SMITH & NEPHEW PLC (SEC Filing Page | XBRL Cloud Viewer | XBRL Instance)

Line Label Object Class Period Type Balance Report ElementName
1 00090 - Document - Document and Entity Information Network

*

*

 http://www.smith-nephew.com/role/DocumentDocumentAndEntityInformation
2 Implied Table Table

*

*

 implied:Table
3 Document and Entity Information Abstract snn:DocumentAndEntityInformationAbstract
4 Entity Registrant Name Concept (Text/String) For Period dei:EntityRegistrantName
5 Entity Central Index Key Concept (CIK Number) For Period dei:EntityCentralIndexKey
6 Document Type Concept (Submission Type) For Period dei:DocumentType
7 Document Period End Date Concept (Date) For Period dei:DocumentPeriodEndDate
8 Amendment Flag Concept (Yes/No) For Period dei:AmendmentFlag
9 Current Fiscal Year End Date Concept (Month/Day) For Period dei:CurrentFiscalYearEndDate
10 Entity Well-known Seasoned Issuer Concept (Yes/No) For Period dei:EntityWellKnownSeasonedIssuer
11 Entity Voluntary Filers Concept (Yes/No) For Period dei:EntityVoluntaryFilers
12 Entity Current Reporting Status Concept (Yes/No) For Period dei:EntityCurrentReportingStatus
13 Entity Filer Category Concept (Filer Category) For Period dei:EntityFilerCategory
14 Entity Emerging Growth Company Concept (Yes/No) For Period dei:EntityEmergingGrowthCompany
15 Entity Common Stock, Shares Outstanding Concept (Shares) As Of dei:EntityCommonStockSharesOutstanding
16 Document Fiscal Year Focus Concept (Year) For Period dei:DocumentFiscalYearFocus
17 Document Fiscal Period Focus Concept (Fiscal Period) For Period dei:DocumentFiscalPeriodFocus
18 00100 - Statement - GROUP INCOME STATEMENT Network

*

*

 http://www.smith-nephew.com/role/StatementGroupIncomeStatement
19 Implied Table Table

*

*

 implied:Table
20 GROUP INCOME STATEMENT Abstract ifrs-full:IncomeStatementAbstract
21 Revenue Concept (Monetary) For Period Credit ifrs-full:RevenueFromContractsWithCustomers
22 Cost of goods sold Concept (Monetary) For Period Debit ifrs-full:CostOfSales
23 Gross profit Concept (Monetary) For Period Credit ifrs-full:GrossProfit
24 Selling, general and administrative expenses Concept (Monetary) For Period Debit ifrs-full:SellingGeneralAndAdministrativeExpense
25 Research and development expenses Concept (Monetary) For Period Debit ifrs-full:ResearchAndDevelopmentExpense
26 Operating profit Concept (Monetary) For Period Credit ifrs-full:ProfitLossFromOperatingActivities
27 Interest income Concept (Monetary) For Period Credit ifrs-full:FinanceIncome
28 Interest expense Concept (Monetary) For Period Debit ifrs-full:InterestExpense
29 Other finance costs Concept (Monetary) For Period Debit ifrs-full:OtherFinanceCost
30 Share of results of associates Concept (Monetary) For Period Credit ifrs-full:ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod
31 Gain on disposal of business Concept (Monetary) For Period Credit snn:GainsLossesOnDisposalOfBusiness
32 Profit before taxation Concept (Monetary) For Period Credit ifrs-full:ProfitLossBeforeTax
33 Taxation Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
34 Attributable profit for the year Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
35 Earnings per ordinary share Abstract ifrs-full:EarningsPerShareAbstract
36 Basic Concept (Share) For Period ifrs-full:BasicEarningsLossPerShare
37 Diluted Concept (Share) For Period ifrs-full:DilutedEarningsLossPerShare
38 00200 - Statement - GROUP STATEMENT OF COMPREHENSIVE INCOME Network

*

*

 http://www.smith-nephew.com/role/StatementGroupStatementOfComprehensiveIncome
39 Implied Table Table

*

*

 implied:Table
40 GROUP STATEMENT OF COMPREHENSIVE INCOME Abstract ifrs-full:StatementOfComprehensiveIncomeAbstract
41 Attributable profit for the year Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
42 Other comprehensive income: Abstract ifrs-full:OtherComprehensiveIncomeAbstract
43 Items that will not be reclassified to income statement Abstract ifrs-full:ComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTaxAbstract
44 Re-measurement of net retirement benefit obligations Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans
45 Taxation on other comprehensive income Concept (Monetary) For Period Debit ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLoss
46 Total items that will not be reclassified to income statement Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax
47 Items that may be reclassified subsequently to income statement Abstract ifrs-full:ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract
48 Cash flow hedges – forward foreign exchange contracts Gains/(losses) arising in the year Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeNetOfTaxChangeInValueOfForwardElementsOfForwardContracts
49 Losses transferred to inventories for the year Concept (Monetary) For Period Credit snn:OtherComprehensiveIncomeNetOfTaxGainLossesTransferredToInventories
50 Fair value remeasurement of available for sale asset Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeNetOfTaxAvailableforsaleFinancialAssets
51 Exchange differences on translation of foreign operations Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation
52 Taxation on other comprehensive income Concept (Monetary) For Period Debit ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLoss
53 Total items that may be reclassified subsequently to income statement Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax
54 Other comprehensive income/(loss) for the year, net of taxation Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncome
55 Total comprehensive income for the year Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncome
56 00300 - Statement - GROUP BALANCE SHEET Network

*

*

 http://www.smith-nephew.com/role/StatementGroupBalanceSheet
57 Implied Table Table

*

*

 implied:Table
58 Statement of financial position [abstract] Abstract ifrs-full:StatementOfFinancialPositionAbstract
59 Assets Abstract ifrs-full:AssetsAbstract
60 Non-current assets Abstract ifrs-full:NoncurrentAssetsAbstract
61 Property, plant and equipment Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
62 Goodwill Concept (Monetary) As Of Debit ifrs-full:Goodwill
63 Intangible assets Concept (Monetary) As Of Debit ifrs-full:IntangibleAssetsOtherThanGoodwill
64 Investments Concept (Monetary) As Of Debit ifrs-full:NoncurrentFinancialAssetsAvailableforsale
65 Investments in associates Concept (Monetary) As Of Debit ifrs-full:InvestmentsInAssociatesAccountedForUsingEquityMethod
66 Other non-current receivables Concept (Monetary) As Of Debit ifrs-full:OtherNoncurrentReceivables
67 Retirement benefit asset Concept (Monetary) As Of Debit ifrs-full:NoncurrentRecognisedAssetsDefinedBenefitPlan
68 Deferred tax assets Concept (Monetary) As Of Debit ifrs-full:DeferredTaxAssets
69 Total non current assets Concept (Monetary) As Of Debit ifrs-full:NoncurrentAssets
70 Current assets Abstract ifrs-full:CurrentAssetsAbstract
71 Inventories Concept (Monetary) As Of Debit ifrs-full:Inventories
72 Trade and other receivables Concept (Monetary) As Of Debit ifrs-full:TradeAndOtherCurrentReceivables
73 Cash at bank Concept (Monetary) As Of Debit ifrs-full:BalancesWithBanks
74 Total current assets Concept (Monetary) As Of Debit ifrs-full:CurrentAssets
75 Total assets Concept (Monetary) As Of Debit ifrs-full:Assets
76 Equity and liabilities Abstract ifrs-full:EquityAndLiabilitiesAbstract
77 Equity attributable to owners of the Company Abstract ifrs-full:EquityAbstract
78 Share capital Concept (Monetary) As Of Credit ifrs-full:IssuedCapital
79 Share premium Concept (Monetary) As Of Credit ifrs-full:SharePremium
80 Capital redemption reserve Concept (Monetary) As Of Credit ifrs-full:CapitalRedemptionReserve
81 Treasury shares Concept (Monetary) As Of Debit ifrs-full:TreasuryShares
82 Other reserves Concept (Monetary) As Of Credit snn:OtherReservesOtherthanCapitalRedemptionReserve
83 Retained earnings Concept (Monetary) As Of Credit ifrs-full:RetainedEarnings
84 Total equity Concept (Monetary) As Of Credit ifrs-full:EquityAttributableToOwnersOfParent
85 Non-current liabilities Abstract ifrs-full:NoncurrentLiabilitiesAbstract
86 Long-term borrowings Concept (Monetary) As Of Credit ifrs-full:LongtermBorrowings
87 Retirement benefit obligations Concept (Monetary) As Of Credit ifrs-full:NoncurrentRecognisedLiabilitiesDefinedBenefitPlan
88 Other payables Concept (Monetary) As Of Credit ifrs-full:OtherNoncurrentPayables
89 Provisions Concept (Monetary) As Of Credit ifrs-full:NoncurrentProvisions
90 Deferred tax liabilities Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilities
91 Total non-current liabilities Concept (Monetary) As Of Credit ifrs-full:NoncurrentLiabilities
92 Current liabilities Abstract ifrs-full:CurrentLiabilitiesAbstract
93 Bank overdrafts and loans Concept (Monetary) As Of Credit ifrs-full:ShorttermBorrowings
94 Trade and other payables Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherCurrentPayables
95 Provisions Concept (Monetary) As Of Credit ifrs-full:CurrentProvisions
96 Current tax payable Concept (Monetary) As Of Credit ifrs-full:CurrentTaxLiabilitiesCurrent
97 Total current liabilities Concept (Monetary) As Of Credit ifrs-full:CurrentLiabilities
98 Total liabilities Concept (Monetary) As Of Credit ifrs-full:Liabilities
99 Total equity and liabilities Concept (Monetary) As Of Credit ifrs-full:EquityAndLiabilities
100 00400 - Statement - GROUP CASH FLOW STATEMENT Network

*

*

 http://www.smith-nephew.com/role/StatementGroupCashFlowStatement
101 Implied Table Table

*

*

 implied:Table
102 GROUP CASH FLOW STATEMENT Abstract ifrs-full:StatementOfCashFlowsAbstract
103 Cash flows from operating activities Abstract ifrs-full:CashFlowsFromUsedInOperatingActivitiesAbstract
104 Profit before taxation Concept (Monetary) For Period Credit ifrs-full:ProfitLossBeforeTax
105 Net interest expense Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForInterestExpense
106 Depreciation, amortisation and impairment Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDepreciationAndAmortisationExpenseAndImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss
107 Loss on disposal of property, plant and equipment and software Concept (Monetary) For Period Credit ifrs-full:AdjustmentsForGainLossOnDisposalsPropertyPlantAndEquipment
108 Share-based payments expense (equity settled) Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForSharebasedPayments
109 Share of results of associates Concept (Monetary) For Period Credit ifrs-full:AdjustmentsForUndistributedProfitsOfAssociates
110 Profit on disposal of business Concept (Monetary) For Period Credit snn:GainsLossesOnDisposalOfBusiness
111 Net movement in post-retirement benefit obligations Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForIncreaseDecreaseInEmployeeBenefitLiabilities
112 Increase in inventories Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDecreaseIncreaseInInventories
113 Increase in trade and other receivables Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDecreaseIncreaseInTradeAndOtherReceivables
114 (Decrease)/increase in trade and other payables and provisions Concept (Monetary) For Period Debit snn:AdjustmentsForIncreaseDecreaseInTradeAndOtherPayablesAndProvisions
115 Cash generated from operations Concept (Monetary) For Period ifrs-full:CashFlowsFromUsedInOperations
116 Interest received Concept (Monetary) For Period Debit ifrs-full:InterestReceivedClassifiedAsOperatingActivities
117 Interest paid Concept (Monetary) For Period Credit ifrs-full:InterestPaidClassifiedAsOperatingActivities
118 Income taxes paid Concept (Monetary) For Period Credit ifrs-full:IncomeTaxesPaidClassifiedAsOperatingActivities
119 Net cash inflow from operating activities Concept (Monetary) For Period ifrs-full:CashFlowsFromUsedInOperatingActivities
120 Cash flows from investing activities Abstract ifrs-full:CashFlowsFromUsedInInvestingActivitiesAbstract
121 Acquisitions, net of cash acquired Concept (Monetary) For Period Credit ifrs-full:CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities
122 Capital expenditure Concept (Monetary) For Period Credit ifrs-full:PurchaseOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets
123 Purchae of investments Concept (Monetary) For Period Credit snn:PurchaseOfFinancialAssetsAtFairValueThroughProfitOrLoss
124 Distribution from associate Concept (Monetary) For Period Debit snn:CashDistributionReceivedFromAssociate
125 Proceeds on disposal of business Concept (Monetary) For Period Debit snn:ProceedsOnDisposalOfBusiness
126 Tax on disposal of business Concept (Monetary) For Period Debit snn:TaxOnDisposalOfBusiness
127 Net cash used in investing activities Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInInvestingActivities
128 Cash flows from financing activities Abstract ifrs-full:CashFlowsFromUsedInFinancingActivitiesAbstract
129 Proceeds from issue of ordinary share capital Concept (Monetary) For Period Debit ifrs-full:ProceedsFromIssueOfOrdinaryShares
130 Purchase of own shares Concept (Monetary) For Period Credit ifrs-full:PaymentsToAcquireOrRedeemEntitysShares
131 Proceeds from borrowings due within one year Concept (Monetary) For Period Debit ifrs-full:ProceedsFromCurrentBorrowings
132 Settlement of borrowings due within one year Concept (Monetary) For Period Credit ifrs-full:RepaymentsOfCurrentBorrowings
133 Proceeds from borrowings due after one year Concept (Monetary) For Period Debit ifrs-full:ProceedsFromNoncurrentBorrowings
134 Settlement of borrowings due after one year Concept (Monetary) For Period Credit ifrs-full:RepaymentsOfNoncurrentBorrowings
135 Proceeds from own shares Concept (Monetary) For Period Debit ifrs-full:ProceedsFromSaleOrIssueOfTreasuryShares
136 Settlement of currency swaps Concept (Monetary) For Period Credit snn:SettlementOfCurrencySwaps
137 Equity dividends paid Concept (Monetary) For Period Credit ifrs-full:DividendsPaidToEquityHoldersOfParentClassifiedAsFinancingActivities
138 Net cash used in financing activities Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInFinancingActivities
139 Net increase/(decrease) in cash and cash equivalents Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges
140 Cash and cash equivalents at beginning of period Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
141 Exchange adjustments Concept (Monetary) For Period Debit ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalents
142 Cash and cash equivalents at end of period Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
143 Restructuring and rationalisation expenses Concept (Monetary) For Period Credit snn:PaymentOfRestructuringAndRationalisationExpenses
144 Acquisition-related costs Concept (Monetary) For Period Credit snn:PaymentOfAcquisitionRelatedCosts
145 Legal and other costs Concept (Monetary) For Period Credit snn:PaymentOfLegalAndOtherCosts
146 Bank overdrafts Concept (Monetary) As Of Credit ifrs-full:BankOverdraftsClassifiedAsCashEquivalents
147 00500 - Statement - GROUP STATEMENT OF CHANGES IN EQUITY Network

*

*

 http://www.smith-nephew.com/role/StatementGroupStatementOfChangesInEquity
148 Statement of changes in equity [table] Table

*

*

 ifrs-full:StatementOfChangesInEquityTable
149 Components of equity [axis] Axis ifrs-full:ComponentsOfEquityAxis
150 Equity [member] Member ifrs-full:EquityMember
151 Share capital Member ifrs-full:IssuedCapitalMember
152 Share premium Member ifrs-full:SharePremiumMember
153 Capital redemption reserve Member ifrs-full:CapitalRedemptionReserveMember
154 Treasury shares Member ifrs-full:TreasurySharesMember
155 Other reserves Member ifrs-full:OtherReservesMember
156 Retained earnings Member ifrs-full:RetainedEarningsMember
157 GROUP STATEMENT OF CHANGES IN EQUITY LineItems ifrs-full:StatementOfChangesInEquityLineItems
158 Balance at beginning of period Concept (Monetary) As Of Credit ifrs-full:Equity
159 Adjustment on initial application of IFRS 9 (net of tax) Concept (Monetary) As Of Credit snn:IfrsCumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption
160 Adjusted balance at beginning of period Concept (Monetary) As Of Credit snn:EquityAdjustedForCumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption
161 Attributable profit for the year Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
162 Other comprehensive (expense)/income Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncome
163 Equity dividends declared and paid Concept (Monetary) For Period Debit ifrs-full:DividendsPaid
164 Share-based payments recognised Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions
165 Taxation on share-based payments Concept (Monetary) For Period Debit ifrs-full:DecreaseIncreaseThroughTaxOnSharebasedPaymentTransactions
166 Purchase of own shares Concept (Monetary) For Period Debit ifrs-full:PurchaseOfTreasuryShares
167 Cost of shares transferred to beneficiaries Concept (Monetary) For Period Credit snn:IncreaseDecreaseThroughCostOfSharesTransferredToBeneficiaries
168 Cancellation of treasury shares Concept (Monetary) For Period Credit ifrs-full:CancellationOfTreasuryShares
169 Issue of ordinary share capital Concept (Monetary) For Period Credit ifrs-full:IssueOfEquity
170 Balance at end of period Concept (Monetary) As Of Credit ifrs-full:Equity
171 00505 - Statement - GROUP STATEMENT OF CHANGES IN EQUITY (Parenthetical) Network

*

*

 http://www.smith-nephew.com/role/StatementGroupStatementOfChangesInEquityParenthetical
172 Implied Table Table

*

*

 implied:Table
173 GROUP STATEMENT OF CHANGES IN EQUITY Abstract ifrs-full:StatementOfChangesInEquityAbstract
174 Cumulative translation loss within other reserves Concept (Monetary) As Of Credit ifrs-full:ReserveOfExchangeDifferencesOnTranslation
175 10101 - Disclosure - BASIS OF PREPARATION Network

*

*

 http://www.smith-nephew.com/role/DisclosureBasisOfPreparation
176 Implied Table Table

*

*

 implied:Table
177 BASIS OF PREPARATION Abstract snn:DisclosureOfBasisOfPreparationAbstract
178 BASIS OF PREPARATION Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfBasisOfPreparationOfFinancialStatementsExplanatory
179 10201 - Disclosure - BUSINESS SEGMENT INFORMATION Network

*

*

 http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformation
180 Implied Table Table

*

*

 implied:Table
181 BUSINESS SEGMENT INFORMATION Abstract ifrs-full:DisclosureOfOperatingSegmentsAbstract
182 BUSINESS SEGMENT INFORMATION Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfEntitysReportableSegmentsExplanatory
183 10301 - Disclosure - OPERATING PROFIT Network

*

*

 http://www.smith-nephew.com/role/DisclosureOperatingProfit
184 Implied Table Table

*

*

 implied:Table
185 GROUP INCOME STATEMENT Abstract ifrs-full:IncomeStatementAbstract
186 OPERATING PROFIT Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfProfitLossFromOperatingActivitiesExplanatory
187 10401 - Disclosure - INTEREST AND OTHER FINANCE COSTS Network

*

*

 http://www.smith-nephew.com/role/DisclosureInterestAndOtherFinanceCosts
188 Implied Table Table

*

*

 implied:Table
189 INTEREST AND OTHER FINANCE COSTS Abstract snn:DisclosureOfInterestAndOtherFinanceCostsAbstract
190 INTEREST AND OTHER FINANCE COSTS Concept (Text Block (HTML)) For Period snn:DisclosureOfInterestAndOtherFinanceCostsTextBlock
191 10501 - Disclosure - TAXATION Network

*

*

 http://www.smith-nephew.com/role/DisclosureTaxation
192 Implied Table Table

*

*

 implied:Table
193 TAXATION Abstract ifrs-full:MajorComponentsOfTaxExpenseIncomeAbstract
194 TAXATION Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfIncomeTaxExplanatory
195 10601 - Disclosure - EARNINGS PER ORDINARY SHARE Network

*

*

 http://www.smith-nephew.com/role/DisclosureEarningsPerOrdinaryShare
196 Implied Table Table

*

*

 implied:Table
197 Earnings per share [abstract] Abstract ifrs-full:EarningsPerShareAbstract
198 EARNINGS PER ORDINARY SHARE Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfEarningsPerShareExplanatory
199 10701 - Disclosure - PROPERTY, PLANT AND EQUIPMENT Network

*

*

 http://www.smith-nephew.com/role/DisclosurePropertyPlantAndEquipment
200 Implied Table Table

*

*

 implied:Table
201 PROPERTY, PLANT AND EQUIPMENT. Abstract ifrs-full:PropertyPlantAndEquipmentAbstract
202 PROPERTY, PLANT AND EQUIPMENT Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfPropertyPlantAndEquipmentExplanatory
203 10801 - Disclosure - GOODWILL Network

*

*

 http://www.smith-nephew.com/role/DisclosureGoodwill
204 Implied Table Table

*

*

 implied:Table
205 GOODWILL Abstract ifrs-full:DisclosureOfReconciliationOfChangesInGoodwillAbstract
206 GOODWILL Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfGoodwillExplanatory
207 10901 - Disclosure - INTANGIBLE ASSETS Network

*

*

 http://www.smith-nephew.com/role/DisclosureIntangibleAssets
208 Implied Table Table

*

*

 implied:Table
209 INTANGIBLE ASSETS Abstract ifrs-full:DisclosureOfIntangibleAssetsAbstract
210 INTANGIBLE ASSETS Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfIntangibleAssetsExplanatory
211 11001 - Disclosure - INVESTMENTS Network

*

*

 http://www.smith-nephew.com/role/DisclosureInvestments
212 Implied Table Table

*

*

 implied:Table
213 INVESTMENTS Abstract snn:DisclosureOfInvestmentsAbstract
214 INVESTMENTS Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFinancialInstrumentsAtFairValueThroughProfitOrLossExplanatory
215 11101 - Disclosure - INVESTMENTS IN ASSOCIATES Network

*

*

 http://www.smith-nephew.com/role/DisclosureInvestmentsInAssociates
216 Implied Table Table

*

*

 implied:Table
217 INVESTMENTS IN ASSOCIATES Abstract ifrs-full:DisclosureOfSignificantInvestmentsInAssociatesAbstract
218 INVESTMENTS IN ASSOCIATES Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfInterestsInAssociatesExplanatory
219 11201 - Disclosure - INVENTORIES Network

*

*

 http://www.smith-nephew.com/role/DisclosureInventories
220 Implied Table Table

*

*

 implied:Table
221 INVENTORIES Abstract ifrs-full:ClassesOfInventoriesAbstract
222 INVENTORIES Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfInventoriesExplanatory
223 11301 - Disclosure - TRADE AND OTHER RECEIVABLES Network

*

*

 http://www.smith-nephew.com/role/DisclosureTradeAndOtherReceivables
224 Implied Table Table

*

*

 implied:Table
225 TRADE AND OTHER RECEIVABLES. Abstract ifrs-full:TradeAndOtherCurrentReceivablesAbstract
226 TRADE AND OTHER RECEIVABLES Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfTradeAndOtherReceivablesExplanatory
227 11401 - Disclosure - TRADE AND OTHER PAYABLES Network

*

*

 http://www.smith-nephew.com/role/DisclosureTradeAndOtherPayables
228 Implied Table Table

*

*

 implied:Table
229 TRADE AND OTHER PAYABLES Abstract ifrs-full:TradeAndOtherPayablesAbstract
230 TRADE AND OTHER PAYABLES Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfTradeAndOtherPayablesExplanatory
231 11501 - Disclosure - CASH AND BORROWINGS Network

*

*

 http://www.smith-nephew.com/role/DisclosureCashAndBorrowings
232 Implied Table Table

*

*

 implied:Table
233 CASH AND BORROWINGS Abstract ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsAbstract
234 CASH AND BORROWINGS Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfBorrowingsExplanatory
235 11601 - Disclosure - FINANCIAL INSTRUMENTS AND RISK MANAGEMENT Network

*

*

 http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagement
236 Implied Table Table

*

*

 implied:Table
237 FINANCIAL INSTRUMENTS AND RISK MANAGEMENT Abstract ifrs-full:DisclosureOfFinancialInstrumentsAbstract
238 FINANCIAL INSTRUMENTS AND RISK MANAGEMENT Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFinancialRiskManagementExplanatory
239 11701 - Disclosure - PROVISIONS AND CONTINGENCIES Network

*

*

 http://www.smith-nephew.com/role/DisclosureProvisionsAndContingencies
240 Implied Table Table

*

*

 implied:Table
241 PROVISIONS AND CONTINGENCIES Abstract snn:DisclosureOfProvisionsAndContingentLiabilitiesAbstract
242 PROVISIONS AND CONTINGENCIES Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfOtherProvisionsContingentLiabilitiesAndContingentAssetsExplanatory
243 11801 - Disclosure - RETIREMENT BENEFIT OBLIGATIONS Network

*

*

 http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligations
244 Implied Table Table

*

*

 implied:Table
245 RETIREMENT BENEFIT OBLIGATIONS Abstract ifrs-full:DisclosureOfDefinedBenefitPlansAbstract
246 RETIREMENT BENEFIT OBLIGATIONS Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfEmployeeBenefitsExplanatory
247 11901 - Disclosure - EQUITY Network

*

*

 http://www.smith-nephew.com/role/DisclosureEquity
248 Implied Table Table

*

*

 implied:Table
249 EQUITY. Abstract ifrs-full:EquityAbstract
250 EQUITY Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory
251 12001 - Disclosure - CASH FLOW STATEMENT Network

*

*

 http://www.smith-nephew.com/role/DisclosureCashFlowStatement
252 Implied Table Table

*

*

 implied:Table
253 CASH FLOW STATEMENT Abstract snn:DisclosureOfCashFlowStatementAbstract
254 CASH FLOW STATEMENT Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfCashFlowStatementExplanatory
255 12101 - Disclosure - ACQUISITIONS AND DISPOSALS Network

*

*

 http://www.smith-nephew.com/role/DisclosureAcquisitionsAndDisposals
256 Implied Table Table

*

*

 implied:Table
257 ACQUISITIONS AND DISPOSALS Abstract snn:DisclosureOfDetailedInformationAboutBusinessCombinationAndDisposalsAbstract
258 ACQUISITIONS AND DISPOSALS Concept (Text Block (HTML)) For Period snn:DisclosureOfBusinessCombinationsAndDisposalsTextBlock
259 12201 - Disclosure - OPERATING LEASES Network

*

*

 http://www.smith-nephew.com/role/DisclosureOperatingLeases
260 Implied Table Table

*

*

 implied:Table
261 OPERATING LEASES Abstract ifrs-full:DisclosureOfMaturityAnalysisOfOperatingLeasePaymentsAbstract
262 OPERATING LEASES Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfLeasesExplanatory
263 12301 - Disclosure - OTHER NOTES TO THE ACCOUNTS Network

*

*

 http://www.smith-nephew.com/role/DisclosureOtherNotesToAccounts
264 Implied Table Table

*

*

 implied:Table
265 OTHER NOTES TO THE ACCOUNTS Abstract ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementAbstract
266 OTHER NOTES TO THE ACCOUNTS Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfNotesAndOtherExplanatoryInformationExplanatory
267 12401 - Disclosure - POST BALANCE SHEET EVENTS Network

*

*

 http://www.smith-nephew.com/role/DisclosurePostBalanceSheetEvents
268 Implied Table Table

*

*

 implied:Table
269 POST BALANCE SHEET EVENTS Abstract ifrs-full:DisclosureOfNonadjustingEventsAfterReportingPeriodAbstract
270 POST BALANCE SHEET EVENTS Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfEventsAfterReportingPeriodExplanatory
271 20102 - Disclosure - SIGNIFICANT ACCOUNTING POLICIES (Policies) Network

*

*

 http://www.smith-nephew.com/role/DisclosureSignificantAccountingPoliciesPolicies
272 Implied Table Table

*

*

 implied:Table
273 Accounting Policies Abstract snn:IfrsAccountingPolicesAbstract
274 BASIS OF PRESENTATION Concept (Text Block (HTML)) For Period ifrs-full:ExplanationOfMeasurementBasesUsedInPreparingFinancialStatements
275 NEW ACCOUNTING STANDARDS Concept (Text Block (HTML)) For Period snn:DescriptionOfNewAccountingStandardsPolicyTextBlock
276 CONSOLIDATION Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfBasisOfConsolidationExplanatory
277 FOREIGN CURRENCIES Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatory
278 REVENUE Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForRecognitionOfRevenue
279 RESEARCH AND DEVELOPMENT Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForResearchAndDevelopmentExpenseExplanatory
280 ADVERTISING COSTS Concept (Text Block (HTML)) For Period snn:DescriptionOfAdvertisingCostsPolicyTextBlock
281 CURRENT TAXATION Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForIncomeTaxExplanatory
282 DEFERRED TAX Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForDeferredIncomeTaxExplanatory
283 EARNINGS PER SHARE Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForEarningsPerShareExplanatory
284 PROPERTY, PLANT AND EQUIPMENT Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory
285 IMPAIRMENT OF ASSETS Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForImpairmentOfAssetsExplanatory
286 GOODWILL Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForGoodwillExplanatory
287 INTANGIBLE ASSETS Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForIntangibleAssetsOtherThanGoodwillExplanatory
288 IMPAIRMENT OF INTANGIBLE ASSETS Concept (Text Block (HTML)) For Period snn:DescriptionOfAccountingPolicyForImpairmentOfIntangibleAssetsPolicyTextBlock
289 INVESTMENTS Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForAvailableforsaleFinancialAssetsExplanatory
290 INVESTMENTS IN ASSOCIATES Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForInvestmentInAssociates
291 INVENTORIES Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForMeasuringInventories
292 TRADE AND OTHER RECEIVABLES Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForTradeAndOtherReceivablesExplanatory
293 DERIVATIVE FINANCIAL INSTRUMENTS Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForDerivativeFinancialInstrumentsExplanatory
294 MEASUREMENT OF FAIR VALUES Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForFairValueMeasurementExplanatory
295 PROVISIONS AND CONTINGENCIES Concept (Text Block (HTML)) For Period snn:DescriptionOfAccountingPolicyForProvisionsContingentLiabilitiesAndContingentAssetsPolicyTextBlock
296 RETIREMENT BENEFIT OBLIGATIONS Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForTerminationBenefits
297 EQUITY Concept (Text Block (HTML)) For Period snn:EquityPolicyPolicyTextBlock
298 CASH FLOW STATEMENT Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForCashFlowsExplanatory
299 ACQUISITIONS AND DISPOSALS Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForBusinessCombinationsExplanatory
300 OPERATING LEASES Concept (Text Block (HTML)) For Period snn:DescriptionOfAccountingPolicyForOperatingLeasesPolicyTextBlock
301 SHARE-BASED PAYMENTS Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForSharebasedPaymentTransactionsExplanatory
302 30103 - Disclosure - BASIS OF PREPARATION (Tables) Network

*

*

 http://www.smith-nephew.com/role/DisclosureBasisOfPreparationTables
303 Implied Table Table

*

*

 implied:Table
304 BASIS OF PREPARATION Abstract snn:DisclosureOfBasisOfPreparationAbstract
305 Schedule of original measurement categories under IAS 39 and the new measurement categories under IFRS 9 for each class of financial assets and financial liabilities Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfExpectedImpactOfInitialApplicationOfNewStandardsOrInterpretations
306 The exchange rates used for the translation of currencies Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfEffectOfChangesInForeignExchangeRatesExplanatory
307 30203 - Disclosure - BUSINESS SEGMENT INFORMATION (Tables) Network

*

*

 http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationTables
308 Implied Table Table

*

*

 implied:Table
309 BUSINESS SEGMENT INFORMATION Abstract ifrs-full:DisclosureOfOperatingSegmentsAbstract
310 Segment revenue reconciles to statutory revenues from continuing operations Concept (Text Block (HTML)) For Period snn:DisclosureOfSegmentsRevenueReconciliationExplanatory
311 Disaggregation of revenue Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersExplanatory
312 Trading profit reconciles to operating profit Concept (Text Block (HTML)) For Period snn:DisclosureOfSegmentsProfitReconciliationExplanatory
313 Assets and liabilities by business segment and geography Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfOperatingSegmentsExplanatory
314 30303 - Disclosure - OPERATING PROFIT (Tables) Network

*

*

 http://www.smith-nephew.com/role/DisclosureOperatingProfitTables
315 Implied Table Table

*

*

 implied:Table
316 GROUP INCOME STATEMENT Abstract ifrs-full:IncomeStatementAbstract
317 Schedule of expenses Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfExpensesExplanatory
318 30403 - Disclosure - INTEREST AND OTHER FINANCE COSTS (Tables) Network

*

*

 http://www.smith-nephew.com/role/DisclosureInterestAndOtherFinanceCostsTables
319 Implied Table Table

*

*

 implied:Table
320 INTEREST AND OTHER FINANCE COSTS Abstract snn:DisclosureOfInterestAndOtherFinanceCostsAbstract
321 Schedule of interest and other finance costs Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFinanceIncomeExpenseExplanatory
322 30503 - Disclosure - TAXATION (Tables) Network

*

*

 http://www.smith-nephew.com/role/DisclosureTaxationTables
323 Implied Table Table

*

*

 implied:Table
324 TAXATION Abstract ifrs-full:MajorComponentsOfTaxExpenseIncomeAbstract
325 Schedule of taxation charge attributable to the group Concept (Text Block (HTML)) For Period snn:IfrsScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock
326 Schedule of reconciliation of expected tax charge at the UK statutory rate with the actual tax charge Concept (Text Block (HTML)) For Period snn:IfrsScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock
327 Schedule of movements in the main components of deferred tax assets and liabilities Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDeferredTaxesExplanatory
328 30603 - Disclosure - EARNINGS PER ORDINARY SHARE (Tables) Network

*

*

 http://www.smith-nephew.com/role/DisclosureEarningsPerOrdinaryShareTables
329 Implied Table Table

*

*

 implied:Table
330 Earnings per share [abstract] Abstract ifrs-full:EarningsPerShareAbstract
331 Schedule of earnings per share Concept (Text Block (HTML)) For Period ifrs-full:EarningsPerShareExplanatory
332 30703 - Disclosure - PROPERTY, PLANT AND EQUIPMENT (Tables) Network

*

*

 http://www.smith-nephew.com/role/DisclosurePropertyPlantAndEquipmentTables
333 Implied Table Table

*

*

 implied:Table
334 PROPERTY, PLANT AND EQUIPMENT. Abstract ifrs-full:PropertyPlantAndEquipmentAbstract
335 Schedule of property, plant and equipment cost less accumulated depreciation or impairment losses Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory
336 30803 - Disclosure - GOODWILL (Table) Network

*

*

 http://www.smith-nephew.com/role/DisclosureGoodwillTable
337 Implied Table Table

*

*

 implied:Table
338 GOODWILL Abstract ifrs-full:DisclosureOfReconciliationOfChangesInGoodwillAbstract
339 Schedule of goodwill Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfReconciliationOfChangesInGoodwillExplanatory
340 30903 - Disclosure - INTANGIBLE ASSETS (Tables) Network

*

*

 http://www.smith-nephew.com/role/DisclosureIntangibleAssetsTables
341 Implied Table Table

*

*

 implied:Table
342 INTANGIBLE ASSETS Abstract ifrs-full:DisclosureOfIntangibleAssetsAbstract
343 Schedule of intangible assets Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDetailedInformationAboutIntangibleAssetsExplanatory
344 31003 - Disclosure - INVESTMENTS (Tables) Network

*

*

 http://www.smith-nephew.com/role/DisclosureInvestmentsTables
345 Implied Table Table

*

*

 implied:Table
346 INVESTMENTS Abstract snn:DisclosureOfInvestmentsAbstract
347 Disclosure of detailed information about financial instruments [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDetailedInformationAboutFinancialInstrumentsExplanatory
348 31103 - Disclosure - INVESTMENTS IN ASSOCIATES (Tables) Network

*

*

 http://www.smith-nephew.com/role/DisclosureInvestmentsInAssociatesTables
349 Implied Table Table

*

*

 implied:Table
350 INVESTMENTS IN ASSOCIATES Abstract ifrs-full:DisclosureOfSignificantInvestmentsInAssociatesAbstract
351 Schedule of amounts recognised in the balance sheet and income statement Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfInvestmentsAccountedForUsingEquityMethodExplanatory
352 Summary of financial information for Bioventus, adjusted for differences with Group accounting policies Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfSignificantInvestmentsInAssociatesExplanatory
353 31203 - Disclosure - INVENTORIES (Tables) Network

*

*

 http://www.smith-nephew.com/role/DisclosureInventoriesTables
354 Implied Table Table

*

*

 implied:Table
355 INVENTORIES Abstract ifrs-full:ClassesOfInventoriesAbstract
356 Schedule of inventory Concept (Text Block (HTML)) For Period snn:IfrsScheduleOfInventoryCurrentTableTextBlock
357 31303 - Disclosure - TRADE AND OTHER RECEIVABLES (Tables) Network

*

*

 http://www.smith-nephew.com/role/DisclosureTradeAndOtherReceivablesTables
358 Implied Table Table

*

*

 implied:Table
359 TRADE AND OTHER RECEIVABLES. Abstract ifrs-full:TradeAndOtherCurrentReceivablesAbstract
360 Schedule of trade and other receivables Concept (Text Block (HTML)) For Period snn:DisclosureOfDetailsOfTradeAndOtherReceivablesExplanatory
361 Schedule of trade receivables - net Concept (Text Block (HTML)) For Period snn:DisclosureOfNetTradeReceivablesExplanatory
362 Schedule of movements in loss allowance Concept (Text Block (HTML)) For Period snn:DisclosureOfMovementInLossAllowanceReceivablesExplanatoryTableTextBlock
363 Schedule of trade receivables denominated by currency Concept (Text Block (HTML)) For Period snn:DisclosureOfNetTradeReceivablesByCurrencyExplanatory
364 31403 - Disclosure - TRADE AND OTHER PAYABLES (Tables) Network

*

*

 http://www.smith-nephew.com/role/DisclosureTradeAndOtherPayablesTables
365 Implied Table Table

*

*

 implied:Table
366 TRADE AND OTHER PAYABLES Abstract ifrs-full:TradeAndOtherPayablesAbstract
367 Schedule of trade and other payables Concept (Text Block (HTML)) For Period snn:DisclosureOfDetailsOfTradeAndOtherPayablesTableTextBlock
368 31503 - Disclosure - CASH AND BORROWINGS (Tables) Network

*

*

 http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsTables
369 Implied Table Table

*

*

 implied:Table
370 CASH AND BORROWINGS Abstract ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsAbstract
371 Schedule of net debt Concept (Text Block (HTML)) For Period snn:DisclosureOfNetDebtTableTextBlock
372 Schedule of borrowings repayable Concept (Text Block (HTML)) For Period snn:DisclosureOfBorrowingRepayableTableTextBlock
373 Schedule of committed facility Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsExplanatory
374 Schedule of year end financial liabilities by contractual maturity Concept (Text Block (HTML)) For Period snn:DisclosureOfMaturityAnalysisOfFinancialLiabilitiesTableTextBlock
375 31603 - Disclosure - FINANCIAL INSTRUMENTS AND RISK MANAGEMENT (Table) Network

*

*

 http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementTable
376 Implied Table Table

*

*

 implied:Table
377 FINANCIAL INSTRUMENTS AND RISK MANAGEMENT Abstract ifrs-full:DisclosureOfFinancialInstrumentsAbstract
378 Schedule of items designated as hedging instruments Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDetailedInformationAboutHedgingInstrumentsExplanatory
379 Currency and interest rate profile of interest bearing liabilities Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFinancialLiabilitiesExplanatory
380 Currency and interest rate profile of interest bearing assets Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFinancialAssetsExplanatory
381 Schedule of fair value of financial instruments Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFairValueOfFinancialInstrumentsExplanatory
382 31703 - Disclosure - PROVISIONS AND CONTINGENCIES (Tables) Network

*

*

 http://www.smith-nephew.com/role/DisclosureProvisionsAndContingenciesTables
383 Implied Table Table

*

*

 implied:Table
384 PROVISIONS AND CONTINGENCIES Abstract snn:DisclosureOfProvisionsAndContingentLiabilitiesAbstract
385 Schedule of provisions Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfOtherProvisionsExplanatory
386 31803 - Disclosure - RETIREMENT BENEFIT OBLIGATIONS (Table) Network

*

*

 http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsTable
387 Implied Table Table

*

*

 implied:Table
388 RETIREMENT BENEFIT OBLIGATIONS Abstract ifrs-full:DisclosureOfDefinedBenefitPlansAbstract
389 Schedule of the Group’s retirement benefit obligations Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDefinedBenefitPlansExplanatory
390 Reconciliation of benefit obligations and pension assets Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetExplanatory
391 Market value of the US, UK and Other Plans assets Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFairValueOfPlanAssetsExplanatory
392 Defined benefit pension costs charged for the UK and US Plans Concept (Text Block (HTML)) For Period snn:DisclosureOfDefinedBenefitPensionCostsChargedTableTextBlock
393 Principal actuarial assumptions Concept (Text Block (HTML)) For Period snn:DisclosureOfPrincipalActuarialAssumptionsTableTextBlock
394 Current longevities underlying the values of the obligations in the defined benefit plans Concept (Text Block (HTML)) For Period snn:DisclosureOfLifeExpectanciesUnderlyingValuesOfObligationsInDefinedBenefitPlansTableTextBlock
395 Sensitivity analysis Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfSensitivityAnalysisForActuarialAssumptionsExplanatory
396 Risk Concept (Text Block (HTML)) For Period snn:DisclosureOfPensionPlanRiskTableTextBlock
397 31903 - Disclosure - EQUITY (Table) Network

*

*

 http://www.smith-nephew.com/role/DisclosureEquityTable
398 Implied Table Table

*

*

 implied:Table
399 EQUITY. Abstract ifrs-full:EquityAbstract
400 Schedule of share capital Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfClassesOfShareCapitalExplanatory
401 Schedule of the capital Concept (Text Block (HTML)) For Period snn:ScheduleOfEquityComponentsTableTextBlock
402 Schedule of treasury shares Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfTreasurySharesExplanatory
403 Schedule of dividends Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDividendsExplanatory
404 32003 - Disclosure - CASH FLOW STATEMENT (Tables) Network

*

*

 http://www.smith-nephew.com/role/DisclosureCashFlowStatementTables
405 Implied Table Table

*

*

 implied:Table
406 CASH FLOW STATEMENT Abstract snn:DisclosureOfCashFlowStatementAbstract
407 Schedule of cash flow statement Concept (Text Block (HTML)) For Period snn:DisclosureOfCashFlowStatementTableTextBlock
408 32103 - Disclosure - ACQUISITIONS AND DISPOSALS (Tables) Network

*

*

 http://www.smith-nephew.com/role/DisclosureAcquisitionsAndDisposalsTables
409 Disclosure of detailed information about business combination [table] Table

*

*

 ifrs-full:DisclosureOfBusinessCombinationsTable
410 Business combinations [axis] Axis ifrs-full:BusinessCombinationsAxis
411 Entity's total for business combinations [member] Member ifrs-full:EntitysTotalForBusinessCombinationsMember
412 Rotation Medical Inc Member snn:RotationMedicalMember
413 Blue Belt Holdings Inc Member snn:BlueBeltHoldingsIncMember
414 Ifrs Statement [Line Items] LineItems snn:IfrsStatementLineItems
415 Schedule of fair value of assets acquired and liabilities assumed Concept (Text Block (HTML)) For Period snn:DisclosureOfBusinessCombinationsTableTextBlock
416 32203 - Disclosure - OPERATING LEASES - (Tables) Network

*

*

 http://www.smith-nephew.com/role/DisclosureOperatingLeasesTables
417 Implied Table Table

*

*

 implied:Table
418 OPERATING LEASES Abstract ifrs-full:DisclosureOfMaturityAnalysisOfOperatingLeasePaymentsAbstract
419 Schedule of Future minimum lease payments under non-cancellable operating leases Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfAdditionalInformationAboutLeasingActivitiesForLesseeExplanatory
420 32303 - Disclosure - OTHER NOTES TO THE ACCOUNTS (Tables) Network

*

*

 http://www.smith-nephew.com/role/DisclosureOtherNotesToAccountsTables
421 Implied Table Table

*

*

 implied:Table
422 OTHER NOTES TO THE ACCOUNTS Abstract ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementAbstract
423 Schedule of remuneration of executive officers (including Non-Executive Directors) Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfRelatedPartyExplanatory
424 40101 - Disclosure - BASIS OF PREPARATION (Details) Network

*

*

 http://www.smith-nephew.com/role/DisclosureBasisOfPreparationDetails
425 Disclosure of detailed informations about basis of preparation [Table] Table

*

*

 snn:DisclosureOfDetailedInformationsAboutBasisOfPreparationTable
426 Borrowings by name [axis] Axis ifrs-full:BorrowingsByNameAxis
427 Borrowings by name [member] Member ifrs-full:BorrowingsByNameMember
428 Committed facilities Member snn:CommittedFacilitiesMember
429 Senior Notes and Floating Rate Senior Notes Maturing November 2019 Member snn:SeniorNotesAndFloatingRateSeniorNotesMaturingNovember2019Member
430 Disclosure of detailed informations about basis of preparation [line items] LineItems snn:DisclosureOfDetailedInformationsAboutBasisOfPreparationLineItems
431 Committed facilities Concept (Monetary) As Of Credit snn:IfrsLineOfCreditFacilityMaximumBorrowingCapacity
432 Amount contracted Concept (Monetary) As Of ifrs-full:NotionalAmount
433 Total liquidity Concept (Monetary) As Of Debit snn:TotalLiquidity
434 Net cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
435 Undrawn committed borrowing facilities Concept (Monetary) As Of Credit ifrs-full:UndrawnBorrowingFacilities
436 Minimum number of years of continued operational existence Concept (Integer) As Of snn:MinimumNumberOfYearsOfContinuedOperationalExistence
437 Exchange rates Abstract ifrs-full:ForeignExchangeRatesAbstract
438 Average rates Concept (Decimal) For Period ifrs-full:AverageForeignExchangeRate
439 Year end rates Concept (Decimal) As Of ifrs-full:ClosingForeignExchangeRate
440 40102 - Disclosure - BASIS OF PREPARATION - New accounting standards (Details) Network

*

*

 http://www.smith-nephew.com/role/DisclosureBasisOfPreparationNewAccountingStandardsDetails
441 Disclosure of expected impact of initial application of new standards or interpretations [table] Table

*

*

 ifrs-full:DescriptionOfExpectedImpactOfInitialApplicationOfNewStandardsOrInterpretationsTable
442 New IFRSs [axis] Axis ifrs-full:NewIFRSsAxis
443 New IFRSs [member] Member ifrs-full:NewIFRSsMember
444 IFRS 9 Member ifrs-full:InAccordanceWithIFRS9Member
445 IFRS 16 Member snn:Ifrs16Member
446 Retrospective application and retrospective restatement [axis] Axis ifrs-full:RetrospectiveApplicationAndRetrospectiveRestatementAxis
447 Currently stated [member] Member ifrs-full:RestatedMember
448 Adoption of IFRS 9 Member snn:IncreaseDecreaseDueToApplicationOfIfrs9Member
449 Adoption of IFRS 16 Member snn:IncreaseDecreaseDueToApplicationOfIfrs16Member
450 Categories of financial assets [axis] Axis ifrs-full:CategoriesOfFinancialAssetsAxis
451 Financial assets, category [member] Member ifrs-full:FinancialAssetsCategoryMember
452 Fair value - hedging instrument Member snn:DerivativesDesignatedAsHedgingInstrumentsCategoryMember
453 Available-for-sale Member ifrs-full:FinancialAssetsAvailableforsaleCategoryMember
454 Financial assets at fair value through profit or loss Member ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember
455 Loans and receivables Member ifrs-full:LoansAndReceivablesCategoryMember
456 Amortised cost Member ifrs-full:FinancialAssetsAtAmortisedCostCategoryMember
457 Categories of financial liabilities [axis] Axis ifrs-full:CategoriesOfFinancialLiabilitiesAxis
458 Financial liabilities, category [member] Member ifrs-full:FinancialLiabilitiesCategoryMember
459 Fair value through profit or loss Member ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember
460 Fair value - hedging instrument Member snn:DerivativesDesignatedAsHedgingInstrumentsCategoryMember
461 Amortised cost Member ifrs-full:FinancialLiabilitiesAtAmortisedCostCategoryMember
462 Other financial liability Member snn:OtherFinancialLiabilityMember
463 Classes of financial assets [axis] Axis ifrs-full:ClassesOfFinancialAssetsAxis
464 Financial assets, class [member] Member ifrs-full:FinancialAssetsMember
465 Forward foreign exhange contracts Member ifrs-full:ForwardContractMember
466 Investments Member snn:FinancialAssetsInvestmentsMember
467 Currency swaps Member ifrs-full:CurrencySwapContractMember
468 Trade receivables Member ifrs-full:TradeReceivablesMember
469 Cash at bank Member snn:FinancialAssetsCashMember
470 Classes of financial liabilities [axis] Axis ifrs-full:ClassesOfFinancialLiabilitiesAxis
471 Financial liabilities, class [member] Member ifrs-full:FinancialLiabilitiesMember
472 Acquisition consideration Member snn:AcquisitionConsiderationMember
473 Forward foreign exhange contracts Member ifrs-full:ForwardContractMember
474 Currency swaps Member ifrs-full:CurrencySwapContractMember
475 Interest swaps Member ifrs-full:InterestRateSwapContractMember
476 Private placement debt Member snn:PrivatePlacementDebtMember
477 Bank overdrafts Member snn:BankOverdraftsLiabilitiesMember
478 Bank loans Member snn:BankLoansMember
479 Trade and other payables Member snn:TradeAndOtherPayablesMember
480 Type of measurement of expected credit losses [axis] Axis ifrs-full:TypeOfMeasurementOfExpectedCreditLossesAxis
481 Type of measurement of expected credit losses [member] Member ifrs-full:TypeOfMeasurementOfExpectedCreditLossesMember
482 Lifetime expected credit losses Member ifrs-full:LifetimeExpectedCreditLossesMember
483 Range [axis] Axis ifrs-full:RangeAxis
484 Ranges [member] Member ifrs-full:RangesMember
485 Minimium Member ifrs-full:BottomOfRangeMember
486 Maximum Member ifrs-full:TopOfRangeMember
487 Disclosure of expected impact of initial application of new standards or interpretations [line items] LineItems ifrs-full:DescriptionOfExpectedImpactOfInitialApplicationOfNewStandardsOrInterpretationsLineItems
488 Total financial assets Concept (Monetary) As Of Debit ifrs-full:FinancialAssets
489 Total financial liabilities Concept (Monetary) As Of Credit ifrs-full:FinancialLiabilities
490 Deferred tax credit Concept (Monetary) As Of Debit ifrs-full:DeferredTaxAssets
491 Right of use assets Concept (Monetary) As Of Debit ifrs-full:RightofuseAssets
492 Lease liabilities Concept (Monetary) As Of Credit ifrs-full:LeaseLiabilities
493 40201 - Disclosure - BUSINESS SEGMENT INFORMATION (Details) Network

*

*

 http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationDetails
494 Disclosure of operating segments [table] Table

*

*

 ifrs-full:DisclosureOfOperatingSegmentsTable
495 Products and services [axis] Axis ifrs-full:ProductsAndServicesAxis
496 Products and services [member] Member ifrs-full:ProductsAndServicesMember
497 Reconstruction, Sports Medicine, Trauma and Other Surgical Businesses Member snn:ReconstructionSportsMedicineTraumaAndOtherSurgicalBusinessesMember
498 Sports Medicine Joint Repair Member snn:SportsMedicineJointRepairMember
499 Arthroscopic Enabling Technologies Member snn:ArthroscopicEnablingTechnologiesMember
500 Trauma & Extremities Member snn:TraumaExtremitiesMember
501 Other Surgical Businesses Member snn:OtherSurgicalBusinessesMember
502 Knee Implants Member snn:KneeImplantsMember
503 Hip Implants Member snn:HipImplantsMember
504 Advanced Wound Management Member snn:AdvancedWoundManagementMember
505 Advanced Wound Care Member snn:AdvancedWoundCareMember
506 Advanced Wound Bioactives Member snn:AdvancedWoundBioactivesMember
507 Advanced Wound Devices Member snn:AdvancedWoundDevicesMember
508 Markets of customers [axis] Axis ifrs-full:MarketsOfCustomersAxis
509 Markets of customers [member] Member ifrs-full:MarketsOfCustomersMember
510 Established Markets Member snn:EstablishedMarketsMember
511 Emerging Markets Member snn:EmergingMarketsMember
512 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
513 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
514 United Kingdom Member country:GB
515 United States of America Member country:US
516 Disclosure of operating segments [line items] LineItems ifrs-full:DisclosureOfOperatingSegmentsLineItems
517 Number of geographical selling regions Concept (Integer) For Period snn:NumberOfGeographicalSellingRegions
518 Number of global franchise divisions Concept (Integer) For Period snn:NumberOfGlobalFranchiseDivisions
519 Number of reportable segments Concept (Integer) For Period snn:IfrsNumberOfReportableSegments
520 Number of operating segments Concept (Integer) For Period snn:IfrsNumberOfOperatingSegments
521 Revenue Concept (Monetary) For Period Credit ifrs-full:RevenueFromContractsWithCustomers
522 Unsatisfied performance obligation Concept (Monetary) As Of Credit ifrs-full:TransactionPriceAllocatedToRemainingPerformanceObligations
523 Accrual for rebates Concept (Monetary) As Of Credit ifrs-full:ContractLiabilities
524 Revenue recognised, rebates Concept (Monetary) For Period Credit ifrs-full:RevenueThatWasIncludedInContractLiabilityBalanceAtBeginningOfPeriod
525 40202 - Disclosure - BUSINESS SEGMENT INFORMATION - Trading and operating profit by business segment (Details) Network

*

*

 http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationTradingAndOperatingProfitByBusinessSegmentDetails
526 Implied Table Table

*

*

 implied:Table
527 BUSINESS SEGMENT INFORMATION Abstract ifrs-full:DisclosureOfOperatingSegmentsAbstract
528 Operating profit Concept (Monetary) For Period Credit ifrs-full:ProfitLossFromOperatingActivities
529 Acquisition and disposal related items Concept (Monetary) For Period Debit snn:AcquisitionAndDisposalRelatedCostsRecognisedAsExpenseIncomeForTransactionRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombination
530 Restructuring and rationalisation expenses Concept (Monetary) For Period Debit ifrs-full:ExpenseOfRestructuringActivities
531 Amortisation and impairment of acquisition intangibles Concept (Monetary) For Period Debit snn:AmortisationAndImpairmentOfAcquisitionIntangibles
532 Legal and other Concept (Monetary) For Period Debit snn:LegalAndOtherExpenseOutsideTrading
533 Trading profit of the business segment Concept (Monetary) For Period Credit ifrs-full:TradingIncomeExpense
534 Net credit Concept (Monetary) For Period Credit snn:InsuranceRecoveriesAndLegalExpensesNetRelatingToOngoingMetalOnMetalHipClaims
535 Legal expenses Concept (Monetary) For Period Debit snn:LegalExpensesRelatingToOngoingMetalOnMetalHipClaims
536 Increase in legal provision relating to metal-on-metal hip claims Concept (Monetary) For Period Credit snn:IncreaseDecreaseInLegalProvisionMetalOnMetalHipClaims
537 Curtailment gain Concept (Monetary) For Period Credit snn:DefinedBenefitPlanCurtailmentGainsLosses
538 Legal settlement Concept (Monetary) For Period Credit snn:LegalSettlementReceived
539 Credit for insurance recoveries Concept (Monetary) For Period Credit snn:InsuranceRecoveriesReceived
540 40203 - Disclosure - BUSINESS SEGMENT INFORMATION - Assets and liabilities by business segment and geography (Details) Network

*

*

 http://www.smith-nephew.com/role/DisclosureBusinessSegmentInformationAssetsAndLiabilitiesByBusinessSegmentAndGeographyDetails
541 Disclosure of operating segments [table] Table

*

*

 ifrs-full:DisclosureOfOperatingSegmentsTable
542 Segment consolidation items [axis] Axis ifrs-full:SegmentConsolidationItemsAxis
543 Entity's total for segment consolidation items [member] Member ifrs-full:EntitysTotalForSegmentConsolidationItemsMember
544 Operating segments Member ifrs-full:OperatingSegmentsMember
545 Unallocated amounts Member ifrs-full:UnallocatedAmountsMember
546 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
547 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
548 United Kingdom Member country:GB
549 United States of America Member country:US
550 Other Member snn:RestOfWorldExcludingUnitedKingdomAndUnitedStatesOfAmericaMember
551 Disclosure of operating segments [line items] LineItems ifrs-full:DisclosureOfOperatingSegmentsLineItems
552 Deferred tax assets Concept (Monetary) As Of Debit ifrs-full:DeferredTaxAssets
553 Retirement benefit asset Concept (Monetary) As Of Debit ifrs-full:NoncurrentRecognisedAssetsDefinedBenefitPlan
554 Cash at bank Concept (Monetary) As Of Debit ifrs-full:BalancesWithBanks
555 Total assets Concept (Monetary) As Of Debit ifrs-full:Assets
556 Non-current assets Concept (Monetary) As Of Debit snn:NoncurrentAssetsOtherThanRetirementBenefitAssetsAndDeferredTaxAssets
557 Liabilities Concept (Monetary) As Of Credit ifrs-full:Liabilities
558 Long-term borrowings Concept (Monetary) As Of Credit ifrs-full:LongtermBorrowings
559 Retirement benefit obligations Concept (Monetary) As Of Credit ifrs-full:NoncurrentRecognisedLiabilitiesDefinedBenefitPlan
560 Deferred tax liabilities Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilities
561 Bank overdrafts and loans Concept (Monetary) As Of Credit ifrs-full:ShorttermBorrowings
562 Current tax payable Concept (Monetary) As Of Credit ifrs-full:CurrentTaxLiabilitiesCurrent
563 Depreciation of property, plant and equipment Concept (Monetary) For Period ifrs-full:DepreciationPropertyPlantAndEquipment
564 Amortisation of acquisition intangibles Concept (Monetary) For Period Debit snn:AmortisationIntangibleAssetsAcquisition
565 Amortisation of other intangible assets Concept (Monetary) For Period Debit snn:AmortisationIntangibleAssetsOtherThanAcquisitionIntangibles
566 Total depreciation and amortisation expense Concept (Monetary) For Period Debit ifrs-full:DepreciationAndAmortisationExpense
567 Impairment of property, plant and equipment Concept (Monetary) For Period ifrs-full:ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment
568 Impairment losses on acquisition intangibles Concept (Monetary) For Period Debit snn:ImpairmentLossRecognisedInProfitOrLossAcquisitionIntangibleAssets
569 Impairment losses on other intangible assets Concept (Monetary) For Period Debit snn:ImpairmentLossRecognisedInProfitOrLossOtherIntangibleAssets
570 Impairment reversal on trade investments Concept (Monetary) For Period Credit ifrs-full:ReversalOfImpairmentLossRecognisedInProfitOrLoss
571 Total non-cash items Concept (Monetary) For Period Debit snn:AdjustmentsForDepreciationAndAmortisationExpenseAndImpairmentLoss
572 Additions to property, plant and equipment Concept (Monetary) For Period Debit ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment
573 Additions to intangibles Concept (Monetary) For Period Debit ifrs-full:AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill
574 Capital expenditure (excluding business combinations) Concept (Monetary) For Period Debit ifrs-full:AdditionsToNoncurrentAssets
575 Trade investments Concept (Monetary) For Period Debit snn:AcquisitionsThroughBusinessCombinationsTradeInvestments
576 Acquisitions – Goodwill Concept (Monetary) For Period Debit snn:AcquisitionsThroughBusinessCombinationsIntangibleAssetsGoodwill
577 Acquisitions – Intangible assets Concept (Monetary) For Period Debit ifrs-full:AcquisitionsThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill
578 Acquisitions – Property, plant and equipment Concept (Monetary) For Period Debit ifrs-full:AcquisitionsThroughBusinessCombinationsPropertyPlantAndEquipment
579 Capital and acquisition expenditure Concept (Monetary) For Period Debit snn:AdditionsToNonCurrentAssetsIncludingThroughBusinessCombinations
580 40301 - Disclosure - OPERATING PROFIT (Details) Network

*

*

 http://www.smith-nephew.com/role/DisclosureOperatingProfitDetails
581 Implied Table Table

*

*

 implied:Table
582 GROUP INCOME STATEMENT Abstract ifrs-full:IncomeStatementAbstract
583 Revenue Concept (Monetary) For Period Credit ifrs-full:RevenueFromContractsWithCustomers
584 Cost of goods sold Concept (Monetary) For Period Debit ifrs-full:CostOfSales
585 Gross profit Concept (Monetary) For Period Credit ifrs-full:GrossProfit
586 Research and development expenses Concept (Monetary) For Period Debit ifrs-full:ResearchAndDevelopmentExpense
587 Marketing, selling and distribution expenses Concept (Monetary) For Period Debit ifrs-full:SalesAndMarketingExpense
588 Administrative expenses Concept (Monetary) For Period Debit ifrs-full:AdministrativeExpense
589 Selling, general and administrative expenses Concept (Monetary) For Period Debit ifrs-full:SellingGeneralAndAdministrativeExpense
590 Operating profit Concept (Monetary) For Period Credit ifrs-full:ProfitLossFromOperatingActivities
591 Charge relating to legal and other items Concept (Monetary) For Period Debit snn:ChargeRelatingToLegalAndOtherItems
592 Change for the year - amortisation Concept (Monetary) For Period ifrs-full:AmortisationIntangibleAssetsOtherThanGoodwill
593 Restructuring and rationalisation expenses included in administrative expenses Concept (Monetary) For Period Debit snn:ExpenseOfRestructuringActivitiesIncludedInAdministrativeExpenses
594 Amortisation and Impairment of Acquisition Intangibles Concept (Monetary) For Period Debit snn:AmortisationAndImpairmentOfAcquisitionIntangibles
595 Legal and other charges Concept (Monetary) For Period Debit snn:LegalAndOtherExpense
596 Legal and other Concept (Monetary) For Period Debit snn:LegalAndOtherExpenseOutsideTrading
597 Legal and other items Concept (Monetary) For Period Debit snn:LegalAndOtherItems
598 Acquisition-related costs included in administrative expenses Concept (Monetary) For Period Debit snn:AcquisitionRelatedCostsRecognisedAsExpenseInBusinessCombinationIncludedInAdministrativeExpenses
599 Other operating income Concept (Monetary) For Period Credit ifrs-full:MiscellaneousOtherOperatingIncome
600 Amortisation of intangibles Concept (Monetary) For Period Debit ifrs-full:AmortisationExpense
601 Impairment of intangible assets Concept (Monetary) For Period ifrs-full:ImpairmentLossRecognisedInProfitOrLossIntangibleAssetsAndGoodwill
602 Impairment of property, plant and equipment Concept (Monetary) For Period ifrs-full:ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment
603 Depreciation of property, plant and equipment Concept (Monetary) For Period ifrs-full:DepreciationPropertyPlantAndEquipment
604 Loss on disposal of property, plant and equipment and intangible assets Concept (Monetary) For Period Debit ifrs-full:LossesOnDisposalsOfPropertyPlantAndEquipment
605 Operating lease payments for land and buildings Concept (Monetary) For Period Debit snn:OperatingLeaseExpenseForLandAndBuildingsRecognisedAsExpense
606 Operating lease payments for other assets Concept (Monetary) For Period Debit snn:OperatingLeaseExpenseForOtherAssetsRecognisedAsExpense
607 Advertising costs Concept (Monetary) For Period Debit snn:AdvertisingCosts
608 Other operating income Concept (Monetary) For Period Credit ifrs-full:OtherOperatingIncomeExpense
609 40302 - Disclosure - OPERATING PROFIT - Information about the nature and cost of services (Details) Network

*

*

 http://www.smith-nephew.com/role/DisclosureOperatingProfitInformationAboutNatureAndCostOfServicesDetails
610 Disclosure of operating profit [table] Table

*

*

 snn:DisclosureOfOperatingProfitTable
611 Ifrs Statement Scenario [Axis] Axis snn:IfrsStatementScenarioAxis
612 Ifrs Scenario, Unspecified [Domain] Member snn:IfrsScenarioUnspecifiedDomain
613 Previously Reported Member snn:IfrsScenarioPreviouslyReportedMember
614 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
615 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
616 United Kingdom Member country:GB
617 Outside the UK Member snn:RestOfWorldExcludingUnitedKingdomMember
618 Defined benefit plans [axis] Axis ifrs-full:DefinedBenefitPlansAxis
619 Defined benefit plans [member] Member ifrs-full:DefinedBenefitPlansMember
620 UK Plan Member snn:UkPlanMember
621 Disclosure of operating profit [line items] LineItems snn:DisclosureOfOperatingProfitLineItems
622 Wages and salaries Concept (Monetary) For Period Debit ifrs-full:WagesAndSalaries
623 Social security costs Concept (Monetary) For Period Debit ifrs-full:SocialSecurityContributions
624 Pension costs (including retirement healthcare Concept (Monetary) For Period Debit ifrs-full:TerminationBenefitsExpense
625 Share-based payments Concept (Monetary) For Period Debit ifrs-full:ExpenseFromSharebasedPaymentTransactionsWithEmployees
626 Staff costs Concept (Monetary) For Period Debit ifrs-full:EmployeeBenefitsExpense
627 Wages and salaries cost Concept (Monetary) For Period Debit snn:WagesAndSalariesCost
628 Past service credit Concept (Monetary) For Period Debit snn:DefinedBenefitPlansPastServiceCost
629 Average number of employees Concept (Decimal) For Period ifrs-full:AverageNumberOfEmployees
630 Audit services: Abstract ifrs-full:AuditorsRemunerationAbstract
631 Group accounts Concept (Monetary) For Period Debit snn:AuditorsRemunerationForAuditServicesOfGroupAccounts
632 Local statutory audit pursuant to legislation Concept (Monetary) For Period Debit snn:AuditorsRemunerationForAuditServicesForLocalStatutoryAuditPursuantToLegislation
633 Non-audit services Concept (Monetary) For Period Debit ifrs-full:AuditorsRemunerationForOtherServices
634 Compliance services Concept (Monetary) For Period Debit snn:AuditorsRemunerationForTaxServicesRelatedToComplianceServices
635 Total auditor's remuneration Concept (Monetary) For Period Debit ifrs-full:AuditorsRemuneration
636 40401 - Disclosure - INTEREST AND OTHER FINANCE COSTS (Details) Network

*

*

 http://www.smith-nephew.com/role/DisclosureInterestAndOtherFinanceCostsDetails
637 Implied Table Table

*

*

 implied:Table
638 INTEREST AND OTHER FINANCE COSTS Abstract snn:DisclosureOfInterestAndOtherFinanceCostsAbstract
639 Interest income Concept (Monetary) For Period Credit ifrs-full:FinanceIncome
640 Bank borrowings Concept (Monetary) For Period Debit ifrs-full:InterestExpenseOnBorrowings
641 Private placement notes Concept (Monetary) For Period Debit snn:InterestExpenseOnPrivatePlacementNotes
642 Other Concept (Monetary) For Period Debit ifrs-full:InterestExpenseOnOtherFinancialLiabilities
643 Total interest expense Concept (Monetary) For Period Debit ifrs-full:InterestExpense
644 Net interest expense Concept (Monetary) For Period Credit ifrs-full:InterestRevenueExpense
645 40402 - Disclosure - INTEREST AND OTHER FINANCE COSTS (Details 2) Network

*

*

 http://www.smith-nephew.com/role/DisclosureInterestAndOtherFinanceCostsDetails2
646 Implied Table Table

*

*

 implied:Table
647 INTEREST AND OTHER FINANCE COSTS Abstract snn:DisclosureOfInterestAndOtherFinanceCostsAbstract
648 Retirement benefit net interest expense Concept (Monetary) For Period Debit snn:RetirementBenefitNetInterestExpense
649 Unwinding of discount Concept (Monetary) For Period Debit ifrs-full:ExpenseDueToUnwindingOfDiscountOnProvisions
650 Other Concept (Monetary) For Period Debit snn:OtherFinanceCostExcludingRetirementBenefitAndUnwindingOfDiscount
651 Other finance costs Concept (Monetary) For Period Debit ifrs-full:OtherFinanceCost
652 Foreign exchange gains or losses Concept (Monetary) For Period Credit snn:GainsLossesOnExchangeDifferencesOnTranslationOnIntercompanyAndBorrowings
653 40501 - Disclosure - TAXATION - Taxation attributable to the Group (Details) Network

*

*

 http://www.smith-nephew.com/role/DisclosureTaxationTaxationAttributableToGroupDetails
654 Implied Table Table

*

*

 implied:Table
655 TAXATION Abstract ifrs-full:MajorComponentsOfTaxExpenseIncomeAbstract
656 Current taxation: Abstract ifrs-full:CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriodsAbstract
657 UK corporation tax Concept (Monetary) For Period Debit snn:CurrentTaxExpenseIncomeAtApplicableTaxRate
658 Overseas tax Concept (Monetary) For Period Debit snn:CurrentTaxEffectOfForeignTaxRates
659 Current income tax charge Concept (Monetary) For Period Debit ifrs-full:CurrentTaxExpenseIncome
660 Adjustments in respect of prior periods Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForCurrentTaxOfPriorPeriod
661 Total current taxation Concept (Monetary) For Period Debit ifrs-full:CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriods
662 Deferred taxation: Abstract ifrs-full:DeferredTaxExpenseIncomeAbstract
663 Origination and reversal of temporary differences Concept (Monetary) For Period Debit ifrs-full:DeferredTaxExpenseIncomeRelatingToOriginationAndReversalOfTemporaryDifferences
664 Changes in tax rates Concept (Monetary) For Period Debit ifrs-full:DeferredTaxExpenseIncomeRelatingToTaxRateChangesOrImpositionOfNewTaxes
665 Adjustments to estimated amounts arising in prior periods Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDeferredTaxOfPriorPeriods
666 Total deferred taxation Concept (Monetary) For Period Debit ifrs-full:DeferredTaxExpenseIncome
667 Total taxation as per the income statement Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
668 Taxation in other comprehensive income Concept (Monetary) For Period Debit ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLoss
669 Taxation in equity Concept (Monetary) For Period Debit ifrs-full:CurrentAndDeferredTaxRelatingToItemsChargedOrCreditedDirectlyToEquity
670 Taxation attributable to the Group Concept (Monetary) For Period Debit snn:IncomeTaxExpenseRelatingToContinuingOperationsComponentsOfOtherComprehensiveIncomeAndItemsChargedOrCreditedDirectlyToEquity
671 Net prior period adjustment benefit Concept (Monetary) For Period Debit snn:AdjustmentsForCurrentAndDeferredTaxOfPriorPeriodNet
672 Impact of US Tax Reform Concept (Monetary) For Period Credit snn:TaxBenefitArisingFromUSTaxReform
673 Taxation on excluded items Concept (Monetary) For Period Debit snn:TaxationOnExcludedItems
674 Taxation on excluded items, including US tax reform Concept (Monetary) For Period Debit snn:TaxationOnExcludedItemsIncludingTaxBenefitOfUSTaxReform
675 40502 - Disclosure - TAXATION - Factors affecting future tax charges (Details) Network

*

*

 http://www.smith-nephew.com/role/DisclosureTaxationFactorsAffectingFutureTaxChargesDetails
676 Disclosure of geographical areas [table] Table

*

*

 ifrs-full:DisclosureOfGeographicalAreasTable
677 Ifrs Statement Scenario [Axis] Axis snn:IfrsStatementScenarioAxis
678 Ifrs Scenario, Unspecified [Domain] Member snn:IfrsScenarioUnspecifiedDomain
679 Forecast Member snn:IfrsScenarioForecastMember
680 Disclosure of geographical areas [line items] LineItems ifrs-full:DisclosureOfGeographicalAreasLineItems
681 Reconciliation of expected tax charge Abstract ifrs-full:ReconciliationOfAverageEffectiveTaxRateAndApplicableTaxRateAbstract
682 Current tax payable Concept (Monetary) As Of Credit ifrs-full:CurrentTaxLiabilitiesCurrent
683 Provision for uncertain tax positions Concept (Monetary) As Of Credit snn:ProvisionForUncertainTaxPositions
684 Other interest on provision for uncertain tax positions Concept (Monetary) As Of Credit snn:OtherInterestOnProvision
685 Maximum potential liability related to UK CFC Concept (Monetary) As Of Credit snn:MaximumPotentialLiability
686 Estimated tax refund Concept (Monetary) As Of Debit snn:EstimatedTaxRefund
687 Impact of US Tax Reform Concept (Monetary) For Period Credit snn:TaxBenefitArisingFromUSTaxReform
688 Tax benefit recognized from appeal Concept (Monetary) For Period Credit ifrs-full:GainsOnLitigationSettlements
689 UK corporation tax rate (as a percent) Concept (Percent) For Period ifrs-full:ApplicableTaxRate
690 Profit before taxation Concept (Monetary) For Period Credit ifrs-full:AccountingProfit
691 Expected taxation at UK statutory rate Concept (Monetary) For Period Debit ifrs-full:TaxExpenseIncomeAtApplicableTaxRate
692 Differences in overseas taxation rates Concept (Monetary) For Period Debit ifrs-full:TaxEffectOfForeignTaxRates
693 Disposal of the Gynaecology business Concept (Monetary) For Period Debit snn:TaxExpenseRelatingToGainLossOnSaleOfBusiness
694 Benefit of US Manufacturing deduction Concept (Monetary) For Period Credit snn:TaxBenefitArisingFromManufacturingDeduction
695 R&D credits Concept (Monetary) For Period Credit snn:TaxBenefitArisingResearchAndDevelopmentCredits
696 Tax losses not recognised Concept (Monetary) For Period Debit ifrs-full:TaxEffectOfTaxLosses
697 Utilisation of previously unrecognised tax losses Concept (Monetary) For Period Credit ifrs-full:TaxBenefitArisingFromPreviouslyUnrecognisedTaxLossTaxCreditOrTemporaryDifferenceOfPriorPeriodUsedToReduceCurrentTaxExpense
698 US tax reform Concept (Monetary) For Period Credit snn:TaxBenefitArisingFromUSTaxReform
699 Expenses not deductible for tax purposes Concept (Monetary) For Period Debit ifrs-full:TaxEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss
700 Change in tax rates Concept (Monetary) For Period Debit ifrs-full:TaxEffectFromChangeInTaxRate
701 Adjustments in respect of prior years Concept (Monetary) For Period Debit snn:AdjustmentsForCurrentAndDeferredTaxOfPriorPeriodNet
702 Total taxation as per the income statement Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
703 40503 - Disclosure - TAXATION - Deferred taxation (Details) Network

*

*

 http://www.smith-nephew.com/role/DisclosureTaxationDeferredTaxationDetails
704 Disclosure of temporary difference, unused tax losses and unused tax credits [table] Table

*

*

 ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable
705 Temporary difference, unused tax losses and unused tax credits [axis] Axis ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis
706 Temporary difference, unused tax losses and unused tax credits [member] Member ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsMember
707 Accelerated tax depreciation Member snn:AcceleratedTaxDepreciationMember
708 Intangibles Member snn:IntangiblesMember
709 Retirement benefit obligation Member snn:RetirementBenefitObligationMember
710 Macrotexture Member snn:MacrotextureMember
711 Inventory, provisions and other differences Member snn:InventoryProvisionsAndOtherDifferencesMember
712 Trading tax losses Member snn:TradingTaxLossesMember
713 Non-trading tax losses Member snn:NonTradingTaxLossesMember
714 Unused tax losses Member ifrs-full:UnusedTaxLossesMember
715 Range [axis] Axis ifrs-full:RangeAxis
716 Ranges [member] Member ifrs-full:RangesMember
717 Minimium Member ifrs-full:BottomOfRangeMember
718 Maximum Member ifrs-full:TopOfRangeMember
719 Restatement [Axis] Axis srt:RestatementAxis
720 Restatement [Domain] Member srt:RestatementDomain
721 Previously Reported Member snn:IfrsScenarioPreviouslyReportedMember
722 Restatement Adjustment Member srt:RestatementAdjustmentMember
723 Disclosure of temporary difference, unused tax losses and unused tax credits [line items] LineItems ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems
724 Movements in the main components of deferred tax assets and liabilities Abstract ifrs-full:ReconciliationOfChangesInDeferredTaxLiabilityAssetAbstract
725 Balance at the beginning of the period Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilityAsset
726 Exchange adjustment Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesDeferredTaxLiabilityAsset
727 Movement in income statement – current year Concept (Monetary) For Period ifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss
728 Movement in income statement – prior years Concept (Monetary) For Period Credit snn:DeferredTaxExpenseIncomeOfPriorPeriodsRecognisedInProfitOrLoss
729 Movement in other comprehensive income Concept (Monetary) For Period ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome
730 Movement in equity Concept (Monetary) For Period ifrs-full:DeferredTaxRelatingToItemsChargedOrCreditedDirectlyToEquity
731 Changes in tax rate Concept (Monetary) For Period Credit snn:IncreaseDecreaseFromChangesInTaxRatesDeferredTaxLiabilityAsset
732 Acquisitions Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughBusinessCombinationsDeferredTaxLiabilityAsset
733 Balance at the end of the period Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilityAsset
734 Represented by: Abstract ifrs-full:NetDeferredTaxAssetsAndLiabilitiesAbstract
735 Deferred tax assets Concept (Monetary) As Of Debit ifrs-full:DeferredTaxAssets
736 Deferred tax liabilities Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilities
737 Net asset position Concept (Monetary) As Of Debit ifrs-full:NetDeferredTaxAssets
738 Unused gross trading tax losses Concept (Monetary) As Of Debit snn:UnusedTradingTaxLosses
739 Gross unused capital losses Concept (Monetary) As Of Debit snn:UnusedCapitalLosses
740 Unused gross trading tax losses that expire Concept (Monetary) As Of Debit snn:UnusedGrossTradingTaxLossesThatExpire
741 Expiration period for unused trading tax losses Concept (xbrli:durationItemType) For Period snn:ExpirationPeriodForUnusedTradingTaxLosses
742 Trading and non-trading tax losses resulting in deferred tax assets Concept (Monetary) As Of Debit snn:TradingAndNonTradingTaxLossesResultingInDeferredTaxAssets
743 Temporary differences in respect of investments in subsidiaries and associates Concept (Monetary) As Of ifrs-full:TemporaryDifferencesAssociatedWithInvestmentsInSubsidiariesBranchesAndAssociatesAndInterestsInJointVentures
744 40601 - Disclosure - EARNINGS PER ORDINARY SHARE - Calculation of basic, diluted and adjusted earnings per share (Details) Network

*

*

 http://www.smith-nephew.com/role/DisclosureEarningsPerOrdinaryShareCalculationOfBasicDilutedAndAdjustedEarningsPerShareDetails
745 Earnings per share [table] Table

*

*

 ifrs-full:EarningsPerShareTable
746 Classes of other provisions [axis] Axis ifrs-full:ClassesOfProvisionsAxis
747 Other provisions [member] Member ifrs-full:OtherProvisionsMember
748 Metal-on-metal Member snn:MetalOnMetalHipClaimsProvisionMember
749 Associates [axis] Axis ifrs-full:SignificantInvestmentsInAssociatesAxis
750 Entity's total for associates [member] Member ifrs-full:EntitysTotalForAssociatesMember
751 Bioventus Member snn:BioventusLlcMember
752 Earnings per share [line items] LineItems ifrs-full:EarningsPerShareLineItems
753 Earnings Abstract ifrs-full:ProfitLossAttributableToOrdinaryEquityHoldersOfParentEntityAbstract
754 Attributable profit for the year Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
755 Adjusted attributable profit (see below) Concept (Monetary) For Period Credit snn:AdjustedProfitLoss
756 Attributable profit is reconciled to adjusted attributable profit as follows: Abstract snn:AttributableProfitReconciledToAdjustedAttributableProfitAbstract
757 Attributable profit for the year Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
758 Acquisition-related costs Concept (Monetary) For Period Debit snn:AcquisitionRelatedCostsRecognisedAsExpenseIncomeForAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombination
759 Restructuring and rationalisation expenses Concept (Monetary) For Period Debit ifrs-full:ExpenseOfRestructuringActivities
760 Amortisation and impairment of acquisition intangibles Concept (Monetary) For Period Debit snn:AmortisationAndImpairmentOfAcquisitionIntangiblesIncludingShareOfAssociates
761 Legal and other Concept (Monetary) For Period Debit snn:LegalAndOtherExpensesOutsideTradingAdjusted
762 Profit on disposal of business Concept (Monetary) For Period Credit snn:GainsLossesOnDisposalOfBusiness
763 US tax reform Concept (Monetary) For Period Credit snn:TaxBenefitArisingFromUSTaxReform
764 Taxation on excluded items Concept (Monetary) For Period Debit snn:TaxationOnExcludedItems
765 Amortisation and impairment of acquisition intangibles charges Concept (Monetary) For Period Debit snn:AmortisationAndImpairmentOfAcquisitionIntangiblesOutsideTrading
766 Adjusted attributable profit (see below) Concept (Monetary) For Period Credit snn:AdjustedProfitLoss
767 Legal and other charges Concept (Monetary) For Period Debit snn:LegalAndOtherExpense
768 Unwinding of discount Concept (Monetary) For Period Debit ifrs-full:ExpenseDueToUnwindingOfDiscountOnProvisions
769 Expense within share of associates Concept (Monetary) For Period Debit snn:AdjustmentWithinAssociatesExpensesIncurred
770 Legal and other charges Concept (Monetary) For Period Debit snn:LegalAndOtherExpenseOutsideTrading
771 40602 - Disclosure - EARNINGS PER ORDINARY SHARE - Earnings per ordinary share (Details) Network

*

*

 http://www.smith-nephew.com/role/DisclosureEarningsPerOrdinaryShareEarningsPerOrdinaryShareDetails
772 Implied Table Table

*

*

 implied:Table
773 Earnings per share [abstract] Abstract ifrs-full:EarningsPerShareAbstract
774 Basic weighted number of shares Concept (Shares) For Period ifrs-full:WeightedAverageShares
775 Dilutive impact of share options outstanding Concept (Shares) For Period ifrs-full:DilutiveEffectOfShareOptionsOnNumberOfOrdinaryShares
776 Diluted weighted average number of shares Concept (Shares) For Period ifrs-full:AdjustedWeightedAverageShares
777 Earnings per ordinary share Abstract snn:IfrsEarningsPerShareBasicAndDilutedAbstract
778 Basic Concept (Share) For Period ifrs-full:BasicEarningsLossPerShare
779 Diluted Concept (Share) For Period ifrs-full:DilutedEarningsLossPerShare
780 Adjusted Concept (Share) For Period snn:AdjustedEarningsLossPerShare
781 40701 - Disclosure - PROPERTY, PLANT AND EQUIPMENT (Details) Network

*

*

 http://www.smith-nephew.com/role/DisclosurePropertyPlantAndEquipmentDetails
782 Disclosure of detailed information about property, plant and equipment [table] Table

*

*

 ifrs-full:DisclosureOfPropertyPlantAndEquipmentTable
783 Classes of property, plant and equipment [axis] Axis ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
784 Property, plant and equipment [member] Member ifrs-full:PropertyPlantAndEquipmentMember
785 Land and buildings Member ifrs-full:LandAndBuildingsMember
786 Land Member ifrs-full:LandMember
787 Buildings Member ifrs-full:BuildingsMember
788 Leasehold Member ifrs-full:LeaseholdImprovementsMember
789 Instruments Member snn:InstrumentsMember
790 Other Member ifrs-full:OtherPropertyPlantAndEquipmentMember
791 Assets in course of construction Member ifrs-full:ConstructionInProgressMember
792 Assets under finance leases Member snn:AssetsUnderFinanceLeasesMember
793 Property, plant and equipment by operating lease status [axis] Axis ifrs-full:PropertyPlantAndEquipmentByOperatingLeaseStatusAxis
794 Property, plant and equipment by operating lease status [member] Member ifrs-full:PropertyPlantAndEquipmentByOperatingLeaseStatusMember
795 Freehold Member ifrs-full:PropertyPlantAndEquipmentNotSubjectToOperatingLeasesMember
796 Leasehold Member ifrs-full:PropertyPlantAndEquipmentSubjectToOperatingLeasesMember
797 Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Axis ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis
798 Carrying amount [member] Member ifrs-full:CarryingAmountMember
799 Cost Member ifrs-full:GrossCarryingAmountMember
800 Amortisation and impairment Member ifrs-full:AccumulatedDepreciationAmortisationAndImpairmentMember
801 Range [axis] Axis ifrs-full:RangeAxis
802 Ranges [member] Member ifrs-full:RangesMember
803 Minimium Member ifrs-full:BottomOfRangeMember
804 Maximum Member ifrs-full:TopOfRangeMember
805 Disclosure of detailed information about property, plant and equipment [line items] LineItems ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems
806 Property, plant and equipment at beginning of period Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
807 Exchange adjustment Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment
808 Acquisitions – Property, plant and equipment Concept (Monetary) For Period Debit ifrs-full:AcquisitionsThroughBusinessCombinationsPropertyPlantAndEquipment
809 Additions Concept (Monetary) For Period Debit ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment
810 Charges Concept (Monetary) For Period ifrs-full:DepreciationPropertyPlantAndEquipment
811 Disposals Concept (Monetary) For Period Credit ifrs-full:DisposalsPropertyPlantAndEquipment
812 Impairment Concept (Monetary) For Period ifrs-full:ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment
813 Transfers Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughTransfersPropertyPlantAndEquipment
814 Property, plant and equipment at end of period Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
815 Reconciliation of changes in property, plant and equipment Abstract ifrs-full:ReconciliationOfChangesInPropertyPlantAndEquipmentAbstract
816 Useful Life Concept (xbrli:durationItemType) For Period snn:UsefulLife
817 Assets Concept (Monetary) As Of Debit ifrs-full:Assets
818 Software transferred from assets in course of construction Concept (Monetary) For Period Debit snn:SoftwareTransferredFromAssetsInCourseOfConstruction
819 Other non-current assets transferred from assets in course of construction Concept (Monetary) For Period Debit snn:OtherNonCurrentAssetsTransferredFromAssetsInCourseOfConstruction
820 Capital expenditures relating to property, plant and equipment contracted but not yet provided Concept (Monetary) For Period Debit snn:PurchaseOfPropertyPlantAndEquipmentContractedButNotProvided
821 40801 - Disclosure - GOODWILL (Details) Network

*

*

 http://www.smith-nephew.com/role/DisclosureGoodwillDetails
822 Disclosure of reconciliation of changes in goodwill [table] Table

*

*

 ifrs-full:DisclosureOfReconciliationOfChangesInGoodwillTable
823 Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Axis ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis
824 Carrying amount [member] Member ifrs-full:CarryingAmountMember
825 Cost Member ifrs-full:GrossCarryingAmountMember
826 Individual assets or cash-generating units [axis] Axis ifrs-full:IndividualAssetsOrCashgeneratingUnitsAxis
827 Entity's total for individual assets or cash-generating units [member] Member ifrs-full:EntitysTotalForIndividualAssetsOrCashgeneratingUnitsMember
828 Reconstruction Member snn:ReconstructionCguMember
829 Orthopaedics Member snn:OrthopaedicsMember
830 Other Surgical Devices Member snn:OtherSurgicalDevicesCguMember
831 Advanced Wound Management Member snn:AdvancedWoundManagementCguMember
832 Range [axis] Axis ifrs-full:RangeAxis
833 Ranges [member] Member ifrs-full:RangesMember
834 Minimium Member ifrs-full:BottomOfRangeMember
835 Maximum Member ifrs-full:TopOfRangeMember
836 Weighted average Member ifrs-full:WeightedAverageMember
837 Disclosure of reconciliation of changes in goodwill [line items] LineItems ifrs-full:DisclosureOfReconciliationOfChangesInGoodwillLineItems
838 Goodwill, beginning balance Concept (Monetary) As Of Debit ifrs-full:Goodwill
839 Exchange adjustment Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesGoodwill
840 Acquisitions Concept (Monetary) For Period Debit ifrs-full:AdditionalRecognitionGoodwill
841 Goodwill, ending balance Concept (Monetary) As Of Debit ifrs-full:Goodwill
842 Number of Cash Generating Units Concept (Integer) As Of snn:NumberOfCashGeneratingUnits
843 Revenue growth rates Concept (Percent) As Of ifrs-full:DescriptionOfGrowthRateUsedToExtrapolateCashFlowProjections
844 Pre-tax discount rate Concept (Percent) As Of ifrs-full:DescriptionOfDiscountRatesAppliedToCashFlowProjections
845 Increase in discount rates Concept (Percent) As Of snn:DescriptionOfIncreaseInDiscountRatesAppliedToCashFlowProjections
846 40901 - Disclosure - INTANGIBLE ASSETS (Details) Network

*

*

 http://www.smith-nephew.com/role/DisclosureIntangibleAssetsDetails
847 Disclosure of detailed information about intangible assets [table] Table

*

*

 ifrs-full:DisclosureOfIntangibleAssetsTable
848 Classes of intangible assets other than goodwill [axis] Axis ifrs-full:ClassesOfIntangibleAssetsOtherThanGoodwillAxis
849 Intangible assets other than goodwill [member] Member ifrs-full:IntangibleAssetsOtherThanGoodwillMember
850 Technology Member ifrs-full:TechnologybasedIntangibleAssetsMember
851 Product- related Member snn:ProductRelatedIntangibleAssetsMember
852 Customer and distribution related Member ifrs-full:CustomerrelatedIntangibleAssetsMember
853 Software Member ifrs-full:ComputerSoftwareMember
854 Assets in course of construction Member ifrs-full:IntangibleAssetsUnderDevelopmentMember
855 Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Axis ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis
856 Carrying amount [member] Member ifrs-full:CarryingAmountMember
857 Cost Member ifrs-full:GrossCarryingAmountMember
858 Amortisation and impairment Member ifrs-full:AccumulatedDepreciationAmortisationAndImpairmentMember
859 Products and services [axis] Axis ifrs-full:ProductsAndServicesAxis
860 Products and services [member] Member ifrs-full:ProductsAndServicesMember
861 Oasis Member snn:Product1Member
862 Range [axis] Axis ifrs-full:RangeAxis
863 Ranges [member] Member ifrs-full:RangesMember
864 Minimium Member ifrs-full:BottomOfRangeMember
865 Maximum Member ifrs-full:TopOfRangeMember
866 Disclosure of detailed information about intangible assets [line items] LineItems ifrs-full:DisclosureOfIntangibleAssetsLineItems
867 Useful Life Concept (Text/String) For Period ifrs-full:UsefulLivesOrAmortisationRatesIntangibleAssetsOtherThanGoodwill
868 Carrying value, beginning balance Concept (Monetary) As Of Debit ifrs-full:IntangibleAssetsOtherThanGoodwill
869 Exchange adjustment Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsOtherThanGoodwill
870 Acquisitions Concept (Monetary) For Period Debit ifrs-full:AcquisitionsThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill
871 Additions Concept (Monetary) For Period Debit ifrs-full:AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill
872 Change for the year - amortisation Concept (Monetary) For Period ifrs-full:AmortisationIntangibleAssetsOtherThanGoodwill
873 Charge for the year – impairment Concept (Monetary) For Period ifrs-full:ImpairmentLossRecognisedInProfitOrLossIntangibleAssetsOtherThanGoodwill
874 Disposals Concept (Monetary) For Period Credit ifrs-full:DisposalsIntangibleAssetsOtherThanGoodwill
875 Transfers Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughTransfersIntangibleAssetsOtherThanGoodwill
876 Carrying value, ending balance Concept (Monetary) As Of Debit ifrs-full:IntangibleAssetsOtherThanGoodwill
877 Amortisation and impairment of acquired intangibles Concept (Monetary) For Period Debit ifrs-full:DepreciationAmortisationAndImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss
878 Impairment charges Concept (Monetary) For Period Debit ifrs-full:ImpairmentLoss
879 Pre-tax discount rate Concept (Percent) As Of ifrs-full:DescriptionOfDiscountRatesAppliedToCashFlowProjections
880 41001 - Disclosure - INVESTMENTS (Details) Network

*

*

 http://www.smith-nephew.com/role/DisclosureInvestmentsDetails
881 Disclosure of detailed information about financial instruments [table] Table

*

*

 ifrs-full:DisclosureOfFinancialInstrumentsTable
882 Categories of financial assets [axis] Axis ifrs-full:CategoriesOfFinancialAssetsAxis
883 Financial assets, category [member] Member ifrs-full:FinancialAssetsCategoryMember
884 Financial assets at fair value through profit or loss Member ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember
885 Disclosure of detailed information about financial instruments [line items] LineItems ifrs-full:DisclosureOfFinancialInstrumentsLineItems
886 Investments at 1 January Concept (Monetary) As Of Debit ifrs-full:NoncurrentFinancialAssetsAvailableforsale
887 Additions Concept (Monetary) For Period Debit snn:AdditionsToAvailableForSaleSecuritiesFairValue
888 Fair value remeasurement Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnRemeasuringAvailableforsaleFinancialAssetsBeforeTax
889 Impairment Concept (Monetary) For Period Debit ifrs-full:ImpairmentLossOnFinancialAssets
890 Investments at 31 December Concept (Monetary) As Of Debit ifrs-full:NoncurrentFinancialAssetsAvailableforsale
891 41101 - Disclosure - INVESTMENTS IN ASSOCIATES - Amounts recognised in the balance sheet and income statement (Details) Network

*

*

 http://www.smith-nephew.com/role/DisclosureInvestmentsInAssociatesAmountsRecognisedInBalanceSheetAndIncomeStatementDetails
892 Disclosure of associates [table] Table

*

*

 ifrs-full:DisclosureOfSignificantInvestmentsInAssociatesTable
893 Associates [axis] Axis ifrs-full:SignificantInvestmentsInAssociatesAxis
894 Entity's total for associates [member] Member ifrs-full:EntitysTotalForAssociatesMember
895 Associates [member] Member ifrs-full:AssociatesMember
896 Bioventus Member snn:BioventusLlcMember
897 Disclosure of associates [line items] LineItems ifrs-full:DisclosureOfSignificantInvestmentsInAssociatesLineItems
898 Percentage of associate held Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestInAssociate
899 Trade investments Concept (Monetary) As Of Debit ifrs-full:InvestmentsInAssociatesAccountedForUsingEquityMethod
900 Income statement profit (loss) Concept (Monetary) For Period Credit ifrs-full:ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod
901 41102 - Disclosure - INVESTMENTS IN ASSOCIATES - Summarised statement of comprehensive income (Details) Network

*

*

 http://www.smith-nephew.com/role/DisclosureInvestmentsInAssociatesSummarisedStatementOfComprehensiveIncomeDetails
902 Disclosure of associates [table] Table

*

*

 ifrs-full:DisclosureOfSignificantInvestmentsInAssociatesTable
903 Associates [axis] Axis ifrs-full:SignificantInvestmentsInAssociatesAxis
904 Entity's total for associates [member] Member ifrs-full:EntitysTotalForAssociatesMember
905 Associates [member] Member ifrs-full:AssociatesMember
906 Bioventus Member snn:BioventusLlcMember
907 Disclosure of associates [line items] LineItems ifrs-full:DisclosureOfSignificantInvestmentsInAssociatesLineItems
908 Summarised statement of comprehensive income Abstract ifrs-full:ProfitLossAbstract
909 Revenue Concept (Monetary) For Period Credit ifrs-full:RevenueFromContractsWithCustomers
910 Attributable profit for the year Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
911 Group adjustments Concept (Monetary) For Period Credit snn:AdjustmentsToProfitLossOfAssociatesAccountedForUsingEquityMethod
912 Total comprehensive income for the year Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncome
913 Income statement profit (loss) Concept (Monetary) For Period Credit ifrs-full:ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod
914 Percentage of associate held Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestInAssociate
915 41103 - Disclosure - INVESTMENTS IN ASSOCIATES - Summarised balance sheet (Details) Network

*

*

 http://www.smith-nephew.com/role/DisclosureInvestmentsInAssociatesSummarisedBalanceSheetDetails
916 Disclosure of associates [table] Table

*

*

 ifrs-full:DisclosureOfSignificantInvestmentsInAssociatesTable
917 Associates [axis] Axis ifrs-full:SignificantInvestmentsInAssociatesAxis
918 Entity's total for associates [member] Member ifrs-full:EntitysTotalForAssociatesMember
919 Associates [member] Member ifrs-full:AssociatesMember
920 Bioventus Member snn:BioventusLlcMember
921 Other associates Member ifrs-full:AggregatedIndividuallyImmaterialAssociatesMember
922 Disclosure of associates [line items] LineItems ifrs-full:DisclosureOfSignificantInvestmentsInAssociatesLineItems
923 Summarised balance sheet Abstract ifrs-full:StatementOfFinancialPositionAbstract
924 Non-current assets Concept (Monetary) As Of Debit ifrs-full:NoncurrentAssets
925 Current assets Concept (Monetary) As Of Debit ifrs-full:CurrentAssets
926 Non-current liabilities Concept (Monetary) As Of Credit ifrs-full:NoncurrentLiabilities
927 Current liabilities Concept (Monetary) As Of Credit ifrs-full:CurrentLiabilities
928 Net assets Concept (Monetary) As Of Debit ifrs-full:NetAssetsLiabilities
929 Group's share of net assets Concept (Monetary) As Of Debit snn:ShareOfAssetsOfAssociatesAndJointVenturesAccountedForUsingEquityMethod
930 Group adjustments Concept (Monetary) As Of Debit snn:CumulativeAdjustmentsToNetAssetsOfAssociatesAccountedForUsingEquityMethod
931 Group's carrying amount of investment Concept (Monetary) As Of Debit ifrs-full:InvestmentsInAssociatesAccountedForUsingEquityMethod
932 Percentage of associate held Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestInAssociate
933 Cash distribution received Concept (Monetary) For Period Debit ifrs-full:DividendsReceived
934 Number of associates Concept (Integer) As Of snn:NumberOfAssociates
935 41201 - Disclosure - INVENTORIES (Details) Network

*

*

 http://www.smith-nephew.com/role/DisclosureInventoriesDetails
936 Schedule Of Inventory Disclosure [Table] Table

*

*

 snn:ScheduleOfInventoryDisclosureTable
937 Classes of property, plant and equipment [axis] Axis ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
938 Property, plant and equipment [member] Member ifrs-full:PropertyPlantAndEquipmentMember
939 Orthopaedic instruments Member snn:OrthopaedicInstrumentsMember
940 Range [axis] Axis ifrs-full:RangeAxis
941 Ranges [member] Member ifrs-full:RangesMember
942 Minimium Member ifrs-full:BottomOfRangeMember
943 Maximum Member ifrs-full:TopOfRangeMember
944 Classes of other provisions [axis] Axis ifrs-full:ClassesOfProvisionsAxis
945 Other provisions [member] Member ifrs-full:OtherProvisionsMember
946 Reserves for excess and obsolete inventories Member snn:InventoryProvisionMember
947 Schedule Of Inventory Disclosure [Line Items] LineItems snn:ScheduleOfInventoryDisclosureLineItems
948 Useful economic life Concept (xbrli:durationItemType) For Period snn:UsefulLivesPropertyPlantAndEquipment
949 Period of time on the market when inventory adjustment formula is first applied Concept (xbrli:durationItemType) For Period snn:PeriodOfTimeOnMarketForInventoryAdjustmentFormula
950 Raw materials and consumables Concept (Monetary) As Of Debit ifrs-full:CurrentMaterialsAndSuppliesToBeConsumedInProductionProcessOrRenderingServices
951 Work-in-progress Concept (Monetary) As Of Debit ifrs-full:WorkInProgress
952 Finished goods and goods for resale Concept (Monetary) As Of Debit snn:CurrentFinishedGoodsAndInventoriesHeldForSale
953 Total inventories Concept (Monetary) As Of Debit ifrs-full:Inventories
954 Reserves Concept (Monetary) As Of Credit ifrs-full:OtherProvisions
955 Decrease in reserves Concept (Monetary) For Period Credit ifrs-full:ChangesInOtherProvisions
956 Write-off of inventory Concept (Monetary) For Period ifrs-full:InventoryWritedown2011
957 Foreign exchange movements Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesOtherProvisions
958 Cost of inventories recognised as an expense and included in cost of goods sold Concept (Monetary) For Period Debit ifrs-full:CostOfInventoriesRecognisedAsExpenseDuringPeriod
959 Inventories recognised as an expense within cost of goods sold resulting from inventory write-offs Concept (Monetary) For Period Debit snn:CostOfInventoriesResultingFromWriteOffs
960 41301 - Disclosure - TRADE AND OTHER RECEIVABLES (Details) Network

*

*

 http://www.smith-nephew.com/role/DisclosureTradeAndOtherReceivablesDetails
961 Implied Table Table

*

*

 implied:Table
962 TRADE AND OTHER RECEIVABLES. Abstract ifrs-full:TradeAndOtherCurrentReceivablesAbstract
963 Trade receivables Concept (Monetary) As Of Debit snn:TradeReceivablesGrossCurrent
964 Less: provision for bad and doubtful debts Concept (Monetary) As Of Credit snn:ProvisionForDoubtfulTradeReceivables
965 Trade receivables - net Concept (Monetary) As Of Debit ifrs-full:CurrentTradeReceivables
966 Derivatives - forward foreign exchange, currency swaps and interest rate contracts Concept (Monetary) As Of Debit ifrs-full:CurrentDerivativeFinancialAssets
967 Other receivables Concept (Monetary) As Of Debit ifrs-full:OtherCurrentReceivables
968 Prepayments Concept (Monetary) As Of Debit ifrs-full:CurrentPrepaymentsAndCurrentAccruedIncome
969 Total trade and other receivables, current Concept (Monetary) As Of Debit ifrs-full:TradeAndOtherCurrentReceivables
970 Other non-current assets Concept (Monetary) As Of Debit ifrs-full:OtherNoncurrentReceivables
971 Total trade and other receivables Concept (Monetary) As Of Debit ifrs-full:TradeAndOtherReceivables
972 41302 - Disclosure - TRADE AND OTHER RECEIVABLES - Trade receivables past due (Details) Network

*

*

 http://www.smith-nephew.com/role/DisclosureTradeAndOtherReceivablesTradeReceivablesPastDueDetails
973 Disclosure Of Trade And Other Receivables [Table] Table

*

*

 snn:DisclosureOfTradeAndOtherReceivablesTable
974 Past due status [axis] Axis ifrs-full:PastDueStatusAxis
975 Past due status [member] Member ifrs-full:PastDueStatusMember
976 Total past due Member snn:LaterThanOneMonthMember
977 Past due not more than three months Member ifrs-full:LaterThanOneMonthAndNotLaterThanThreeMonthsMember
978 Past due more than three months and not more than six months Member ifrs-full:LaterThanThreeMonthsAndNotLaterThanSixMonthsMember
979 Past due more than six months and not more than one year Member ifrs-full:LaterThanSixMonthsAndNotLaterThanOneYearMember
980 Neither past due nor impaired Member ifrs-full:CurrentMember
981 Disclosure Of Trade And Other Receivables [Line Items] LineItems snn:DisclosureOfTradeAndOtherReceivablesLineItems
982 Bad debt expense Concept (Monetary) For Period Debit ifrs-full:ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossTradeReceivables
983 Other receivables Concept (Monetary) As Of Debit ifrs-full:OtherCurrentReceivables
984 Trade receivables Concept (Monetary) As Of Debit snn:TradeReceivablesGrossCurrent
985 Less: provision for bad and doubtful debts Concept (Monetary) As Of Credit snn:ProvisionForDoubtfulTradeReceivables
986 Trade receivables - net Concept (Monetary) As Of Debit ifrs-full:CurrentTradeReceivables
987 Weighted average loss rate Concept (Percent) For Period snn:WeigthedAverageLossRateAsPercentReceivables
988 41303 - Disclosure - TRADE AND OTHER RECEIVABLES - Movements in the provision for bad and doubtful debts (Details) Network

*

*

 http://www.smith-nephew.com/role/DisclosureTradeAndOtherReceivablesMovementsInProvisionForBadAndDoubtfulDebtsDetails
989 Disclosure Of Trade And Other Receivables [Table] Table

*

*

 snn:DisclosureOfTradeAndOtherReceivablesTable
990 New IFRSs [axis] Axis ifrs-full:NewIFRSsAxis
991 New IFRSs [member] Member ifrs-full:NewIFRSsMember
992 IFRS 9 Member ifrs-full:InAccordanceWithIFRS9Member
993 Retrospective application and retrospective restatement [axis] Axis ifrs-full:RetrospectiveApplicationAndRetrospectiveRestatementAxis
994 Currently stated [member] Member ifrs-full:RestatedMember
995 Adoption of IFRS 9 Member snn:IncreaseDecreaseDueToApplicationOfIfrs9Member
996 Disclosure Of Trade And Other Receivables [Line Items] LineItems snn:DisclosureOfTradeAndOtherReceivablesLineItems
997 At 1 January Concept (Monetary) As Of Credit snn:ProvisionForDoubtfulTradeReceivables
998 Exchange adjustment Concept (Monetary) For Period Credit snn:IncreaseDecreaseInProvisionForDoubtfulAccountsForCurrencyTranslation
999 Reclassification Concept (Monetary) For Period Credit snn:IncreaseDecreaseInProvisionForDoubtfulAccountsForReclassifications
1000 Acquisitions Concept (Monetary) For Period Debit snn:TradeReceivablesBusinessAcquisition
1001 Net receivables provided/(provision released) during the year Concept (Monetary) For Period Debit ifrs-full:ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossTradeReceivables
1002 Utilisation of provision Concept (Monetary) For Period Debit snn:WriteOffOfTradeReceivables
1003 At 31 December Concept (Monetary) As Of Credit snn:ProvisionForDoubtfulTradeReceivables
1004 41304 - Disclosure - TRADE AND OTHER RECEIVABLES - Trade receivables denominated in major currencies (Details) Network

*

*

 http://www.smith-nephew.com/role/DisclosureTradeAndOtherReceivablesTradeReceivablesDenominatedInMajorCurrenciesDetails
1005 Disclosure Of Trade And Other Receivables [Table] Table

*

*

 snn:DisclosureOfTradeAndOtherReceivablesTable
1006 Currency [Axis] Axis srt:CurrencyAxis
1007 All Currencies [Domain] Member currency:AllCurrenciesDomain
1008 US Dollar Member currency:USD
1009 Sterling Member currency:GBP
1010 Euro Member currency:EUR
1011 Other Member snn:OtherCurrencyMember
1012 Disclosure Of Trade And Other Receivables [Line Items] LineItems snn:DisclosureOfTradeAndOtherReceivablesLineItems
1013 Trade receivables - net Concept (Monetary) As Of Debit ifrs-full:CurrentTradeReceivables
1014 41401 - Disclosure - TRADE AND OTHER PAYABLES (Details) Network

*

*

 http://www.smith-nephew.com/role/DisclosureTradeAndOtherPayablesDetails
1015 Disclosure Of Trade And Other Payables [Table] Table

*

*

 snn:DisclosureOfTradeAndOtherPayablesTable
1016 Maturity [axis] Axis ifrs-full:MaturityAxis
1017 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
1018 In two years Member snn:PayableInTwoYearsMember
1019 In three years Member snn:PayableInThreeYearsMember
1020 In four years Member snn:PayableInFourYearsMember
1021 In five years Member snn:PayableInFiveYearsMember
1022 After five years Member ifrs-full:LaterThanFiveYearsMember
1023 Disclosure Of Trade And Other Payables [Line Items] LineItems snn:DisclosureOfTradeAndOtherPayablesLineItems
1024 Trade and other payables due within one year Abstract ifrs-full:TradeAndOtherCurrentPayablesAbstract
1025 Trade and other payables Concept (Monetary) As Of Credit snn:TradeAndOtherPayablesCurrentExcludingDerivativesAndAcquisitionConsideration
1026 Derivatives - forward foreign exchange, currency and interest swaps Concept (Monetary) As Of Credit ifrs-full:CurrentDerivativeFinancialLiabilities
1027 Acquisition consideration Concept (Monetary) As Of Credit snn:BusinessCombinationsCurrentPayables
1028 Total trade and other current payables Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherCurrentPayables
1029 Other payables due after one year Abstract ifrs-full:NoncurrentPayablesAbstract
1030 Acquisition consideration Concept (Monetary) As Of Credit snn:BusinessCombinationsNoncurrentPayables
1031 Other payables Concept (Monetary) As Of Credit snn:OtherNoncurrentPayablesExcludingBusinessCombinationPayables
1032 Total other payables due after one year Concept (Monetary) As Of Credit ifrs-full:OtherNoncurrentPayables
1033 Contingent consideration Concept (Monetary) As Of Debit ifrs-full:ContingentConsiderationArrangementsAndIndemnificationAssetsRecognisedAsOfAcquisitionDate
1034 41501 - Disclosure - CASH AND BORROWINGS - Net debt (Details) Network

*

*

 http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsNetDebtDetails
1035 Disclosure of detailed information about borrowings [table] Table

*

*

 ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsTable
1036 Classes of financial assets [axis] Axis ifrs-full:ClassesOfFinancialAssetsAxis
1037 Financial assets, class [member] Member ifrs-full:FinancialAssetsMember
1038 Currency swaps Member ifrs-full:CurrencySwapContractMember
1039 Interest swaps Member ifrs-full:InterestRateSwapContractMember
1040 Disclosure of detailed information about borrowings [line items] LineItems ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems
1041 Bank overdrafts and loans due within one year Concept (Monetary) As Of Credit ifrs-full:ShorttermBorrowings
1042 Long-term bank borrowings Concept (Monetary) As Of Credit snn:LongTermBankBorrowings
1043 Private placement notes Concept (Monetary) As Of Credit snn:PrivatePlacementNotes
1044 Borrowings Concept (Monetary) As Of Credit ifrs-full:Borrowings
1045 Cash at bank Concept (Monetary) As Of Debit ifrs-full:BalancesWithBanks
1046 Balance on derivativies Concept (Monetary) As Of Debit ifrs-full:DerivativeFinancialAssets
1047 Net debt Concept (Monetary) As Of Credit ifrs-full:NetDebt
1048 41502 - Disclosure - CASH AND BORROWINGS - Borrowings are repayable (Details) Network

*

*

 http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsBorrowingsAreRepayableDetails
1049 Disclosure of detailed information about borrowings [table] Table

*

*

 ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsTable
1050 Maturity [axis] Axis ifrs-full:MaturityAxis
1051 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
1052 Within one year or on demand Member ifrs-full:NotLaterThanOneYearMember
1053 Between one and two years Member ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember
1054 Between two and three years Member ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember
1055 Between three and four years Member ifrs-full:LaterThanThreeYearsAndNotLaterThanFourYearsMember
1056 Between four and five years Member ifrs-full:LaterThanFourYearsAndNotLaterThanFiveYearsMember
1057 After five years Member ifrs-full:LaterThanFiveYearsMember
1058 Disclosure of detailed information about borrowings [line items] LineItems ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems
1059 Bank loans Concept (Monetary) As Of Credit ifrs-full:LoansReceived
1060 Bank overdrafts Concept (Monetary) As Of Credit ifrs-full:BankOverdraftsClassifiedAsCashEquivalents
1061 Private Placement Notes Concept (Monetary) As Of Credit snn:PrivatePlacementNotes
1062 Total borrowings Concept (Monetary) As Of Credit ifrs-full:Borrowings
1063 41504 - Disclosure - CASH AND BORROWINGS - Liquidity risk exposures (Details) Network

*

*

 http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsLiquidityRiskExposuresDetails
1064 Disclosure of detailed information about borrowings [table] Table

*

*

 ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsTable
1065 Borrowings by name [axis] Axis ifrs-full:BorrowingsByNameAxis
1066 Borrowings by name [member] Member ifrs-full:BorrowingsByNameMember
1067 Commited facilities Member snn:CommitedFacilitiesMember
1068 $265 million bilateral, term loan facility Member snn:BilateralTermLoanFacilityMember
1069 $80 million 2.47% Senior Notes Member snn:SeniorNotesMaturingNovember2019Member
1070 $45 million Floating Rate Senior Notes Member snn:FloatingRateSeniorNotesMaturingNovember2019Member
1071 $75 million 3.23% Senior Notes Member snn:SeniorNotesMaturingJanuary2021Member
1072 $1.0 billion syndicated, revolving credit facility Member snn:SyndicatedRevolvingCreditFacilityMember
1073 $190 million 2.97% Senior Notes Member snn:SeniorNotesMaturingNovember2021Member
1074 $75 million 3.46% Senior Notes Member snn:SeniorNotesMaturingJanuary2022Member
1075 $50 million 3.15% Senior Notes Member snn:SeniorNotesMaturingNovember2022Member
1076 $105 million 3.26% Senior Notes Member snn:SeniorNotesMaturingNovember2023Member
1077 $100 million 3.89% Senior Notes Member snn:SeniorNotesMaturingJanuary2024Member
1078 $305 million 3.36% Senior Notes Member snn:SeniorNotesMaturingNovember2024Member
1079 $25 million Floating Rate Senior Notes Member snn:FloatingRateSeniorNotesMaturingNovember2024Member
1080 $75 million 3.99% Senior Notes Member snn:SeniorNotesMaturingJanuary2026Member
1081 Disclosure of detailed information about borrowings [line items] LineItems ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems
1082 Committed facilities Concept (Monetary) As Of Credit snn:IfrsLineOfCreditFacilityMaximumBorrowingCapacity
1083 Amount contracted Concept (Monetary) As Of ifrs-full:NotionalAmount
1084 Interest rate Concept (Percent) As Of ifrs-full:BorrowingsInterestRate
1085 41505 - Disclosure - CASH AND BORROWINGS - Year end financial liabilities by contractual maturity (Details) Network

*

*

 http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsYearEndFinancialLiabilitiesByContractualMaturityDetails
1086 Disclosure of detailed information about borrowings [table] Table

*

*

 ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsTable
1087 Maturity [axis] Axis ifrs-full:MaturityAxis
1088 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
1089 Within one year or on demand Member ifrs-full:NotLaterThanOneYearMember
1090 Between one and two years Member ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember
1091 Between two and five years Member ifrs-full:LaterThanTwoYearsAndNotLaterThanFiveYearsMember
1092 After five years Member ifrs-full:LaterThanFiveYearsMember
1093 Disclosure of detailed information about borrowings [line items] LineItems ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems
1094 Bank overdrafts and loans Concept (Monetary) As Of Credit ifrs-full:BankBorrowingsUndiscountedCashFlows
1095 Trade and other payables Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherPayablesUndiscountedCashFlows
1096 Private placement notes Concept (Monetary) As Of Credit snn:PrivatePlacementNotesUndiscountedCashFlows
1097 Acquisition consideration Concept (Monetary) As Of Credit snn:AcquisitionConsiderationDiscountedCashFlows
1098 Current swaps/forward foreign exchange contracts - outflow Concept (Monetary) As Of Credit snn:DerivativeFinancialLiabilitiesUndiscountedCashOutflows
1099 Current swaps/forward foreign exchange contracts - inflow Concept (Monetary) As Of Debit snn:DerivativeFinancialLiabilitiesUndiscountedCashInflows
1100 Total Concept (Monetary) As Of Credit snn:FinancialLiabilitiesUndiscountedCashFlows
1101 41507 - Disclosure - CASH AND BORROWINGS - Liquidity and capital resources (Details) Network

*

*

 http://www.smith-nephew.com/role/DisclosureCashAndBorrowingsLiquidityAndCapitalResourcesDetails
1102 Disclosure of detailed information about borrowings [table] Table

*

*

 ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsTable
1103 Borrowings by name [axis] Axis ifrs-full:BorrowingsByNameAxis
1104 Borrowings by name [member] Member ifrs-full:BorrowingsByNameMember
1105 Commited facilities Member snn:CommitedFacilitiesMember
1106 Disclosure of detailed information about borrowings [line items] LineItems ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems
1107 Cash net of bank overdrafts Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
1108 Committed facilities Concept (Monetary) As Of Credit snn:IfrsLineOfCreditFacilityMaximumBorrowingCapacity
1109 Amount drawn Concept (Monetary) As Of Credit snn:IfrsLineOfCredit
1110 Amount contracted Concept (Monetary) As Of ifrs-full:NotionalAmount
1111 Net debt Concept (Monetary) As Of Credit ifrs-full:NetDebt
1112 Increase (decrease) in net debt Concept (Monetary) For Period Credit snn:IncreaseDecreaseInNetDebt
1113 41601 - Disclosure - FINANCIAL INSTRUMENTS AND RISK MANAGEMENT - Foreign Exchange Exposures (Details) Network

*

*

 http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementForeignExchangeExposuresDetails
1114 Disclosure of risk management strategy related to hedge accounting [table] Table

*

*

 ifrs-full:DisclosureOfRiskManagementStrategyRelatedToHedgeAccountingTable
1115 Classes of financial instruments [axis] Axis ifrs-full:ClassesOfFinancialInstrumentsAxis
1116 Financial instruments, class [member] Member ifrs-full:ClassesOfFinancialInstrumentsMember
1117 Forward foreign exhange contracts Member ifrs-full:ForwardContractMember
1118 Types of risks [axis] Axis ifrs-full:TypesOfRisksAxis
1119 Risks [member] Member ifrs-full:TypesOfRisksMember
1120 Currency risk Member ifrs-full:CurrencyRiskMember
1121 Currency [Axis] Axis srt:CurrencyAxis
1122 All Currencies [Domain] Member currency:AllCurrenciesDomain
1123 US Dollar Member currency:USD
1124 Euro Member currency:EUR
1125 Borrowings by name [axis] Axis ifrs-full:BorrowingsByNameAxis
1126 Borrowings by name [member] Member ifrs-full:BorrowingsByNameMember
1127 $265 million bilateral, term loan facility Member snn:BilateralTermLoanFacilityMember
1128 Risk management LineItems ifrs-full:DisclosureOfRiskManagementStrategyRelatedToHedgeAccountingLineItems
1129 Number of countries in which the company operates Concept (Integer) As Of snn:NumberOfCountriesCompanyOperatesIn
1130 Period of time of hedge contracts (in years) Concept (xbrli:durationItemType) For Period snn:HedgeInstrumentTerm
1131 Percentage of exposure the hedge covers Concept (Percent) As Of snn:AmountOfExposureAsPercentage
1132 Cash flow term (in months) Concept (xbrli:durationItemType) For Period snn:PeriodOfTimeCashFlowsOccurForCashFlowHedges
1133 Profit or loss term (in months) Concept (xbrli:durationItemType) For Period snn:PeriodOfTimeProfitOrLossOnCashFlowHedgesWillBeDetermined
1134 Amount contracted Concept (Monetary) As Of ifrs-full:NotionalAmount
1135 Percentage of decrease in risk variable used for sensitivity analysis Concept (Percent) As Of snn:SensitivityAnalysisPercentageOfReasonablyPossibleDecreaseInRiskVariable
1136 Percentage of increase in risk variable used for sensitivity analysis Concept (Percent) As Of snn:SensitivityAnalysisPercentageOfReasonablyPossibleIncreaseInRiskVariable
1137 Decrease in net borrowings that would result from decreased currency value, per sensitivity analysis Concept (Monetary) As Of Credit snn:IncreaseDecreaseInNetBorrowingsDueToReasonablyPossibleDecreaseInRiskVariable
1138 Increase (decrease) in fair value that would result from decreased currency value, per sensitivity analysis Concept (Monetary) For Period Debit snn:IncreaseDecreaseInFairValueDueToReasonablyPossibleDecreaseInRiskVariable
1139 Notional amount Concept (Monetary) As Of ifrs-full:NotionalAmount
1140 41602 - Disclosure - FINANCIAL INSTRUMENTS AND RISK MANAGEMENT - Interest Rate Exposures (Details) Network

*

*

 http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementInterestRateExposuresDetails
1141 Disclosure of risk management strategy related to hedge accounting [table] Table

*

*

 ifrs-full:DisclosureOfRiskManagementStrategyRelatedToHedgeAccountingTable
1142 Types of risks [axis] Axis ifrs-full:TypesOfRisksAxis
1143 Risks [member] Member ifrs-full:TypesOfRisksMember
1144 Interest rate risk Member ifrs-full:InterestRateRiskMember
1145 Risk management LineItems ifrs-full:DisclosureOfRiskManagementStrategyRelatedToHedgeAccountingLineItems
1146 Percentage of increase in risk variable used for sensitivity analysis Concept (Percent) As Of snn:SensitivityAnalysisPercentageOfReasonablyPossibleIncreaseInRiskVariable
1147 Percentage of decrease in risk variable used for sensitivity analysis Concept (Percent) As Of snn:SensitivityAnalysisPercentageOfReasonablyPossibleDecreaseInRiskVariable
1148 Increase in annual net interest charge that would result from increased interest rate, per sensitivity analysis Concept (Monetary) As Of Debit snn:IncreaseDecreaseInAnnualNetInterestChargeDueToReasonablyPossibleIncreaseInRiskVariable
1149 41603 - Disclosure - FINANCIAL INSTRUMENTS AND RISK MANAGEMENT - Hedge (Details) Network

*

*

 http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementHedgeDetails
1150 Disclosure of detailed information about hedging instruments [table] Table

*

*

 ifrs-full:DisclosureOfDetailedInformationAboutHedgingInstrumentsTable
1151 Classes of financial instruments [axis] Axis ifrs-full:ClassesOfFinancialInstrumentsAxis
1152 Financial instruments, class [member] Member ifrs-full:ClassesOfFinancialInstrumentsMember
1153 Forward foreign exhange contracts Member ifrs-full:ForwardContractMember
1154 Interest swaps Member ifrs-full:InterestRateSwapContractMember
1155 Types of risks [axis] Axis ifrs-full:TypesOfRisksAxis
1156 Risks [member] Member ifrs-full:TypesOfRisksMember
1157 Currency risk Member ifrs-full:CurrencyRiskMember
1158 Interest rate risk Member ifrs-full:InterestRateRiskMember
1159 Types of hedges [axis] Axis ifrs-full:TypesOfHedgesAxis
1160 Hedges [member] Member ifrs-full:TypesOfHedgesMember
1161 Cash flow hedges Member ifrs-full:CashFlowHedgesMember
1162 Items designated as hedging instruments LineItems ifrs-full:DisclosureOfDetailedInformationAboutHedgingInstrumentsLineItems
1163 Nominal amount Concept (Decimal) As Of ifrs-full:NominalAmountOfHedgingInstrument
1164 Carrying Amount Assets Concept (Monetary) As Of Debit ifrs-full:HedgingInstrumentAssets
1165 Carrying Amount Liabilities Concept (Monetary) As Of Credit ifrs-full:HedgingInstrumentLiabilities
1166 Change in fair value in OCI Concept (Monetary) For Period Credit snn:HedgingInstrumentChangesInFairValueInOtherComprehensiveIncome
1167 Amounts reclassified from hedging reserve to profit or loss Concept (Monetary) For Period Debit ifrs-full:ReclassificationAdjustmentsOnCashFlowHedgesForWhichHedgedItemAffectedProfitOrLossNetOfTax
1168 41604 - Disclosure - FINANCIAL INSTRUMENTS AND RISK MANAGEMENT - Credit Risk Exposures (Details) Network

*

*

 http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementCreditRiskExposuresDetails
1169 Disclosure of credit risk exposure [table] Table

*

*

 ifrs-full:DisclosureOfCreditRiskExposureTable
1170 Classes of financial assets [axis] Axis ifrs-full:ClassesOfFinancialAssetsAxis
1171 Financial assets, class [member] Member ifrs-full:FinancialAssetsMember
1172 Derivatives Member ifrs-full:DerivativesMember
1173 Cash at bank Member snn:FinancialAssetsCashMember
1174 Types of risks [axis] Axis ifrs-full:TypesOfRisksAxis
1175 Risks [member] Member ifrs-full:TypesOfRisksMember
1176 Credit risk Member ifrs-full:CreditRiskMember
1177 Credit risk LineItems ifrs-full:DisclosureOfCreditRiskExposureLineItems
1178 Maximum exposure Concept (Monetary) As Of ifrs-full:MaximumExposureToCreditRisk
1179 41605 - Disclosure - FINANCIAL INSTRUMENTS AND RISK MANAGEMENT - Interest Bearing Liabilities (Details) Network

*

*

 http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementInterestBearingLiabilitiesDetails
1180 Disclosure of financial liabilities [table] Table

*

*

 ifrs-full:DisclosureOfFinancialLiabilitiesTable
1181 Classes of financial liabilities [axis] Axis ifrs-full:ClassesOfFinancialLiabilitiesAxis
1182 Financial liabilities, class [member] Member ifrs-full:FinancialLiabilitiesMember
1183 Gross borrowings Member snn:FinancialLiabilitiesLongTermDebtMember
1184 Currency swaps Member ifrs-full:CurrencySwapContractMember
1185 Interest swaps Member ifrs-full:InterestRateSwapContractMember
1186 Total liabilities Member snn:FinancialLiabilitiesTotalMember
1187 Types of interest rates [axis] Axis ifrs-full:TypesOfInterestRatesAxis
1188 Interest rate types [member] Member ifrs-full:InterestRateTypesMember
1189 Floating rate Member ifrs-full:FloatingInterestRateMember
1190 Fixed rate Member ifrs-full:FixedInterestRateMember
1191 Currency [Axis] Axis srt:CurrencyAxis
1192 All Currencies [Domain] Member currency:AllCurrenciesDomain
1193 US Dollar Member currency:USD
1194 Other Member snn:OtherCurrencyMember
1195 Range [axis] Axis ifrs-full:RangeAxis
1196 Ranges [member] Member ifrs-full:RangesMember
1197 Weighted average Member ifrs-full:WeightedAverageMember
1198 Interest bearing liabilities LineItems ifrs-full:DisclosureOfFinancialLiabilitiesLineItems
1199 Financial liabilities Concept (Monetary) As Of Credit ifrs-full:FinancialLiabilities
1200 Interest rate Concept (Percent) As Of ifrs-full:BorrowingsInterestRate
1201 Time for which rate is fixed Concept (xbrli:durationItemType) For Period snn:InterestRateTerm
1202 Deferred acquisition consideration Concept (Monetary) As Of Credit ifrs-full:LiabilitiesIncurred
1203 Interest payable on deferred acquisition consideration Concept (Monetary) As Of Credit snn:InterestPayableOnAcquisitionConsideration
1204 41606 - Disclosure - FINANCIAL INSTRUMENTS AND RISK MANAGEMENT - Interest Bearing Assets (Details) Network

*

*

 http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementInterestBearingAssetsDetails
1205 Disclosure of financial assets [table] Table

*

*

 ifrs-full:DisclosureOfFinancialAssetsTable
1206 Classes of financial assets [axis] Axis ifrs-full:ClassesOfFinancialAssetsAxis
1207 Financial assets, class [member] Member ifrs-full:FinancialAssetsMember
1208 Cash at bank Member snn:FinancialAssetsCashMember
1209 Currency swaps Member ifrs-full:CurrencySwapContractMember
1210 Total assets Member snn:FinancialAssetsTotalMember
1211 Currency [Axis] Axis srt:CurrencyAxis
1212 All Currencies [Domain] Member currency:AllCurrenciesDomain
1213 US Dollar Member currency:USD
1214 Other Member snn:OtherCurrencyMember
1215 Types of interest rates [axis] Axis ifrs-full:TypesOfInterestRatesAxis
1216 Interest rate types [member] Member ifrs-full:InterestRateTypesMember
1217 Floating rate Member ifrs-full:FloatingInterestRateMember
1218 Interest bearing assets LineItems ifrs-full:DisclosureOfFinancialAssetsLineItems
1219 Financial assets Concept (Monetary) As Of Debit ifrs-full:FinancialAssets
1220 41607 - Disclosure - FINANCIAL INSTRUMENTS AND RISK MANAGEMENT - Fair Value (Details) Network

*

*

 http://www.smith-nephew.com/role/DisclosureFinancialInstrumentsAndRiskManagementFairValueDetails
1221 Disclosure of detailed information about financial instruments [table] Table

*

*

 ifrs-full:DisclosureOfFinancialInstrumentsTable
1222 Measurement [axis] Axis ifrs-full:MeasurementAxis
1223 Aggregated measurement [member] Member ifrs-full:AggregatedMeasurementMember
1224 At fair value Member ifrs-full:AtFairValueMember
1225 Not measured at fair value Member ifrs-full:NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember
1226 Levels of fair value hierarchy [axis] Axis ifrs-full:LevelsOfFairValueHierarchyAxis
1227 All levels of fair value hierarchy [member] Member ifrs-full:AllLevelsOfFairValueHierarchyMember
1228 Level 2 Member ifrs-full:Level2OfFairValueHierarchyMember
1229 Level 3 Member ifrs-full:Level3OfFairValueHierarchyMember
1230 Categories of financial assets [axis] Axis ifrs-full:CategoriesOfFinancialAssetsAxis
1231 Financial assets, category [member] Member ifrs-full:FinancialAssetsCategoryMember
1232 Designated at fair value Member snn:DesignatedAtFairValueMember
1233 Financial assets at fair value through profit or loss Member ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember
1234 Fair value through OCI Member ifrs-full:FinancialAssetsAtFairValueThroughOtherComprehensiveIncomeCategoryMember
1235 Available-for-sale Member ifrs-full:FinancialAssetsAvailableforsaleCategoryMember
1236 Categories of financial liabilities [axis] Axis ifrs-full:CategoriesOfFinancialLiabilitiesAxis
1237 Financial liabilities, category [member] Member ifrs-full:FinancialLiabilitiesCategoryMember
1238 Designated at fair value Member snn:DesignatedAtFairValueMember
1239 Loans and receivables Member ifrs-full:LoansAndReceivablesCategoryMember
1240 Other financial liabilities Member snn:OtherFinancialLiabilitiesMember
1241 Amortised cost Member ifrs-full:FinancialLiabilitiesAtAmortisedCostCategoryMember
1242 Classes of financial assets [axis] Axis ifrs-full:ClassesOfFinancialAssetsAxis
1243 Financial assets, class [member] Member ifrs-full:FinancialAssetsMember
1244 Forward foreign exhange contracts Member ifrs-full:ForwardContractMember
1245 Investments Member snn:FinancialAssetsInvestmentsMember
1246 Currency swaps Member ifrs-full:CurrencySwapContractMember
1247 Interest swaps Member ifrs-full:InterestRateSwapContractMember
1248 Trade receivables Member ifrs-full:TradeReceivablesMember
1249 Cash at bank Member snn:FinancialAssetsCashMember
1250 Classes of financial liabilities [axis] Axis ifrs-full:ClassesOfFinancialLiabilitiesAxis
1251 Financial liabilities, class [member] Member ifrs-full:FinancialLiabilitiesMember
1252 Acquisition consideration Member snn:AcquisitionConsiderationMember
1253 Forward foreign exhange contracts Member ifrs-full:ForwardContractMember
1254 Currency swaps Member ifrs-full:CurrencySwapContractMember
1255 Interest swaps Member ifrs-full:InterestRateSwapContractMember
1256 Bank overdrafts Member snn:BankOverdraftsLiabilitiesMember
1257 Bank loans Member snn:BankLoansMember
1258 Private placement debt in a hedge relationship Member snn:PrivatePlacementDebtInHedgeRelationshipMember
1259 Private placement debt Member snn:PrivatePlacementDebtMember
1260 Trade and other payables Member snn:TradeAndOtherPayablesMember
1261 Business combinations [axis] Axis ifrs-full:BusinessCombinationsAxis
1262 Entity's total for business combinations [member] Member ifrs-full:EntitysTotalForBusinessCombinationsMember
1263 Rotation Medical Inc Member snn:RotationMedicalMember
1264 Measurement of fair values LineItems ifrs-full:DisclosureOfFinancialInstrumentsLineItems
1265 Financial assets Concept (Monetary) As Of Debit ifrs-full:Assets
1266 Financial liabilities Concept (Monetary) As Of Credit ifrs-full:Liabilities
1267 Transfer from Level 1 to Level 2 assets Concept (Monetary) For Period ifrs-full:TransfersOutOfLevel1IntoLevel2OfFairValueHierarchyAssets
1268 Transfer from Level 2 to Level 1 assets Concept (Monetary) For Period ifrs-full:TransfersOutOfLevel2IntoLevel1OfFairValueHierarchyAssets
1269 Transfer into Level 3 assets Concept (Monetary) For Period Debit ifrs-full:TransfersIntoLevel3OfFairValueHierarchyAssets
1270 Transfer out of Level 3 assets Concept (Monetary) For Period Credit ifrs-full:TransfersOutOfLevel3OfFairValueHierarchyAssets
1271 Transfer from Level 1 to Level 2 liabilities Concept (Monetary) For Period ifrs-full:TransfersOutOfLevel1IntoLevel2OfFairValueHierarchyLiabilities
1272 Transfer from Level 2 to Level 1 liabilities Concept (Monetary) For Period ifrs-full:TransfersOutOfLevel2IntoLevel1OfFairValueHierarchyLiabilities
1273 Transfer into Level 3 liabilities Concept (Monetary) For Period Credit ifrs-full:TransfersIntoLevel3OfFairValueHierarchyLiabilities
1274 Transfer out of Level 3 liabilities Concept (Monetary) For Period Debit ifrs-full:TransfersOutOfLevel3OfFairValueHierarchyLiabilities
1275 Contingent consideration Concept (Monetary) As Of Debit ifrs-full:ContingentConsiderationArrangementsAndIndemnificationAssetsRecognisedAsOfAcquisitionDate
1276 Decrease in consideration Concept (Monetary) For Period Credit snn:IncreaseDecreaseAcquisitionConsideration
1277 Consideration paid Concept (Monetary) For Period Credit ifrs-full:ConsiderationPaidReceived
1278 Remeasurement reduction Concept (Monetary) For Period ifrs-full:MeasurementPeriodAdjustmentsRecognisedForParticularAssetsLiabilitiesNoncontrollingInterestsOrItemsOfConsideration
1279 41701 - Disclosure - PROVISIONS AND CONTINGENCIES - Changes in provisions (Details) Network

*

*

 http://www.smith-nephew.com/role/DisclosureProvisionsAndContingenciesChangesInProvisionsDetails
1280 Disclosure of other provisions [table] Table

*

*

 ifrs-full:DisclosureOfOtherProvisionsTable
1281 Classes of other provisions [axis] Axis ifrs-full:ClassesOfProvisionsAxis
1282 Other provisions [member] Member ifrs-full:OtherProvisionsMember
1283 Rationalisation provisions Member ifrs-full:RestructuringProvisionMember
1284 Metal-on-metal Member snn:MetalOnMetalHipClaimsProvisionMember
1285 Legal and other provisions Member ifrs-full:LegalProceedingsProvisionMember
1286 Disclosure of other provisions [line items] LineItems ifrs-full:DisclosureOfOtherProvisionsLineItems
1287 Changes in Provisions Abstract ifrs-full:ReconciliationOfChangesInOtherProvisionsAbstract
1288 Provisions at beginning of year Concept (Monetary) As Of Credit ifrs-full:Provisions
1289 Net charge to income statement Concept (Monetary) For Period Credit ifrs-full:AdditionalProvisionsOtherProvisions
1290 Unwinding of discount Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughTimeValueOfMoneyAdjustmentOtherProvisions
1291 Utilised Concept (Monetary) For Period Debit ifrs-full:ProvisionUsedOtherProvisions
1292 Transfers Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughTransfersAndOtherChangesOtherProvisions
1293 Exchange adjustment Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesOtherProvisions
1294 Provisions at end of year Concept (Monetary) As Of Credit ifrs-full:Provisions
1295 41702 - Disclosure - PROVISIONS AND CONTINGENCIES - Current and non-current provisions (Details) Network

*

*

 http://www.smith-nephew.com/role/DisclosureProvisionsAndContingenciesCurrentAndNonCurrentProvisionsDetails
1296 Disclosure of other provisions [table] Table

*

*

 ifrs-full:DisclosureOfOtherProvisionsTable
1297 Classes of other provisions [axis] Axis ifrs-full:ClassesOfProvisionsAxis
1298 Other provisions [member] Member ifrs-full:OtherProvisionsMember
1299 Rationalisation provisions Member ifrs-full:RestructuringProvisionMember
1300 Metal-on-metal Member snn:MetalOnMetalHipClaimsProvisionMember
1301 Legal and other provisions Member ifrs-full:LegalProceedingsProvisionMember
1302 Disclosure of other provisions [line items] LineItems ifrs-full:DisclosureOfOtherProvisionsLineItems
1303 Provisions - due within one year Concept (Monetary) As Of Credit ifrs-full:CurrentProvisions
1304 Provisions - due after one year Concept (Monetary) As Of Credit ifrs-full:NoncurrentProvisions
1305 Provisions at end of year Concept (Monetary) As Of Credit ifrs-full:Provisions
1306 Term of expected provision utilisation Concept (xbrli:durationItemType) For Period snn:TermOfExpectedProvisionUtilisation
1307 Minimum range of percentile Concept (Integer) For Period snn:MinimumRangeOfPercentileGeneratedByActuarialModel
1308 Maximum range of percentile Concept (Integer) For Period snn:MaximumRangeOfPercentileGeneratedByActuarialModel
1309 41703 - Disclosure - PROVISIONS AND CONTINGENCIES - Contingencies (Details) Network

*

*

 http://www.smith-nephew.com/role/DisclosureProvisionsAndContingenciesContingenciesDetails
1310 Disclosure of contingent liabilities [table] Table

*

*

 ifrs-full:DisclosureOfContingentLiabilitiesTable
1311 Counterparties [axis] Axis ifrs-full:CounterpartiesAxis
1312 Counterparties [member] Member ifrs-full:CounterpartiesMember
1313 Macrotextured Claim Insurers Member snn:MacrotexturedClaimInsurersMember
1314 Classes of contingent liabilities [axis] Axis ifrs-full:ClassesOfContingentLiabilitiesAxis
1315 Contingent liabilities [member] Member ifrs-full:ContingentLiabilitiesMember
1316 Macrotexture claims Member snn:MacrotextureClaimContingentLiabilityMember
1317 Disclosure of contingent liabilities [line items] LineItems ifrs-full:DisclosureOfContingentLiabilitiesLineItems
1318 Charge for anticipated expenses Concept (Monetary) For Period Debit snn:ExpensesReportedForContingentLiabilities
1319 Aggregate cost to-date Concept (Monetary) As Of Credit snn:CostsToDatePaidOnContingentLiabilityClaims
1320 Aggregate amount of insurance recoveries Concept (Monetary) As Of Debit snn:InsuranceRecoveriesToDateOnContingentLiabilityClaims
1321 Received from successful settlement Concept (Monetary) For Period Credit ifrs-full:GainsOnLitigationSettlements
1322 41704 - Disclosure - PROVISIONS AND CONTINGENCIES - Legal proceedings (Details) Network

*

*

 http://www.smith-nephew.com/role/DisclosureProvisionsAndContingenciesLegalProceedingsDetails
1323 Disclosure of other provisions [table] Table

*

*

 ifrs-full:DisclosureOfOtherProvisionsTable
1324 Counterparties [axis] Axis ifrs-full:CounterpartiesAxis
1325 Counterparties [member] Member ifrs-full:CounterpartiesMember
1326 Arthrex Member snn:ArthrexMember
1327 Confor Mis Member snn:ConforMisMember
1328 Hologic Member snn:HologicMember
1329 Classes of other provisions [axis] Axis ifrs-full:ClassesOfProvisionsAxis
1330 Other provisions [member] Member ifrs-full:OtherProvisionsMember
1331 Metal-on-metal Member snn:MetalOnMetalHipClaimsProvisionMember
1332 Disclosure of other provisions [line items] LineItems ifrs-full:DisclosureOfOtherProvisionsLineItems
1333 Number of claims pending Concept (Integer) As Of snn:NumberOfLitigationSettlementClaimsOutstanding
1334 Number of modular components Concept (Integer) As Of snn:NumberOfModularComponents
1335 Number of group settlements Concept (Integer) For Period snn:NumberOfGroupSettlementsDuringPeriod
1336 Net cash cost of settlements Concept (Monetary) For Period Credit snn:CashPaidToSettleLitigation
1337 Number of cases requested by plaintiffs to be transferred Concept (Integer) For Period snn:NumberOfLitigationCasesRequestedToBeTransferred
1338 Number of claims settled Concept (Integer) For Period snn:NumberOfClaimsSettled
1339 Defence cost Concept (Monetary) For Period Debit snn:DefenceCostRelatedToClaims
1340 Received from successful settlement Concept (Monetary) For Period Credit ifrs-full:GainsOnLitigationSettlements
1341 Number of subsidiaries decided to have infringed litigant's patents Concept (Integer) For Period snn:NumberOfSubsidiariesInfringingPatents
1342 Number of litigant's patents decided to be infringed Concept (Integer) For Period snn:NumberOfPatentsFoundToHaveBeenInfringed
1343 Amount awarded to litigant Concept (Monetary) For Period Debit ifrs-full:LossesOnLitigationSettlements
1344 Payment received as part of litigation Concept (Monetary) For Period Debit snn:LitigationSettlementPaymentReceived
1345 41801 - Disclosure - RETIREMENT BENEFIT OBLIGATIONS (Details) Network

*

*

 http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsDetails
1346 Disclosure of defined benefit plans [table] Table

*

*

 ifrs-full:DisclosureOfDefinedBenefitPlansTable
1347 Defined benefit plans [axis] Axis ifrs-full:DefinedBenefitPlansAxis
1348 Defined benefit plans [member] Member ifrs-full:DefinedBenefitPlansMember
1349 Pension plans Member snn:DefinedBenefitPensionPlansMember
1350 Retirement Healthcare Member snn:RetirementHealthcareMember
1351 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
1352 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
1353 United Kingdom Member country:GB
1354 United States of America Member country:US
1355 Other Member snn:OtherMember
1356 Funding arrangements of defined benefit plans [axis] Axis ifrs-full:FundingArrangementsOfDefinedBenefitPlansAxis
1357 Funding arrangements of defined benefit plans [member] Member ifrs-full:FundingArrangementsOfDefinedBenefitPlansMember
1358 Funded plans Member ifrs-full:WhollyOrPartlyFundedDefinedBenefitPlansMember
1359 Unfunded plans Member ifrs-full:WhollyUnfundedDefinedBenefitPlansMember
1360 Range [axis] Axis ifrs-full:RangeAxis
1361 Ranges [member] Member ifrs-full:RangesMember
1362 Minimium Member ifrs-full:BottomOfRangeMember
1363 Maximum Member ifrs-full:TopOfRangeMember
1364 Disclosure of defined benefit plans [line items] LineItems ifrs-full:DisclosureOfDefinedBenefitPlansLineItems
1365 Funded Concept (Monetary) As Of Credit snn:DefinedBenefitObligationAtPresentValueFundedPortion
1366 Unfunded Concept (Monetary) As Of Credit snn:DefinedBenefitObligationAtPresentValueUnfundedPortion
1367 Amount recognised on the balance sheet – liability Concept (Monetary) As Of Credit ifrs-full:NoncurrentRecognisedLiabilitiesDefinedBenefitPlan
1368 Amount recognised on the balance sheet – asset Concept (Monetary) As Of Debit ifrs-full:NoncurrentRecognisedAssetsDefinedBenefitPlan
1369 Number of countries Concept (Integer) As Of snn:NumberOfCountriesInWhichGroupSponsorsDefinedBenefitPlans
1370 Retirement benefits as a percentage of final salary Concept (Percent) As Of snn:DefinedBenefitPlansEntitlementToRetirementBenefitAsPercentageOfFinalSalary
1371 Number of major defined benefit plans Concept (Integer) As Of snn:NumberOfMajorDefinedBenefitPensionPlans
1372 Minimum funding requirement period Concept (xbrli:durationItemType) For Period snn:FundingPresentValueOfAccruedBenefitsTerm
1373 41802 - Disclosure - RETIREMENT BENEFIT OBLIGATIONS - Reconciliation of benefit obligations and pension assets (Details) Network

*

*

 http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsReconciliationOfBenefitObligationsAndPensionAssetsDetails
1374 Disclosure of net defined benefit liability (asset) [table] Table

*

*

 ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetTable
1375 Defined benefit plans [axis] Axis ifrs-full:DefinedBenefitPlansAxis
1376 Defined benefit plans [member] Member ifrs-full:DefinedBenefitPlansMember
1377 Pension plans Member snn:DefinedBenefitPensionPlansMember
1378 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
1379 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
1380 United Kingdom Member country:GB
1381 United States of America Member country:US
1382 Other Member snn:OtherMember
1383 Net defined benefit liability (asset) [axis] Axis ifrs-full:NetDefinedBenefitLiabilityAssetAxis
1384 Net defined benefit liability (asset) [member] Member ifrs-full:NetDefinedBenefitLiabilityAssetMember
1385 Obligations Member ifrs-full:PresentValueOfDefinedBenefitObligationMember
1386 Asset Member ifrs-full:PlanAssetsMember
1387 Disclosure of net defined benefit liability (asset) [line items] LineItems ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetLineItems
1388 Amounts recognised on the balance sheet at beginning of the period Concept (Monetary) As Of Credit ifrs-full:LiabilityAssetOfDefinedBenefitPlans
1389 Movement in pension benefit obligation and pension assets: Abstract ifrs-full:ChangesInNetDefinedBenefitLiabilityAssetAbstract
1390 Current service cost Concept (Monetary) For Period Credit ifrs-full:CurrentServiceCostNetDefinedBenefitLiabilityAsset
1391 Past service credit Concept (Monetary) For Period Credit ifrs-full:PastServiceCostNetDefinedBenefitLiabilityAsset
1392 Interest (expense)/income Concept (Monetary) For Period Credit ifrs-full:InterestExpenseIncomeNetDefinedBenefitLiabilityAsset
1393 Administration costs and taxes Concept (Monetary) For Period Credit snn:AdministrativeCostsAndTaxesNetBenefitLiabilityAsset
1394 Costs recognised in Income statement Concept (Monetary) For Period Credit snn:CostRecognisedInIncomeStatementNetDefinedBenefitLiabilityAsset
1395 Actuarial gain due to liability experience Concept (Monetary) For Period Debit snn:ActuarialGainsLossesArisingFromLiabilityExperience
1396 Actuarial (loss)/gain due to financial assumptions change Concept (Monetary) For Period Debit ifrs-full:ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsNetDefinedBenefitLiabilityAsset
1397 Actuarial gain due to demographic assumptions Concept (Monetary) For Period Debit ifrs-full:ActuarialGainsLossesArisingFromChangesInDemographicAssumptionsNetDefinedBenefitLiabilityAsset
1398 Return on plan assets greater than/(less than) discount rate Concept (Monetary) For Period Debit ifrs-full:ReturnOnPlanAssetsNetDefinedBenefitLiabilityAsset
1399 Re-measurement recognised in OCI Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans
1400 Employer contributions Concept (Monetary) For Period Debit ifrs-full:ContributionsToPlanByEmployerNetDefinedBenefitLiabilityAsset
1401 Employee contributions Concept (Monetary) For Period Debit ifrs-full:ContributionsToPlanByPlanParticipantsNetDefinedBenefitLiabilityAsset
1402 Benefits paid directly by the Group, taxes and administration costs paid from scheme assets Concept (Monetary) For Period Debit snn:BenefitsPaidDirectlyByGroupTaxesAndAdministrationCostsPaidFromSchemeAssetsNetDefinedBenefitLiabilityAsset
1403 Benefits paid Concept (Monetary) For Period Debit snn:BenefitsPaidNetDefinedBenefitLiabilityAsset
1404 Net cash Concept (Monetary) For Period Debit ifrs-full:ContributionsToPlanNetDefinedBenefitLiabilityAsset
1405 Exchange rates Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughChangesInForeignExchangeRatesNetDefinedBenefitLiabilityAsset
1406 Amount recognised on the balance sheet Concept (Monetary) As Of Credit ifrs-full:LiabilityAssetOfDefinedBenefitPlans
1407 Amount recognised on the balance sheet - liability Concept (Monetary) As Of Credit snn:NetDefinedBenefitLiability
1408 Amount recognised on the balance sheet - asset Concept (Monetary) As Of Debit snn:NetDefinedBenefitAsset
1409 Weighted average duration of the defined benefit obligation Concept (Decimal) For Period ifrs-full:WeightedAverageDurationOfDefinedBenefitObligation
1410 41803 - Disclosure - RETIREMENT BENEFIT OBLIGATIONS - Plan assets (Details) Network

*

*

 http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsPlanAssetsDetails
1411 Disclosure of fair value of plan assets [table] Table

*

*

 ifrs-full:DisclosureOfFairValueOfPlanAssetsTable
1412 Defined benefit plans [axis] Axis ifrs-full:DefinedBenefitPlansAxis
1413 Defined benefit plans [member] Member ifrs-full:DefinedBenefitPlansMember
1414 Pension plans Member snn:DefinedBenefitPensionPlansMember
1415 UK Plan Member snn:UkPlanMember
1416 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
1417 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
1418 United Kingdom Member country:GB
1419 United States of America Member country:US
1420 Other Member snn:OtherMember
1421 Levels of fair value hierarchy [axis] Axis ifrs-full:LevelsOfFairValueHierarchyAxis
1422 All levels of fair value hierarchy [member] Member ifrs-full:AllLevelsOfFairValueHierarchyMember
1423 Assets with a quoted market price Member ifrs-full:Level1OfFairValueHierarchyMember
1424 Other assets Member ifrs-full:Level2And3OfFairValueHierarchyMember
1425 Disclosure of fair value of plan assets [line items] LineItems ifrs-full:DisclosureOfFairValueOfPlanAssetsLineItems
1426 Cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalentsAmountContributedToFairValueOfPlanAssets
1427 Equity securities Concept (Monetary) As Of Debit ifrs-full:EquityInstrumentsAmountContributedToFairValueOfPlanAssets
1428 Government bonds – fixed interest Concept (Monetary) As Of Debit snn:GovernmentBondsFixedInterestAmountContributedToFairValueOfPlanAssets
1429 Government bonds – Index Linked Concept (Monetary) As Of Debit snn:GovernmentBondsIndexLinkedAmountContributedToFairValueOfPlanAssets
1430 Corporate bonds Concept (Monetary) As Of Debit snn:CorporateBondsAmountContributedToFairValueOfPlanAssets
1431 Insurance contracts Concept (Monetary) As Of Debit snn:InsuranceContractsAmountContributedToFairValueOfPlanAssets
1432 Property Concept (Monetary) As Of Debit ifrs-full:PropertyAmountContributedToFairValueOfPlanAssets
1433 Other quoted securities Concept (Monetary) As Of Debit snn:OtherQuotedSecuritiesAmountContributedToFairValueOfPlanAssets
1434 Other Bonds Concept (Monetary) As Of Debit snn:OtherBondsAmountContributedToFairValueOfPlanAssets
1435 Liability driven investments Concept (Monetary) As Of Debit snn:LiabilityDrivenInvestmentsAmountContributedToFairValueOfPlanAssets
1436 Diversified growth funds Concept (Monetary) As Of Debit ifrs-full:InvestmentFundsAmountContributedToFairValueOfPlanAssets
1437 Market value of assets Concept (Monetary) As Of Debit ifrs-full:PlanAssetsAtFairValue
1438 Retirement benefits expenses Concept (Monetary) For Period Debit ifrs-full:TerminationBenefitsExpense
1439 Retirement benefit expense Concept (Monetary) For Period Debit snn:RetirementBenefitExpense
1440 Defined contributions plan expenses Concept (Monetary) For Period Debit ifrs-full:PostemploymentBenefitExpenseDefinedContributionPlans
1441 Defined benefit plan expenses Concept (Monetary) For Period Debit ifrs-full:PostemploymentBenefitExpenseDefinedBenefitPlans
1442 Outstanding payments Concept (Monetary) As Of Credit snn:DefinedContributionPlanContributionPayableToPlan
1443 Curtailment gain Concept (Monetary) For Period Credit snn:DefinedBenefitPlanCurtailmentGainsLosses
1444 Past service credit, redundancies Concept (Monetary) For Period Credit snn:DefinedBenefitPlanPastServiceCostCreditRelatingToRedundancies
1445 Service cost Concept (Monetary) For Period Debit snn:DefinedBenefitPlansServiceCost
1446 Past service credit Concept (Monetary) For Period Debit snn:DefinedBenefitPlansPastServiceCost
1447 Settlement loss/(gain) Concept (Monetary) For Period Debit snn:DefinedBenefitPlansSettlementLossGain
1448 Net interest cost, administration and taxes Concept (Monetary) For Period Debit snn:DefinedBenefitPlansInterestCostAdministrationAndTaxExpenses
1449 Total cost (credit) for the plans Concept (Monetary) For Period Debit snn:PostEmploymentBenefitExpenseCreditDefinedBenefitPlans
1450 41804 - Disclosure - RETIREMENT BENEFIT OBLIGATIONS - Principal actuarial assumptions (Details) Network

*

*

 http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsPrincipalActuarialAssumptionsDetails
1451 Disclosure of defined benefit plans [table] Table

*

*

 ifrs-full:DisclosureOfDefinedBenefitPlansTable
1452 Defined benefit plans [axis] Axis ifrs-full:DefinedBenefitPlansAxis
1453 Defined benefit plans [member] Member ifrs-full:DefinedBenefitPlansMember
1454 Pension plans Member snn:DefinedBenefitPensionPlansMember
1455 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
1456 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
1457 United Kingdom Member country:GB
1458 United States of America Member country:US
1459 Disclosure of defined benefit plans [line items] LineItems ifrs-full:DisclosureOfDefinedBenefitPlansLineItems
1460 Discount rate Concept (Percent) As Of ifrs-full:ActuarialAssumptionOfDiscountRates
1461 Future salary increases Concept (Percent) As Of ifrs-full:ActuarialAssumptionOfExpectedRatesOfSalaryIncreases
1462 Future pension increases Concept (Percent) As Of ifrs-full:ActuarialAssumptionOfExpectedRatesOfPensionIncreases
1463 Inflation (RPI) Concept (Percent) As Of snn:ActuarialAssumptionOfExpectedRatesOfInflationRetailPriceIndex
1464 Inflation (CPI) Concept (Percent) As Of snn:ActuarialAssumptionOfExpectedRatesOfInflationConsumerPriceIndex
1465 Life expectancy at age 60, Male Concept (xbrli:durationItemType) For Period snn:LifeExpectancyAtAge60Male
1466 Life expectancy at age 60, Female Concept (xbrli:durationItemType) For Period snn:LifeExpectancyAtAge60Female
1467 Life expectancy at age 60 in 20 years' time, Male Concept (xbrli:durationItemType) For Period snn:LifeExpectancyAtAge60In20YearsTimeMale
1468 Life expectancy at age 60 in 20 years' time, Female Concept (xbrli:durationItemType) For Period snn:LifeExpectancyAtAge60In20YearsTimeFemale
1469 41805 - Disclosure - RETIREMENT BENEFIT OBLIGATIONS - Sensitivity analysis (Details) Network

*

*

 http://www.smith-nephew.com/role/DisclosureRetirementBenefitObligationsSensitivityAnalysisDetails
1470 Disclosure of sensitivity analysis for actuarial assumptions [table] Table

*

*

 ifrs-full:DisclosureOfSensitivityAnalysisForActuarialAssumptionsTable
1471 Defined benefit plans [axis] Axis ifrs-full:DefinedBenefitPlansAxis
1472 Defined benefit plans [member] Member ifrs-full:DefinedBenefitPlansMember
1473 Pension plans Member snn:DefinedBenefitPensionPlansMember
1474 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
1475 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
1476 United Kingdom Member country:GB
1477 United States of America Member country:US
1478 Actuarial assumptions [axis] Axis ifrs-full:ActuarialAssumptionsAxis
1479 Actuarial assumptions [member] Member ifrs-full:ActuarialAssumptionsMember
1480 Discount rate Member ifrs-full:ActuarialAssumptionOfDiscountRatesMember
1481 Inflation Member ifrs-full:ActuarialAssumptionOfExpectedRatesOfInflationMember
1482 Mortality Member ifrs-full:ActuarialAssumptionOfMortalityRatesMember
1483 Disclosure of sensitivity analysis for actuarial assumptions [line items] LineItems ifrs-full:DisclosureOfSensitivityAnalysisForActuarialAssumptionsLineItems
1484 Pension obligation +50bps/+1yr Concept (Monetary) As Of Credit ifrs-full:IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleIncreaseInActuarialAssumption
1485 Pension obligation -50bps/-1yr Concept (Monetary) As Of Credit ifrs-full:IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleDecreaseInActuarialAssumption
1486 Pension cost +50bps/+1yr Concept (Monetary) As Of Credit snn:IncreaseDecreaseInPensionCostDueToReasonablyPossibleIncreaseInActuarialAssumption
1487 Pension cost -50bps/-1yr Concept (Monetary) As Of Credit snn:IncreaseDecreaseInPensionCostDueToReasonablyPossibleDecreaseInActuarialAssumption
1488 Contribution to the plan Concept (Monetary) For Period Debit snn:ContributionToPlanFunding
1489 Supplementary payments Concept (Monetary) For Period Debit snn:ContributionToPlanSupplementaryPaymentsIncludedInFunding
1490 Agreed Supplementary contribution for next year Concept (Monetary) For Period Credit ifrs-full:EstimateOfContributionsExpectedToBePaidToPlan
1491 41901 - Disclosure - EQUITY - Share Capital (Details) Network

*

*

 http://www.smith-nephew.com/role/DisclosureEquityShareCapitalDetails
1492 Disclosure of classes of share capital [table] Table

*

*

 ifrs-full:DisclosureOfClassesOfShareCapitalTable
1493 Components of equity [axis] Axis ifrs-full:ComponentsOfEquityAxis
1494 Equity [member] Member ifrs-full:EquityMember
1495 Share capital Member ifrs-full:IssuedCapitalMember
1496 Classes of share capital [axis] Axis ifrs-full:ClassesOfShareCapitalAxis
1497 Share capital [member] Member ifrs-full:ClassesOfShareCapitalMember
1498 Ordinary shares Member ifrs-full:OrdinarySharesMember
1499 Deferred Shares Member snn:DeferredSharesMember
1500 Share capital LineItems ifrs-full:DisclosureOfClassesOfShareCapitalLineItems
1501 Par value per share Concept (Share) As Of ifrs-full:ParValuePerShare
1502 Number of shares authorised Concept (Shares) As Of ifrs-full:NumberOfSharesAuthorised
1503 Value of shares authorized Concept (Monetary) As Of Debit snn:NumberOfSharesAuthorisedValue
1504 Allotted, issued and fully paid Abstract ifrs-full:NumberOfSharesIssuedAbstract
1505 Number of shares - Beginning balance Concept (Shares) As Of ifrs-full:NumberOfSharesIssued
1506 Share options (in shares) Concept (Shares) For Period snn:IncreaseNumberOfSharesThroughExerciseOfOptions
1507 Shares cancelled (in shares) Concept (Shares) For Period snn:CancellationOfTreasurySharesNumberOfShares
1508 Number of shares - Ending balance Concept (Shares) As Of ifrs-full:NumberOfSharesIssued
1509 Balance at beginning of period Concept (Monetary) As Of Credit ifrs-full:Equity
1510 Shares cancelled Concept (Monetary) For Period Credit ifrs-full:CancellationOfTreasuryShares
1511 Balance at end of period Concept (Monetary) As Of Credit ifrs-full:Equity
1512 Further distribution to each share of any class other than deferred shares in case of winding up Concept (Monetary) As Of Debit snn:FurtherDistributionsToAnyClassOtherThanDeferredShares
1513 41902 - Disclosure - EQUITY - Equity Components (Details) Network

*

*

 http://www.smith-nephew.com/role/DisclosureEquityEquityComponentsDetails
1514 Statement of changes in equity [table] Table

*

*

 ifrs-full:StatementOfChangesInEquityTable
1515 Components of equity [axis] Axis ifrs-full:ComponentsOfEquityAxis
1516 Equity [member] Member ifrs-full:EquityMember
1517 Share capital Member ifrs-full:IssuedCapitalMember
1518 Share premium Member ifrs-full:SharePremiumMember
1519 Capital redemption reserve Member ifrs-full:CapitalRedemptionReserveMember
1520 Treasury shares Member ifrs-full:TreasurySharesMember
1521 Retained earnings and other reserves Member snn:RetainedEarningsAndOtherReservesMember
1522 Equity LineItems ifrs-full:StatementOfChangesInEquityLineItems
1523 Balance Concept (Monetary) As Of Credit ifrs-full:Equity
1524 41903 - Disclosure - EQUITY - Shares Buy-back (Details) Network

*

*

 http://www.smith-nephew.com/role/DisclosureEquitySharesBuyBackDetails
1525 Implied Table Table

*

*

 implied:Table
1526 EQUITY. Abstract ifrs-full:EquityAbstract
1527 Percentage of waiver over the total paid dividends Concept (Percent) For Period snn:PercentageOfWaiverOfDividendsOverTotalPaidDividends
1528 41904 - Disclosure - EQUITY - Treasury Shares (Details) Network

*

*

 http://www.smith-nephew.com/role/DisclosureEquityTreasurySharesDetails
1529 Statement of changes in equity [table] Table

*

*

 ifrs-full:StatementOfChangesInEquityTable
1530 Components of equity [axis] Axis ifrs-full:ComponentsOfEquityAxis
1531 Equity [member] Member ifrs-full:EquityMember
1532 Treasury shares Member ifrs-full:TreasurySharesMember
1533 Treasury shares excluding Employees' Share Trust Member snn:TreasurySharesExcludingEmployeeShareTrustMember
1534 Employees Share Trust Member snn:EmployeesShareTrustMember
1535 Equity LineItems ifrs-full:StatementOfChangesInEquityLineItems
1536 Treasury shares - Beginning balance Concept (Monetary) As Of Debit ifrs-full:TreasuryShares
1537 Shares purchased Concept (Monetary) For Period Debit ifrs-full:PurchaseOfTreasuryShares
1538 Shares transferred from treasury Concept (Monetary) For Period snn:SharesTransferredFromTreasury
1539 Shares transferred to Group beneficiaries Concept (Monetary) For Period Credit snn:IncreaseDecreaseThroughCostOfSharesTransferredToBeneficiaries
1540 Shares cancelled Concept (Monetary) For Period Credit ifrs-full:CancellationOfTreasuryShares
1541 Treasury shares - Ending balance Concept (Monetary) As Of Debit ifrs-full:TreasuryShares
1542 Number of shares Abstract ifrs-full:NumberOfSharesIssuedAbstract
1543 Number of shares - Beginning balance Concept (Shares) As Of ifrs-full:NumberOfSharesIssued
1544 Shares purchased (in shares) Concept (Shares) For Period snn:PurchaseOfTreasurySharesNumberOfShares
1545 Shares transferred from treasury (in shares) Concept (Shares) For Period snn:NumberOfSharesTransferredFromTreasury
1546 Shares transferred to Group beneficiaries (in shares) Concept (Shares) For Period snn:SharesTransferredToBeneficiaries
1547 Shares cancelled (in shares) Concept (Shares) For Period snn:CancellationOfTreasurySharesNumberOfShares
1548 Number of shares - Ending balance Concept (Shares) As Of ifrs-full:NumberOfSharesIssued
1549 41905 - Disclosure - EQUITY - Dividends (Details) Network

*

*

 http://www.smith-nephew.com/role/DisclosureEquityDividendsDetails
1550 Disclosure of classes of share capital [table] Table

*

*

 ifrs-full:DisclosureOfClassesOfShareCapitalTable
1551 Classes of share capital [axis] Axis ifrs-full:ClassesOfShareCapitalAxis
1552 Share capital [member] Member ifrs-full:ClassesOfShareCapitalMember
1553 Ordinary shares Member ifrs-full:OrdinarySharesMember
1554 Equity LineItems ifrs-full:DisclosureOfClassesOfShareCapitalLineItems
1555 Ordinary final dividends per share Concept (Share) For Period ifrs-full:DividendsRecognisedAsDistributionsToOwnersPerShare
1556 Interim dividend per ordinary share Concept (Share) For Period ifrs-full:DividendsPaidOrdinarySharesPerShare
1557 Ordinary dividends paid relating to prior years Concept (Monetary) For Period Debit ifrs-full:DividendsRecognisedAsDistributionsToOwnersOfParentRelatingToPriorYears
1558 Ordinary dividends paid relating to current years Concept (Monetary) For Period Debit ifrs-full:DividendsRecognisedAsDistributionsToOwnersOfParentRelatingToCurrentYear
1559 Total dividends paid for ordinary share Concept (Monetary) For Period Debit ifrs-full:DividendsPaid
1560 Proposed final dividend per ordinary share Concept (Share) For Period ifrs-full:DividendsProposedOrDeclaredBeforeFinancialStatementsAuthorisedForIssueButNotRecognisedAsDistributionToOwnersPerShare
1561 Total proposed dividends Concept (Monetary) For Period ifrs-full:DividendsProposedOrDeclaredBeforeFinancialStatementsAuthorisedForIssueButNotRecognisedAsDistributionToOwners
1562 Propsed interim dividend, as a percentage of the total dividend from the previous year Concept (Percent) As Of snn:InterimDividendPercentOfPriorYearTotalDividendProposed
1563 Distributable reserves Concept (Monetary) For Period Credit snn:DistributableReserves
1564 42001 - Disclosure - CASH FLOW STATEMENT - Analysis of net debt (Details) Network

*

*

 http://www.smith-nephew.com/role/DisclosureCashFlowStatementAnalysisOfNetDebtDetails
1565 Disclosure Of Cash Flow Statement [Table] Table

*

*

 snn:DisclosureOfCashFlowStatementTable
1566 Classes of liabilities [axis] Axis ifrs-full:ClassesOfLiabilitiesAxis
1567 Liabilities [member] Member ifrs-full:LiabilitiesMember
1568 Overdrafts Member snn:BankOverdraftMember
1569 Due within one year Member snn:ShortTermBorrowingMember
1570 Due after one year Member snn:LongTermBorrowingMember
1571 Classes of assets [axis] Axis ifrs-full:ClassesOfAssetsAxis
1572 Assets [member] Member ifrs-full:ClassesOfAssetsMember
1573 Cash Member snn:CashAtBankMember
1574 Classes of financial assets [axis] Axis ifrs-full:ClassesOfFinancialAssetsAxis
1575 Financial assets, class [member] Member ifrs-full:FinancialAssetsMember
1576 Currency swaps Member ifrs-full:CurrencySwapContractMember
1577 Interest swaps Member ifrs-full:InterestRateSwapContractMember
1578 Disclosure Of Cash Flow Statement [line items] LineItems snn:DisclosureOfCashFlowStatementLineItems
1579 Balance at beginning of year Concept (Monetary) As Of Credit ifrs-full:NetDebt
1580 Net cash flow impact Concept (Monetary) For Period Credit snn:IncreaseDecreaseInNetDebtFromNetCashFlowBeforeEffectOfExchangeDifference
1581 Termination of finance lease Concept (Monetary) For Period Credit snn:IncreaseDecreaseInNetDebtThroughEffectOfTerminationOfFinanceLease
1582 Exchange adjustment Concept (Monetary) For Period Credit snn:IncreaseDecreaseInNetDebtThroughEffectOfChangesInForeignExchange
1583 Balance at end of year Concept (Monetary) As Of Credit ifrs-full:NetDebt
1584 42002 - Disclosure - CASH FLOW STATEMENT - Reconciliation of net cash flow to movement in net debt (Details) Network

*

*

 http://www.smith-nephew.com/role/DisclosureCashFlowStatementReconciliationOfNetCashFlowToMovementInNetDebtDetails
1585 Implied Table Table

*

*

 implied:Table
1586 CASH FLOW STATEMENT Abstract snn:DisclosureOfCashFlowStatementAbstract
1587 Net cash flow from cash net of overdrafts Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges
1588 Settlement of Currency Swaps Concept (Monetary) For Period Credit snn:SettlementOfCurrencySwaps
1589 Net cash flow from borrowings Concept (Monetary) For Period Debit snn:ProceedsFromRepaymentsOfBorrowingsClassifiedAsFinancingActivities
1590 Change in net debt from net cash flow Concept (Monetary) For Period Credit snn:IncreaseDecreaseInNetDebtFromNetCashFlowBeforeEffectOfExchangeDifference
1591 Termination of finance lease Concept (Monetary) For Period Credit snn:IncreaseDecreaseInNetDebtThroughEffectOfTerminationOfFinanceLease
1592 Change in net debt in the year Concept (Monetary) For Period Credit snn:IncreaseDecreaseInNetDebt
1593 Balance at beginning of year Concept (Monetary) As Of Credit ifrs-full:NetDebt
1594 Balance at end of year Concept (Monetary) As Of Credit ifrs-full:NetDebt
1595 42003 - Disclosure - CASH FLOW STATEMENT - Cash and cash equivalents (Details) Network

*

*

 http://www.smith-nephew.com/role/DisclosureCashFlowStatementCashAndCashEquivalentsDetails
1596 Implied Table Table

*

*

 implied:Table
1597 CASH FLOW STATEMENT Abstract snn:DisclosureOfCashFlowStatementAbstract
1598 Cash and cash equivalents if different from statement of financial position [abstract] Abstract ifrs-full:CashAndCashEquivalentsIfDifferentFromStatementOfFinancialPositionAbstract
1599 Cash at bank Concept (Monetary) As Of Debit ifrs-full:BalancesWithBanks
1600 Bank overdrafts Concept (Monetary) As Of Credit ifrs-full:BankOverdraftsClassifiedAsCashEquivalents
1601 Cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
1602 Number of countries in which the company operates Concept (Integer) As Of snn:NumberOfCountriesCompanyOperatesIn
1603 42004 - Disclosure - CASH FLOW STATEMENT - Cash (inflows)/outflows arising from financing activities (Details) Network

*

*

 http://www.smith-nephew.com/role/DisclosureCashFlowStatementCashInflowsOutflowsArisingFromFinancingActivitiesDetails
1604 Statement [Table] Table

*

*

 us-gaap:StatementTable
1605 Financing Cash Flow Location [Axis] Axis snn:FinancingCashFlowLocationAxis
1606 Financing Cash Flow Location [Member] Member snn:FinancingCashFlowLocationMember
1607 Debt Member snn:IfrsDebtMember
1608 Equity Member snn:IfrsEquityMember
1609 Disclosure Of Cash Flow Statement [line items] LineItems snn:DisclosureOfCashFlowStatementLineItems
1610 Repayment of bank loans Concept (Monetary) For Period Credit snn:RepaymentsOfCurrentAndNonCurrrentBorrowings
1611 Borrowings of bank loans Concept (Monetary) For Period Debit ifrs-full:ProceedsFromBorrowingsClassifiedAsFinancingActivities
1612 Cash outflow from other Concept (Monetary) For Period Credit snn:SettlementOfCurrencySwaps
1613 Dividends Concept (Monetary) For Period Credit ifrs-full:DividendsPaidToEquityHoldersOfParentClassifiedAsFinancingActivities
1614 Purchase of own shares Concept (Monetary) For Period Credit ifrs-full:PaymentsToAcquireOrRedeemEntitysShares
1615 Proceeds from own Shares/issue of ordinary shares Concept (Monetary) For Period Debit snn:ProceedsFromIssueOfOwnSharesAndOrdinaryShares
1616 Net cash used in financing activities Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInFinancingActivities
1617 42101 - Disclosure - ACQUISITIONS AND DISPOSALS (Details) Network

*

*

 http://www.smith-nephew.com/role/DisclosureAcquisitionsAndDisposalsDetails
1618 Disclosure of detailed information about business combination [table] Table

*

*

 ifrs-full:DisclosureOfBusinessCombinationsTable
1619 Business combinations [axis] Axis ifrs-full:BusinessCombinationsAxis
1620 Entity's total for business combinations [member] Member ifrs-full:EntitysTotalForBusinessCombinationsMember
1621 Rotation Medical Inc Member snn:RotationMedicalMember
1622 Blue Belt Holdings Inc Member snn:BlueBeltHoldingsIncMember
1623 BST-CarGel Member snn:BstCargelMember
1624 Range [axis] Axis ifrs-full:RangeAxis
1625 Ranges [member] Member ifrs-full:RangesMember
1626 Maximum Member ifrs-full:TopOfRangeMember
1627 Disclosure of detailed information about business combination [line items] LineItems ifrs-full:DisclosureOfBusinessCombinationsLineItems
1628 Number of businesses acquired, deemed to be business combinations Concept (Integer) For Period snn:NumberOfBusinessesAcquiredBusinessCombination
1629 Percentage of share capital acquired Concept (Percent) As Of ifrs-full:PercentageOfVotingEquityInterestsAcquired
1630 Maximum consideration payable at the acquisition date Concept (Monetary) As Of Credit snn:AcquisitionDateMaximumConsiderationPayable
1631 Fair value of consideration Concept (Monetary) As Of Credit ifrs-full:AcquisitiondateFairValueOfTotalConsiderationTransferred
1632 Deferred consideration Concept (Monetary) For Period Debit snn:DeferredConsiderationRecognisedAsOfAcquisitionDate
1633 Contingent consideration Concept (Monetary) As Of Debit ifrs-full:ContingentConsiderationArrangementsAndIndemnificationAssetsRecognisedAsOfAcquisitionDate
1634 Risk-free discount rate (as a percent) Concept (Percent) As Of snn:ActuarialAssumptionOfRiskFreeDiscountRateContingentConsideration
1635 Cash flows used in obtaining control of subsidiaries or other businesses Concept (Monetary) For Period Credit ifrs-full:CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities
1636 Aggregate identifiable assets acquired and liabilities assumed Abstract ifrs-full:AmountsRecognisedAsOfAcquisitionDateForEachMajorClassOfAssetsAcquiredAndLiabilitiesAssumedAbstract
1637 Intangible assets Concept (Monetary) As Of Debit ifrs-full:IdentifiableIntangibleAssetsRecognisedAsOfAcquisitionDate
1638 Property, plant & equipment and inventory Concept (Monetary) As Of Debit snn:PropertyPlantAndEquipmentAndInventoryRecognisedAsOfAcquisitionDate
1639 Inventory Concept (Monetary) As Of Debit ifrs-full:InventoryRecognisedAsOfAcquisitionDate
1640 Trade and other receivables Concept (Monetary) As Of Debit snn:TradeReceivablesAndPrepaymentsRecognisedAsOfAcquisitionDate
1641 Trade and other payable Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherPayablesRecognisedAsOfAcquisitionDate
1642 Provisions Concept (Monetary) As Of Credit snn:ProvisionsRecognisedAsOfAcquisitionDate
1643 Deferred tax assets Concept (Monetary) As Of Debit ifrs-full:DeferredTaxAssetsRecognisedAsOfAcquisitionDate
1644 Deferred tax liability Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilitiesRecognisedAsOfAcquisitionDate
1645 Net assets Concept (Monetary) As Of Debit ifrs-full:IdentifiableAssetsAcquiredLiabilitiesAssumed
1646 Goodwill Concept (Monetary) As Of Debit ifrs-full:GoodwillRecognisedAsOfAcquisitionDate
1647 Cash acquired Concept (Monetary) As Of Credit ifrs-full:CashTransferred
1648 Consideration (net of cash acquired) Concept (Monetary) As Of Credit snn:ConsiderationTransferredNetOfCashAcquiredAcquisitionDateFairValue
1649 42102 - Disclosure - ACQUISITIONS AND DISPOSALS - Disposal of business (Details) Network

*

*

 http://www.smith-nephew.com/role/DisclosureAcquisitionsAndDisposalsDisposalOfBusinessDetails
1650 Continuing and discontinued operations [table] Table

*

*

 snn:ContinuingAndDiscontinuedOperationsTable
1651 Continuing and discontinued operations [axis] Axis ifrs-full:ContinuingAndDiscontinuedOperationsAxis
1652 Aggregate continuing and discontinued operations [member] Member ifrs-full:AggregateContinuingAndDiscontinuedOperationsMember
1653 Discontinued operations [member] Member ifrs-full:DiscontinuedOperationsMember
1654 Gynaecology business Member snn:GynaecologyBusinessMember
1655 Continuing and discontinued operations [line items] LineItems snn:ContinuingAndDiscontinuedOperationsLineItems
1656 Cash consideration Concept (Monetary) For Period Debit snn:ConsiderationReceived
1657 Plant and equipment Concept (Monetary) As Of Debit snn:DisposalGroupPlantAndEquipment
1658 Inventory Concept (Monetary) As Of Debit snn:DisposalGroupInventory
1659 Disposal related costs Concept (Monetary) For Period Debit snn:DisposalRelatedCosts
1660 Liabilities Concept (Monetary) For Period Credit snn:DisposalRelatedLiabilities
1661 Gain on disposal of business Concept (Monetary) For Period Credit snn:GainsLossesOnDisposalOfBusiness
1662 Tax paid disposal of business Concept (Monetary) For Period Credit snn:TaxPaidOnDisposalOfBusiness
1663 42201 - Disclosure - OPERATING LEASES - (Details) Network

*

*

 http://www.smith-nephew.com/role/DisclosureOperatingLeasesDetails
1664 Disclosure of maturity analysis of operating lease payments [table] Table

*

*

 ifrs-full:DisclosureOfMaturityAnalysisOfOperatingLeasePaymentsTable
1665 Classes of assets [axis] Axis ifrs-full:ClassesOfAssetsAxis
1666 Assets [member] Member ifrs-full:ClassesOfAssetsMember
1667 Land and buildings Member ifrs-full:LandAndBuildingsMember
1668 Other assets [member] Member ifrs-full:OtherAssetsMember
1669 Maturity [axis] Axis ifrs-full:MaturityAxis
1670 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
1671 Within one year or on demand Member ifrs-full:NotLaterThanOneYearMember
1672 Between one and two years Member ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember
1673 Between two and three years Member ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember
1674 Between three and four years Member ifrs-full:LaterThanThreeYearsAndNotLaterThanFourYearsMember
1675 Between four and five years Member ifrs-full:LaterThanFourYearsAndNotLaterThanFiveYearsMember
1676 After five years Member ifrs-full:LaterThanFiveYearsMember
1677 Operating leases LineItems ifrs-full:DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeLineItems
1678 Future minimum lease payments Concept (Monetary) As Of Credit ifrs-full:MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease
1679 42301 - Disclosure - OTHER NOTES TO THE ACCOUNTS - Stock Options Outstanding (Details) Network

*

*

 http://www.smith-nephew.com/role/DisclosureOtherNotesToAccountsStockOptionsOutstandingDetails
1680 Disclosure of terms and conditions of share-based payment arrangement [table] Table

*

*

 ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable
1681 Range [axis] Axis ifrs-full:RangeAxis
1682 Ranges [member] Member ifrs-full:RangesMember
1683 Minimium Member ifrs-full:BottomOfRangeMember
1684 Maximum Member ifrs-full:TopOfRangeMember
1685 Share-Based Compensations LineItems ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems
1686 Share option activities Abstract snn:ShareOptionActivitiesAbstract
1687 Number of share options outstanding in share-based payment arrangement at end of period Concept (Decimal) As Of ifrs-full:NumberOfOutstandingShareOptions
1688 Exercise price of outstanding share options at ending of period Concept (Monetary) As Of ifrs-full:ExercisePriceOfOutstandingShareOptions
1689 Maximum number of share options available to grant Concept (Shares) As Of snn:NumberOfShareOptionsMaximumAvailableToGrant
1690 Expense for share-based payments Concept (Monetary) For Period Debit ifrs-full:ExpenseFromSharebasedPaymentTransactionsWithEmployees
1691 42302 - Disclosure - OTHER NOTES TO THE ACCOUNTS - Related Party Transactions (Details) Network

*

*

 http://www.smith-nephew.com/role/DisclosureOtherNotesToAccountsRelatedPartyTransactionsDetails
1692 Disclosure of transactions between related parties [table] Table

*

*

 ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesTable
1693 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
1694 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
1695 Executive officers (including Non-Executive Directors) Member ifrs-full:KeyManagementPersonnelOfEntityOrParentMember
1696 Disclosure of transactions between related parties [line items] LineItems ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesLineItems
1697 Short-term employee benefits Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensationShorttermEmployeeBenefits
1698 Share-based payments expense Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensationSharebasedPayment
1699 Pension and post-employment benefit entitlements Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensationPostemploymentBenefits
1700 Other benefits Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensationOtherLongtermBenefits
1701 Total remunerations Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensation
1702 42401 - Disclosure - POST BALANCE SHEET EVENTS (Details) Network

*

*

 http://www.smith-nephew.com/role/DisclosurePostBalanceSheetEventsDetails
1703 Disclosure of non-adjusting events after reporting period [table] Table

*

*

 ifrs-full:DisclosureOfNonadjustingEventsAfterReportingPeriodTable
1704 Business combinations [axis] Axis ifrs-full:BusinessCombinationsAxis
1705 Entity's total for business combinations [member] Member ifrs-full:EntitysTotalForBusinessCombinationsMember
1706 Ceterix Orthopaedics Member snn:CeterixOrthopaedicsMember
1707 Disclosure of non-adjusting events after reporting period LineItems ifrs-full:DisclosureOfNonadjustingEventsAfterReportingPeriodLineItems
1708 Percentage of share capital acquired Concept (Percent) As Of ifrs-full:PercentageOfVotingEquityInterestsAcquired
1709 Maximum consideration payable at the acquisition date Concept (Monetary) As Of Credit snn:AcquisitionDateMaximumConsiderationPayable
1710 Fair value of consideration Concept (Monetary) As Of Credit ifrs-full:AcquisitiondateFairValueOfTotalConsiderationTransferred
1711 Deferred consideration Concept (Monetary) For Period Debit snn:DeferredConsiderationRecognisedAsOfAcquisitionDate
1712 Contingent consideration Concept (Monetary) As Of Debit ifrs-full:ContingentConsiderationArrangementsAndIndemnificationAssetsRecognisedAsOfAcquisitionDate
1713 Risk-free discount rate (as a percent) Concept (Percent) As Of snn:ActuarialAssumptionOfRiskFreeDiscountRateContingentConsideration
1714 Net assets acquired Concept (Monetary) As Of Debit snn:IdentifiableNetAssetsAcquiredExcludingIdentifiableIntangibleAssetsAndGoodwill
1715 Identifiable intangible assets and goodwill as of acquisition date Concept (Monetary) As Of Debit snn:IdentifiableIntangibleAssetsAndGoodwillRecognisedAsOfAcquisitionDate

*

*