d_iii&doctype=Standard", "URIDate": "2021-03-24" }, "r12": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "1", "Paragraph": "112", "Subparagraph": "c", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_112_c&doctype=Standard", "URIDate": "2021-03-24" }, "r120": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "19", "Paragraph": "171", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_171&doctype=Standard", "URIDate": "2021-03-24" }, "r121": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "19", "Paragraph": "5", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_5&doctype=Standard", "URIDate": "2021-03-24" }, "r122": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "19", "Paragraph": "53", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_53&doctype=Standard", "URIDate": "2021-03-24" }, "r123": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "19", "Paragraph": "57", "Subparagraph": "a", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_57_a&doctype=Standard", "URIDate": "2021-03-24" }, "r124": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "19", "Paragraph": "9", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_9&doctype=Standard", "URIDate": "2021-03-24" }, "r125": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "19", "Section": "Scope", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&doctype=Standard&dita_xref=IAS19_g2-7_TI", "URIDate": "2021-03-24" }, "r126": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "2", "Paragraph": "36", "Subparagraph": "a", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=2&code=ifrs-tx-2021-en-r&anchor=para_36_a&doctype=Standard", "URIDate": "2021-03-24" }, "r127": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "2", "Paragraph": "36", "Subparagraph": "b", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=2&code=ifrs-tx-2021-en-r&anchor=para_36_b&doctype=Standard", "URIDate": "2021-03-24" }, "r128": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "2", "Paragraph": "36", "Subparagraph": "d", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=2&code=ifrs-tx-2021-en-r&anchor=para_36_d&doctype=Standard", "URIDate": "2021-03-24" }, "r129": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "2", "Paragraph": "37", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=2&code=ifrs-tx-2021-en-r&anchor=para_37&doctype=Standard", "URIDate": "2021-03-24" }, "r13": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "1", "Paragraph": "117", "Subparagraph": "a", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_117_a&doctype=Standard", "URIDate": "2021-03-24" }, "r130": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "2", "Section": "Disclosure", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=2&code=ifrs-tx-2021-en-r&doctype=Standard&dita_xref=IAS02_g36-39__IAS02_g36-39_TI", "URIDate": "2021-03-24" }, "r131": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "21", "Paragraph": "52", "Subparagraph": "b", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=21&code=ifrs-tx-2021-en-r&anchor=para_52_b&doctype=Standard", "URIDate": "2021-03-24" }, "r132": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "21", "Section": "Disclosure", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=21&code=ifrs-tx-2021-en-r&doctype=Standard&dita_xref=IAS21_g51-57_TI", "URIDate": "2021-03-24" }, "r133": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "24", "Paragraph": "17", "Subparagraph": "a", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=24&code=ifrs-tx-2021-en-r&anchor=para_17_a&doctype=Standard", "URIDate": "2021-03-24" }, "r134": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "24", "Paragraph": "17", "Subparagraph": "b", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=24&code=ifrs-tx-2021-en-r&anchor=para_17_b&doctype=Standard", "URIDate": "2021-03-24" }, "r135": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "24", "Paragraph": "17", "Subparagraph": "c", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=24&code=ifrs-tx-2021-en-r&anchor=para_17_c&doctype=Standard", "URIDate": "2021-03-24" }, "r136": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "24", "Paragraph": "17", "Subparagraph": "e", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=24&code=ifrs-tx-2021-en-r&anchor=para_17_e&doctype=Standard", "URIDate": "2021-03-24" }, "r137": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "24", "Paragraph": "17", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=24&code=ifrs-tx-2021-en-r&anchor=para_17&doctype=Standard", "URIDate": "2021-03-24" }, "r138": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "24", "Paragraph": "19", "Subparagraph": "d", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=24&code=ifrs-tx-2021-en-r&anchor=para_19_d&doctype=Standard", "URIDate": "2021-03-24" }, "r139": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "24", "Paragraph": "19", "Subparagraph": "f", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=24&code=ifrs-tx-2021-en-r&anchor=para_19_f&doctype=Standard", "URIDate": "2021-03-24" }, "r14": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "1", "Paragraph": "117", "Subparagraph": "b", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_117_b&doctype=Standard", "URIDate": "2021-03-24" }, "r140": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "24", "Paragraph": "19", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=24&code=ifrs-tx-2021-en-r&anchor=para_19&doctype=Standard", "URIDate": "2021-03-24" }, "r141": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "24", "Section": "Disclosures", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=24&code=ifrs-tx-2021-en-r&doctype=Standard&dita_xref=IAS24_g13-24_TI", "URIDate": "2021-03-24" }, "r142": { "Clause": "vi", "IssueDate": "2021-01-01", "Name": "IAS", "Number": "26", "Paragraph": "35", "Subparagraph": "b", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=26&code=ifrs-tx-2021-en-r&anchor=para_35_b_vi&doctype=Standard", "URIDate": "2021-03-24" }, "r143": { "Clause": "viii", "IssueDate": "2021-01-01", "Name": "IAS", "Number": "26", "Paragraph": "35", "Subparagraph": "b", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=26&code=ifrs-tx-2021-en-r&anchor=para_35_b_viii&doctype=Standard", "URIDate": "2021-03-24" }, "r144": { "Clause": "iii", "IssueDate": "2021-01-01", "Name": "IAS", "Number": "27", "Paragraph": "16", "Subparagraph": "b", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=27&code=ifrs-tx-2021-en-r&anchor=para_16_b_iii&doctype=Standard", "URIDate": "2021-03-24" }, "r145": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "27", "Paragraph": "16", "Subparagraph": "b", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=27&code=ifrs-tx-2021-en-r&anchor=para_16_b&doctype=Standard", "URIDate": "2021-03-24" }, "r146": { "Clause": "iii", "IssueDate": "2021-01-01", "Name": "IAS", "Number": "27", "Paragraph": "17", "Subparagraph": "b", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=27&code=ifrs-tx-2021-en-r&anchor=para_17_b_iii&doctype=Standard", "URIDate": "2021-03-24" }, "r147": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "27", "Paragraph": "17", "Subparagraph": "b", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=27&code=ifrs-tx-2021-en-r&anchor=para_17_b&doctype=Standard", "URIDate": "2021-03-24" }, "r148": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "32", "Paragraph": "34", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=32&code=ifrs-tx-2021-en-r&anchor=para_34&doctype=Standard", "URIDate": "2021-03-24" }, "r149": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "32", "Paragraph": "IE33", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=32&code=ifrs-tx-2021-en-r&anchor=para_IE33&doctype=Illustrative%20Examples", "URIDate": "2021-03-24" }, "r15": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "1", "Paragraph": "137", "Subparagraph": "a", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_137_a&doctype=Standard", "URIDate": "2021-03-24" }, "r150": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "33", "Paragraph": "66", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=33&code=ifrs-tx-2021-en-r&anchor=para_66&doctype=Standard", "URIDate": "2021-03-24" }, "r151": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "33", "Paragraph": "67", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=33&code=ifrs-tx-2021-en-r&anchor=para_67&doctype=Standard", "URIDate": "2021-03-24" }, "r152": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "33", "Paragraph": "70", "Subparagraph": "b", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=33&code=ifrs-tx-2021-en-r&anchor=para_70_b&doctype=Standard", "URIDate": "2021-03-24" }, "r153": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "33", "Section": "Disclosure", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=33&code=ifrs-tx-2021-en-r&doctype=Standard&dita_xref=IAS33_g70-73A_TI", "URIDate": "2021-03-24" }, "r154": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "34", "Paragraph": "16A", "Subparagraph": "f", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=34&code=ifrs-tx-2021-en-r&anchor=para_16A_f&doctype=Standard", "URIDate": "2021-03-24" }, "r155": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "36", "Paragraph": "126", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=36&code=ifrs-tx-2021-en-r&anchor=para_126&doctype=Standard", "URIDate": "2021-03-24" }, "r156": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "36", "Paragraph": "127", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=36&code=ifrs-tx-2021-en-r&anchor=para_127&doctype=Standard", "URIDate": "2021-03-24" }, "r157": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "36", "Paragraph": "130", "Subparagraph": "b", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=36&code=ifrs-tx-2021-en-r&anchor=para_130_b&doctype=Standard", "URIDate": "2021-03-24" }, "r158": { "Clause": "ii", "IssueDate": "2021-01-01", "Name": "IAS", "Number": "36", "Paragraph": "130", "Subparagraph": "d", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=36&code=ifrs-tx-2021-en-r&anchor=para_130_d_ii&doctype=Standard", "URIDate": "2021-03-24" }, "r159": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "36", "Paragraph": "130", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=36&code=ifrs-tx-2021-en-r&anchor=para_130&doctype=Standard", "URIDate": "2021-03-24" }, "r16": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "1", "Paragraph": "54", "Subparagraph": "a", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_54_a&doctype=Standard", "URIDate": "2021-03-24" }, "r160": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "36", "Paragraph": "134", "Subparagraph": "a", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=36&code=ifrs-tx-2021-en-r&anchor=para_134_a&doctype=Standard", "URIDate": "2021-03-24" }, "r161": { "Clause": "iv", "IssueDate": "2021-01-01", "Name": "IAS", "Number": "36", "Paragraph": "134", "Subparagraph": "d", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=36&code=ifrs-tx-2021-en-r&anchor=para_134_d_iv&doctype=Standard", "URIDate": "2021-03-24" }, "r162": { "Clause": "v", "IssueDate": "2021-01-01", "Name": "IAS", "Number": "36", "Paragraph": "134", "Subparagraph": "d", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=36&code=ifrs-tx-2021-en-r&anchor=para_134_d_v&doctype=Standard", "URIDate": "2021-03-24" }, "r163": { "Clause": "iv", "IssueDate": "2021-01-01", "Name": "IAS", "Number": "36", "Paragraph": "134", "Subparagraph": "e", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=36&code=ifrs-tx-2021-en-r&anchor=para_134_e_iv&doctype=Standard", "URIDate": "2021-03-24" }, "r164": { "Clause": "v", "IssueDate": "2021-01-01", "Name": "IAS", "Number": "36", "Paragraph": "134", "Subparagraph": "e", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=36&code=ifrs-tx-2021-en-r&anchor=para_134_e_v&doctype=Standard", "URIDate": "2021-03-24" }, "r165": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "36", "Paragraph": "135", "Subparagraph": "a", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=36&code=ifrs-tx-2021-en-r&anchor=para_135_a&doctype=Standard", "URIDate": "2021-03-24" }, "r166": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "37", "Paragraph": "70", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=37&code=ifrs-tx-2021-en-r&anchor=para_70&doctype=Standard", "URIDate": "2021-03-24" }, "r167": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "37", "Paragraph": "84", "Subparagraph": "a", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=37&code=ifrs-tx-2021-en-r&anchor=para_84_a&doctype=Standard", "URIDate": "2021-03-24" }, "r168": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "37", "Paragraph": "84", "Subparagraph": "b", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=37&code=ifrs-tx-2021-en-r&anchor=para_84_b&doctype=Standard", "URIDate": "2021-03-24" }, "r169": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "37", "Paragraph": "84", "Subparagraph": "c", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=37&code=ifrs-tx-2021-en-r&anchor=para_84_c&doctype=Standard", "URIDate": "2021-03-24" }, "r17": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "1", "Paragraph": "54", "Subparagraph": "c", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_54_c&doctype=Standard", "URIDate": "2021-03-24" }, "r170": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "37", "Paragraph": "84", "Subparagraph": "e", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=37&code=ifrs-tx-2021-en-r&anchor=para_84_e&doctype=Standard", "URIDate": "2021-03-24" }, "r171": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "37", "Paragraph": "84", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=37&code=ifrs-tx-2021-en-r&anchor=para_84&doctype=Standard", "URIDate": "2021-03-24" }, "r172": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "37", "Paragraph": "87", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=37&code=ifrs-tx-2021-en-r&anchor=para_87&doctype=Standard", "URIDate": "2021-03-24" }, "r173": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "37", "Section": "Disclosure", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=37&code=ifrs-tx-2021-en-r&doctype=Standard&dita_xref=IAS37_g84-92_TI", "URIDate": "2021-03-24" }, "r174": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "37", "Section": "Example 10 A court case", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=37&code=ifrs-tx-2021-en-r&doctype=Illustrative%20Examples&dita_xref=IAS37_IE_C_ex10__IAS37_IE_C_ex10_TI", "URIDate": "2021-03-24" }, "r175": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "38", "Paragraph": "118", "Subparagraph": "a", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=38&code=ifrs-tx-2021-en-r&anchor=para_118_a&doctype=Standard", "URIDate": "2021-03-24" }, "r176": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "38", "Paragraph": "118", "Subparagraph": "c", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=38&code=ifrs-tx-2021-en-r&anchor=para_118_c&doctype=Standard", "URIDate": "2021-03-24" }, "r177": { "Clause": "i", "IssueDate": "2021-01-01", "Name": "IAS", "Number": "38", "Paragraph": "118", "Subparagraph": "e", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=38&code=ifrs-tx-2021-en-r&anchor=para_118_e_i&doctype=Standard", "URIDate": "2021-03-24" }, "r178": { "Clause": "ii", "IssueDate": "2021-01-01", "Name": "IAS", "Number": "38", "Paragraph": "118", "Subparagraph": "e", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=38&code=ifrs-tx-2021-en-r&anchor=para_118_e_ii&doctype=Standard", "URIDate": "2021-03-24" }, "r179": { "Clause": "iv", "IssueDate": "2021-01-01", "Name": "IAS", "Number": "38", "Paragraph": "118", "Subparagraph": "e", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=38&code=ifrs-tx-2021-en-r&anchor=para_118_e_iv&doctype=Standard", "URIDate": "2021-03-24" }, "r18": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "1", "Paragraph": "54", "Subparagraph": "g", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_54_g&doctype=Standard", "URIDate": "2021-03-24" }, "r180": { "Clause": "vi", "IssueDate": "2021-01-01", "Name": "IAS", "Number": "38", "Paragraph": "118", "Subparagraph": "e", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=38&code=ifrs-tx-2021-en-r&anchor=para_118_e_vi&doctype=Standard", "URIDate": "2021-03-24" }, "r181": { "Clause": "vii", "IssueDate": "2021-01-01", "Name": "IAS", "Number": "38", "Paragraph": "118", "Subparagraph": "e", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=38&code=ifrs-tx-2021-en-r&anchor=para_118_e_vii&doctype=Standard", "URIDate": "2021-03-24" }, "r182": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "38", "Paragraph": "118", "Subparagraph": "e", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=38&code=ifrs-tx-2021-en-r&anchor=para_118_e&doctype=Standard", "URIDate": "2021-03-24" }, "r183": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "38", "Paragraph": "118", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=38&code=ifrs-tx-2021-en-r&anchor=para_118&doctype=Standard", "URIDate": "2021-03-24" }, "r184": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "38", "Paragraph": "119", "Subparagraph": "c", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=38&code=ifrs-tx-2021-en-r&anchor=para_119_c&doctype=Standard", "URIDate": "2021-03-24" }, "r185": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "38", "Paragraph": "119", "Subparagraph": "g", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=38&code=ifrs-tx-2021-en-r&anchor=para_119_g&doctype=Standard", "URIDate": "2021-03-24" }, "r186": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "38", "Paragraph": "119", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=38&code=ifrs-tx-2021-en-r&anchor=para_119&doctype=Standard", "URIDate": "2021-03-24" }, "r187": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "38", "Paragraph": "122", "Subparagraph": "b", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=38&code=ifrs-tx-2021-en-r&anchor=para_122_b&doctype=Standard", "URIDate": "2021-03-24" }, "r188": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "38", "Paragraph": "126", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=38&code=ifrs-tx-2021-en-r&anchor=para_126&doctype=Standard", "URIDate": "2021-03-24" }, "r189": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "38", "Section": "Disclosure", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=38&code=ifrs-tx-2021-en-r&doctype=Standard&dita_xref=IAS38_g118-128_TI", "URIDate": "2021-03-24" }, "r19": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "1", "Paragraph": "54", "Subparagraph": "h", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_54_h&doctype=Standard", "URIDate": "2021-03-24" }, "r190": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "39", "Paragraph": "86", "Subparagraph": "b", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=39&code=ifrs-tx-2021-en-r&anchor=para_86_b&doctype=Standard", "URIDate": "2021-03-24" }, "r191": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "39", "Paragraph": "86", "Subparagraph": "c", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=39&code=ifrs-tx-2021-en-r&anchor=para_86_c&doctype=Standard", "URIDate": "2021-03-24" }, "r192": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "40", "Paragraph": "32A", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=40&code=ifrs-tx-2021-en-r&anchor=para_32A&doctype=Standard", "URIDate": "2021-03-24" }, "r193": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "40", "Paragraph": "76", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=40&code=ifrs-tx-2021-en-r&anchor=para_76&doctype=Standard", "URIDate": "2021-03-24" }, "r194": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "40", "Paragraph": "79", "Subparagraph": "c", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=40&code=ifrs-tx-2021-en-r&anchor=para_79_c&doctype=Standard", "URIDate": "2021-03-24" }, "r195": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "40", "Paragraph": "79", "Subparagraph": "d", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=40&code=ifrs-tx-2021-en-r&anchor=para_79_d&doctype=Standard", "URIDate": "2021-03-24" }, "r196": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "41", "Paragraph": "50", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=41&code=ifrs-tx-2021-en-r&anchor=para_50&doctype=Standard", "URIDate": "2021-03-24" }, "r197": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "41", "Paragraph": "54", "Subparagraph": "f", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=41&code=ifrs-tx-2021-en-r&anchor=para_54_f&doctype=Standard", "URIDate": "2021-03-24" }, "r198": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "7", "Paragraph": "10", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2021-en-r&anchor=para_10&doctype=Standard", "URIDate": "2021-03-24" }, "r199": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "7", "Paragraph": "16", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2021-en-r&anchor=para_16&doctype=Standard", "URIDate": "2021-03-24" }, "r2": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "1", "Paragraph": "103", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_103&doctype=Standard", "URIDate": "2021-03-24" }, "r20": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "1", "Paragraph": "54", "Subparagraph": "i", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_54_i&doctype=Standard", "URIDate": "2021-03-24" }, "r200": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "7", "Paragraph": "17", "Subparagraph": "b", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2021-en-r&anchor=para_17_b&doctype=Standard", "URIDate": "2021-03-24" }, "r201": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "7", "Paragraph": "17", "Subparagraph": "c", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2021-en-r&anchor=para_17_c&doctype=Standard", "URIDate": "2021-03-24" }, "r202": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "7", "Paragraph": "17", "Subparagraph": "d", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2021-en-r&anchor=para_17_d&doctype=Standard", "URIDate": "2021-03-24" }, "r203": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "7", "Paragraph": "17", "Subparagraph": "e", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2021-en-r&anchor=para_17_e&doctype=Standard", "URIDate": "2021-03-24" }, "r204": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "7", "Paragraph": "17", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2021-en-r&anchor=para_17&doctype=Standard", "URIDate": "2021-03-24" }, "r205": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "7", "Paragraph": "18", "Subparagraph": "b", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2021-en-r&anchor=para_18_b&doctype=Standard", "URIDate": "2021-03-24" }, "r206": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "7", "Paragraph": "20", "Subparagraph": "a", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2021-en-r&anchor=para_20_a&doctype=Standard", "URIDate": "2021-03-24" }, "r207": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "7", "Paragraph": "20", "Subparagraph": "b", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2021-en-r&anchor=para_20_b&doctype=Standard", "URIDate": "2021-03-24" }, "r208": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "7", "Paragraph": "20", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2021-en-r&anchor=para_20&doctype=Standard", "URIDate": "2021-03-24" }, "r209": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "7", "Paragraph": "25", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2021-en-r&anchor=para_25&doctype=Standard", "URIDate": "2021-03-24" }, "r21": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "1", "Paragraph": "54", "Subparagraph": "k", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_54_k&doctype=Standard", "URIDate": "2021-03-24" }, "r210": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "7", "Paragraph": "28", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2021-en-r&anchor=para_28&doctype=Standard", "URIDate": "2021-03-24" }, "r211": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "7", "Paragraph": "31", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2021-en-r&anchor=para_31&doctype=Standard", "URIDate": "2021-03-24" }, "r212": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "7", "Paragraph": "35", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2021-en-r&anchor=para_35&doctype=Standard", "URIDate": "2021-03-24" }, "r213": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "7", "Paragraph": "39", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2021-en-r&anchor=para_39&doctype=Standard", "URIDate": "2021-03-24" }, "r214": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "7", "Paragraph": "40", "Subparagraph": "a", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2021-en-r&anchor=para_40_a&doctype=Standard", "URIDate": "2021-03-24" }, "r215": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "7", "Paragraph": "45", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2021-en-r&anchor=para_45&doctype=Standard", "URIDate": "2021-03-24" }, "r216": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "7", "Paragraph": "50", "Subparagraph": "d", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2021-en-r&anchor=para_50_d&doctype=Standard", "URIDate": "2021-03-24" }, "r217": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "7", "Section": "A Statement of cash flows for an entity other than a financial institution", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2021-en-r&doctype=Illustrative%20Examples&dita_xref=IAS07_IE_A__IAS07_IE_A_TI", "URIDate": "2021-03-24" }, "r218": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "7", "Section": "Presentation of a statement of cash flows", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2021-en-r&doctype=Standard&dita_xref=IAS07_g10-17_TI", "URIDate": "2021-03-24" }, "r219": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "1", "Paragraph": "24", "Subparagraph": "a", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=1&code=ifrs-tx-2021-en-r&anchor=para_24_a&doctype=Standard", "URIDate": "2021-03-24" }, "r22": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "1", "Paragraph": "54", "Subparagraph": "l", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_54_l&doctype=Standard", "URIDate": "2021-03-24" }, "r220": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "1", "Paragraph": "24", "Subparagraph": "b", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=1&code=ifrs-tx-2021-en-r&anchor=para_24_b&doctype=Standard", "URIDate": "2021-03-24" }, "r221": { "Clause": "i", "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "1", "Paragraph": "32", "Subparagraph": "a", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=1&code=ifrs-tx-2021-en-r&anchor=para_32_a_i&doctype=Standard", "URIDate": "2021-03-24" }, "r222": { "Clause": "ii", "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "1", "Paragraph": "32", "Subparagraph": "a", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=1&code=ifrs-tx-2021-en-r&anchor=para_32_a_ii&doctype=Standard", "URIDate": "2021-03-24" }, "r223": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "1", "Paragraph": "IG63", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=1&code=ifrs-tx-2021-en-r&anchor=para_IG63&doctype=Implementation%20Guidance", "URIDate": "2021-03-24" }, "r224": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "10", "Paragraph": "22", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=10&code=ifrs-tx-2021-en-r&anchor=para_22&doctype=Standard", "URIDate": "2021-03-24" }, "r225": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "12", "Paragraph": "12", "Subparagraph": "f", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2021-en-r&anchor=para_12_f&doctype=Standard", "URIDate": "2021-03-24" }, "r226": { "Clause": "ii", "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "12", "Paragraph": "2", "Subparagraph": "b", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2021-en-r&anchor=para_2_b_ii&doctype=Standard", "URIDate": "2021-03-24" }, "r227": { "Clause": "iv", "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "12", "Paragraph": "21", "Subparagraph": "a", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2021-en-r&anchor=para_21_a_iv&doctype=Standard", "URIDate": "2021-03-24" }, "r228": { "Clause": "ii", "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "12", "Paragraph": "21", "Subparagraph": "c", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2021-en-r&anchor=para_21_c_ii&doctype=Standard", "URIDate": "2021-03-24" }, "r229": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "12", "Paragraph": "B10", "Subparagraph": "b", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2021-en-r&anchor=para_B10_b&doctype=Appendix&subtype=B", "URIDate": "2021-03-24" }, "r23": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "1", "Paragraph": "54", "Subparagraph": "n", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_54_n&doctype=Standard", "URIDate": "2021-03-24" }, "r230": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "12", "Paragraph": "B12", "Subparagraph": "a", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2021-en-r&anchor=para_B12_a&doctype=Appendix&subtype=B", "URIDate": "2021-03-24" }, "r231": { "Clause": "i", "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "12", "Paragraph": "B12", "Subparagraph": "b", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2021-en-r&anchor=para_B12_b_i&doctype=Appendix&subtype=B", "URIDate": "2021-03-24" }, "r232": { "Clause": "ii", "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "12", "Paragraph": "B12", "Subparagraph": "b", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2021-en-r&anchor=para_B12_b_ii&doctype=Appendix&subtype=B", "URIDate": "2021-03-24" }, "r233": { "Clause": "iii", "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "12", "Paragraph": "B12", "Subparagraph": "b", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2021-en-r&anchor=para_B12_b_iii&doctype=Appendix&subtype=B", "URIDate": "2021-03-24" }, "r234": { "Clause": "iv", "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "12", "Paragraph": "B12", "Subparagraph": "b", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2021-en-r&anchor=para_B12_b_iv&doctype=Appendix&subtype=B", "URIDate": "2021-03-24" }, "r235": { "Clause": "ix", "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "12", "Paragraph": "B12", "Subparagraph": "b", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2021-en-r&anchor=para_B12_b_ix&doctype=Appendix&subtype=B", "URIDate": "2021-03-24" }, "r236": { "Clause": "viii", "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "12", "Paragraph": "B12", "Subparagraph": "b", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2021-en-r&anchor=para_B12_b_viii&doctype=Appendix&subtype=B", "URIDate": "2021-03-24" }, "r237": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "12", "Paragraph": "B13", "Subparagraph": "a", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2021-en-r&anchor=para_B13_a&doctype=Appendix&subtype=B", "URIDate": "2021-03-24" }, "r238": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "12", "Paragraph": "B13", "Subparagraph": "f", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2021-en-r&anchor=para_B13_f&doctype=Appendix&subtype=B", "URIDate": "2021-03-24" }, "r239": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "12", "Paragraph": "B13", "Subparagraph": "g", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2021-en-r&anchor=para_B13_g&doctype=Appendix&subtype=B", "URIDate": "2021-03-24" }, "r24": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "1", "Paragraph": "54", "Subparagraph": "o", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_54_o&doctype=Standard", "URIDate": "2021-03-24" }, "r240": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "12", "Paragraph": "B4", "Subparagraph": "d", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2021-en-r&anchor=para_B4_d&doctype=Appendix&subtype=B", "URIDate": "2021-03-24" }, "r241": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "13", "Paragraph": "93", "Subparagraph": "a", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=13&code=ifrs-tx-2021-en-r&anchor=para_93_a&doctype=Standard", "URIDate": "2021-03-24" }, "r242": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "13", "Paragraph": "93", "Subparagraph": "b", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=13&code=ifrs-tx-2021-en-r&anchor=para_93_b&doctype=Standard", "URIDate": "2021-03-24" }, "r243": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "13", "Paragraph": "93", "Subparagraph": "c", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=13&code=ifrs-tx-2021-en-r&anchor=para_93_c&doctype=Standard", "URIDate": "2021-03-24" }, "r244": { "Clause": "i", "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "13", "Paragraph": "93", "Subparagraph": "e", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=13&code=ifrs-tx-2021-en-r&anchor=para_93_e_i&doctype=Standard", "URIDate": "2021-03-24" }, "r245": { "Clause": "iii", "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "13", "Paragraph": "93", "Subparagraph": "e", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=13&code=ifrs-tx-2021-en-r&anchor=para_93_e_iii&doctype=Standard", "URIDate": "2021-03-24" }, "r246": { "Clause": "iv", "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "13", "Paragraph": "93", "Subparagraph": "e", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=13&code=ifrs-tx-2021-en-r&anchor=para_93_e_iv&doctype=Standard", "URIDate": "2021-03-24" }, "r247": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "13", "Paragraph": "93", "Subparagraph": "e", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=13&code=ifrs-tx-2021-en-r&anchor=para_93_e&doctype=Standard", "URIDate": "2021-03-24" }, "r248": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "13", "Paragraph": "93", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=13&code=ifrs-tx-2021-en-r&anchor=para_93&doctype=Standard", "URIDate": "2021-03-24" }, "r249": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "13", "Paragraph": "94", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=13&code=ifrs-tx-2021-en-r&anchor=para_94&doctype=Standard", "URIDate": "2021-03-24" }, "r25": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "1", "Paragraph": "54", "Subparagraph": "q", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_54_q&doctype=Standard", "URIDate": "2021-03-24" }, "r250": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "13", "Paragraph": "97", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=13&code=ifrs-tx-2021-en-r&anchor=para_97&doctype=Standard", "URIDate": "2021-03-24" }, "r251": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "13", "Paragraph": "B6", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=13&code=ifrs-tx-2021-en-r&anchor=para_B6&doctype=Appendix&subtype=B", "URIDate": "2021-03-24" }, "r252": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "13", "Paragraph": "IE60", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=13&code=ifrs-tx-2021-en-r&anchor=para_IE60&doctype=Illustrative%20Examples", "URIDate": "2021-03-24" }, "r253": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "13", "Paragraph": "IE63", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=13&code=ifrs-tx-2021-en-r&anchor=para_IE63&doctype=Illustrative%20Examples", "URIDate": "2021-03-24" }, "r254": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "14", "Paragraph": "33", "Subparagraph": "b", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=14&code=ifrs-tx-2021-en-r&anchor=para_33_b&doctype=Standard", "URIDate": "2021-03-24" }, "r255": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "15", "Paragraph": "105", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2021-en-r&anchor=para_105&doctype=Standard", "URIDate": "2021-03-24" }, "r256": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "15", "Paragraph": "113", "Subparagraph": "a", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2021-en-r&anchor=para_113_a&doctype=Standard", "URIDate": "2021-03-24" }, "r257": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "15", "Paragraph": "114", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2021-en-r&anchor=para_114&doctype=Standard", "URIDate": "2021-03-24" }, "r258": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "15", "Paragraph": "115", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2021-en-r&anchor=para_115&doctype=Standard", "URIDate": "2021-03-24" }, "r259": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "15", "Paragraph": "116", "Subparagraph": "a", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2021-en-r&anchor=para_116_a&doctype=Standard", "URIDate": "2021-03-24" }, "r26": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "1", "Paragraph": "54", "Subparagraph": "r", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_54_r&doctype=Standard", "URIDate": "2021-03-24" }, "r260": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "15", "Paragraph": "116", "Subparagraph": "b", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2021-en-r&anchor=para_116_b&doctype=Standard", "URIDate": "2021-03-24" }, "r261": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "15", "Paragraph": "120", "Subparagraph": "a", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2021-en-r&anchor=para_120_a&doctype=Standard", "URIDate": "2021-03-24" }, "r262": { "Clause": "i", "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "15", "Paragraph": "120", "Subparagraph": "b", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2021-en-r&anchor=para_120_b_i&doctype=Standard", "URIDate": "2021-03-24" }, "r263": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "15", "Paragraph": "B89", "Subparagraph": "a", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2021-en-r&anchor=para_B89_a&doctype=Appendix&subtype=B", "URIDate": "2021-03-24" }, "r264": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "15", "Paragraph": "B89", "Subparagraph": "b", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2021-en-r&anchor=para_B89_b&doctype=Appendix&subtype=B", "URIDate": "2021-03-24" }, "r265": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "15", "Paragraph": "B89", "Subparagraph": "c", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2021-en-r&anchor=para_B89_c&doctype=Appendix&subtype=B", "URIDate": "2021-03-24" }, "r266": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "16", "Paragraph": "47", "Subparagraph": "b", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2021-en-r&anchor=para_47_b&doctype=Standard", "URIDate": "2021-03-24" }, "r267": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "16", "Paragraph": "53", "Subparagraph": "a", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2021-en-r&anchor=para_53_a&doctype=Standard", "URIDate": "2021-03-24" }, "r268": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "16", "Paragraph": "53", "Subparagraph": "b", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2021-en-r&anchor=para_53_b&doctype=Standard", "URIDate": "2021-03-24" }, "r269": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "16", "Paragraph": "53", "Subparagraph": "g", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2021-en-r&anchor=para_53_g&doctype=Standard", "URIDate": "2021-03-24" }, "r27": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "1", "Paragraph": "55", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_55&doctype=Standard", "URIDate": "2021-03-24" }, "r270": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "16", "Paragraph": "53", "Subparagraph": "h", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2021-en-r&anchor=para_53_h&doctype=Standard", "URIDate": "2021-03-24" }, "r271": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "16", "Paragraph": "53", "Subparagraph": "j", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2021-en-r&anchor=para_53_j&doctype=Standard", "URIDate": "2021-03-24" }, "r272": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "16", "Paragraph": "53", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2021-en-r&anchor=para_53&doctype=Standard", "URIDate": "2021-03-24" }, "r273": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "16", "Paragraph": "94", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2021-en-r&anchor=para_94&doctype=Standard", "URIDate": "2021-03-24" }, "r274": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "16", "Paragraph": "95", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2021-en-r&anchor=para_95&doctype=Standard", "URIDate": "2021-03-24" }, "r275": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "16", "Paragraph": "97", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2021-en-r&anchor=para_97&doctype=Standard", "URIDate": "2021-03-24" }, "r276": { "Clause": "i", "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "2", "Paragraph": "45", "Subparagraph": "b", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2021-en-r&anchor=para_45_b_i&doctype=Standard", "URIDate": "2021-03-24" }, "r277": { "Clause": "vi", "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "2", "Paragraph": "45", "Subparagraph": "b", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2021-en-r&anchor=para_45_b_vi&doctype=Standard", "URIDate": "2021-03-24" }, "r278": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "2", "Paragraph": "45", "Subparagraph": "d", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2021-en-r&anchor=para_45_d&doctype=Standard", "URIDate": "2021-03-24" }, "r279": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "2", "Paragraph": "45", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2021-en-r&anchor=para_45&doctype=Standard", "URIDate": "2021-03-24" }, "r28": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "1", "Paragraph": "56", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_56&doctype=Standard", "URIDate": "2021-03-24" }, "r280": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "3", "Paragraph": "B64", "Subparagraph": "c", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2021-en-r&anchor=para_B64_c&doctype=Appendix&subtype=B", "URIDate": "2021-03-24" }, "r281": { "Clause": "i", "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "3", "Paragraph": "B64", "Subparagraph": "f", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2021-en-r&anchor=para_B64_f_i&doctype=Appendix&subtype=B", "URIDate": "2021-03-24" }, "r282": { "Clause": "iii", "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "3", "Paragraph": "B64", "Subparagraph": "f", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2021-en-r&anchor=para_B64_f_iii&doctype=Appendix&subtype=B", "URIDate": "2021-03-24" }, "r283": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "3", "Paragraph": "B64", "Subparagraph": "f", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2021-en-r&anchor=para_B64_f&doctype=Appendix&subtype=B", "URIDate": "2021-03-24" }, "r284": { "Clause": "i", "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "3", "Paragraph": "B64", "Subparagraph": "g", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2021-en-r&anchor=para_B64_g_i&doctype=Appendix&subtype=B", "URIDate": "2021-03-24" }, "r285": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "3", "Paragraph": "B64", "Subparagraph": "i", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2021-en-r&anchor=para_B64_i&doctype=Appendix&subtype=B", "URIDate": "2021-03-24" }, "r286": { "Clause": "i", "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "3", "Paragraph": "B64", "Subparagraph": "p", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2021-en-r&anchor=para_B64_p_i&doctype=Appendix&subtype=B", "URIDate": "2021-03-24" }, "r287": { "Clause": "ii", "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "3", "Paragraph": "B64", "Subparagraph": "p", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2021-en-r&anchor=para_B64_p_ii&doctype=Appendix&subtype=B", "URIDate": "2021-03-24" }, "r288": { "Clause": "i", "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "3", "Paragraph": "B64", "Subparagraph": "q", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2021-en-r&anchor=para_B64_q_i&doctype=Appendix&subtype=B", "URIDate": "2021-03-24" }, "r289": { "Clause": "ii", "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "3", "Paragraph": "B64", "Subparagraph": "q", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2021-en-r&anchor=para_B64_q_ii&doctype=Appendix&subtype=B", "URIDate": "2021-03-24" }, "r29": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "1", "Paragraph": "61", "Subparagraph": "a", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_61_a&doctype=Standard", "URIDate": "2021-03-24" }, "r290": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "3", "Paragraph": "B64", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2021-en-r&anchor=para_B64&doctype=Appendix&subtype=B", "URIDate": "2021-03-24" }, "r291": { "Clause": "iii", "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "3", "Paragraph": "B67", "Subparagraph": "a", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2021-en-r&anchor=para_B67_a_iii&doctype=Appendix&subtype=B", "URIDate": "2021-03-24" }, "r292": { "Clause": "ii", "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "3", "Paragraph": "B67", "Subparagraph": "d", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2021-en-r&anchor=para_B67_d_ii&doctype=Appendix&subtype=B", "URIDate": "2021-03-24" }, "r293": { "Clause": "vi", "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "3", "Paragraph": "B67", "Subparagraph": "d", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2021-en-r&anchor=para_B67_d_vi&doctype=Appendix&subtype=B", "URIDate": "2021-03-24" }, "r294": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "3", "Paragraph": "B67", "Subparagraph": "d", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2021-en-r&anchor=para_B67_d&doctype=Appendix&subtype=B", "URIDate": "2021-03-24" }, "r295": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "3", "Paragraph": "B67", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2021-en-r&anchor=para_B67&doctype=Appendix&subtype=B", "URIDate": "2021-03-24" }, "r296": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "3", "Paragraph": "IE72", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2021-en-r&anchor=para_IE72&doctype=Illustrative%20Examples", "URIDate": "2021-03-24" }, "r297": { "Clause": "i", "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "5", "Paragraph": "33", "Subparagraph": "b", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=5&code=ifrs-tx-2021-en-r&anchor=para_33_b_i&doctype=Standard", "URIDate": "2021-03-24" }, "r298": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "7", "Paragraph": "21C", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_21C&doctype=Standard", "URIDate": "2021-03-24" }, "r299": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "7", "Paragraph": "22A", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_22A&doctype=Standard", "URIDate": "2021-03-24" }, "r3": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "1", "Paragraph": "104", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_104&doctype=Standard", "URIDate": "2021-03-24" }, "r30": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "1", "Paragraph": "61", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_61&doctype=Standard", "URIDate": "2021-03-24" }, "r300": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "7", "Paragraph": "23B", "Subparagraph": "a", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_23B_a&doctype=Standard", "URIDate": "2021-03-24" }, "r301": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "7", "Paragraph": "24A", "Subparagraph": "a", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_24A_a&doctype=Standard", "URIDate": "2021-03-24" }, "r302": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "7", "Paragraph": "24A", "Subparagraph": "d", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_24A_d&doctype=Standard", "URIDate": "2021-03-24" }, "r303": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "7", "Paragraph": "24A", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_24A&doctype=Standard", "URIDate": "2021-03-24" }, "r304": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "7", "Paragraph": "24B", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_24B&doctype=Standard", "URIDate": "2021-03-24" }, "r305": { "Clause": "iv", "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "7", "Paragraph": "24C", "Subparagraph": "b", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_24C_b_iv&doctype=Standard", "URIDate": "2021-03-24" }, "r306": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "7", "Paragraph": "24C", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_24C&doctype=Standard", "URIDate": "2021-03-24" }, "r307": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "7", "Paragraph": "24E", "Subparagraph": "a", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_24E_a&doctype=Standard", "URIDate": "2021-03-24" }, "r308": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "7", "Paragraph": "25", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_25&doctype=Standard", "URIDate": "2021-03-24" }, "r309": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "7", "Paragraph": "31", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_31&doctype=Standard", "URIDate": "2021-03-24" }, "r31": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "1", "Paragraph": "66", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_66&doctype=Standard", "URIDate": "2021-03-24" }, "r310": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "7", "Paragraph": "32", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_32&doctype=Standard", "URIDate": "2021-03-24" }, "r311": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "7", "Paragraph": "33", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_33&doctype=Standard", "URIDate": "2021-03-24" }, "r312": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "7", "Paragraph": "34", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_34&doctype=Standard", "URIDate": "2021-03-24" }, "r313": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "7", "Paragraph": "35H", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_35H&doctype=Standard", "URIDate": "2021-03-24" }, "r314": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "7", "Paragraph": "35I", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_35I&doctype=Standard", "URIDate": "2021-03-24" }, "r315": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "7", "Paragraph": "35K", "Subparagraph": "a", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_35K_a&doctype=Standard", "URIDate": "2021-03-24" }, "r316": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "7", "Paragraph": "35K", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_35K&doctype=Standard", "URIDate": "2021-03-24" }, "r317": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "7", "Paragraph": "35M", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_35M&doctype=Standard", "URIDate": "2021-03-24" }, "r318": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "7", "Paragraph": "35N", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_35N&doctype=Standard", "URIDate": "2021-03-24" }, "r319": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "7", "Paragraph": "36", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_36&doctype=Standard", "URIDate": "2021-03-24" }, "r32": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "1", "Paragraph": "68", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_68&doctype=Standard", "URIDate": "2021-03-24" }, "r320": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "7", "Paragraph": "39", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_39&doctype=Standard", "URIDate": "2021-03-24" }, "r321": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "7", "Paragraph": "42E", "Subparagraph": "e", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_42E_e&doctype=Standard", "URIDate": "2021-03-24" }, "r322": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "7", "Paragraph": "42I", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_42I&doctype=Standard", "URIDate": "2021-03-24" }, "r323": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "7", "Paragraph": "6", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_6&doctype=Standard", "URIDate": "2021-03-24" }, "r324": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "7", "Paragraph": "7", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_7&doctype=Standard", "URIDate": "2021-03-24" }, "r325": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "7", "Paragraph": "8", "Subparagraph": "a", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_8_a&doctype=Standard", "URIDate": "2021-03-24" }, "r326": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "7", "Paragraph": "8", "Subparagraph": "f", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_8_f&doctype=Standard", "URIDate": "2021-03-24" }, "r327": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "7", "Paragraph": "8", "Subparagraph": "h", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_8_h&doctype=Standard", "URIDate": "2021-03-24" }, "r328": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "7", "Paragraph": "8", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_8&doctype=Standard", "URIDate": "2021-03-24" }, "r329": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "7", "Paragraph": "B11", "Subparagraph": "b", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_B11_b&doctype=Appendix&subtype=B", "URIDate": "2021-03-24" }, "r33": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "1", "Paragraph": "69", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_69&doctype=Standard", "URIDate": "2021-03-24" }, "r330": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "7", "Paragraph": "B11", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_B11&doctype=Appendix&subtype=B", "URIDate": "2021-03-24" }, "r331": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "7", "Paragraph": "B11D", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_B11D&doctype=Appendix&subtype=B", "URIDate": "2021-03-24" }, "r332": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "7", "Paragraph": "B35", "Subparagraph": "b", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_B35_b&doctype=Appendix&subtype=B", "URIDate": "2021-03-24" }, "r333": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "7", "Paragraph": "B35", "Subparagraph": "c", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_B35_c&doctype=Appendix&subtype=B", "URIDate": "2021-03-24" }, "r334": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "7", "Paragraph": "B35", "Subparagraph": "d", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_B35_d&doctype=Appendix&subtype=B", "URIDate": "2021-03-24" }, "r335": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "7", "Paragraph": "B35", "Subparagraph": "g", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_B35_g&doctype=Appendix&subtype=B", "URIDate": "2021-03-24" }, "r336": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "7", "Paragraph": "B35", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_B35&doctype=Appendix&subtype=B", "URIDate": "2021-03-24" }, "r337": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "7", "Paragraph": "IG20D", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_IG20D&doctype=Implementation%20Guidance", "URIDate": "2021-03-24" }, "r338": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "7", "Paragraph": "IG31A", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_IG31A&doctype=Implementation%20Guidance", "URIDate": "2021-03-24" }, "r339": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "7", "Paragraph": "IG40B", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_IG40B&doctype=Implementation%20Guidance", "URIDate": "2021-03-24" }, "r34": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "1", "Paragraph": "7", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_7&doctype=Standard", "URIDate": "2021-03-24" }, "r340": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "7", "Section": "Defined terms", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&doctype=Appendix&subtype=A&dita_xref=IFRS07_APPA_TI", "URIDate": "2021-03-24" }, "r341": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "8", "Paragraph": "23", "Subparagraph": "d", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2021-en-r&anchor=para_23_d&doctype=Standard", "URIDate": "2021-03-24" }, "r342": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "8", "Paragraph": "23", "Subparagraph": "g", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2021-en-r&anchor=para_23_g&doctype=Standard", "URIDate": "2021-03-24" }, "r343": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "8", "Paragraph": "23", "Subparagraph": "h", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2021-en-r&anchor=para_23_h&doctype=Standard", "URIDate": "2021-03-24" }, "r344": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "8", "Paragraph": "23", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2021-en-r&anchor=para_23&doctype=Standard", "URIDate": "2021-03-24" }, "r345": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "8", "Paragraph": "28", "Subparagraph": "b", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2021-en-r&anchor=para_28_b&doctype=Standard", "URIDate": "2021-03-24" }, "r346": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "8", "Paragraph": "28", "Subparagraph": "c", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2021-en-r&anchor=para_28_c&doctype=Standard", "URIDate": "2021-03-24" }, "r347": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "8", "Paragraph": "28", "Subparagraph": "d", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2021-en-r&anchor=para_28_d&doctype=Standard", "URIDate": "2021-03-24" }, "r348": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "8", "Paragraph": "28", "Subparagraph": "e", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2021-en-r&anchor=para_28_e&doctype=Standard", "URIDate": "2021-03-24" }, "r349": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "8", "Paragraph": "28", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2021-en-r&anchor=para_28&doctype=Standard", "URIDate": "2021-03-24" }, "r35": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "1", "Paragraph": "78", "Subparagraph": "b", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_78_b&doctype=Standard", "URIDate": "2021-03-24" }, "r350": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "8", "Paragraph": "32", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2021-en-r&anchor=para_32&doctype=Standard", "URIDate": "2021-03-24" }, "r351": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "8", "Paragraph": "33", "Subparagraph": "a", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2021-en-r&anchor=para_33_a&doctype=Standard", "URIDate": "2021-03-24" }, "r352": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "8", "Paragraph": "33", "Subparagraph": "b", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2021-en-r&anchor=para_33_b&doctype=Standard", "URIDate": "2021-03-24" }, "r353": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "8", "Paragraph": "33", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2021-en-r&anchor=para_33&doctype=Standard", "URIDate": "2021-03-24" }, "r354": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "8", "Section": "Disclosure", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2021-en-r&doctype=Standard&dita_xref=IFRS08_g20-24_TI", "URIDate": "2021-03-24" }, "r355": { "IssueDate": "2021-01-01", "Name": "IFRS", "Number": "9", "Paragraph": "7.2.34", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=9&code=ifrs-tx-2021-en-r&anchor=para_7.2.34&doctype=Standard", "URIDate": "2021-03-24" }, "r356": { "IssueDate": "2021-01-01", "Name": "IFRS", "Note": "Effective 2023-01-01", "Number": "17", "Paragraph": "109", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=17&code=ifrs-tx-2021-en-r&anchor=para_109&doctype=Standard", "URIDate": "2021-03-24" }, "r357": { "IssueDate": "2021-01-01", "Name": "IFRS", "Note": "Effective 2023-01-01", "Number": "17", "Paragraph": "109A", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=17&code=ifrs-tx-2021-en-r&anchor=para_109A&doctype=Standard", "URIDate": "2021-03-24" }, "r358": { "IssueDate": "2021-01-01", "Name": "IFRS", "Note": "Effective 2023-01-01", "Number": "17", "Paragraph": "113", "Subparagraph": "b", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=17&code=ifrs-tx-2021-en-r&anchor=para_113_b&doctype=Standard", "URIDate": "2021-03-24" }, "r359": { "IssueDate": "2021-01-01", "Name": "IFRS", "Note": "Effective 2023-01-01", "Number": "17", "Paragraph": "120", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=17&code=ifrs-tx-2021-en-r&anchor=para_120&doctype=Standard", "URIDate": "2021-03-24" }, "r36": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "1", "Paragraph": "78", "Subparagraph": "c", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_78_c&doctype=Standard", "URIDate": "2021-03-24" }, "r360": { "IssueDate": "2021-01-01", "Name": "IFRS", "Note": "Effective 2023-01-01", "Number": "17", "Paragraph": "124", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=17&code=ifrs-tx-2021-en-r&anchor=para_124&doctype=Standard", "URIDate": "2021-03-24" }, "r361": { "IssueDate": "2021-01-01", "Name": "IFRS", "Note": "Effective 2023-01-01", "Number": "17", "Paragraph": "125", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=17&code=ifrs-tx-2021-en-r&anchor=para_125&doctype=Standard", "URIDate": "2021-03-24" }, "r362": { "IssueDate": "2021-01-01", "Name": "IFRS", "Note": "Effective 2023-01-01", "Number": "17", "Paragraph": "127", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=17&code=ifrs-tx-2021-en-r&anchor=para_127&doctype=Standard", "URIDate": "2021-03-24" }, "r363": { "Clause": "ii", "IssueDate": "2021-01-01", "Name": "IFRS", "Note": "Effective 2023-01-01", "Number": "17", "Paragraph": "128", "Subparagraph": "a", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=17&code=ifrs-tx-2021-en-r&anchor=para_128_a_ii&doctype=Standard", "URIDate": "2021-03-24" }, "r364": { "IssueDate": "2021-01-01", "Name": "IFRS", "Note": "Effective 2023-01-01", "Number": "17", "Paragraph": "128", "Subparagraph": "a", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=17&code=ifrs-tx-2021-en-r&anchor=para_128_a&doctype=Standard", "URIDate": "2021-03-24" }, "r365": { "IssueDate": "2021-01-01", "Name": "IFRS", "Note": "Effective 2023-01-01", "Number": "17", "Paragraph": "132", "Subparagraph": "b", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=17&code=ifrs-tx-2021-en-r&anchor=para_132_b&doctype=Standard", "URIDate": "2021-03-24" }, "r366": { "IssueDate": "2021-01-01", "Name": "IFRS", "Note": "Effective 2023-01-01", "Number": "17", "Paragraph": "96", "Subparagraph": "b", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=17&code=ifrs-tx-2021-en-r&anchor=para_96_b&doctype=Standard", "URIDate": "2021-03-24" }, "r367": { "IssueDate": "2021-01-01", "Name": "IFRS", "Note": "Effective 2023-01-01", "Number": "17", "Paragraph": "96", "Subparagraph": "c", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=17&code=ifrs-tx-2021-en-r&anchor=para_96_c&doctype=Standard", "URIDate": "2021-03-24" }, "r368": { "IssueDate": "2021-01-01", "Name": "IFRS", "Note": "Effective 2023-01-01", "Number": "17", "Paragraph": "C32", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=17&code=ifrs-tx-2021-en-r&anchor=para_C32&doctype=Appendix&subtype=C", "URIDate": "2021-03-24" }, "r369": { "IssueDate": "2021-01-01", "Name": "IFRS", "Note": "Effective 2023-01-01", "Number": "9", "Paragraph": "7.2.42", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=9&code=ifrs-tx-2021-en-r&anchor=para_7.2.42&doctype=Standard", "URIDate": "2021-03-24" }, "r37": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "1", "Paragraph": "78", "Subparagraph": "d", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_78_d&doctype=Standard", "URIDate": "2021-03-24" }, "r370": { "IssueDate": "2021-01-01", "Name": "IFRS", "Note": "Effective on first application of IFRS 9", "Number": "4", "Paragraph": "39L", "Subparagraph": "b", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=4&code=ifrs-tx-2021-en-b&anchor=para_39L_b&doctype=Standard", "URIDate": "2021-03-24" }, "r371": { "IssueDate": "2021-01-01", "Name": "IFRS", "Note": "Effective on first application of IFRS 9", "Number": "4", "Paragraph": "39L", "Subparagraph": "e", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=4&code=ifrs-tx-2021-en-b&anchor=para_39L_e&doctype=Standard", "URIDate": "2021-03-24" }, "r372": { "IssueDate": "2021-01-01", "Name": "IFRS", "Note": "Effective on first application of IFRS 9", "Number": "4", "Paragraph": "39M", "Subparagraph": "a", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=4&code=ifrs-tx-2021-en-b&anchor=para_39M_a&doctype=Standard", "URIDate": "2021-03-24" }, "r373": { "IssueDate": "2021-01-01", "Name": "IFRS", "Note": "Effective on first application of IFRS 9", "Number": "4", "Paragraph": "39M", "Subparagraph": "b", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=4&code=ifrs-tx-2021-en-b&anchor=para_39M_b&doctype=Standard", "URIDate": "2021-03-24" }, "r374": { "IssueDate": "2021-01-01", "Name": "IFRS", "Note": "Effective on first application of IFRS 9", "Number": "4", "Paragraph": "39M", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=4&code=ifrs-tx-2021-en-b&anchor=para_39M&doctype=Standard", "URIDate": "2021-03-24" }, "r375": { "IssueDate": "2021-01-01", "Name": "IAS", "Note": "Expiry date 2023-01-01", "Number": "1", "Paragraph": "117", "Subparagraph": "b", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2017-en-b&anchor=para_117_b&doctype=Standard&forcepdf=true", "URIDate": "2021-03-24" }, "r376": { "IssueDate": "2021-01-01", "Name": "IAS", "Note": "Expiry date 2023-01-01", "Number": "1", "Paragraph": "91", "Subparagraph": "b", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2017-en-b&anchor=para_91_b&doctype=Standard&forcepdf=true", "URIDate": "2021-03-24" }, "r377": { "IssueDate": "2021-01-01", "Name": "IFRS", "Note": "Expiry date 2023-01-01", "Number": "4", "Paragraph": "39J", "Subparagraph": "a", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=4&code=ifrs-tx-2021-en-b&anchor=para_39J_a&doctype=Standard&book=b", "URIDate": "2021-03-24" }, "r378": { "IssueDate": "2021-01-01", "Name": "IFRS", "Note": "Expiry date 2023-01-01", "Number": "4", "Paragraph": "39J", "Subparagraph": "b", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=4&code=ifrs-tx-2021-en-b&anchor=para_39J_b&doctype=Standard&book=b", "URIDate": "2021-03-24" }, "r379": { "IssueDate": "2021-01-01", "Name": "IFRS", "Note": "Expiry date 2023-01-01", "Number": "4", "Paragraph": "39J", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=4&code=ifrs-tx-2021-en-b&anchor=para_39J&doctype=Standard&book=b", "URIDate": "2021-03-24" }, "r38": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "1", "Paragraph": "78", "Subparagraph": "e", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_78_e&doctype=Standard", "URIDate": "2021-03-24" }, "r380": { "Clause": "i", "IssueDate": "2021-01-01", "Name": "IFRS", "Note": "Expiry date 2023-01-01", "Number": "7", "Paragraph": "20", "Subparagraph": "a", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2017-en-b&anchor=para_20_a_i&doctype=Standard&book=b", "URIDate": "2021-03-24" }, "r381": { "Clause": "ii", "IssueDate": "2021-01-01", "Name": "IFRS", "Note": "Expiry date 2023-01-01", "Number": "7", "Paragraph": "20", "Subparagraph": "a", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2017-en-b&anchor=para_20_a_ii&doctype=Standard&book=b", "URIDate": "2021-03-24" }, "r382": { "IssueDate": "2021-01-01", "Name": "IFRS", "Note": "Expiry date 2023-01-01", "Number": "7", "Paragraph": "22", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2017-en-b&anchor=para_22&doctype=Standard&book=b", "URIDate": "2021-03-24" }, "r383": { "IssueDate": "2021-01-01", "Name": "IFRS", "Note": "Expiry date 2023-01-01", "Number": "7", "Paragraph": "36", "Subparagraph": "a", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2017-en-b&anchor=para_36_a&doctype=Standard&book=b", "URIDate": "2021-03-24" }, "r384": { "IssueDate": "2021-01-01", "Name": "IFRS", "Note": "Expiry date 2023-01-01", "Number": "7", "Paragraph": "37", "Subparagraph": "a", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2017-en-b&anchor=para_37_a&doctype=Standard&book=b", "URIDate": "2021-03-24" }, "r385": { "IssueDate": "2021-01-01", "Name": "IFRS", "Note": "Expiry date 2023-01-01", "Number": "7", "Paragraph": "37", "Subparagraph": "b", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2017-en-b&anchor=para_37_b&doctype=Standard&book=b", "URIDate": "2021-03-24" }, "r386": { "IssueDate": "2021-01-01", "Name": "IFRS", "Note": "Expiry date 2023-01-01", "Number": "7", "Paragraph": "37", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2017-en-b&anchor=para_37&doctype=Standard&book=b", "URIDate": "2021-03-24" }, "r387": { "IssueDate": "2021-01-01", "Name": "IFRS", "Note": "Expiry date 2023-01-01", "Number": "7", "Paragraph": "8", "Subparagraph": "d", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2017-en-b&anchor=para_8_d&doctype=Standard&book=b", "URIDate": "2021-03-24" }, "r388": { "IssueDate": "2021-01-01", "Name": "IFRS", "Note": "Expiry date 2023-01-01", "Number": "7", "Paragraph": "IG28", "Subparagraph": "b", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2017-en-b&anchor=para_IG28_b&doctype=Implementation%20Guidance&book=b", "URIDate": "2021-03-24" }, "r389": { "IssueDate": "2021-01-01", "Name": "IFRS", "Note": "Expiry date 2023-01-01", "Number": "7", "Paragraph": "IG28", "Subparagraph": "c", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2017-en-b&anchor=para_IG28_c&doctype=Implementation%20Guidance&book=b", "URIDate": "2021-03-24" }, "r39": { "Clause": "i", "IssueDate": "2021-01-01", "Name": "IAS", "Number": "1", "Paragraph": "79", "Subparagraph": "a", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_79_a_i&doctype=Standard", "URIDate": "2021-03-24" }, "r390": { "IssueDate": "2021-01-01", "Name": "IFRS", "Note": "Expiry date 2023-01-01", "Number": "7", "Paragraph": "IG29", "Subparagraph": "a", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2017-en-b&anchor=para_IG29_a&doctype=Implementation%20Guidance&book=b", "URIDate": "2021-03-24" }, "r391": { "IssueDate": "2021-01-01", "Name": "IFRS", "Note": "Expiry date 2023-01-01", "Number": "7", "Paragraph": "IG29", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2017-en-b&anchor=para_IG29&doctype=Implementation%20Guidance&book=b", "URIDate": "2021-03-24" }, "r392": { "Name": "Exchange Act", "Number": "240", "Publisher": "SEC", "Section": "12" }, "r393": { "Name": "Exchange Act", "Number": "240", "Publisher": "SEC", "Section": "12", "Subsection": "b" }, "r394": { "Name": "Exchange Act", "Number": "240", "Publisher": "SEC", "Section": "12", "Subsection": "b-2" }, "r395": { "Name": "Exchange Act", "Number": "240", "Publisher": "SEC", "Section": "12", "Subsection": "d1-1" }, "r396": { "Name": "Exchange Act", "Number": "240", "Publisher": "SEC", "Section": "15", "Subsection": "d-3" }, "r397": { "Name": "Form 10-K", "Number": "249", "Publisher": "SEC", "Section": "310" }, "r398": { "Name": "Form 20-F", "Number": "249", "Publisher": "SEC", "Section": "220", "Subsection": "f" }, "r399": { "Name": "Form 40-F", "Number": "249", "Publisher": "SEC", "Section": "240", "Subsection": "f" }, "r4": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "1", "Paragraph": "106", "Subparagraph": "a", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_106_a&doctype=Standard", "URIDate": "2021-03-24" }, "r40": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "1", "Paragraph": "79", "Subparagraph": "a", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_79_a&doctype=Standard", "URIDate": "2021-03-24" }, "r400": { "Name": "Forms 10-K, 10-Q, 20-F", "Number": "240", "Publisher": "SEC", "Section": "13", "Subsection": "a-1" }, "r401": { "Name": "Regulation S-T", "Number": "232", "Publisher": "SEC", "Section": "405" }, "r402": { "Name": "Securities Act", "Number": "230", "Publisher": "SEC", "Section": "405" }, "r41": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "1", "Paragraph": "79", "Subparagraph": "b", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_79_b&doctype=Standard", "URIDate": "2021-03-24" }, "r42": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "1", "Paragraph": "79", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_79&doctype=Standard", "URIDate": "2021-03-24" }, "r43": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "1", "Paragraph": "81A", "Subparagraph": "a", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_81A_a&doctype=Standard", "URIDate": "2021-03-24" }, "r44": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "1", "Paragraph": "81A", "Subparagraph": "b", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_81A_b&doctype=Standard", "URIDate": "2021-03-24" }, "r45": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "1", "Paragraph": "81A", "Subparagraph": "c", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_81A_c&doctype=Standard", "URIDate": "2021-03-24" }, "r46": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "1", "Paragraph": "82", "Subparagraph": "c", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_82_c&doctype=Standard", "URIDate": "2021-03-24" }, "r47": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "1", "Paragraph": "82", "Subparagraph": "d", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_82_d&doctype=Standard", "URIDate": "2021-03-24" }, "r48": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "1", "Paragraph": "82A", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_82A&doctype=Standard", "URIDate": "2021-03-24" }, "r49": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "1", "Paragraph": "85", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_85&doctype=Standard", "URIDate": "2021-03-24" }, "r5": { "Clause": "i", "IssueDate": "2021-01-01", "Name": "IAS", "Number": "1", "Paragraph": "106", "Subparagraph": "d", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_106_d_i&doctype=Standard", "URIDate": "2021-03-24" }, "r50": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "1", "Paragraph": "90", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_90&doctype=Standard", "URIDate": "2021-03-24" }, "r51": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "1", "Paragraph": "91", "Subparagraph": "a", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_91_a&doctype=Standard", "URIDate": "2021-03-24" }, "r52": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "1", "Paragraph": "91", "Subparagraph": "b", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_91_b&doctype=Standard", "URIDate": "2021-03-24" }, "r53": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "1", "Paragraph": "91", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_91&doctype=Standard", "URIDate": "2021-03-24" }, "r54": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "1", "Paragraph": "98", "Subparagraph": "a", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_98_a&doctype=Standard", "URIDate": "2021-03-24" }, "r55": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "1", "Paragraph": "98", "Subparagraph": "b", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_98_b&doctype=Standard", "URIDate": "2021-03-24" }, "r56": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "1", "Paragraph": "98", "Subparagraph": "c", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_98_c&doctype=Standard", "URIDate": "2021-03-24" }, "r57": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "1", "Paragraph": "99", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_99&doctype=Standard", "URIDate": "2021-03-24" }, "r58": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "1", "Paragraph": "IG6", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_IG6&doctype=Implementation%20Guidance", "URIDate": "2021-03-24" }, "r59": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "10", "Paragraph": "13", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=10&code=ifrs-tx-2021-en-r&anchor=para_13&doctype=Standard", "URIDate": "2021-03-24" }, "r6": { "Clause": "ii", "IssueDate": "2021-01-01", "Name": "IAS", "Number": "1", "Paragraph": "106", "Subparagraph": "d", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_106_d_ii&doctype=Standard", "URIDate": "2021-03-24" }, "r60": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "10", "Paragraph": "21", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=10&code=ifrs-tx-2021-en-r&anchor=para_21&doctype=Standard", "URIDate": "2021-03-24" }, "r61": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "10", "Section": "Disclosure", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=10&code=ifrs-tx-2021-en-r&doctype=Standard&dita_xref=IAS10_g17-22_TI", "URIDate": "2021-03-24" }, "r62": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "12", "Paragraph": "79", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=12&code=ifrs-tx-2021-en-r&anchor=para_79&doctype=Standard", "URIDate": "2021-03-24" }, "r63": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "12", "Paragraph": "80", "Subparagraph": "a", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=12&code=ifrs-tx-2021-en-r&anchor=para_80_a&doctype=Standard", "URIDate": "2021-03-24" }, "r64": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "12", "Paragraph": "80", "Subparagraph": "b", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=12&code=ifrs-tx-2021-en-r&anchor=para_80_b&doctype=Standard", "URIDate": "2021-03-24" }, "r65": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "12", "Paragraph": "80", "Subparagraph": "c", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=12&code=ifrs-tx-2021-en-r&anchor=para_80_c&doctype=Standard", "URIDate": "2021-03-24" }, "r66": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "12", "Paragraph": "80", "Subparagraph": "d", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=12&code=ifrs-tx-2021-en-r&anchor=para_80_d&doctype=Standard", "URIDate": "2021-03-24" }, "r67": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "12", "Paragraph": "80", "Subparagraph": "e", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=12&code=ifrs-tx-2021-en-r&anchor=para_80_e&doctype=Standard", "URIDate": "2021-03-24" }, "r68": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "12", "Paragraph": "80", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=12&code=ifrs-tx-2021-en-r&anchor=para_80&doctype=Standard", "URIDate": "2021-03-24" }, "r69": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "12", "Paragraph": "81", "Subparagraph": "a", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=12&code=ifrs-tx-2021-en-r&anchor=para_81_a&doctype=Standard", "URIDate": "2021-03-24" }, "r7": { "Clause": "iii", "IssueDate": "2021-01-01", "Name": "IAS", "Number": "1", "Paragraph": "106", "Subparagraph": "d", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_106_d_iii&doctype=Standard", "URIDate": "2021-03-24" }, "r70": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "12", "Paragraph": "81", "Subparagraph": "ab", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=12&code=ifrs-tx-2021-en-r&anchor=para_81_ab&doctype=Standard", "URIDate": "2021-03-24" }, "r71": { "Clause": "i", "IssueDate": "2021-01-01", "Name": "IAS", "Number": "12", "Paragraph": "81", "Subparagraph": "c", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=12&code=ifrs-tx-2021-en-r&anchor=para_81_c_i&doctype=Standard", "URIDate": "2021-03-24" }, "r72": { "Clause": "ii", "IssueDate": "2021-01-01", "Name": "IAS", "Number": "12", "Paragraph": "81", "Subparagraph": "c", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=12&code=ifrs-tx-2021-en-r&anchor=para_81_c_ii&doctype=Standard", "URIDate": "2021-03-24" }, "r73": { "Clause": "i", "IssueDate": "2021-01-01", "Name": "IAS", "Number": "12", "Paragraph": "81", "Subparagraph": "g", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=12&code=ifrs-tx-2021-en-r&anchor=para_81_g_i&doctype=Standard", "URIDate": "2021-03-24" }, "r74": { "Clause": "ii", "IssueDate": "2021-01-01", "Name": "IAS", "Number": "12", "Paragraph": "81", "Subparagraph": "g", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=12&code=ifrs-tx-2021-en-r&anchor=para_81_g_ii&doctype=Standard", "URIDate": "2021-03-24" }, "r75": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "12", "Paragraph": "81", "Subparagraph": "g", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=12&code=ifrs-tx-2021-en-r&anchor=para_81_g&doctype=Standard", "URIDate": "2021-03-24" }, "r76": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "12", "Paragraph": "81", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=12&code=ifrs-tx-2021-en-r&anchor=para_81&doctype=Standard", "URIDate": "2021-03-24" }, "r77": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "12", "Section": "Disclosure", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=12&code=ifrs-tx-2021-en-r&doctype=Standard&dita_xref=IAS12_g79-88_TI", "URIDate": "2021-03-24" }, "r78": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "16", "Paragraph": "37", "Subparagraph": "b", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=16&code=ifrs-tx-2021-en-r&anchor=para_37_b&doctype=Standard", "URIDate": "2021-03-24" }, "r79": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "16", "Paragraph": "37", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=16&code=ifrs-tx-2021-en-r&anchor=para_37&doctype=Standard", "URIDate": "2021-03-24" }, "r8": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "1", "Paragraph": "106", "Subparagraph": "d", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_106_d&doctype=Standard", "URIDate": "2021-03-24" }, "r80": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "16", "Paragraph": "73", "Subparagraph": "d", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=16&code=ifrs-tx-2021-en-r&anchor=para_73_d&doctype=Standard", "URIDate": "2021-03-24" }, "r81": { "Clause": "i", "IssueDate": "2021-01-01", "Name": "IAS", "Number": "16", "Paragraph": "73", "Subparagraph": "e", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=16&code=ifrs-tx-2021-en-r&anchor=para_73_e_i&doctype=Standard", "URIDate": "2021-03-24" }, "r82": { "Clause": "ii", "IssueDate": "2021-01-01", "Name": "IAS", "Number": "16", "Paragraph": "73", "Subparagraph": "e", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=16&code=ifrs-tx-2021-en-r&anchor=para_73_e_ii&doctype=Standard", "URIDate": "2021-03-24" }, "r83": { "Clause": "iii", "IssueDate": "2021-01-01", "Name": "IAS", "Number": "16", "Paragraph": "73", "Subparagraph": "e", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=16&code=ifrs-tx-2021-en-r&anchor=para_73_e_iii&doctype=Standard", "URIDate": "2021-03-24" }, "r84": { "Clause": "v", "IssueDate": "2021-01-01", "Name": "IAS", "Number": "16", "Paragraph": "73", "Subparagraph": "e", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=16&code=ifrs-tx-2021-en-r&anchor=para_73_e_v&doctype=Standard", "URIDate": "2021-03-24" }, "r85": { "Clause": "vii", "IssueDate": "2021-01-01", "Name": "IAS", "Number": "16", "Paragraph": "73", "Subparagraph": "e", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=16&code=ifrs-tx-2021-en-r&anchor=para_73_e_vii&doctype=Standard", "URIDate": "2021-03-24" }, "r86": { "Clause": "viii", "IssueDate": "2021-01-01", "Name": "IAS", "Number": "16", "Paragraph": "73", "Subparagraph": "e", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=16&code=ifrs-tx-2021-en-r&anchor=para_73_e_viii&doctype=Standard", "URIDate": "2021-03-24" }, "r87": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "16", "Paragraph": "73", "Subparagraph": "e", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=16&code=ifrs-tx-2021-en-r&anchor=para_73_e&doctype=Standard", "URIDate": "2021-03-24" }, "r88": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "16", "Paragraph": "73", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=16&code=ifrs-tx-2021-en-r&anchor=para_73&doctype=Standard", "URIDate": "2021-03-24" }, "r89": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "16", "Paragraph": "75", "Subparagraph": "a", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=16&code=ifrs-tx-2021-en-r&anchor=para_75_a&doctype=Standard", "URIDate": "2021-03-24" }, "r9": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "1", "Paragraph": "106", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_106&doctype=Standard", "URIDate": "2021-03-24" }, "r90": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "16", "Paragraph": "75", "Subparagraph": "b", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=16&code=ifrs-tx-2021-en-r&anchor=para_75_b&doctype=Standard", "URIDate": "2021-03-24" }, "r91": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "16", "Section": "Disclosure", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=16&code=ifrs-tx-2021-en-r&doctype=Standard&dita_xref=IAS16_g73-79_TI", "URIDate": "2021-03-24" }, "r92": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "19", "Paragraph": "135", "Subparagraph": "b", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_135_b&doctype=Standard", "URIDate": "2021-03-24" }, "r93": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "19", "Paragraph": "138", "Subparagraph": "a", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_138_a&doctype=Standard", "URIDate": "2021-03-24" }, "r94": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "19", "Paragraph": "138", "Subparagraph": "d", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_138_d&doctype=Standard", "URIDate": "2021-03-24" }, "r95": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "19", "Paragraph": "138", "Subparagraph": "e", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_138_e&doctype=Standard", "URIDate": "2021-03-24" }, "r96": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "19", "Paragraph": "138", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_138&doctype=Standard", "URIDate": "2021-03-24" }, "r97": { "Clause": "i", "IssueDate": "2021-01-01", "Name": "IAS", "Number": "19", "Paragraph": "140", "Subparagraph": "a", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_140_a_i&doctype=Standard", "URIDate": "2021-03-24" }, "r98": { "Clause": "ii", "IssueDate": "2021-01-01", "Name": "IAS", "Number": "19", "Paragraph": "140", "Subparagraph": "a", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_140_a_ii&doctype=Standard", "URIDate": "2021-03-24" }, "r99": { "IssueDate": "2021-01-01", "Name": "IAS", "Number": "19", "Paragraph": "140", "Subparagraph": "a", "URI": "http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_140_a&doctype=Standard", "URIDate": "2021-03-24" } }, "version": "2.1" }