Sanofi (SEC Filing Page | XBRL Cloud Viewer | XBRL Instance)

Line Label Object Class Period Type Balance Report ElementName
1 1001 - Document - Document and Entity Information Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DocumentandEntityInformation
2 Implied Table Table

*

*

implied:Table
3 Document - Document and Entity Information [Abstract] Abstract sny:DocumentandEntityInformationAbstract
4 Document Type Concept (Submission Type) For Period dei:DocumentType
5 Amendment Flag Concept (Yes/No) For Period dei:AmendmentFlag
6 Document Period End Date Concept (Date) For Period dei:DocumentPeriodEndDate
7 Document Fiscal Year Focus Concept (Year) For Period dei:DocumentFiscalYearFocus
8 Document Fiscal Period Focus Concept (Fiscal Period) For Period dei:DocumentFiscalPeriodFocus
9 Trading Symbol Concept (Text/String) For Period dei:TradingSymbol
10 Entity Registrant Name Concept (Text/String) For Period dei:EntityRegistrantName
11 Entity Central Index Key Concept (CIK Number) For Period dei:EntityCentralIndexKey
12 Current Fiscal Year End Date Concept (Month/Day) For Period dei:CurrentFiscalYearEndDate
13 Entity Well-known Seasoned Issuer Concept (Yes/No) For Period dei:EntityWellKnownSeasonedIssuer
14 Entity Voluntary Filers Concept (Yes/No) For Period dei:EntityVoluntaryFilers
15 Entity Current Reporting Status Concept (Yes/No) For Period dei:EntityCurrentReportingStatus
16 Entity Filer Category Concept (Filer Category) For Period dei:EntityFilerCategory
17 Entity Common Stock, Shares Outstanding Concept (Shares) As Of dei:EntityCommonStockSharesOutstanding
18 1003 - Statement - Consolidated Balance Sheets Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/StatementOfFinancialPositionOrderOfLiquidity-220000
19 Implied Table Table

*

*

implied:Table
20 Statement of financial position [abstract] Abstract ifrs-full:StatementOfFinancialPositionAbstract
21 Assets Abstract ifrs-full:AssetsAbstract
22 Property, plant and equipment Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
23 Goodwill Concept (Monetary) As Of Debit ifrs-full:Goodwill
24 Other intangible assets Concept (Monetary) As Of Debit ifrs-full:IntangibleAssetsOtherThanGoodwill
25 Investments accounted for using the equity method Concept (Monetary) As Of Debit ifrs-full:InvestmentAccountedForUsingEquityMethod
26 Other non-current assets Concept (Monetary) As Of Debit ifrs-full:OtherNoncurrentAssets
27 Deferred tax assets Concept (Monetary) As Of Debit ifrs-full:DeferredTaxAssets
28 Non-current assets Concept (Monetary) As Of Debit ifrs-full:NoncurrentAssets
29 Inventories Concept (Monetary) As Of Debit ifrs-full:Inventories
30 Accounts receivable Concept (Monetary) As Of Debit ifrs-full:CurrentTradeReceivables
31 Other current assets Concept (Monetary) As Of Debit ifrs-full:OtherCurrentAssets
32 Cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
33 Current assets Concept (Monetary) As Of Debit ifrs-full:CurrentAssetsOtherThanAssetsOrDisposalGroupsClassifiedAsHeldForSaleOrAsHeldForDistributionToOwners
34 Assets held for sale or exchange Concept (Monetary) As Of Debit ifrs-full:NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSale
35 Total assets Concept (Monetary) As Of Debit ifrs-full:Assets
36 Equity and liabilities Abstract ifrs-full:EquityAndLiabilitiesAbstract
37 Equity attributable to equity holders of Sanofi Concept (Monetary) As Of Credit ifrs-full:EquityAttributableToOwnersOfParent
38 Equity attributable to non-controlling interests Concept (Monetary) As Of Credit ifrs-full:NoncontrollingInterests
39 Total equity Concept (Monetary) As Of Credit ifrs-full:Equity
40 Long-term debt Concept (Monetary) As Of Credit ifrs-full:LongtermBorrowings
41 Non-current liabilities related to business combinations and to non-controlling interests Concept (Monetary) As Of Credit sny:NoncurrentLiabilitiesRelatedToBusinessCombinationsAndToNoncontrollingInterests
42 Non-current provisions and other non-current liabilities Concept (Monetary) As Of Credit sny:NoncurrentProvisionsAndOtherNoncurrentLiabilities
43 Deferred tax liabilities Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilities
44 Non-current liabilities Concept (Monetary) As Of Credit ifrs-full:NoncurrentLiabilities
45 Accounts payable Concept (Monetary) As Of Credit sny:CurrentTradePayables
46 Current liabilities related to business combinations and to non-controlling interests Concept (Monetary) As Of Credit sny:CurrentLiabilitiesRelatedToBusinessCombinationsAndToNonControllingInterests
47 Current provisions and other current liabilities Concept (Monetary) As Of Credit sny:CurrentProvisionsAndOtherCurrentLiabilities
48 Short-term debt and current portion of long-term debt Concept (Monetary) As Of Credit ifrs-full:CurrentBorrowingsAndCurrentPortionOfNoncurrentBorrowings
49 Current liabilities Concept (Monetary) As Of Credit ifrs-full:CurrentLiabilitiesOtherThanLiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSale
50 Liabilities related to assets held for sale or exchange Concept (Monetary) As Of Credit ifrs-full:LiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSale
51 Total equity and liabilities Concept (Monetary) As Of Credit ifrs-full:EquityAndLiabilities
52 1004 - Statement - Consolidated Income Statements Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/StatementOfComprehensiveIncomeProfitOrLossByFunctionOfExpense-310000
53 Implied Table Table

*

*

implied:Table
54 Profit (loss) [abstract] Abstract ifrs-full:ProfitLossAbstract
55 Net sales Concept (Monetary) For Period Credit ifrs-full:RevenueFromSaleOfGoods
56 Other revenues Concept (Monetary) For Period Credit ifrs-full:OtherRevenue
57 Cost of sales Concept (Monetary) For Period Debit ifrs-full:CostOfSales
58 Gross profit Concept (Monetary) For Period Credit ifrs-full:GrossProfit
59 Research and development expenses Concept (Monetary) For Period Debit ifrs-full:ResearchAndDevelopmentExpense
60 Selling and general expenses Concept (Monetary) For Period Debit ifrs-full:SellingGeneralAndAdministrativeExpense
61 Other operating income Concept (Monetary) For Period Credit ifrs-full:MiscellaneousOtherOperatingIncome
62 Other operating expenses Concept (Monetary) For Period Debit ifrs-full:MiscellaneousOtherOperatingExpense
63 Amortization of intangible assets Concept (Monetary) For Period ifrs-full:AmortisationIntangibleAssetsOtherThanGoodwill
64 Impairment of intangible assets Concept (Monetary) For Period Debit sny:ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossIntangibleAssetsOtherThanGoodwill
65 Fair value remeasurement of contingent consideration Concept (Monetary) For Period Debit sny:FairValueRemeasurementOfContingentConsideration
66 Restructuring costs and similar items Concept (Monetary) For Period Debit sny:RestructuringCostsAndSimilarItems
67 Other gains and losses, and litigation Concept (Monetary) For Period Credit sny:OtherGainsAndLossesAndLitigation
68 Operating income Concept (Monetary) For Period Credit ifrs-full:ProfitLossFromOperatingActivities
69 Financial expenses Concept (Monetary) For Period Debit ifrs-full:FinanceCosts
70 Financial income Concept (Monetary) For Period Credit ifrs-full:FinanceIncome
71 Income before tax and investments accounted for using the equity method Concept (Monetary) For Period Credit sny:IncomeBeforeTaxAndInvestmentsAccountedForEquityMethodInvestments
72 Income tax expense Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
73 Share of profit/(loss) from investments accounted for using the equity method Concept (Monetary) For Period Credit ifrs-full:ShareOfProfitLossOfAssociatesAccountedForUsingEquityMethod
74 Net income excluding the exchanged/held-for-exchange Animal Health business Concept (Monetary) For Period Credit ifrs-full:ProfitLossFromContinuingOperations
75 Net income/(loss) of the exchanged/held-for-exchange Animal Health business Concept (Monetary) For Period Credit ifrs-full:ProfitLossFromDiscontinuedOperations
76 Net income Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
77 Net income attributable to non-controlling interests Concept (Monetary) For Period Credit ifrs-full:ProfitLossAttributableToNoncontrollingInterests
78 Net income attributable to equity holders of Sanofi Concept (Monetary) For Period Credit ifrs-full:ProfitLossAttributableToOwnersOfParent
79 Average number of shares outstanding (million) Concept (Shares) For Period ifrs-full:WeightedAverageShares
80 Average number of shares after dilution (million) Concept (Shares) For Period ifrs-full:AdjustedWeightedAverageShares
81 Basic earnings per share (in euros) Concept (Share) For Period ifrs-full:BasicEarningsLossPerShare
82 Basic earnings per share excluding the exchanged/held-for-exchangeAnimal Health business (in euros) Concept (Share) For Period ifrs-full:BasicEarningsLossPerShareFromContinuingOperations
83 Diluted earnings per share (in euros) Concept (Share) For Period ifrs-full:DilutedEarningsLossPerShare
84 Diluted earnings per share excluding the exchanged/held-for-exchangeAnimal Health business (in euros) Concept (Share) For Period ifrs-full:DilutedEarningsLossPerShareFromContinuingOperations
85 1005 - Statement - Consolidated Statements of Comprehensive Income Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/StatementOfComprehensiveIncomeOCIComponentsPresentedNetOfTax-410000
86 Implied Table Table

*

*

implied:Table
87 Statement of comprehensive income [abstract] Abstract ifrs-full:StatementOfComprehensiveIncomeAbstract
88 Net income Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
89 Attributable to equity holders of Sanofi Concept (Monetary) For Period Credit ifrs-full:ProfitLossAttributableToOwnersOfParent
90 Attributable to non-controlling interests Concept (Monetary) For Period Credit ifrs-full:ProfitLossAttributableToNoncontrollingInterests
91 Other comprehensive income: Abstract ifrs-full:OtherComprehensiveIncomeAbstract
92 Actuarial gains/(losses) Concept (Monetary) For Period Debit ifrs-full:ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsNetDefinedBenefitLiabilityAsset
93 Change in fair value of equity instruments included in financial assets Concept (Monetary) For Period ifrs-full:GainsLossesRecognisedInOtherComprehensiveIncomeFairValueMeasurementEntitysOwnEquityInstruments
94 Tax effects Concept (Monetary) For Period Debit ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLoss
95 Items not subsequently reclassifiable to profit or loss Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax
96 Change in fair value of available-for-sale financial assets Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnRemeasuringAvailableforsaleFinancialAssetsBeforeTax
97 Change in fair value of debt instruments included in financial assets Concept (Monetary) For Period Credit sny:GainsLossesOnRemeasuringDebtInstrumentsBeforeTax
98 Change in fair value of cash flow hedges Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnCashFlowHedgesBeforeTax
99 Change in currency translation differences Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnExchangeDifferencesOnTranslationBeforeTax
100 Tax effects Concept (Monetary) For Period Debit ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLoss
101 Items subsequently reclassifiable to profit or loss Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax
102 Other comprehensive income for the period, net of taxes Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncome
103 Comprehensive income Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncome
104 Comprehensive income, attributable to equity holders of Sanofi Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncomeAttributableToOwnersOfParent
105 Comprehensive income, attributable to non-controlling interests Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncomeAttributableToNoncontrollingInterests
106 1006 - Statement - Consolidated Statements of Changes in Equity Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/StatementOfChangesInEquity-610000
107 Statement of changes in equity [table] Table

*

*

ifrs-full:StatementOfChangesInEquityTable
108 Components of equity [axis] Axis ifrs-full:ComponentsOfEquityAxis
109 Equity [member] Member ifrs-full:EquityMember
110 Share capital [member] Member ifrs-full:IssuedCapitalMember
111 Additional paid-in capital and retained earnings [member] Member sny:AdditionalPaidinCapitalAndRetainedEarningsMember
112 Treasury shares [member] Member ifrs-full:TreasurySharesMember
113 Stock options and other share-based payments [member] Member ifrs-full:ReserveOfSharebasedPaymentsMember
114 Other comprehensive income [member] Member ifrs-full:AccumulatedOtherComprehensiveIncomeMember
115 Attributable to equity holders of Sanofi [member] Member ifrs-full:EquityAttributableToOwnersOfParentMember
116 Attributable to non-controlling Interests [member] Member ifrs-full:NoncontrollingInterestsMember
117 Retrospective application and retrospective restatement [axis] Axis ifrs-full:RetrospectiveApplicationAndRetrospectiveRestatementAxis
118 Currently stated [member] Member ifrs-full:RestatedMember
119 Previously stated [member] Member ifrs-full:PreviouslyStatedMember
120 Statement of changes in equity [line items] LineItems ifrs-full:StatementOfChangesInEquityLineItems
121 First-time application of IFRS 15 Concept (Monetary) For Period Credit sny:InitialApplicationOfIFRS15
122 First-time application of IFRS 9 Concept (Monetary) For Period Credit sny:InitialApplicationOfIFRS9
123 Beginning balance Concept (Monetary) As Of Credit ifrs-full:Equity
124 Other comprehensive income for the period Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncome
125 Net income for the period Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
126 Comprehensive income for the period Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncome
127 Dividend paid out of 2015 (€2.93 per share), 2016 (€2.96 per share), 2017 (€3.03 per share) earnings Concept (Monetary) For Period Debit ifrs-full:DividendsRecognisedAsDistributionsToOwnersOfParent
128 Payment of dividends to non-controlling interests Concept (Monetary) For Period Debit ifrs-full:DividendsRecognisedAsDistributionsToNoncontrollingInterests
129 Share repurchase program Concept (Monetary) For Period Debit ifrs-full:PurchaseOfTreasuryShares
130 Reduction in share capital Concept (Monetary) For Period Debit ifrs-full:ReductionOfIssuedCapital
131 Share-based payment plans: Abstract sny:ShareBasedPaymentPlansAbstract
132 Exercise of stock options Concept (Monetary) For Period Credit sny:IncreaseDecreaseThroughSharebasedPaymentPlansExerciseOfStockOptions
133 Issuance of restricted shares Concept (Monetary) For Period Credit sny:IncreaseDecreaseThroughSharebasedPaymentPlansIssuanceOfRestrictedShares
134 Issuance of restricted shares and vesting of existing restricted shares Concept (Monetary) For Period Credit sny:IncreaseDecreaseThroughSharebasedPaymentPlansIssuanceOfRestrictedSharesAndVestingOfExistingRestrictedShares
135 Employee share ownership plan Concept (Monetary) For Period Credit sny:IncreaseDecreaseThroughSharebasedPaymentPlansEmployeesShareOwnershipPlans
136 Proceeds from sale of treasury shares on exercise of stock options Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughTreasuryShareTransactions
137 Value of services obtained from employees Concept (Monetary) For Period Credit sny:IncreaseDecreaseThroughSharebasedPaymentPlansValueOfServicesObtainedFromEmployees
138 Tax effects of the exercise of stock options Concept (Monetary) For Period Credit sny:IncreaseDecreaseThroughSharebasedPaymentPlansTaxEffectsOfTheExerciseOfStockOptions
139 Other changes arising from issuance of restricted shares Concept (Monetary) For Period Credit sny:IncreaseDecreaseThroughIssuanceOfRestrictedSharesEquity
140 Change in non-controlling interests without loss of control Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughChangesInOwnershipInterestsInSubsidiariesThatDoNotResultInLossOfControl
141 Change in non-controlling interests arising from divestment Concept (Monetary) For Period Credit sny:IncreaseDecreaseThroughChangesInNoncontrollingInterestsArisingFromDivestment
142 Ending balance Concept (Monetary) As Of Credit ifrs-full:Equity
143 1007 - Statement - Consolidated Statements of Changes in Equity (Parenthetical) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/StatementOfChangesInEquity-610000Parenthetical
144 Implied Table Table

*

*

implied:Table
145 Statement of changes in equity [abstract] Abstract ifrs-full:StatementOfChangesInEquityAbstract
146 Dividend paid per share Concept (Share) For Period ifrs-full:DividendsPaidOrdinarySharesPerShare
147 1008 - Statement - Consolidated Statements of Cash Flows Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/StatementOfCashFlowsIndirectMethod-520000
148 Implied Table Table

*

*

implied:Table
149 Statement of cash flows [abstract] Abstract ifrs-full:StatementOfCashFlowsAbstract
150 Net income attributable to equity holders of Sanofi Concept (Monetary) For Period Credit ifrs-full:ProfitLossAttributableToOrdinaryEquityHoldersOfParentEntity
151 Net (income)/loss of the exchanged/held-for-exchange Animal Health business Concept (Monetary) For Period Credit ifrs-full:ProfitLossFromDiscontinuedOperations
152 Non-controlling interests, excluding BMS Concept (Monetary) For Period Credit sny:ProfitLossAttributableToNoncontrollingInterestsExcludingBMS
153 Share of undistributed earnings from investments accounted for using the equity method Concept (Monetary) For Period Credit ifrs-full:AdjustmentsForUndistributedProfitsOfInvestmentsAccountedForUsingEquityMethod
154 Depreciation, amortization and impairment of property, plant and equipment and intangible assets Concept (Monetary) For Period Credit sny:AdjustmentsForDepreciationAndAmortisationExpenseAndImpairmentLossReversalOfImpairmentLossOfPropertyPlantAndEquipmentAndIntangibleAsset
155 Gains and losses on disposals of non-current assets, net of tax Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForLossesGainsOnDisposalOfNoncurrentAssets
156 Net change in deferred taxes Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDeferredTaxExpense
157 Net change in non-current provisions and other non-current liabilities Concept (Monetary) For Period Debit sny:AdjustmentsForNonCurrentProvisionsAndOtherNonCurrentLiabilities
158 Cost of employee benefits (stock options and other share-based payments) Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForSharebasedPayments
159 Impact of the workdown of acquired inventories remeasured at fair value Concept (Monetary) For Period Credit sny:ImpactOfTheWorkdownOfAcquiredInventoriesRemeasuredAtFairValue
160 Other profit or loss items with no cash effect Concept (Monetary) For Period Debit ifrs-full:OtherAdjustmentsToReconcileProfitLoss
161 Operating cash flow before changes in working capital and excluding the exchanged/held-for-exchange Animal Health business Concept (Monetary) For Period ifrs-full:CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital
162 (Increase)/decrease in inventories Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDecreaseIncreaseInInventories
163 (Increase)/decrease in accounts receivable Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDecreaseIncreaseInTradeAccountReceivable
164 Increase/(decrease) in accounts payable Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForIncreaseDecreaseInTradeAccountPayable
165 Net change in other current assets and other current liabilities Concept (Monetary) For Period Debit sny:NetChangeInOtherCurrentAssetsAndOtherCurrentLiabilities
166 Net cash provided by/(used in) operating activities excluding the exchanged/held-for-exchange Animal Health business Concept (Monetary) For Period ifrs-full:CashFlowsFromUsedInOperatingActivities
167 Net cash provided by/(used in) operating activities of the exchanged/held-for-exchange Animal Health business Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInOperatingActivitiesDiscontinuedOperations
168 Acquisitions of property, plant and equipment and intangible assets Concept (Monetary) For Period Credit sny:AcquisitionsOfPropertyPlantAndEquipmentAndIntangibleAssets
169 Acquisitions of consolidated undertakings and investments accounted for using the equity method Concept (Monetary) For Period Credit sny:CashFlowUsedInObtainingControlOfSubsidiariesOrOtherBusinessesAndAcquisitionOfInvestmentsAccountedForEquityMethodInvestments
170 Acquisitions of other equity investments Concept (Monetary) For Period Credit sny:AcquisitionsOfOtherEquityInvestments
171 Proceeds from disposals of property, plant and equipment, intangible assets and other non-current assets, net of tax Concept (Monetary) For Period Debit ifrs-full:ProceedsFromDisposalsOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets
172 Net change in other non-current assets Concept (Monetary) For Period Credit sny:NetChangeInOtherNoncurrentAssets
173 Net cash provided by/(used in) investing activities excluding the exchanged/held-for-exchange Animal Health business Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInInvestingActivities
174 Net cash provided by/(used in) investing activities of the exchanged/held-for-exchange Animal Health business Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInInvestingActivitiesDiscontinuedOperations
175 Net cash inflow from the exchange of the Animal Health business for BI's Consumer Healthcare business Concept (Monetary) For Period Debit sny:CashInflowsFromExchangeOfBusinessInvestingActivities
176 Issuance of Sanofi shares Concept (Monetary) For Period Debit ifrs-full:ProceedsFromIssuingShares
177 to shareholders of Sanofi Concept (Monetary) For Period Credit ifrs-full:DividendsPaidToEquityHoldersOfParentClassifiedAsFinancingActivities
178 to non-controlling interests, excluding BMS Concept (Monetary) For Period Credit ifrs-full:DividendsPaidToNoncontrollingInterestsClassifiedAsFinancingActivities
179 Payments received/(made) on changes of ownership interest in a subsidiary without loss of control Concept (Monetary) For Period Credit sny:ProceedPaymentsFromChangesInOwnershipInterestsWithoutLossOfControl
180 Additional long-term debt contracted Concept (Monetary) For Period Debit ifrs-full:ProceedsFromNoncurrentBorrowings
181 Repayments of long-term debt Concept (Monetary) For Period Credit ifrs-full:RepaymentsOfNoncurrentBorrowings
182 Net change in short-term debt Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInIncreaseDecreaseInCurrentBorrowings
183 Acquisitions of treasury shares Concept (Monetary) For Period Credit ifrs-full:PaymentsToAcquireOrRedeemEntitysShares
184 Net cash provided by/(used in) financing activities excluding the exchanged/held-for-exchangeAnimal Health business Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInFinancingActivities
185 Net cash provided by/(used in) financing activities of the exchanged/held-for-exchangeAnimal Health business Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInFinancingActivitiesDiscontinuedOperations
186 Impact of exchange rates on cash and cash equivalents Concept (Monetary) For Period Debit ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalents
187 Net change in cash and cash equivalents Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseInCashAndCashEquivalents
188 Cash and cash equivalents, beginning of period Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
189 Cash and cash equivalents, end of period Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
190 1009 - Statement - Consolidated Statements of Cash Flows (Parenthetical) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/StatementOfCashFlowsIndirectMethod-520000Parenthetical
191 Statement [Table] Table

*

*

us-gaap:StatementTable
192 Business Combinations [Axis] Axis ifrs-full:BusinessCombinationsAxis
193 Entity's total for business combinations [member] Member ifrs-full:EntitysTotalForBusinessCombinationsMember
194 European generic business [member] Member sny:EuropeanGenericBusinessMember
195 Statement [Line Items] LineItems us-gaap:StatementLineItems
196 . Income tax paid Concept (Monetary) For Period Credit ifrs-full:IncomeTaxesPaidRefundClassifiedAsOperatingActivities
197 . Interest paid Concept (Monetary) For Period Credit ifrs-full:InterestPaidClassifiedAsOperatingActivities
198 . Interest received Concept (Monetary) For Period Debit ifrs-full:InterestReceivedClassifiedAsOperatingActivities
199 . Dividends received from non-consolidated entities Concept (Monetary) For Period Credit sny:DividendsReceivedFromNonconsolidatedEntitiesClassifiedAsOperatingActivities
200 Disposals of investments Concept (Monetary) For Period Debit ifrs-full:ProceedsFromDisposalsOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets
201 Balancing cash payment received by Sanofi Concept (Monetary) For Period Credit sny:CashPaymentForExchangeOfBusiness
202 Reimbursements of intragroup accounts with Merial entities Concept (Monetary) For Period Credit sny:CashReimbursementsOfIntragroupAccounts
203 Tax payment due on on gain arising from the divestment Concept (Monetary) For Period Credit sny:TaxPaymentDueOnGainInterestsArisingFromDivestment
204 Consideration for sale of business Concept (Monetary) For Period Credit sny:ConsiderationForSaleOfBusiness
205 Consideration for acquisition of business Concept (Monetary) For Period Debit sny:BusinessAcquiredCashConsideration
206 1010 - Disclosure - Notes to the consolidated financial statements Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfGeneralInformationAboutFinancialStatementsExplanatory
207 Implied Table Table

*

*

implied:Table
208 Text block1 [abstract] Abstract sny:TextBlock1Abstract
209 Notes to the consolidated financial statements Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfGeneralInformationAboutFinancialStatementsExplanatory
210 1011 - Disclosure - International financial reporting standards (IFRS) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsStatementOfIFRSCompliance
211 Implied Table Table

*

*

implied:Table
212 Text block1 [abstract] Abstract sny:TextBlock1Abstract
213 International financial reporting standards (IFRS) Concept (Text Block (HTML)) For Period ifrs-full:StatementOfIFRSCompliance
214 1012 - Disclosure - New standards, amendments and interpretations Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfChangesInAccountingPoliciesAccountingEstimatesAndErrorsExplanatory
215 Implied Table Table

*

*

implied:Table
216 Text block1 [abstract] Abstract sny:TextBlock1Abstract
217 New standards, amendments and interpretations Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfChangesInAccountingPoliciesAccountingEstimatesAndErrorsExplanatory
218 1013 - Disclosure - Use of estimates and judgments Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfAccountingJudgementsAndEstimatesExplanatory
219 Implied Table Table

*

*

implied:Table
220 Text block1 [abstract] Abstract sny:TextBlock1Abstract
221 Use of estimates and judgments Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfAccountingJudgementsAndEstimatesExplanatory
222 1014 - Disclosure - Hyperinflation Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfHyperinflationaryReportingExplanatory
223 Implied Table Table

*

*

implied:Table
224 Text block1 [abstract] Abstract sny:TextBlock1Abstract
225 Hyperinflation Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfHyperinflationaryReportingExplanatory
226 1015 - Disclosure - Withdrawal of the United Kingdom from the European Union Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfWithdrawalOfUnitedKingdomFromEuropeanUnionExplanatory
227 Implied Table Table

*

*

implied:Table
228 Text block1 [abstract] Abstract sny:TextBlock1Abstract
229 Withdrawal of the United Kingdom from the European Union Concept (Text Block (HTML)) For Period sny:DisclosureOfWithdrawalOfUnitedKingdomFromEuropeanUnionExplanatory
230 1016 - Disclosure - Summary of significant accounting policies Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfSummaryOfSignificantAccountingPoliciesExplanatory
231 Implied Table Table

*

*

implied:Table
232 Text block1 [abstract] Abstract sny:TextBlock1Abstract
233 Summary of significant accounting policies Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfSummaryOfSignificantAccountingPoliciesExplanatory
234 1017 - Disclosure - Principal alliances Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfPrincipalAlliancesExplanatory
235 Implied Table Table

*

*

implied:Table
236 Text block1 [abstract] Abstract sny:TextBlock1Abstract
237 Principal alliances Concept (Text Block (HTML)) For Period sny:DisclosureOfPrincipalAlliancesExplanatory
238 1018 - Disclosure - Changes in the scope of consolidation due to acquisitions and divestments Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfImpactOfChangesInTheScopeOfConsolidationDueToAcquisitionsAndDivestmentsExplanatory
239 Implied Table Table

*

*

implied:Table
240 Text block1 [abstract] Abstract sny:TextBlock1Abstract
241 Changes in the scope of consolidation due to acquisitions and divestments Concept (Text Block (HTML)) For Period sny:DisclosureOfImpactOfChangesInTheScopeOfConsolidationDueToAcquisitionsAndDivestmentsExplanatory
242 1019 - Disclosure - Exchange of the animal health business Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfTheExchangeOfTheAnimalHealthBusinessExplanatory
243 Implied Table Table

*

*

implied:Table
244 Text block1 [abstract] Abstract sny:TextBlock1Abstract
245 Exchange of the animal health business Concept (Text Block (HTML)) For Period sny:DisclosureOfTheExchangeOfTheAnimalHealthBusinessExplanatory
246 1020 - Disclosure - Property, plant and equipment Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfPropertyPlantAndEquipmentExplanatory
247 Implied Table Table

*

*

implied:Table
248 Text block1 [abstract] Abstract sny:TextBlock1Abstract
249 Property, plant and equipment Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfPropertyPlantAndEquipmentExplanatory
250 1021 - Disclosure - Goodwill and other intangible assets Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfIntangibleAssetsAndGoodwillExplanatory
251 Implied Table Table

*

*

implied:Table
252 Text block1 [abstract] Abstract sny:TextBlock1Abstract
253 Goodwill and other intangible assets Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfIntangibleAssetsAndGoodwillExplanatory
254 1022 - Disclosure - Impairment of intangible assets and property, plant and equipment Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfImpairmentOfIntangibleAssetsAndPropertyPlantAndEquipmentExplanatory
255 Implied Table Table

*

*

implied:Table
256 Text block1 [abstract] Abstract sny:TextBlock1Abstract
257 Impairment of intangible assets and property, plant and equipment Concept (Text Block (HTML)) For Period sny:DisclosureOfImpairmentOfIntangibleAssetsAndPropertyPlantAndEquipmentExplanatory
258 1023 - Disclosure - Investments accounted for using the equity method Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfInvestmentsAccountedForUsingEquityMethodExplanatory
259 Implied Table Table

*

*

implied:Table
260 Text block1 [abstract] Abstract sny:TextBlock1Abstract
261 Investments accounted for using the equity method Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfInvestmentsAccountedForUsingEquityMethodExplanatory
262 1024 - Disclosure - Other non-current assets Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfOtherNoncurrentAssetsExplanatory
263 Implied Table Table

*

*

implied:Table
264 Text block1 [abstract] Abstract sny:TextBlock1Abstract
265 Other non-current assets Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfOtherNoncurrentAssetsExplanatory
266 1025 - Disclosure - Assets held for sale or exchange and liabilities related to assets held for sale or exchange Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleExplanatory
267 Implied Table Table

*

*

implied:Table
268 Text block1 [abstract] Abstract sny:TextBlock1Abstract
269 Assets held for sale or exchange and liabilities related to assets held for sale or exchange Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleExplanatory
270 1026 - Disclosure - Inventories Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfInventoriesExplanatory
271 Implied Table Table

*

*

implied:Table
272 Text block1 [abstract] Abstract sny:TextBlock1Abstract
273 Inventories Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfInventoriesExplanatory
274 1027 - Disclosure - Accounts receivable Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfTradeReceivablesExplanatory
275 Implied Table Table

*

*

implied:Table
276 Text block1 [abstract] Abstract sny:TextBlock1Abstract
277 Accounts receivable Concept (Text Block (HTML)) For Period sny:DisclosureOfTradeReceivablesExplanatory
278 1028 - Disclosure - Other current assets Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfOtherCurrentAssetsExplanatory
279 Implied Table Table

*

*

implied:Table
280 Text block1 [abstract] Abstract sny:TextBlock1Abstract
281 Other current assets Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfOtherCurrentAssetsExplanatory
282 1029 - Disclosure - Financial assets and liabilities measured at fair value Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfFinancialAssetsAndLiabilitiesAtFairValueExplanatory
283 Implied Table Table

*

*

implied:Table
284 Text block1 [abstract] Abstract sny:TextBlock1Abstract
285 Financial assets and liabilities measured at fair value Concept (Text Block (HTML)) For Period sny:DisclosureOfFinancialAssetsAndLiabilitiesAtFairValueExplanatory
286 1030 - Disclosure - Cash and cash equivalents Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfCashAndCashEquivalentsExplanatory
287 Implied Table Table

*

*

implied:Table
288 Text block1 [abstract] Abstract sny:TextBlock1Abstract
289 Cash and cash equivalents Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfCashAndCashEquivalentsExplanatory
290 1031 - Disclosure - Net deferred tax position Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfDeferredTaxesExplanatory
291 Implied Table Table

*

*

implied:Table
292 Text block1 [abstract] Abstract sny:TextBlock1Abstract
293 Net deferred tax position Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDeferredTaxesExplanatory
294 1032 - Disclosure - Consolidated shareholders' equity Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory
295 Implied Table Table

*

*

implied:Table
296 Text block1 [abstract] Abstract sny:TextBlock1Abstract
297 Consolidated shareholders' equity Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory
298 1033 - Disclosure - Attributable to non-controlling interests Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfNoncontrollingInterestsExplanatory
299 Implied Table Table

*

*

implied:Table
300 Text block1 [abstract] Abstract sny:TextBlock1Abstract
301 Attributable to non-controlling interests Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfNoncontrollingInterestsExplanatory
302 1034 - Disclosure - Debt, cash and cash equivalents Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfDebtInstrumentsIssuedExplanatory
303 Implied Table Table

*

*

implied:Table
304 Text block1 [abstract] Abstract sny:TextBlock1Abstract
305 Debt, cash and cash equivalents Concept (Text Block (HTML)) For Period sny:DisclosureOfDebtInstrumentsIssuedExplanatory
306 1035 - Disclosure - Liabilities related to business combinations and to non-controlling interests Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfLiabilitiesRelatedToBusinessCombinationAndToNoncontrollingInterestsExplanatory
307 Implied Table Table

*

*

implied:Table
308 Text block1 [abstract] Abstract sny:TextBlock1Abstract
309 Liabilities related to business combinations and to non-controlling interests Concept (Text Block (HTML)) For Period sny:DisclosureOfLiabilitiesRelatedToBusinessCombinationAndToNoncontrollingInterestsExplanatory
310 1036 - Disclosure - Provisions and other liabilities Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfProvisionsAndOtherLiabilitiesExplanatory
311 Implied Table Table

*

*

implied:Table
312 Text block1 [abstract] Abstract sny:TextBlock1Abstract
313 Provisions and other liabilities Concept (Text Block (HTML)) For Period sny:DisclosureOfProvisionsAndOtherLiabilitiesExplanatory
314 1037 - Disclosure - Derivative financial instruments and market risks Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfDerivativeFinancialInstrumentsExplanatory
315 Implied Table Table

*

*

implied:Table
316 Text block1 [abstract] Abstract sny:TextBlock1Abstract
317 Derivative financial instruments and market risks Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDerivativeFinancialInstrumentsExplanatory
318 1038 - Disclosure - Off balance sheet commitments Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfOffbalanceSheetCommitmentsExplanatory
319 Implied Table Table

*

*

implied:Table
320 Text block1 [abstract] Abstract sny:TextBlock1Abstract
321 Off balance sheet commitments Concept (Text Block (HTML)) For Period sny:DisclosureOfOffbalanceSheetCommitmentsExplanatory
322 1039 - Disclosure - Legal and arbitral proceedings Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfLegalAndArbitralProceedingsExplanatory
323 Implied Table Table

*

*

implied:Table
324 Text block1 [abstract] Abstract sny:TextBlock1Abstract
325 Legal and arbitral proceedings Concept (Text Block (HTML)) For Period sny:DisclosureOfLegalAndArbitralProceedingsExplanatory
326 1040 - Disclosure - Provisions for discounts, rebates and sales returns Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfProvisionsForDiscountsRebatesAndSalesReturnsExplanatory
327 Implied Table Table

*

*

implied:Table
328 Text block1 [abstract] Abstract sny:TextBlock1Abstract
329 Provisions for discounts, rebates and sales returns Concept (Text Block (HTML)) For Period sny:DisclosureOfProvisionsForDiscountsRebatesAndSalesReturnsExplanatory
330 1041 - Disclosure - Personnel costs Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfInformationAboutEmployeesExplanatory
331 Implied Table Table

*

*

implied:Table
332 Text block1 [abstract] Abstract sny:TextBlock1Abstract
333 Personnel costs Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfInformationAboutEmployeesExplanatory
334 1042 - Disclosure - Other operating income Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfOtherOperatingIncomeExplanatory
335 Implied Table Table

*

*

implied:Table
336 Text block1 [abstract] Abstract sny:TextBlock1Abstract
337 Other operating income Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfOtherOperatingIncomeExplanatory
338 1043 - Disclosure - Other operating expenses Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfOtherOperatingExpenseExplanatory
339 Implied Table Table

*

*

implied:Table
340 Text block1 [abstract] Abstract sny:TextBlock1Abstract
341 Other operating expenses Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfOtherOperatingExpenseExplanatory
342 1044 - Disclosure - Restructuring costs and similar items Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfRestructuringCostsAndSimilarItemsExplanatory
343 Implied Table Table

*

*

implied:Table
344 Text block1 [abstract] Abstract sny:TextBlock1Abstract
345 Restructuring costs and similar items Concept (Text Block (HTML)) For Period sny:DisclosureOfRestructuringCostsAndSimilarItemsExplanatory
346 1045 - Disclosure - Other gains and losses, and litigation Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfOtherGainsAndLossesAndLitigationExplanatory
347 Implied Table Table

*

*

implied:Table
348 Text block1 [abstract] Abstract sny:TextBlock1Abstract
349 Other gains and losses, and litigation Concept (Text Block (HTML)) For Period sny:DisclosureOfOtherGainsAndLossesAndLitigationExplanatory
350 1046 - Disclosure - Financial expenses and income Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfFinanceIncomeExpenseExplanatory
351 Implied Table Table

*

*

implied:Table
352 Text block1 [abstract] Abstract sny:TextBlock1Abstract
353 Financial expenses and income Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFinanceIncomeExpenseExplanatory
354 1047 - Disclosure - Income tax expense Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfIncomeTaxExplanatory
355 Implied Table Table

*

*

implied:Table
356 Text block1 [abstract] Abstract sny:TextBlock1Abstract
357 Income tax expense Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfIncomeTaxExplanatory
358 1048 - Disclosure - Share of profit loss from investments accounted for using the equity method Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethodExplanatory
359 Implied Table Table

*

*

implied:Table
360 Text block1 [abstract] Abstract sny:TextBlock1Abstract
361 Share of profit loss from investments accounted for using the equity method Concept (Text Block (HTML)) For Period sny:DisclosureOfShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethodExplanatory
362 1049 - Disclosure - Net income attributable to non-controlling interests Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfProfitLossAttributableToNoncontrollingInterestsExplanatory
363 Implied Table Table

*

*

implied:Table
364 Text block1 [abstract] Abstract sny:TextBlock1Abstract
365 Net income attributable to non-controlling interests Concept (Text Block (HTML)) For Period sny:DisclosureOfProfitLossAttributableToNoncontrollingInterestsExplanatory
366 1050 - Disclosure - Related party transactions Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfRelatedPartyExplanatory
367 Implied Table Table

*

*

implied:Table
368 Text block1 [abstract] Abstract sny:TextBlock1Abstract
369 Related party transactions Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfRelatedPartyExplanatory
370 1051 - Disclosure - Disclosures about major customers and credit risk Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfCreditRiskExplanatory
371 Implied Table Table

*

*

implied:Table
372 Text block1 [abstract] Abstract sny:TextBlock1Abstract
373 Disclosures about major customers and credit risk Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfCreditRiskExplanatory
374 1052 - Disclosure - Segment information Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfEntitysReportableSegmentsExplanatory
375 Implied Table Table

*

*

implied:Table
376 Text block1 [abstract] Abstract sny:TextBlock1Abstract
377 Segment information Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfEntitysReportableSegmentsExplanatory
378 1053 - Disclosure - Exchanged/held-for-exchange Animal Health business Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfExchangedOrHeldForExchangeAnimalHealthBusinessExplanatory
379 Implied Table Table

*

*

implied:Table
380 Text block1 [abstract] Abstract sny:TextBlock1Abstract
381 Exchanged/held-for-exchange Animal Health business Concept (Text Block (HTML)) For Period sny:DisclosureOfExchangedOrHeldForExchangeAnimalHealthBusinessExplanatory
382 1054 - Disclosure - Principal accountants' fees and services Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfAuditorsRemunerationExplanatory
383 Implied Table Table

*

*

implied:Table
384 Text block1 [abstract] Abstract sny:TextBlock1Abstract
385 Principal accountants' fees and services Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfAuditorsRemunerationExplanatory
386 1055 - Disclosure - List of principal companies included in the consolidation scope during 2018 Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfSignificantInvestmentsInSubsidiariesExplanatory
387 Implied Table Table

*

*

implied:Table
388 Text block1 [abstract] Abstract sny:TextBlock1Abstract
389 List of principal companies included in the consolidation scope during 2018 Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesExplanatory
390 1056 - Disclosure - Events subsequent to December 31, 2018 Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfEventsAfterReportingPeriodExplanatory
391 Implied Table Table

*

*

implied:Table
392 Text block1 [abstract] Abstract sny:TextBlock1Abstract
393 Events subsequent to December 31, 2018 Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfEventsAfterReportingPeriodExplanatory
394 1057 - Disclosure - Summary of significant accounting policies (Policies) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfSummaryOfSignificantAccountingPoliciesExplanatoryPolicies
395 Implied Table Table

*

*

implied:Table
396 Text block1 [abstract] Abstract sny:TextBlock1Abstract
397 Basis of consolidation Concept (Text Block (HTML)) For Period sny:DescriptionOfAccountingPolicyForBasisOfConsolidationExplanatory
398 Foreign currency translation Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatory
399 Business combinations and transactions with non-controlling interests Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForBusinessCombinationsAndGoodwillExplanatory
400 Other intangible assets Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForIntangibleAssetsOtherThanGoodwillExplanatory
401 Property, plant and equipment Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory
402 Impairment of property, plant and equipment, intangible assets, and investments accounted for using the equity method Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForImpairmentOfAssetsExplanatory
403 Assets held for sale or exchange and liabilities related to assets held for sale or exchange Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleAndDiscontinuedOperationsExplanatory
404 Financial instruments Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForFinancialInstrumentsExplanatory
405 Inventories Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForMeasuringInventories
406 Cash and cash equivalents Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyToDetermineComponentsOfCashAndCashEquivalents
407 Treasury shares Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForTreasurySharesExplanatory
408 Provisions for risks Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForProvisionsExplanatory
409 Revenue recognition Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForRecognitionOfRevenue
410 Cost of sales Concept (Text Block (HTML)) For Period sny:DescriptionOfAccountingPolicyForCostOfSalesExplanatory
411 Research and development Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForResearchAndDevelopmentExpenseExplanatory
412 Other operating income and expenses Concept (Text Block (HTML)) For Period sny:DescriptionOfAccountingPolicyForOtherOperatingIncomeAndExpensesExplanatory
413 Amortization and impairment of intangible assets Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForIntangibleAssetsAndGoodwillExplanatory
414 Fair value remeasurement of contingent Consideration Concept (Text Block (HTML)) For Period sny:DescriptionOfAccountingPolicyForFairValueReMeasurementOfContingentConsiderationLiabilitiesExplanatory
415 Restructuring costs and similar items Concept (Text Block (HTML)) For Period sny:DescriptionOfAccountingPolicyForRestructuringCostsAndSimilarItemsExplanatory
416 Other gains and losses, and litigation Concept (Text Block (HTML)) For Period sny:DescriptionOfAccountingPolicyForOtherGainsAndLossesAndLitigationExplanatory
417 Financial expenses and income Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForFinanceIncomeAndCostsExplanatory
418 Income tax expense Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForIncomeTaxExplanatory
419 Employee benefit obligations Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForEmployeeBenefitsExplanatory
420 Share-based payment Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForSharebasedPaymentTransactionsExplanatory
421 Earnings per share Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForEarningsPerShareExplanatory
422 Segment information Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForSegmentReportingExplanatory
423 Management of capital Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForIssuedCapitalExplanatory
424 1058 - Disclosure - New standards, amendments and interpretations (Tables) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfChangesInAccountingPoliciesAccountingEstimatesAndErrorsExplanatoryTables
425 Implied Table Table

*

*

implied:Table
426 Text block1 [abstract] Abstract sny:TextBlock1Abstract
427 Summary of Impacts on Consolidated Balance Sheet Concept (Text Block (HTML)) For Period sny:DisclosureOfImpactsOfIFRS15OnConsolidatedBalanceSheetItemsExplanatory
428 Summary of Impacts on Consolidated Income Statement Concept (Text Block (HTML)) For Period sny:DisclosureOfImpactsOfIFRS15OnConsolidatedIncomeStatementItems
429 Summary of Reclassification and Impacts of Financial Assets Concept (Text Block (HTML)) For Period sny:DisclosureOfImpactsOfIFRS9OnClassificationOfFinancialAssetsExplanatory
430 1059 - Disclosure - Summary of significant accounting policies (Tables) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfSummaryOfSignificantAccountingPoliciesExplanatoryTables
431 Implied Table Table

*

*

implied:Table
432 Text block1 [abstract] Abstract sny:TextBlock1Abstract
433 Summary of Useful Lives of Property, Plant and Equipment Concept (Text Block (HTML)) For Period sny:DisclosureOfEstimatedUsefulLivesOfPropertyPlantAndEquipmentExplanatory
434 1060 - Disclosure - Changes in the scope of consolidation due to acquisitions and divestments (Tables) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfImpactOfChangesInTheScopeOfConsolidationDueToAcquisitionsAndDivestmentsExplanatoryTables
435 Statement [Table] Table

*

*

us-gaap:StatementTable
436 Business Combinations [Axis] Axis ifrs-full:BusinessCombinationsAxis
437 Entity's total for business combinations [member] Member ifrs-full:EntitysTotalForBusinessCombinationsMember
438 Bioverativ [member] Member sny:BioverativMember
439 Ablynx N.V [member] Member sny:AblynxMember
440 Regeneron Pharmaceuticals, Inc. [member] Member sny:RegeneronPharmaceuticalsIncMember
441 Protein Sciences [member] Member sny:ProteinSciencesMember
442 European Vaccines business previously included in the Sanofi Pasteur MSD joint venture [member] Member sny:EuropeanVaccineBusinessOfSPMSDMember
443 European Generics Business [member] Member sny:EuropeanGenericsBusinessMember
444 Statement [Line Items] LineItems us-gaap:StatementLineItems
445 Summary of Final Purchase Price Allocation Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfBusinessCombinationsExplanatory
446 Summary of Assets and Liabilities Divested Concept (Text Block (HTML)) For Period sny:DisclosureOfDivestmentTransactionsExplanatory
447 Summary of Changes in Equity Interest Held Concept (Text Block (HTML)) For Period sny:DisclosureOfChangesInEquityInterestExplanatory
448 Summary of Final Purchase Price Allocation Concept (Text Block (HTML)) For Period sny:DisclosureOfDetailedInformationAboutGoodwillRecognizedOnBusinessCombinationExplanatory
449 1061 - Disclosure - Property, plant and equipment (Tables) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfPropertyPlantAndEquipmentExplanatoryTables
450 Implied Table Table

*

*

implied:Table
451 Text block1 [abstract] Abstract sny:TextBlock1Abstract
452 Schedule of Property, Plant and Equipment (Including Assets Held Under Finance Leases) Concept (Text Block (HTML)) For Period sny:DisclosureOfChangesInPropertyPlantAndEquipmentExplanatory
453 Summary of Acquisitions and Capitalized Interest by Operating Segment Concept (Text Block (HTML)) For Period sny:DisclosureOfAcquisitionsOfPropertyPlantAndEquipmentByOperatingSegmentsExplanatoryTextBlock
454 Summary of Off Balance Sheet Commitments Relating to Property, Plant and Equipment Concept (Text Block (HTML)) For Period sny:DisclosureOfOffbalanceSheetCommitmentsOfPropertyPlantAndEquipmentExplanatory
455 Summary of Impairment Losses Recognised in Property, Plant and Equipment Concept (Text Block (HTML)) For Period sny:DisclosureOfImpairmentLossesOfPropertyPlantAndEquipmentExplanatory
456 Schedule of Amounts for Items of Property, Plant and Equipment Held under Finance Leases Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfRecognisedFinanceLeaseAsAssetsByLesseeExplanatory
457 Summary of Future Minimum Lease Payments Due Under Finance Lease Concept (Text Block (HTML)) For Period sny:DisclosureOfFutureMinimumLeasePaymentForFinanceLeaseCommitmentExplanatory
458 Schedule of Future Minimum Lease Payment Schedule Concept (Text Block (HTML)) For Period sny:DisclosureOfFinanceLeaseObligationsExplanatory
459 1062 - Disclosure - Goodwill and other intangible assets (Tables) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfIntangibleAssetsAndGoodwillExplanatoryTables
460 Implied Table Table

*

*

implied:Table
461 Text block1 [abstract] Abstract sny:TextBlock1Abstract
462 Schedule of Movements in Goodwill Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfReconciliationOfChangesInGoodwillExplanatory
463 Schedule of Movements in Other Intangible Assets Concept (Text Block (HTML)) For Period sny:DisclosureOfReconciliationOfChangesInOtherIntangibleAssetsExplanatory
464 Detailed Information for Principal Marketed Products Concept (Text Block (HTML)) For Period sny:DisclosureOfPrincipalMarketedProductsExplanatory
465 Amortization of Softwares Recognized in Income Statement Concept (Text Block (HTML)) For Period sny:DisclosureOfAmortizationOfSoftwareAndOtherRightsByIncomeStatementLineExplanatory
466 1063 - Disclosure - Impairment of intangible assets and property, plant and equipment (Tables) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfImpairmentOfIntangibleAssetsAndPropertyPlantAndEquipmentExplanatoryTables
467 Implied Table Table

*

*

implied:Table
468 Text block1 [abstract] Abstract sny:TextBlock1Abstract
469 Schedule of Allocation of Goodwill Concept (Text Block (HTML)) For Period sny:DisclosureOfGoodwillByOperatingSegmentsExplanatory
470 Summary of Net Impairment Losses of Other Intangible Assets Concept (Text Block (HTML)) For Period sny:DisclosureOfImpairmentLossesOfOtherIntangibleAssetsExplanatory
471 1064 - Disclosure - Investments accounted for using the equity method (Tables) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfInvestmentsAccountedForUsingEquityMethodExplanatoryTables
472 Implied Table Table

*

*

implied:Table
473 Text block1 [abstract] Abstract sny:TextBlock1Abstract
474 Summary of Investments in Associates and Joint Ventures Concept (Text Block (HTML)) For Period sny:DisclosureOfInvestmentsInAssociatesAndJointVenturesExplanatory
475 Summary of Share of Profit or Loss and Other Comprehensive Income of Associates and Joint Ventures Concept (Text Block (HTML)) For Period sny:DisclosureOfProfitOrLossAndOtherComprehensiveIncomeOfAssociatesAndJointVenturesExplanatory
476 Summary of Principal Transactions and Balances with Related Parties Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesExplanatory
477 Summary of Financial Statements of Regeneron, After Adjustments to Comply With IFRS But Before Fair Value Remeasurements Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfSignificantInvestmentsInAssociatesExplanatory
478 Disclosure of Associates Balance Sheet Lines Concept (Text Block (HTML)) For Period sny:DisclosureOfSignificantInvestmentsInAssociatesTwoExplanatory
479 Summary of Reconciliation to Carrying Amount of Investment Concept (Text Block (HTML)) For Period sny:DisclosureOfReconciliationToCarryingAmountOfInvestmentExplanatory
480 Summary of Market Value of Sanofi's Investment in Regeneron Based on Quoted Stock Market Price Per Share Concept (Text Block (HTML)) For Period sny:DisclosureOfMarketPricesOfInvestmentsAccountedForUsingEquityMethodExplanatory
481 1065 - Disclosure - Other non-current assets (Tables) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfOtherNoncurrentAssetsExplanatoryTables
482 Implied Table Table

*

*

implied:Table
483 Text block1 [abstract] Abstract sny:TextBlock1Abstract
484 Summary of Other Non-current Assets Concept (Text Block (HTML)) For Period sny:DisclosureOfComponentsOfOtherNoncurrentAssetsExplanatory
485 1066 - Disclosure - Assets held for sale or exchange and liabilities related to assets held for sale or exchange (Tables) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleExplanatoryTables
486 Implied Table Table

*

*

implied:Table
487 Text block1 [abstract] Abstract sny:TextBlock1Abstract
488 Summary of Assets Held for Sale or Exchange, and Liabilities Related to Assets Held for Sale or Exchange Concept (Text Block (HTML)) For Period sny:DisclosureOfAssetsHeldForSaleOrExchangeAndRelatedLiabilitiesExplanatory
489 1067 - Disclosure - Inventories (Tables) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfInventoriesExplanatoryTables
490 Implied Table Table

*

*

implied:Table
491 Text block1 [abstract] Abstract sny:TextBlock1Abstract
492 Schedule of Inventories Concept (Text Block (HTML)) For Period sny:DisclosureOfDetailedInformationAboutInventoriesExplanatory
493 1068 - Disclosure - Accounts receivable (Tables) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfTradeReceivablesExplanatoryTables
494 Implied Table Table

*

*

implied:Table
495 Text block1 [abstract] Abstract sny:TextBlock1Abstract
496 Summary of Accounts Receivable Concept (Text Block (HTML)) For Period sny:DisclosureOfCurrentTradeReceivablesExplanatory
497 Summary of Gross Value of Overdue Receivables Concept (Text Block (HTML)) For Period sny:DisclosureOfOverdueReceivablesGrossValueExplanatory
498 1069 - Disclosure - Other current assets (Tables) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfOtherCurrentAssetsExplanatoryTables
499 Implied Table Table

*

*

implied:Table
500 Text block1 [abstract] Abstract sny:TextBlock1Abstract
501 Schedule of Other Current Assets Concept (Text Block (HTML)) For Period sny:DisclosureOfDetailedInformationOfOtherCurrentAssetsExplanatory
502 1070 - Disclosure - Financial assets and liabilities measured at fair value (Tables) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfFinancialAssetsAndLiabilitiesAtFairValueExplanatoryTables
503 Implied Table Table

*

*

implied:Table
504 Text block1 [abstract] Abstract sny:TextBlock1Abstract
505 Summary of Assets and Liabilities Measured at Fair Value Concept (Text Block (HTML)) For Period sny:DisclosureOfFairValueOfFinancialAssetsAndLiabilitiesExplanatory
506 1071 - Disclosure - Cash and cash equivalents (Tables) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfCashAndCashEquivalentsExplanatoryTables
507 Implied Table Table

*

*

implied:Table
508 Text block1 [abstract] Abstract sny:TextBlock1Abstract
509 Summary of Cash and Cash Equivalents Concept (Text Block (HTML)) For Period sny:DisclosureOfCashAndCashEquivalentsDetailsExplanatory
510 1072 - Disclosure - Net deferred tax position (Tables) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfDeferredTaxesExplanatoryTables
511 Implied Table Table

*

*

implied:Table
512 Text block1 [abstract] Abstract sny:TextBlock1Abstract
513 Summary of Net Deferred Tax Position Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsExplanatory
514 Summary of Tax Losses Available for Carry-forward Concept (Text Block (HTML)) For Period sny:DisclosureOfAvailabilityOfTaxLossesCarryForwardsExplanatory
515 1073 - Disclosure - Consolidated shareholders' equity (Tables) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatoryTables
516 Implied Table Table

*

*

implied:Table
517 Text block1 [abstract] Abstract sny:TextBlock1Abstract
518 Summary of Treasury Shares Held Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfClassesOfShareCapitalExplanatory
519 Summary of Movements Share Capital Concept (Text Block (HTML)) For Period sny:DisclosureOfStatementOfChangesInEquityOfParentExplanatory
520 Principal Characteristics of Restricted Share Plans Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementExplanatory
521 Summary of Number of Restricted Shares Not Yet Fully Vested Concept (Text Block (HTML)) For Period sny:DisclosureOfNumberOfRestrictedSharePlansNotYetFullyVestedExplanatory
522 Summary of Characteristics of Employee Share Ownership Plans Awarded Concept (Text Block (HTML)) For Period sny:DisclosureOfEmployeeStockOwnershipPlanAwardedInCapitalIncreaseReservedExplanatoryTextBlock
523 Summary of Expenses Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfExpensesByNatureExplanatory
524 Summary of Repurchases program Concept (Text Block (HTML)) For Period sny:DisclosureOfShareRepurchaseProgramExplanatory
525 Summary of Currency Translation Differences Concept (Text Block (HTML)) For Period sny:DisclosureOfReserveOfExchangeDifferencesOnTranslationExplanatory
526 Summary of Movements within Other Comprehensive Income Concept (Text Block (HTML)) For Period sny:DisclosureOfAccumulatedOtherComprehensiveIncomeExplanatory
527 Summary of Stock Option Plans Awarded and Measurement of Stock Option Plans Concept (Text Block (HTML)) For Period sny:DisclosureOfStockOptionPlansAwardedAndMeasurementOfPlansExplanatory
528 Summary of Expense Recognized Through Equity for Stock Option Plans Concept (Text Block (HTML)) For Period sny:DisclosureOfExpenseRecognizedThroughEquityForStockOptionPlansExplanatory
529 Summary of Stock Purchase Option Plan Still Outstanding Concept (Text Block (HTML)) For Period sny:DisclosureOfStockPurchaseOptionPlansStillOutstandingExplanatory
530 Disclosure of Stock Subscription Option Plan Outstanding and Option Exercised Concept (Text Block (HTML)) For Period sny:DisclosureOfStockSubscriptionOptionPlansUnderWhichOptionsWereExercisedInTheYearExplanatory
531 Summary of Stock Options Outstanding at Each Balance Sheet Date Concept (Text Block (HTML)) For Period sny:DisclosureOfStockOptionsOutstandingAtEachBalanceSheetDateAndOfChangesDuringTheRelevantPeriodsExplanatory
532 Summary of Options Outstanding and Exercisable Concept (Text Block (HTML)) For Period sny:DisclosureOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeExplanatory
533 Summary of Number of Shares Used to Compute Diluted Earnings Per Share Concept (Text Block (HTML)) For Period sny:DisclosureOfSharesUsedToComputeDilutedEarningsPerShareExplanatory
534 1074 - Disclosure - Debt, cash and cash equivalents (Tables) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfDebtInstrumentsIssuedExplanatoryTables
535 Implied Table Table

*

*

implied:Table
536 Text block1 [abstract] Abstract sny:TextBlock1Abstract
537 Summary of Changes in Financial Position Concept (Text Block (HTML)) For Period sny:DisclosureOfChangesInFinancialPositionExplanatory
538 Summary of Reconciliation of Carrying Amount to Value on Redemption Concept (Text Block (HTML)) For Period sny:DisclosureOfReconciliationOfCarryingAmountToValueOnRedemptionExplanatory
539 Disclosure of Movement in Total Debt Concept (Text Block (HTML)) For Period sny:DisclosureOfDebtsExplanatory
540 Summary of Debt by Type Valuation of Redemption Concept (Text Block (HTML)) For Period sny:DisclosureOfDebtNetOfCashAndCashEquivalentsByTypeAtValueOnRedemptionExplanatory
541 Summary of Bond Issues Concept (Text Block (HTML)) For Period sny:DisclosureOfDetailOfBondsIssuedExplanatory
542 Summary of Debt by Maturity at Value on Redemption Concept (Text Block (HTML)) For Period sny:DisclosureOfDebtByMaturityAtValueOfRedemptionExplanatory
543 Summary of Debt by Interest Rate Concept (Text Block (HTML)) For Period sny:DisclosureOfDebtByInterestRateAtValueOfRedemptionAndByMaturityExplanatory
544 Summary of Interest Rate of Net Debt at Value on Redemption Concept (Text Block (HTML)) For Period sny:DisclosureOfDebtByInterestRateAtValueOfRedemptionAfterTakingAccountOfDerivativeInstrumentsN1N2Explanatory
545 Summary of Interest Rate Fluctuations of Debt Net of Cash and Cash Equivalents Concept (Text Block (HTML)) For Period sny:DisclosureOfSensitivityAnalysisOnLongtermBorrowingsAndDebtSecuritiesAssumingIncreaseAndDecreaseInInterestRatesExplanatory
546 Summary of Debt by Currency Concept (Text Block (HTML)) For Period sny:DisclosureOfDebtByCurrencyAtValueOfRedemptionBeforeAndAfterDerivativeInstrumentsExplanatory
547 Summary of Debt by Currency Concept (Text Block (HTML)) For Period sny:DisclosureOfDebtByCurrencyAtValueOfRedemptionAfterDerivativeInstrumentsN1N2Explanatory
548 Summary of Market Value of Net Debt Concept (Text Block (HTML)) For Period sny:DisclosureOfMarketValueOfNetDebtExplanatory
549 Amount of Future Undiscounted Contractual Cash Flows Relating to Debt and Derivative Instruments Designated as Hedges of Debt Concept (Text Block (HTML)) For Period sny:DisclosureOfMaturityAnalysisOfFutureUndiscountedCashFlowsExplanatory
550 1075 - Disclosure - Liabilities related to business combinations and to non-controlling interests (Tables) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfLiabilitiesRelatedToBusinessCombinationAndToNoncontrollingInterestsExplanatoryTables
551 Implied Table Table

*

*

implied:Table
552 Text block1 [abstract] Abstract sny:TextBlock1Abstract
553 Summary of Movements in Liabilities Related to Business Combinations and to Non-Controlling Interests Concept (Text Block (HTML)) For Period sny:DisclosureOfChangesInLiabilitiesRelatedToBusinessCombinationsAndToNoncontrollingInterestsExplanatory
554 Summary of Maximum Amount of Contingent Consideration Payable and Firm Commitments to Buy Out Non-Controlling Interests Concept (Text Block (HTML)) For Period sny:DisclosureOfMaximumAmountOfContingentConsiderationPayableAndFirmCommitmentsToBuyOutNoncontrollingInterestsExplanatory
555 1076 - Disclosure - Provisions and other liabilities (Tables) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfProvisionsAndOtherLiabilitiesExplanatoryTables
556 Implied Table Table

*

*

implied:Table
557 Text block1 [abstract] Abstract sny:TextBlock1Abstract
558 Summary of Non Current Provisions and Other Non-current Liabilities Concept (Text Block (HTML)) For Period sny:DisclosureOfProvisionsAndOtherNonCurrentLiabilitiesExplanatory
559 Summary of Movements in Non-current Provisions Concept (Text Block (HTML)) For Period sny:DisclosureOfNoncurrentProvisionsExplanatory
560 Summary of Financial and Demographic Assumptions Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDefinedBenefitPlansExplanatory
561 Summary of Weighted Average Duration of Obligation for Pensions and Other Long-term Benefits in Principal Countries Concept (Text Block (HTML)) For Period sny:DisclosureOfWeightedAverageDurationOfDefinedBenefitObligationExplanatory
562 Summary of Sensitivity for Pensions and Other Post-employment Benefits to Changes in Key Actuarial Assumptions Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfSensitivityAnalysisForActuarialAssumptionsExplanatory
563 Reconciliation of Net Obligation in Respect of Sanofi's Pension and Other Post-Employment Benefit Plans Concept (Text Block (HTML)) For Period sny:DisclosureOfNetDefinedBenefitLiabilityAssetsExplanatory
564 Net Liability in Respect of Pension Plans and Other Post-employment Benefits by Geographical Region Concept (Text Block (HTML)) For Period sny:DisclosureOfNetLiabilityInRespectOfPensionPlansAndOtherPostemploymentBenefitsByGeographicalRegionExplanatory
565 Fair Value of Plans Assets relating to Pension Plans and Other Post-employment Plans Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFairValueOfPlanAssetsExplanatory
566 Service Cost for Pension and Other post-employment Benefit Plans, by Geographical Region Concept (Text Block (HTML)) For Period sny:DisclosureOfServiceCostsOfNetDefinedBenefitsByCountryExplanatory
567 Remeasurement of Net Defined-benefit (Asset)/Liability (Actuarial Gains and Losses) Concept (Text Block (HTML)) For Period sny:DisclosureOfRemeasuresmentOfNetDefinedBenefitLiabilityAssetByCountryExplanatory
568 Summary of Net Pre-tax Actuarial Loss Concept (Text Block (HTML)) For Period sny:DisclosureOfPreTaxActuarialLossExplanatory
569 Summary of Present Value of Pension and Other Post Employement Benefits Concept (Text Block (HTML)) For Period sny:DisclosureOfPensionAndOtherPostEmploymentBenefitExpenseExplanatory
570 Total Expense for Pensions and Other Post-employment Benefits Allocated between Income Statement Line Items Concept (Text Block (HTML)) For Period sny:DisclosureOfExpenseForPensionsAndOtherPostEmploymentBenefitsByIncomeStatementLineExplanatory
571 Estimated Amounts of Employer's Contributions to Plan Assets Concept (Text Block (HTML)) For Period sny:DisclosureOfEstimatedAmountsOfEmployerContributionsToPlanAssetsExplanatory
572 Expected Timing of Benefit Payments under Pension and Other Post-employment Benefit Plans Concept (Text Block (HTML)) For Period sny:DisclosureOfExpectedTimingOfPaymentsUnderPensionAndOtherPostEmploymentBenefitPlansExplanatory
573 Timing of Future Payments in Respect of Unfunded Pension and Other Post-employment Benefit Plans Concept (Text Block (HTML)) For Period sny:DisclosureOfExpectedTimingOfPaymentsInRespectOfUnfundedPensionAndOtherPostEmploymentBenefitPlansExplanatory
574 Movements in Restructuring Provisions Classified in Non-current and Current Liabilities Concept (Text Block (HTML)) For Period sny:DisclosureOfRestructuringProvisionsExplanatory
575 Timing of Future Termination Benefit Payments Concept (Text Block (HTML)) For Period sny:DisclosureOfFutureBenefitPaymentsExplanatory
576 Summary of Other Provisions Concept (Text Block (HTML)) For Period sny:DisclosureOfOtherLongTermProvisionsExplanatory
577 Other Non-Current Liabilities Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfOtherNoncurrentLiabilitiesExplanatory
578 Current Provisions and Other Current Liabilities Concept (Text Block (HTML)) For Period sny:DisclosureOfCurrentProvisionsAndOtherCurrentLiabilitiesExplanatory
579 1077 - Disclosure - Derivative financial instruments and market risks (Tables) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfDerivativeFinancialInstrumentsExplanatoryTables
580 Implied Table Table

*

*

implied:Table
581 Text block1 [abstract] Abstract sny:TextBlock1Abstract
582 Summary of Fair Value of Derivative Instruments Concept (Text Block (HTML)) For Period sny:DisclosureOfFairValueOfDerivativeInstrumentsExplanatory
583 Summary of Operating Currency Hedging Instruments Concept (Text Block (HTML)) For Period sny:DisclosureOfOperatingCurrencyHedgingInstrumentsWithNotionalAmountTranslatedInToEurosAtClosingExchangeRateExplanatory
584 Disclosure of Financial Currency Hedging Instruments in Place with Notional Amount Translated Concept (Text Block (HTML)) For Period sny:DisclosureOfFinancialCurrencyHedgingInstrumentsWithNotionalAmountTranslatedInToEurosAtClosingExchangeRateExplanatory
585 Disclosure of Instruments Concept (Text Block (HTML)) For Period sny:DisclosureOfInterestRatesHedgingInstrumentsWithNotionalAmountByExpiryDateExplanatory
586 Disclosure of Actual or Potential Effects of Netting Arrangements Concept (Text Block (HTML)) For Period sny:DisclosureOfActualOrPotentialEffectsOfNettingArrangementsExplanatory
587 1078 - Disclosure - Off balance sheet commitments (Tables) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfOffbalanceSheetCommitmentsExplanatoryTables
588 Implied Table Table

*

*

implied:Table
589 Text block1 [abstract] Abstract sny:TextBlock1Abstract
590 Summary of Off Balance Sheet Commitments Relating to Operating Activities Concept (Text Block (HTML)) For Period sny:DisclosureOfOffBalanceSheetCommitmentsRelatingToOperatingActivitiesExplanatory
591 Summary of Future Minimum Lease Payments Due Under Non-cancelable Leases and Rental Expense Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeExplanatory
592 Summary of Undrawn Credit Facilities Concept (Text Block (HTML)) For Period sny:DisclosureOfUndrawnBorrowingFacilitiesExplanatory
593 Summary of Amount of Guarantees Given and Received Concept (Text Block (HTML)) For Period sny:DisclosureOfGuaranteesGivenAndReceivedExplanatory
594 1079 - Disclosure - Provisions for discounts, rebates and sales returns (Tables) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfProvisionsForDiscountsRebatesAndSalesReturnsExplanatoryTables
595 Implied Table Table

*

*

implied:Table
596 Text block1 [abstract] Abstract sny:TextBlock1Abstract
597 Summary of Movement in Provisions for Discounts, Rebates and Sales Returns Concept (Text Block (HTML)) For Period sny:DisclosureOfChangesInProvisionsForDiscountsRebatesAndSalesReturnsExplanatory
598 1080 - Disclosure - Personnel costs (Tables) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfInformationAboutEmployeesExplanatoryTables
599 Implied Table Table

*

*

implied:Table
600 Text block1 [abstract] Abstract sny:TextBlock1Abstract
601 Summary of Personal Costs Concept (Text Block (HTML)) For Period sny:DisclosureOfPersonnelCostsDetailsExplanatory
602 Summary of Employee Numbers by Function Concept (Text Block (HTML)) For Period sny:DisclosureOfEmployeesNumberByFunctionExplanatory
603 1081 - Disclosure - Restructuring costs and similar items (Tables) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfRestructuringCostsAndSimilarItemsExplanatoryTables
604 Implied Table Table

*

*

implied:Table
605 Text block1 [abstract] Abstract sny:TextBlock1Abstract
606 Summary of Restructuring Costs and Similar Items Concept (Text Block (HTML)) For Period sny:DisclosureOfRestructuringCostsDetailsExplanatory
607 1082 - Disclosure - Financial expenses and income (Tables) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfFinanceIncomeExpenseExplanatoryTables
608 Implied Table Table

*

*

implied:Table
609 Text block1 [abstract] Abstract sny:TextBlock1Abstract
610 Summary of Analysis of Financial Income and Expenses Concept (Text Block (HTML)) For Period sny:DisclosureOfFinancialIncomeAndExpensesExplanatory
611 1083 - Disclosure - Income tax expense (Tables) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfIncomeTaxExplanatoryTables
612 Implied Table Table

*

*

implied:Table
613 Text block1 [abstract] Abstract sny:TextBlock1Abstract
614 Summary of Allocation of Income Tax Expense Between Current and Deferred Taxes Concept (Text Block (HTML)) For Period sny:DisclosureOfAllocationOfIncomeTaxBetweenCurrentAndDeferredTaxesExplanatory
615 Summary of Difference Between Effective Tax Rate and Standard Corporate Income Tax Rate Concept (Text Block (HTML)) For Period sny:DisclosureOfReconciliationOfAverageEffectiveTaxRateAndApplicableTaxRateExplanatory
616 1084 - Disclosure - Share of profit loss from investments accounted for using the equity method (Tables) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethodExplanatoryTables
617 Implied Table Table

*

*

implied:Table
618 Text block1 [abstract] Abstract sny:TextBlock1Abstract
619 Summary of Share of Profit/Loss from Investments Accounted for Using Equity Method Concept (Text Block (HTML)) For Period sny:DisclosureOfShareOfProfitOrLossOfEntitiesAccountedForUsingEquityMethodExplanatory
620 1085 - Disclosure - Net income attributable to non-controlling interests (Tables) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfProfitLossAttributableToNoncontrollingInterestsExplanatoryTables
621 Implied Table Table

*

*

implied:Table
622 Text block1 [abstract] Abstract sny:TextBlock1Abstract
623 Summary of Trends in Net Income Attributable to Non-Controlling Interests Concept (Text Block (HTML)) For Period sny:DisclosureOfInformationAboutTheAmountsAttributableToNonControllingInterestsExplanatory
624 1086 - Disclosure - Related party transactions (Tables) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfRelatedPartyExplanatoryTables
625 Implied Table Table

*

*

implied:Table
626 Text block1 [abstract] Abstract sny:TextBlock1Abstract
627 Schedule of Compensation Paid to Key Management Personnel Concept (Text Block (HTML)) For Period sny:DisclosureOfCompensationPaidToKeyManagementPersonnelExplanatory
628 Summary of aggregate amounts Payable to Key Management Personnel Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfAmountsIncurredByEntityForProvisionOfKeyManagementPersonnelServicesProvidedBySeparateManagementEntitiesExplanatory
629 1087 - Disclosure - Segment information (Tables) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfEntitysReportableSegmentsExplanatoryTables
630 Implied Table Table

*

*

implied:Table
631 Text block1 [abstract] Abstract sny:TextBlock1Abstract
632 Summary of Net Sales by Segment and Geographical Area Concept (Text Block (HTML)) For Period sny:DisclosureOfNetSalesBySegmentAndGeographicalAreaExplanatory
633 Schedule of Segment Results Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfOperatingSegmentsExplanatory
634 Schedule of Reconciliation Between Business Operating Income for the Segments and Income Before Tax and Investments Accounted for Using the Equity Method Concept (Text Block (HTML)) For Period sny:DisclosureOfOperatingSegmentsReconcilingItemsExplanatory
635 Schedule of Acquisition of Intangible Assets, Property, Plant and Equipment and Investments Accounted for Using the Equity Method by Segment Concept (Text Block (HTML)) For Period sny:DisclosureOfAcquisitionsOfPropertyPlantAndEquipmentAndOtherIntangibleAssetsAndCarryingAmountOfInvestmentsInAssociatesAndJointVenturesByOperatingSegmentExplanatory
636 Summary of Geographical Information on Net Sales and Non-Current Assets Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfGeographicalAreasExplanatory
637 1088 - Disclosure - Exchanged/held-for-exchange Animal Health business (Tables) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfExchangedOrHeldForExchangeAnimalHealthBusinessExplanatoryTables
638 Implied Table Table

*

*

implied:Table
639 Text block1 [abstract] Abstract sny:TextBlock1Abstract
640 Summary of Assets and Liabilities Held for Sale or Exchange Concept (Text Block (HTML)) For Period sny:DisclosureOfAssetsHeldForSaleOrExchangeAndLiabilitiesRelatedToAssetsHeldForSaleOrExchangeExplanatory
641 Summary of Net Income/(Loss) of Held-for-Exchange Animal Health Business Concept (Text Block (HTML)) For Period sny:DisclosureOfProfitLossFromDiscontinuedOperationsExplanatory
642 Summary of Basic and Diluted Earnings Per Share for Held-for-Exchange Animal Health Business Concept (Text Block (HTML)) For Period sny:DisclosureOfEarningsPerShareFromDiscontinuedOperationsExplanatory
643 1089 - Disclosure - Principal accountants' fees and services (Tables) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfAuditorsRemunerationExplanatoryTables
644 Implied Table Table

*

*

implied:Table
645 Text block1 [abstract] Abstract sny:TextBlock1Abstract
646 Disclosure of Accountants' Fees and Services Concept (Text Block (HTML)) For Period sny:AuditorsRemunerationTableTextBlock
647 1090 - Disclosure - List of principal companies included in the consolidation scope during 2018 (Tables) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfSignificantInvestmentsInSubsidiariesExplanatoryTables
648 Implied Table Table

*

*

implied:Table
649 Text block1 [abstract] Abstract sny:TextBlock1Abstract
650 Summary of Principal Companies and Their Country of Incorporation Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfInterestsInSubsidiariesExplanatory
651 Summary of Principal Investments Accounted for Using the Equity Method Concept (Text Block (HTML)) For Period sny:DisclosureOfInvestmentsInSubsidiariesExplanatory
652 1091 - Disclosure - New Standards, Amendments and Interpretations - Summary of Impacts on Consolidated Balance Sheet (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureNewStandardsAmendmentsAndInterpretationsSummaryOfImpactsOnConsolidatedBalanceSheet
653 Disclosure of impacts of IFRS 15 on consolidated balance sheet [Table] Table

*

*

sny:DisclosureOfImpactsOfIFRS15OnConsolidatedBalanceSheetTable
654 Retrospective application and retrospective restatement [axis] Axis ifrs-full:RetrospectiveApplicationAndRetrospectiveRestatementAxis
655 Currently stated [member] Member ifrs-full:RestatedMember
656 Previously stated [member] Member ifrs-full:PreviouslyStatedMember
657 Impact of IFRS15 [member] Member sny:IncreaseDecreaseDueToChangesInAccountingPolicyRequiredByIFRS15Member
658 Including Impact of IFRS15 [member] Member sny:IncludingImpactOfIFRS15Member
659 Disclosure of impacts of IFRS 15 on consolidated balance sheet [Line Items] LineItems sny:DisclosureOfImpactsOfIFRS15OnConsolidatedBalanceSheetLineItems
660 Investments accounted for using the equity method Concept (Monetary) As Of Debit ifrs-full:InvestmentAccountedForUsingEquityMethod
661 Deferred tax assets Concept (Monetary) As Of Debit ifrs-full:DeferredTaxAssets
662 Non-current assets Concept (Monetary) As Of Debit ifrs-full:NoncurrentAssets
663 Inventories Concept (Monetary) As Of Debit ifrs-full:Inventories
664 Current assets Concept (Monetary) As Of Debit ifrs-full:CurrentAssetsOtherThanAssetsOrDisposalGroupsClassifiedAsHeldForSaleOrAsHeldForDistributionToOwners
665 Total assets Concept (Monetary) As Of Debit ifrs-full:Assets
666 Equity attributable to equity holders of Sanofi Concept (Monetary) As Of Credit ifrs-full:EquityAttributableToOwnersOfParent
667 Total equity Concept (Monetary) As Of Credit ifrs-full:Equity
668 Other current liabilities Concept (Monetary) As Of Credit ifrs-full:OtherCurrentLiabilities
669 Current liabilities Concept (Monetary) As Of Credit ifrs-full:CurrentLiabilitiesOtherThanLiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSale
670 Total equity and liabilities Concept (Monetary) As Of Credit ifrs-full:EquityAndLiabilities
671 1092 - Disclosure - New Standards, Amendments and Interpretations - Summary of Impacts on Consolidated Income Statement (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureNewStandardsAmendmentsAndInterpretationsSummaryOfImpactsOnConsolidatedIncomeStatement
672 Disclosure of impacts of IFRS 15 on consolidated balance sheet [Table] Table

*

*

sny:DisclosureOfImpactsOfIFRS15OnConsolidatedBalanceSheetTable
673 Retrospective application and retrospective restatement [axis] Axis ifrs-full:RetrospectiveApplicationAndRetrospectiveRestatementAxis
674 Currently stated [member] Member ifrs-full:RestatedMember
675 Previously stated [member] Member ifrs-full:PreviouslyStatedMember
676 Impact of IFRS15 [member] Member sny:IncreaseDecreaseDueToChangesInAccountingPolicyRequiredByIFRS15Member
677 Including Impact of IFRS15 [member] Member sny:IncludingImpactOfIFRS15Member
678 Disclosure of impacts of IFRS 15 on consolidated balance sheet [Line Items] LineItems sny:DisclosureOfImpactsOfIFRS15OnConsolidatedBalanceSheetLineItems
679 Net sales Concept (Monetary) For Period Credit ifrs-full:RevenueFromSaleOfGoods
680 Cost of sales Concept (Monetary) For Period Debit ifrs-full:CostOfSales
681 Gross profit Concept (Monetary) For Period Credit ifrs-full:GrossProfit
682 Selling and general expenses Concept (Monetary) For Period Debit ifrs-full:SellingGeneralAndAdministrativeExpense
683 Operating income Concept (Monetary) For Period Credit ifrs-full:ProfitLossFromOperatingActivities
684 Income before tax and investments accounted for using the equity method Concept (Monetary) For Period Credit sny:IncomeBeforeTaxAndInvestmentsAccountedForEquityMethodInvestments
685 Income tax expense Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
686 Share of profit/(loss) from investments accounted for using the equity method Concept (Monetary) For Period Credit ifrs-full:ShareOfProfitLossOfAssociatesAccountedForUsingEquityMethod
687 Net income/(loss) of the exchanged/held-for-exchange Animal Health business Concept (Monetary) For Period Credit ifrs-full:ProfitLossFromDiscontinuedOperations
688 Net income Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
689 Net income attributable to equity holders of Sanofi Concept (Monetary) For Period Credit ifrs-full:ProfitLossAttributableToOwnersOfParent
690 Basic earnings per share (in euros) Concept (Share) For Period ifrs-full:DilutedEarningsLossPerShare
691 1093 - Disclosure - New Standards, Amendments and Interpretations - Summary of Reclassification and Impacts of Financial Assets (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureNewStandardsAmendmentsAndInterpretationsSummaryOfReclassificationAndImpactsOfFinancialAssets
692 Disclosure of reclassification of financial assets [table] Table

*

*

ifrs-full:DisclosureOfReclassificationOfFinancialAssetsTable
693 Effect of overlay approach reclassification [axis] Axis ifrs-full:EffectOfOverlayApproachReclassificationAxis
694 In accordance with IFRS 9 [member] Member ifrs-full:InAccordanceWithIFRS9Member
695 Quoted equity investments [member] Member sny:QuotedEquityInvestmentsMember
696 Unquoted equity investments [member] Member sny:UnquotedEquityInvestmentsMember
697 Available-for-sale financial assets (contingent consideration receivable) [member] Member sny:AvailableforsaleFinancialAssetsContingentConsiderationReceivableMember
698 Financial assets held to meet obligations under post-employment benefit plans [member] Member sny:FinancialAssetsHeldToMeetObligationsUnderPostemploymentBenefitPlansMember
699 Financial assets held to meet obligations under deferred compensation plans [member] Member sny:FinancialassetsheldtomeetobligationsunderdeferredcompensationplansMember
700 New IFRSs [axis] Axis ifrs-full:NewIFRSsAxis
701 New IFRSs [member] Member ifrs-full:NewIFRSsMember
702 IFRS9 [member] Member sny:IFRS9Member
703 Reclassified items [axis] Axis ifrs-full:ReclassifiedItemsAxis
704 Reclassified items [member] Member ifrs-full:ReclassifiedItemsMember
705 Equity instruments fair value other comprehensive income non reclassifiable [member] Member sny:EquityInstrumentsFairValueOtherComprehensiveIncomeNonReclassifiableMember
706 Debt instruments fair value other comprehensive income reclassifiable [member] Member sny:DebtInstrumentsFairValueOtherComprehensiveIncomeReclassifiableMember
707 Other financial assets at fair value through profit loss [member] Member sny:OtherFinancialAssetsAtFairValueThroughProfitLossMember
708 Additional paid-in capital and retained earnings [member] Member sny:AdditionalPaidinCapitalAndRetainedEarningsMember
709 Events of reclassification of financial assets [axis] Axis ifrs-full:EventsOfReclassificationOfFinancialAssetsAxis
710 Events of reclassification of financial assets [member] Member ifrs-full:EventsOfReclassificationOfFinancialAssetsMember
711 Quoted equity investments [member] Member sny:QuotedEquityInvestmentsMember
712 Unquoted equity investments [member] Member sny:UnquotedEquityInvestmentsMember
713 Debt Instruments [member] Member sny:DebtInstrumentsMember
714 Equity instruments [member] Member sny:EquityInstrumentsMember
715 Available-for-sale financial assets (contingent consideration receivable) [member] Member sny:AvailableforsaleFinancialAssetsContingentConsiderationReceivableMember
716 Financial assets held to meet obligations under post-employment benefit plans [member] Member sny:FinancialAssetsHeldToMeetObligationsUnderPostemploymentBenefitPlansMember
717 Financial assets held to meet obligations under postemployment deferred compensation plans [member] Member sny:FinancialAssetsHeldToMeetObligationsUnderPostemploymentDeferredCompensationPlansMember
718 Disclosure of reclassification of financial assets [line items] LineItems ifrs-full:DisclosureOfReclassificationOfFinancialAssetsLineItems
719 Available-for-sale financial assets Concept (Monetary) As Of Debit ifrs-full:FinancialAssetsReclassifiedOutOfAvailableforsaleFinancialAssetsCarryingAmount
720 Financial assets recognized under the fair value option Concept (Monetary) As Of Debit ifrs-full:FinancialAssetsReclassifiedOutOfAvailableforsaleFinancialAssetsAtFairValue
721 Other comprehensive income Concept (Monetary) For Period ifrs-full:ReclassificationOfFinancialAssetsOutOfMeasuredAtFairValueThroughProfitOrLossIntoMeasuredAtFairValueThroughOtherComprehensiveIncome
722 1094 - Disclosure - New Standards, Amendments and Interpretations - Additional Information (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureNewStandardsAmendmentsAndInterpretationsAdditionalInformation
723 Disclosure of initial application of standards or interpretations [table] Table

*

*

ifrs-full:DisclosureOfInitialApplicationOfStandardsOrInterpretationsTable
724 Effect of overlay approach reclassification [axis] Axis ifrs-full:EffectOfOverlayApproachReclassificationAxis
725 In accordance with IFRS 9 [member] Member ifrs-full:InAccordanceWithIFRS9Member
726 IFRS9 [member] Member sny:IFRS9Member
727 Range [axis] Axis ifrs-full:RangeAxis
728 Ranges [member] Member ifrs-full:RangesMember
729 Bottom of range [member] Member ifrs-full:BottomOfRangeMember
730 Top of range [member] Member ifrs-full:TopOfRangeMember
731 Disclosure of initial application of standards or interpretations [line items] LineItems ifrs-full:DisclosureOfInitialApplicationOfStandardsOrInterpretationsLineItems
732 Impairment allowance Concept (Monetary) For Period Credit ifrs-full:ReversalOfImpairmentLoss
733 Decrease in retained earnings Concept (Monetary) For Period Credit sny:IncreaseDecreaseInRetainedEarnings
734 Future lease payments Concept (Monetary) As Of Credit sny:FutureLeasePaymentsLiabilities
735 1095 - Disclosure - Hyperinflation - Translation of Financial Statements - Additional Information (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureHyperinflationTranslationOfFinancialStatementsAdditionalInformation
736 Disclosure Of Effect Of Changes In Foreign Exchange Rates Gain Loss [Table] Table

*

*

sny:DisclosureOfEffectOfChangesInForeignExchangeRatesGainLossTable
737 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
738 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
739 Venezuelan subsidiaries [member] Member country:VE
740 Argentina [member] Member country:AR
741 Disclosure of effect of changes in foreign exchange rates gain loss [line items] LineItems sny:DisclosureOfEffectOfChangesInForeignExchangeRatesGainLossLineItems
742 Foreign exchange loss Concept (Monetary) For Period Debit ifrs-full:NetForeignExchangeLoss
743 Devaluation of currency Concept (Text/String) For Period sny:DevaluationOfCurrency
744 Cumulative inflation description Concept (Text/String) For Period sny:CumulativeInflationDescription
745 Cumulative inflation rate over three years Concept (Percent) As Of sny:CumulativeConsumerPriceInflationRate
746 1096 - Disclosure - Summary of Significant Accounting Policies - Other Intangible Assets not Acquired in Business Combination - Additional Information (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesOtherIntangibleAssetsNotAcquiredInBusinessCombinationAdditionalInformation
747 Disclosure of detailed information about intangible assets [table] Table

*

*

ifrs-full:DisclosureOfIntangibleAssetsTable
748 Range [axis] Axis ifrs-full:RangeAxis
749 Ranges [member] Member ifrs-full:RangesMember
750 Bottom of range [member] Member ifrs-full:BottomOfRangeMember
751 Top of range [member] Member ifrs-full:TopOfRangeMember
752 Classes of intangible assets other than goodwill [axis] Axis ifrs-full:ClassesOfIntangibleAssetsOtherThanGoodwillAxis
753 Intangible assets other than goodwill [member] Member ifrs-full:IntangibleAssetsOtherThanGoodwillMember
754 Software [member] Member ifrs-full:ComputerSoftwareMember
755 Disclosure of detailed information about intangible assets [line items] LineItems ifrs-full:DisclosureOfIntangibleAssetsLineItems
756 Intangible asset, useful lives Concept (xbrli:durationItemType) For Period sny:EstimatedUsefulLivesOfIntangibleAsset
757 1097 - Disclosure - Summary of Significant Accounting Policies - Summary of Useful Lives of Property Plant and Equipment (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesSummaryOfUsefulLivesOfPropertyPlantAndEquipment
758 Disclosure of detailed information about property, plant and equipment [table] Table

*

*

ifrs-full:DisclosureOfPropertyPlantAndEquipmentTable
759 Classes of property, plant and equipment [axis] Axis ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
760 Property, plant and equipment [member] Member ifrs-full:PropertyPlantAndEquipmentMember
761 Buildings [member] Member ifrs-full:BuildingsMember
762 Fixtures and fittings [member] Member ifrs-full:FixturesAndFittingsMember
763 Machinery and equipment [member] Member sny:MachineryAndEquipment1Member
764 Other property, plant and equipment [member] Member ifrs-full:OtherPropertyPlantAndEquipmentMember
765 Disclosure of detailed information about property, plant and equipment [line items] LineItems ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems
766 Useful lives or depreciation rates, property, plant and equipment Concept (Text/String) For Period ifrs-full:UsefulLivesOrDepreciationRatesPropertyPlantAndEquipment
767 1098 - Disclosure - Summary of Significant Accounting Policies - Treasury Shares - Additional Information (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesTreasurySharesAdditionalInformation
768 Implied Table Table

*

*

implied:Table
769 Equity [abstract] Abstract ifrs-full:EquityAbstract
770 Gain (loss) recognized on purchase of treasury shares Concept (Monetary) For Period Credit sny:GainLossOnPurchaseOfTreasuryShares
771 Gain (loss) recognized on sale of treasury shares Concept (Monetary) For Period Credit sny:GainLossOnSaleOfTreasuryShares
772 Gain (loss) recognized on impairment of treasury shares Concept (Monetary) For Period Credit sny:GainLossOnImpairmentOfTreasuryShares
773 Gain (loss) recognized on cancellation of treasury shares Concept (Monetary) For Period Credit sny:GainLossOnCancellationOfTreasuryShares
774 1099 - Disclosure - Summary of Significant Accounting Policies - Provision for Risks - Additional Information (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesProvisionForRisksAdditionalInformation
775 Implied Table Table

*

*

implied:Table
776 Disclosure Of Provisions For Risk [abstract] Abstract sny:DisclosureOfProvisionsForRiskAbstract
777 Provisions recorded for future operating losses Concept (Monetary) For Period Debit sny:ProvisionsRecordedForFutureOperatingLosses
778 1100 - Disclosure - Summary of Significant Accounting Policies - Income Tax Expense - Additional Information (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesIncomeTaxExpenseAdditionalInformation
779 Disclosure Of Income Taxes [Table] Table

*

*

sny:DisclosureOfIncomeTaxesTable
780 Segment consolidation items [axis] Axis ifrs-full:SegmentConsolidationItemsAxis
781 Entity's total for segment consolidation items [member] Member ifrs-full:EntitysTotalForSegmentConsolidationItemsMember
782 Elimination of inter-segment amounts [member] Member ifrs-full:EliminationOfIntersegmentAmountsMember
783 Disclosure of income taxes [line items] LineItems sny:DisclosureOfIncomeTaxesLineItems
784 Deferred tax expense Concept (Monetary) For Period Debit ifrs-full:DeferredTaxExpenseIncome
785 1101 - Disclosure - Summary of Significant Accounting Policies - Employee Benefit Obligations - Additional Information (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesEmployeeBenefitObligationsAdditionalInformation
786 Implied Table Table

*

*

implied:Table
787 Disclosure of defined benefit plans [abstract] Abstract ifrs-full:DisclosureOfDefinedBenefitPlansAbstract
788 Description of nature of benefits provided by plan Concept (Text/String) For Period ifrs-full:DescriptionOfNatureOfBenefitsProvidedByPlan
789 1102 - Disclosure - Summary of Significant Accounting Policies - Share-Based Payment - Additional Information (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesShareBasedPaymentAdditionalInformation
790 Share Based Payment Plans [Table] Table

*

*

sny:ShareBasedPaymentPlansTable
791 Types of share-based payment arrangements [axis] Axis ifrs-full:TypesOfSharebasedPaymentArrangementsAxis
792 Stock options and other share-based payment [Member] Member ifrs-full:SharebasedPaymentArrangementsMember
793 Stock option plans [member] Member sny:StockOptionPlansMember
794 Share based payment plans [line items] LineItems sny:ShareBasedPaymentPlansLineItems
795 Description of method of settlement for share-based payment arrangement Concept (Text/String) For Period ifrs-full:DescriptionOfMethodOfSettlementForSharebasedPaymentArrangement
796 Option vesting period Concept (xbrli:durationItemType) For Period sny:OptionVestingPeriod
797 Description of vesting requirements for share-based payment arrangement Concept (Text/String) For Period ifrs-full:DescriptionOfVestingRequirementsForSharebasedPaymentArrangement
798 Lock-up period Concept (xbrli:durationItemType) For Period sny:LockUpPeriod
799 1103 - Disclosure - Summary of Significant Accounting Policies - Segment Information - Additional Information (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesSegmentInformationAdditionalInformation
800 Disclosure of operating segments [table] Table

*

*

ifrs-full:DisclosureOfOperatingSegmentsTable
801 Segments [axis] Axis ifrs-full:SegmentsAxis
802 Segments [member] Member ifrs-full:SegmentsMember
803 Pharmaceuticals [member] Member sny:PharmaceuticalsMember
804 Consumer Healthcare [member] Member sny:ConsumerHealthcareMember
805 Vaccines [member] Member sny:VaccinesMember
806 Disclosure of operating segments [line items] LineItems ifrs-full:DisclosureOfOperatingSegmentsLineItems
807 Number of operating segments Concept (Integer) For Period sny:NumberOfOperatingSegments1
808 Segment description Concept (Text/String) For Period ifrs-full:FactorsUsedToIdentifyEntitysReportableSegments
809 1104 - Disclosure - Alliance Arrangements with Regeneron Pharmaceuticals, Inc. (Regeneron) - Antibodies Collaboration Agreement - Additional Information (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureAllianceArrangementsWithRegeneronPharmaceuticalsIncRegeneronAntibodiesCollaborationAgreementAdditionalInformation
810 Disclosure of detailed information about business combination [table] Table

*

*

ifrs-full:DisclosureOfBusinessCombinationsTable
811 Counterparties [axis] Axis ifrs-full:CounterpartiesAxis
812 Counterparties [member] Member ifrs-full:CounterpartiesMember
813 Regeneron Pharmaceuticals, Inc. [member] Member sny:RegeneronPharmaceuticalsIncMember
814 Principal alliances [axis] Axis sny:PrincipalAlliancesAxis
815 Principal alliances [domain] Member sny:PrincipalAlliancesDomain
816 Antibodies collaboration agreement [member] Member sny:AntibodiesCollaborationAgreementMember
817 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
818 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
819 Outside the United States [member] Member sny:OutsideUnitedStatesMember
820 Range [axis] Axis ifrs-full:RangeAxis
821 Ranges [member] Member ifrs-full:RangesMember
822 Bottom of range [member] Member ifrs-full:BottomOfRangeMember
823 Top of range [member] Member ifrs-full:TopOfRangeMember
824 Disclosure of detailed information about Principal Alliances [Line Items] LineItems sny:DisclosureOfDetailedInformationAboutPrincipalAlliancesLineItems
825 Maximum funding of the discovery and pre-clinical development of antibodies Concept (Monetary) For Period Debit sny:MaximumFundingOfDiscoveryAndPreclinicalDevelopmentOfAntibodies
826 Reallocation of the development expenses to IO from Antibodies Collaboration Agreement Concept (Monetary) For Period Debit sny:ReallocationOfDevelopmentExpenses
827 Percentage of €2.8 billion cumulative development costs funded by Sanofi Concept (Percent) For Period sny:PercentageOfSecondPartOfDevelopmentCostsFundedBySanofi
828 Percentage of €2.8 billion cumulative development costs funded by Regeneron Concept (Percent) For Period sny:PercentageOfSecondPartOfDevelopmentCostsFundedByOtherParty
829 Percentage of cumulative development costs reimbursed Concept (Percent) For Period sny:PercentageOfCumulativeDevelopmentCostsReimbursed
830 Maximum additional profit-share, in percentage of Regeneron's quarterly profit Concept (Percent) For Period sny:PercentageOfProfitShareOnCounterpartiesProfit
831 Cumulative development costs funded by both companies Concept (Monetary) For Period Debit sny:CumulativeDevelopmentCostsIncurredByBothCompanies
832 Cumulative development costs incurred - Part funded by Sanofi at 100% Concept (Monetary) For Period Debit sny:CumulativeDevelopmentCostsIncurredFundedEntirelyBySanofi
833 Percentage of €3.3 billion cumulative development costs funded by Sanofi Concept (Percent) For Period sny:PercentageOfFirstPartOfDevelopmentCostsFundedBySanofi
834 Cumulative development cost incurred - Sanofi part 80% and Regeneron part 20% Concept (Monetary) For Period Debit sny:CumulativeDevelopmentCostsIncurredByCompanyAndOtherParty
835 Percentage of losses borne by Sanofi Concept (Percent) For Period sny:PercentageOfLossesBorneByCompany
836 Percentage of profits and losses arising from commercial operations Concept (Percent) For Period sny:PercentageOfProfitsAndLossesArisingFromCommercialOperations
837 Contingent sales milestone receivable Concept (Monetary) For Period Credit sny:MaximumAmountEligibleToReceiveUponAchievementOfCertainRegulatoryAndSalesMilestones
838 1105 - Disclosure - Alliance Arrangements with Regeneron Pharmaceuticals, Inc. (Regeneron) - Immuno-Oncology Agreement - Additional Information (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureAllianceArrangementsWithRegeneronPharmaceuticalsIncRegeneronImmunoOncologyAgreementAdditionalInformation
839 Disclosure of detailed information about business combination [table] Table

*

*

ifrs-full:DisclosureOfBusinessCombinationsTable
840 Counterparties [axis] Axis ifrs-full:CounterpartiesAxis
841 Counterparties [member] Member ifrs-full:CounterpartiesMember
842 Regeneron Pharmaceuticals, Inc. [member] Member sny:RegeneronPharmaceuticalsIncMember
843 Principal alliances [axis] Axis sny:PrincipalAlliancesAxis
844 Principal alliances [domain] Member sny:PrincipalAlliancesDomain
845 Immuno-oncology collaboration agreement [member] Member sny:ImmunoOncologyCollaborationAgreementMember
846 Agreement amendment [member] Member sny:AgreementAmendmentMember
847 Types of agreement [axis] Axis sny:TypesOfAgreementAxis
848 Types of agreement [domain] Member sny:TypesOfAgreementDomain
849 Development of cemiplimab (REGN2810) [Member] Member sny:DevelopmentOfCemiplimabREGN2810Member
850 Maturity [axis] Axis ifrs-full:MaturityAxis
851 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
852 2022 [member] Member sny:TwoThousandTwentyTwoMember
853 Categories of Related Parties [Axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
854 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
855 Regeneron Pharmaceuticals, Inc. [member] Member sny:RegeneronPharmaceuticalsIncMember
856 Disclosure of Principal Alliances [Line Items] LineItems sny:DisclosureOfPrincipalAlliancesLineItems
857 Upfront payments Concept (Monetary) For Period Debit sny:UpfrontPayments
858 Future development expense Concept (Monetary) For Period Debit sny:FutureDevelopmentExpense
859 Percentage of future development expense - Regeneron part Concept (Percent) For Period sny:PercentageOfFutureDevelopmentExpenseFundedByOtherParty
860 Future development expense - Regeneron part Concept (Monetary) For Period Debit sny:FutureDevelopmentExpenseFundedByOtherParty
861 Percentage of future development expense - Sanofi part Concept (Percent) For Period sny:PercentageOfFutureDevelopmentExpenseFundedByCompany
862 Future development expense - Sanofi part Concept (Monetary) For Period Debit sny:FutureDevelopmentExpenseFundedByCompany
863 Annual Ccontribution for antibody discovery collaboration Concept (Monetary) For Period Debit sny:AnnualContributionForAntibodyDiscoveryCollaboration
864 Spread period for the reallocation of the development expenses to IO from Antibodies Collaboration Agreement Concept (xbrli:durationItemType) For Period sny:BusinessCollaborationAgreementSpreadPeriod
865 Reallocation of the development expenses to IO from Antibodies Collaboration Agreement Concept (Monetary) For Period Debit sny:ReallocationOfDevelopmentExpenses
866 Maximum additional profit-share, in percentage of Regeneron's quarterly profit Concept (Percent) For Period sny:PercentageOfProfitShareOnCounterpartiesProfit
867 Percentage of cumulative development costs reimbursed Concept (Percent) For Period sny:PercentageOfCumulativeDevelopmentCostsReimbursed
868 Payments due under original Immuno-oncology Agreement Concept (Monetary) For Period Debit sny:PaymentsDueUnderOriginalImmunoOncologyAgreement
869 Maximum funding of the discovery development of antibodies Concept (Monetary) For Period Debit sny:DevelopmentCostsForTheTwoBispecificAntibodies
870 Clinical development costs Concept (Monetary) For Period Credit sny:ClinicalDevelopmentSupportCost
871 Contractual agreement for anti-programmed cell death protein1 part of each company Concept (Text/String) For Period sny:ContractualAgreementForAntiprogrammedCellDeathProtein1PartOfEachCompany
872 Maximum additional funding for PD1 - part of each company Concept (Monetary) For Period Debit sny:MaximumAdditionalFundingForAntiProgrammedCellDeathProtein1PartOfEachCompany
873 PD1 Sales Milestone payment from Sanofi Concept (Monetary) For Period Debit sny:AntiProgrammedCellDeathProtein1SalesMilestonePayment
874 Minimum sales of PD1 in 12-month period to be achieved for milestone payment Concept (Monetary) For Period Debit sny:MinimumSalesOfAntiProgrammedCellDeathProtein1InTwelveMonthPeriodToBeAchievedForMilestonePayment
875 Prior development budget in total Concept (Monetary) As Of Debit sny:PriorDevelopmentBudget
876 New development budget in total Concept (Monetary) As Of Debit sny:NewDevelopmentBudget
877 Prior development budget by partner Concept (Monetary) As Of Debit sny:PriorDevelopmentBudgetByPartner
878 New development budget by partner Concept (Monetary) As Of Debit sny:NewDevelopmentBudgetByPartner
879 1106 - Disclosure - Alliance Arrangements with Regeneron Pharmaceuticals, Inc. (Regeneron) - Investment Agreement - Additional Information (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureAllianceArrangementsWithRegeneronPharmaceuticalsIncRegeneronInvestmentAgreementAdditionalInformation
880 Disclosure of detailed information about business combination [table] Table

*

*

ifrs-full:DisclosureOfBusinessCombinationsTable
881 Counterparties [axis] Axis ifrs-full:CounterpartiesAxis
882 Counterparties [member] Member ifrs-full:CounterpartiesMember
883 Regeneron Pharmaceuticals, Inc. [member] Member sny:RegeneronPharmaceuticalsIncMember
884 Principal alliances [axis] Axis sny:PrincipalAlliancesAxis
885 Principal alliances [domain] Member sny:PrincipalAlliancesDomain
886 2014 Amended Investment Agreement [member] Member sny:TwoThousandFourteenAmendedInvestmentAgreementMember
887 Investment agreement [member] Member sny:InvestmentAgreementMember
888 2018 Letter Agreement [member] Member sny:TwoThousandEighteenLetterAgreementMember
889 Disclosure of detailed information about Principal Alliances [Line Items] LineItems sny:DisclosureOfDetailedInformationAboutPrincipalAlliancesLineItems
890 Maximum ownership percentage allowed to acquire Concept (Percent) For Period sny:MaximumOwnershipPercentageAllowedToAcquire
891 Threshold ownership percentage of capital stock to designate an independent director Concept (Percent) For Period sny:ThresholdOwnershipPercentageOfCapitalStock
892 Maximum percentage of capital stock acquired Concept (Percent) For Period sny:MaximumPercentageOfCapitalStockAcquired
893 Aggregate number of Regeneron shares that could be sold for cemiplimab and dupilimab funding costs Concept (Shares) As Of sny:AggregateNumberOfRegeneronSharesThatCouldBeSoldForCemiplimabAndDupilumabFundingCosts
894 Regeneron ordinary shares sold to Regeneron Concept (Shares) As Of sny:RegeneronOrdinarySharesSoldToRegeneron
895 1107 - Disclosure - Alliance Arrangements with Bristol-Myers Squibb (BMS) - Additional Information (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureAllianceArrangementsWithBristolMyersSquibbBMSAdditionalInformation
896 Disclosure of detailed information about business combination [table] Table

*

*

ifrs-full:DisclosureOfBusinessCombinationsTable
897 Counterparties [axis] Axis ifrs-full:CounterpartiesAxis
898 Counterparties [member] Member ifrs-full:CounterpartiesMember
899 Entities and companies managed by Bristol-Myers Squibb [member] Member sny:BristolMyersSquibbMember
900 Disclosure of Principal Alliances [Line Items] LineItems sny:DisclosureOfPrincipalAlliancesLineItems
901 Number of leading products jointly developed Concept (Integer) For Period sny:NumberOfProductsJointlyDeveloped
902 Royalty payment to be paid by Sanofi Concept (Monetary) For Period Debit sny:RoyaltiesPaymentsMadeBySanofi
903 1108 - Disclosure - Changes in the Scope of Consolidation Due to Acquisitions and Divestments - Additional Information (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureChangesInTheScopeOfConsolidationDueToAcquisitionsAndDivestmentsAdditionalInformation
904 Disclosure of detailed information about business combination [table] Table

*

*

ifrs-full:DisclosureOfBusinessCombinationsTable
905 Business Combinations [Axis] Axis ifrs-full:BusinessCombinationsAxis
906 Entity's total for business combinations [member] Member ifrs-full:EntitysTotalForBusinessCombinationsMember
907 Protein Sciences [member] Member sny:ProteinSciencesMember
908 European Vaccines business previously included in the Sanofi Pasteur MSD joint venture [member] Member sny:EuropeanVaccineBusinessOfSPMSDMember
909 Bioverativ [member] Member sny:BioverativMember
910 Ablynx N.V [member] Member sny:AblynxMember
911 European generic business [member] Member sny:EuropeanGenericBusinessMember
912 Sanofi Pasteur MSD joint venture [member] Member sny:SpmsdMember
913 Income Statement Location [Axis] Axis us-gaap:IncomeStatementLocationAxis
914 Income Statement Location [Domain] Member us-gaap:IncomeStatementLocationDomain
915 Other operating income (expense) [member] Member us-gaap:OtherOperatingIncomeExpenseMember
916 Segments [axis] Axis ifrs-full:SegmentsAxis
917 Segments [member] Member ifrs-full:SegmentsMember
918 Pharmaceuticals [member] Member sny:PharmaceuticalsSegmentMember
919 Classes of intangible assets and goodwill [axis] Axis ifrs-full:ClassesOfIntangibleAssetsAndGoodwillAxis
920 Intangible assets and goodwill [member] Member ifrs-full:IntangibleAssetsAndGoodwillMember
921 Flublok [member] Member sny:FlublokMember
922 Disclosure of detailed information about business combination [line items] LineItems ifrs-full:DisclosureOfBusinessCombinationsLineItems
923 Purchase price Concept (Monetary) As Of Debit sny:PurchasePrice
924 Date of acquisition Concept (Date) For Period ifrs-full:DateOfAcquisition2013
925 Goodwill Concept (Monetary) As Of Debit ifrs-full:Goodwill
926 Sales Concept (Monetary) For Period Credit ifrs-full:RevenueOfAcquiree
927 Sales Concept (Monetary) For Period Credit ifrs-full:RevenueOfCombinedEntity
928 Operating profit Concept (Monetary) For Period Credit sny:BusinessOperatingIncome
929 Negative contribution to net profit Concept (Monetary) For Period Credit ifrs-full:ProfitLossOfAcquiree
930 Acquisition related costs Concept (Monetary) For Period Debit ifrs-full:AcquisitionrelatedCostsRecognisedAsExpenseForTransactionRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombination
931 Net cash outflow on acquisition Concept (Monetary) For Period Credit sny:NetCashOutflowOnAcquisitionOfSubsidiaries
932 Percentage of equity interest held Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestInSubsidiary
933 Gain on sale of busines before taxes Concept (Monetary) For Period Credit sny:OtherGainsAndLossesAndLitigation
934 Proceeds from disposals of property, plant and equipment, intangible assets and other non-current assets, net of tax Concept (Monetary) For Period Debit ifrs-full:ProceedsFromDisposalsOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets
935 Percentage of voting equity interests acquired Concept (Percent) As Of ifrs-full:PercentageOfVotingEquityInterestsAcquired
936 Contingent consideration Concept (Monetary) As Of Debit ifrs-full:ContingentConsiderationArrangementsAndIndemnificationAssetsRecognisedAsOfAcquisitionDate
937 Other intangible assets acquired Concept (Monetary) As Of Debit ifrs-full:IdentifiableIntangibleAssetsRecognisedAsOfAcquisitionDate
938 Cash received from divestment Concept (Monetary) As Of sny:CashReceivedFromDivestment
939 Fair value of the contingent consideration Concept (Monetary) As Of sny:FairValueOfTheContingentConsideration
940 Pre-tax gain of the divestment Concept (Monetary) As Of Debit sny:PretaxGainOfTheDivestment
941 Negative price adjustment amount Concept (Monetary) For Period ifrs-full:MeasurementPeriodAdjustmentsRecognisedForParticularAssetsLiabilitiesNoncontrollingInterestsOrItemsOfConsideration
942 Cash transferred Concept (Monetary) As Of Credit ifrs-full:CashTransferred
943 1109 - Disclosure - Changes in the Scope of Consolidation Due to Acquisitions and Divestments - Summary of Purchase Price Allocation (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureChangesInTheScopeOfConsolidationDueToAcquisitionsAndDivestmentsSummaryOfPurchasePriceAllocation
944 Disclosure of detailed information about business combination [table] Table

*

*

ifrs-full:DisclosureOfBusinessCombinationsTable
945 Business Combinations [Axis] Axis ifrs-full:BusinessCombinationsAxis
946 Entity's total for business combinations [member] Member ifrs-full:EntitysTotalForBusinessCombinationsMember
947 Ablynx N.V [member] Member sny:AblynxMember
948 Bioverativ [member] Member sny:BioverativMember
949 Protein Sciences [member] Member sny:ProteinSciencesMember
950 Disclosure of detailed information about business combination [line items] LineItems ifrs-full:DisclosureOfBusinessCombinationsLineItems
951 Other intangible assets Concept (Monetary) As Of Debit ifrs-full:IdentifiableIntangibleAssetsRecognisedAsOfAcquisitionDate
952 Inventories Concept (Monetary) As Of Debit ifrs-full:InventoryRecognisedAsOfAcquisitionDate
953 Cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalentsRecognisedAsOfAcquisitionDate
954 Other assets and liabilities Concept (Monetary) As Of Debit sny:OtherAssetsAndLiabilitiesAsOfAcquisitionDate
955 True North Therapeutics contingent consideration liability Concept (Monetary) As Of Credit ifrs-full:ContingentLiabilitiesRecognisedAsOfAcquisitionDate
956 Net deferred tax position Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilitiesRecognisedAsOfAcquisitionDate
957 Net assets at acquisition date Concept (Monetary) As Of Debit ifrs-full:IdentifiableAssetsAcquiredLiabilitiesAssumed
958 Goodwill Concept (Monetary) As Of Debit sny:GoodwillRecognisedAsOfAcquisitionDate
959 Purchase price Concept (Monetary) As Of Debit sny:PurchasePrice
960 1110 - Disclosure - Changes in the Scope of Consolidation Due to Acquisitions and Divestments - Summary of Assets and Liabilities Divested (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureChangesInTheScopeOfConsolidationDueToAcquisitionsAndDivestmentsSummaryOfAssetsAndLiabilitiesDivested
961 Disclosure Of Business Disposal [Table] Table

*

*

sny:DisclosureOfBusinessDisposalTable
962 Assets and Liabilities Classified as Held for Sale [Axis] Axis ifrs-full:AssetsAndLiabilitiesClassifiedAsHeldForSaleAxis
963 Assets and liabilities not classified as held for sale [member] Member ifrs-full:AssetsAndLiabilitiesNotClassifiedAsHeldForSaleMember
964 Disposal groups classified as held for sale [member] Member ifrs-full:DisposalGroupsClassifiedAsHeldForSaleMember
965 Business Combinations [Axis] Axis ifrs-full:BusinessCombinationsAxis
966 Entity's total for business combinations [member] Member ifrs-full:EntitysTotalForBusinessCombinationsMember
967 European Generics Business [member] Member sny:EuropeanGenericsBusinessMember
968 Disclosure of Business Disposal [Line Items] LineItems sny:DisclosureOfBusinessDisposalLineItems
969 Assets Abstract ifrs-full:AssetsAbstract
970 Property, plant and equipment Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
971 Goodwill Concept (Monetary) As Of Debit ifrs-full:Goodwill
972 Other intangible assets Concept (Monetary) As Of Debit ifrs-full:IntangibleAssetsOtherThanGoodwill
973 Other non-currentassets Concept (Monetary) As Of Debit ifrs-full:OtherNoncurrentAssets
974 Deferred tax assets Concept (Monetary) As Of Debit ifrs-full:DeferredTaxAssets
975 Inventories Concept (Monetary) As Of Debit ifrs-full:Inventories
976 Accounts receivable Concept (Monetary) As Of Debit ifrs-full:CurrentTradeReceivables
977 Other current assets Concept (Monetary) As Of Debit ifrs-full:OtherCurrentAssets
978 Cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
979 Total assets Concept (Monetary) As Of Debit ifrs-full:Assets
980 Liabilities Abstract ifrs-full:LiabilitiesAbstract
981 Non-current provisions and other non-currentliabilities Concept (Monetary) As Of Credit sny:NoncurrentProvisionsAndOtherNoncurrentLiabilities
982 Deferred tax liabilities Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilities
983 Accounts payable Concept (Monetary) As Of Credit sny:CurrentTradePayables
984 Other current liabilities Concept (Monetary) As Of Credit ifrs-full:CurrentLiabilitiesOtherThanLiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSale
985 Short-term debt and current portion of long-term debt Concept (Monetary) As Of Credit ifrs-full:CurrentBorrowingsAndCurrentPortionOfNoncurrentBorrowings
986 Total liabilities Concept (Monetary) As Of Credit ifrs-full:Liabilities
987 1111 - Disclosure - Changes in the Scope of Consolidation Due to Acquisitions and Divestments - Summary of Changes in Equity Interest Held (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureChangesInTheScopeOfConsolidationDueToAcquisitionsAndDivestmentsSummaryOfChangesInEquityInterestHeld
988 Disclosure of share capital, reserves and other equity interest [table] Table

*

*

sny:DisclosureOfShareCapitalReservesAndOtherEquityInterestTable
989 Business Combinations [Axis] Axis ifrs-full:BusinessCombinationsAxis
990 Entity's total for business combinations [member] Member ifrs-full:EntitysTotalForBusinessCombinationsMember
991 Regeneron Pharmaceuticals, Inc. [member] Member sny:RegeneronPharmaceuticalsIncMember
992 Disclosure of Share Capital Reserves and Other Equity Interest [Line Items] LineItems sny:DisclosureOfShareCapitalReservesAndOtherEquityInterestLineItems
993 Carrying amount Concept (Monetary) For Period sny:CarryingAmountOfShares
994 Equity interest Concept (Percent) As Of ifrs-full:PercentageOfVotingEquityInterestsAcquired
995 Acquisitions of shares Concept (Monetary) For Period sny:ValueOfSharesAcquired
996 Disposals of shares Concept (Monetary) For Period Credit sny:DisposalOfSharesValue
997 1112 - Disclosure - Changes in the Scope of Consolidation Due to Acquisitions and Divestments - Summary of Final Purchase Price Allocation (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureChangesInTheScopeOfConsolidationDueToAcquisitionsAndDivestmentsSummaryOfFinalPurchasePriceAllocation
998 Disclosure of detailed information about business combination [table] Table

*

*

ifrs-full:DisclosureOfBusinessCombinationsTable
999 Business Combinations [Axis] Axis ifrs-full:BusinessCombinationsAxis
1000 Entity's total for business combinations [member] Member ifrs-full:EntitysTotalForBusinessCombinationsMember
1001 European Vaccines business previously included in the Sanofi Pasteur MSD joint venture [member] Member sny:EuropeanVaccineBusinessOfSPMSDMember
1002 Disclosure of detailed information about business combination [line items] LineItems ifrs-full:DisclosureOfBusinessCombinationsLineItems
1003 Other intangible assets Concept (Monetary) As Of Debit ifrs-full:IdentifiableIntangibleAssetsRecognisedAsOfAcquisitionDate
1004 Inventories Concept (Monetary) As Of Debit ifrs-full:InventoryRecognisedAsOfAcquisitionDate
1005 Other current assets Concept (Monetary) As Of Debit sny:OtherCurrentAssetsRecognisedAsOfAcquisitionDate
1006 Other non-current liabilities Concept (Monetary) As Of Credit ifrs-full:NoncurrentLiabilitiesRecognisedAsOfAcquisitionDate
1007 Net deferred tax position Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilitiesRecognisedAsOfAcquisitionDate
1008 Net assets at acquisition date Concept (Monetary) As Of Debit ifrs-full:IdentifiableAssetsAcquiredLiabilitiesAssumed
1009 Goodwill Concept (Monetary) As Of Debit ifrs-full:Goodwill
1010 Purchase price Concept (Monetary) As Of Debit sny:PurchasePrice
1011 1113 - Disclosure - Exchange of the Animal Health Business - Additional Information (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureExchangeOfTheAnimalHealthBusinessAdditionalInformation
1012 Disclosure of non-adjusting events after reporting period [table] Table

*

*

ifrs-full:DisclosureOfNonadjustingEventsAfterReportingPeriodTable
1013 Business Combinations [Axis] Axis ifrs-full:BusinessCombinationsAxis
1014 Entity's total for business combinations [member] Member ifrs-full:EntitysTotalForBusinessCombinationsMember
1015 Acquisition of Boehringer Inhelheim's Consumer Healthcare business [member] Member sny:CHCBusinessAcquiredFromBiMember
1016 Disclosure of non-adjusting events after reporting period [line items] LineItems ifrs-full:DisclosureOfNonadjustingEventsAfterReportingPeriodLineItems
1017 Exchange value of the Animal Health business Concept (Monetary) As Of Credit sny:ExchangeValueOfTheAnimalHealthBusiness
1018 Exchange value of the Boehringer Ingelheim Consumer Health Care business Concept (Monetary) As Of Credit sny:ExchangeValueOfTheBoehringerIngelheimConsumerHealthCareBusiness
1019 Pre-tax gain recognized related to exchanged/held-for-exchange Animal Health business Concept (Monetary) For Period Credit sny:PretaxGainGeneratedByTheDivestmentOfTheAnimalHealthBusiness
1020 After-tax gain recognized related to exchanged/held-for-exchange Animal Health business Concept (Monetary) For Period Credit ifrs-full:ProfitLossFromDiscontinuedOperations
1021 Goodwill Concept (Monetary) As Of Debit ifrs-full:Goodwill
1022 Tax-deductible portion of goodwill amount Concept (Monetary) As Of Debit ifrs-full:GoodwillExpectedDeductibleForTaxPurposes
1023 Acquisition related costs Concept (Monetary) For Period Debit us-gaap:AcquisitionCosts
1024 Sale of combined entity Concept (Monetary) For Period Credit ifrs-full:RevenueOfCombinedEntity
1025 1114 - Disclosure - Property, Plant and Equipment - Schedule of Property, Plant and Equipment (Including Assets Held Under Finance Leases) (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosurePropertyPlantAndEquipmentScheduleOfPropertyPlantAndEquipmentIncludingAssetsHeldUnderFinanceLeases
1026 Disclosure of detailed information about property, plant and equipment [table] Table

*

*

ifrs-full:DisclosureOfPropertyPlantAndEquipmentTable
1027 Classes of property, plant and equipment [axis] Axis ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
1028 Property, plant and equipment [member] Member ifrs-full:PropertyPlantAndEquipmentMember
1029 Land [member] Member ifrs-full:LandMember
1030 Buildings [member] Member ifrs-full:BuildingsMember
1031 Machinery and equipment [member] Member sny:MachineryAndEquipment1Member
1032 Fixtures and fittings [member] Member ifrs-full:FixturesAndFittingsMember
1033 Property, plant and equipment in process [member] Member sny:PropertyPlantAndEquipmentInProcessMember
1034 Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Axis ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis
1035 Carrying amount [member] Member ifrs-full:CarryingAmountMember
1036 Gross value [member] Member ifrs-full:GrossCarryingAmountMember
1037 Accumulated depreciation and amortisation [member] Member ifrs-full:AccumulatedDepreciationAmortisationAndImpairmentMember
1038 Disclosure of detailed information about property, plant and equipment [line items] LineItems ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems
1039 Property, plant and equipment, beginning balance Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
1040 Changes in scope of consolidation Concept (Monetary) For Period Debit ifrs-full:AcquisitionsThroughBusinessCombinationsPropertyPlantAndEquipment
1041 Depreciation expense Concept (Monetary) For Period Debit ifrs-full:DepreciationExpense
1042 Impairment losses, net of reversals Concept (Monetary) For Period ifrs-full:WritedownsReversalsOfPropertyPlantAndEquipment
1043 Acquisitions and other increases Concept (Monetary) For Period Debit ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment
1044 Disposals and other decreases Concept (Monetary) For Period Credit ifrs-full:DisposalsAndRetirementsPropertyPlantAndEquipment
1045 Currency translation differences Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment
1046 Transfers Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughTransfersPropertyPlantAndEquipment
1047 Property, plant and equipment, ending balance Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
1048 1115 - Disclosure - Property, Plant and Equipment - Summary of Acquisitions and Capitalized Interest by Operating Segment (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosurePropertyPlantAndEquipmentSummaryOfAcquisitionsAndCapitalizedInterestByOperatingSegment
1049 Disclosure of acquisitions of property plant and equipment by operating segments [table] Table

*

*

sny:DisclosureOfAcquisitionsOfPropertyPlantAndEquipmentByOperatingSegmentsTable
1050 Segments [axis] Axis ifrs-full:SegmentsAxis
1051 Segments [member] Member ifrs-full:SegmentsMember
1052 Pharmaceuticals [member] Member sny:PharmaceuticalsMember
1053 Vaccines [member] Member sny:VaccinesMember
1054 Consumer Healthcare [member] Member sny:ConsumerHealthcareMember
1055 Classes of property, plant and equipment [axis] Axis ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
1056 Property, plant and equipment [member] Member ifrs-full:PropertyPlantAndEquipmentMember
1057 Industrial facilities [member] Member sny:IndustrialFacilitiesMember
1058 Research sites [member] Member sny:ResearchSitesMember
1059 Other [member] Member sny:OtherMember
1060 Disclosure of acquisitions of property plant and equipment by operating segments [line items] LineItems sny:DisclosureOfAcquisitionsOfPropertyPlantAndEquipmentByOperatingSegmentsLineItems
1061 Acquisitions and other increases Concept (Monetary) For Period Debit ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment
1062 Capitalized interest Concept (Monetary) For Period ifrs-full:InterestCostsCapitalised
1063 1116 - Disclosure - Property, Plant and Equipment - Summary of Off Balance Sheet Commitments Relating to Property, Plant and Equipment (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosurePropertyPlantAndEquipmentSummaryOfOffBalanceSheetCommitmentsRelatingToPropertyPlantAndEquipment
1064 Implied Table Table

*

*

implied:Table
1065 Disclosure of offbalance sheet commitments of property plant and equipment [abstract] Abstract sny:DisclosureOfOffbalanceSheetCommitmentsOfPropertyPlantAndEquipmentAbstract
1066 Firm orders of property, plant and equipment Concept (Monetary) For Period Debit sny:FirmOrdersOfPropertyPlantAndEquipment
1067 Property, plant and equipment pledged as security for liabilities Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipmentPledgedAsSecurity
1068 1117 - Disclosure - Property, Plant and Equipment - Summary of Impairment Losses Recognised in Property, Plant and Equipment (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosurePropertyPlantAndEquipmentSummaryOfImpairmentLossesRecognisedInPropertyPlantAndEquipment
1069 Disclosure of impairment losses of property plant and equipment [table] Table

*

*

sny:DisclosureOfImpairmentLossesOfPropertyPlantAndEquipmentTable
1070 Classes of assets [axis] Axis ifrs-full:ClassesOfAssetsAxis
1071 Assets [member] Member ifrs-full:ClassesOfAssetsMember
1072 Dengue Vaccine Project [member] Member sny:DengueVaccineProjectMember
1073 Disclosure of impairment losses of property plant and equipment [line items] LineItems sny:DisclosureOfImpairmentLossesOfPropertyPlantAndEquipmentLineItems
1074 Net impairment losses Concept (Monetary) For Period ifrs-full:ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment
1075 1118 - Disclosure - Property, Plant and Equipment - Schedule of Amounts for Items of Property, Plant and Equipment Held under Finance Leases (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosurePropertyPlantAndEquipmentScheduleOfAmountsForItemsOfPropertyPlantAndEquipmentHeldUnderFinanceLeases
1076 Disclosure of recognised finance lease as assets by lessee [table] Table

*

*

ifrs-full:DisclosureOfRecognisedFinanceLeaseAsAssetsByLesseeTable
1077 Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Axis ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis
1078 Carrying amount [member] Member ifrs-full:CarryingAmountMember
1079 Gross value [member] Member ifrs-full:GrossCarryingAmountMember
1080 Accumulated depreciation and amortisation [member] Member ifrs-full:AccumulatedDepreciationAmortisationAndImpairmentMember
1081 Classes of property, plant and equipment [axis] Axis ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
1082 Property, plant and equipment [member] Member ifrs-full:PropertyPlantAndEquipmentMember
1083 Land [member] Member ifrs-full:LandMember
1084 Buildings [member] Member ifrs-full:BuildingsMember
1085 Other property, plant and equipment [member] Member ifrs-full:OtherPropertyPlantAndEquipmentMember
1086 Disclosure of recognised finance lease as assets by lessee [line items] LineItems ifrs-full:DisclosureOfRecognisedFinanceLeaseAsAssetsByLesseeLineItems
1087 Property,plant and equipment held under finance leases Concept (Monetary) As Of Debit ifrs-full:RecognisedFinanceLeaseAsAssets
1088 1119 - Disclosure - Property, Plant and Equipment - Summary of Future Minimum Lease Payments Due Under Finance Lease (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosurePropertyPlantAndEquipmentSummaryOfFutureMinimumLeasePaymentsDueUnderFinanceLease
1089 Implied Table Table

*

*

implied:Table
1090 Disclosure of future minimum lease payment for finance lease commitment [abstract] Abstract sny:DisclosureOfFutureMinimumLeasePaymentForFinanceLeaseCommitmentAbstract
1091 Future minimum lease payments due under finance leases Concept (Monetary) As Of Credit sny:FinanceLeaseObligationsTotal
1092 of which interest Concept (Monetary) As Of Credit sny:FinanceLeaseObligationsInterest
1093 1120 - Disclosure - Property, Plant and Equipment - Schedule of Future Minimum Lease Payment Schedule (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosurePropertyPlantAndEquipmentScheduleOfFutureMinimumLeasePaymentSchedule
1094 Disclosure of recognised finance lease as assets by lessee [table] Table

*

*

ifrs-full:DisclosureOfRecognisedFinanceLeaseAsAssetsByLesseeTable
1095 Maturity [axis] Axis ifrs-full:MaturityAxis
1096 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
1097 Less than 1 year [member] Member ifrs-full:NotLaterThanOneYearMember
1098 1 to 3 years [member] Member ifrs-full:LaterThanOneYearAndNotLaterThanThreeYearsMember
1099 3 to 5 years [member] Member ifrs-full:LaterThanThreeYearsAndNotLaterThanFiveYearsMember
1100 More than 5 years [member] Member ifrs-full:LaterThanFiveYearsMember
1101 Disclosure of recognised finance lease as assets by lessee [line items] LineItems ifrs-full:DisclosureOfRecognisedFinanceLeaseAsAssetsByLesseeLineItems
1102 Principal Concept (Monetary) As Of Credit sny:FinanceLeaseObligationsPrincipal
1103 Interest Concept (Monetary) As Of Credit sny:FinanceLeaseObligationsInterest
1104 Total Concept (Monetary) As Of Credit sny:FinanceLeaseObligationsTotal
1105 1121 - Disclosure - Goodwill and Other Intangible Assets - Schedule of Movements in Goodwill (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureGoodwillAndOtherIntangibleAssetsScheduleOfMovementsInGoodwill
1106 Disclosure of reconciliation of changes in goodwill [table] Table

*

*

ifrs-full:DisclosureOfReconciliationOfChangesInGoodwillTable
1107 Classes of intangible assets and goodwill [axis] Axis ifrs-full:ClassesOfIntangibleAssetsAndGoodwillAxis
1108 Intangible assets and goodwill [member] Member ifrs-full:IntangibleAssetsAndGoodwillMember
1109 Goodwill [member] Member ifrs-full:GoodwillMember
1110 Disclosure of reconciliation of changes in goodwill [line items] LineItems ifrs-full:DisclosureOfReconciliationOfChangesInGoodwillLineItems
1111 Beginning balance Concept (Monetary) As Of Debit ifrs-full:IntangibleAssetsAndGoodwill
1112 Acquisitions during the period Concept (Monetary) For Period Debit ifrs-full:AcquisitionsThroughBusinessCombinationsIntangibleAssetsAndGoodwill
1113 Other movements during the period Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughOtherChangesIntangibleAssetsAndGoodwill
1114 Currency translation differences Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsAndGoodwill
1115 Ending balance Concept (Monetary) As Of Debit ifrs-full:IntangibleAssetsAndGoodwill
1116 1122 - Disclosure - Goodwill and Other Intangible Assets - Additional Information (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureGoodwillAndOtherIntangibleAssetsAdditionalInformation
1117 Disclosure of reconciliation of changes in goodwill [table] Table

*

*

ifrs-full:DisclosureOfReconciliationOfChangesInGoodwillTable
1118 Business Combinations [Axis] Axis ifrs-full:BusinessCombinationsAxis
1119 Entity's total for business combinations [member] Member ifrs-full:EntitysTotalForBusinessCombinationsMember
1120 Lyxumia and Soliqua [member] Member sny:LyxumiaAndSoliquaMember
1121 Immuno-oncology product Libtayo [member] Member sny:ImmunooncologyProductLibtayoMember
1122 Bioverativ [member] Member sny:BioverativMember
1123 Ablynx N.V [member] Member sny:AblynxMember
1124 Acquisition of Boehringer Inhelheim's Consumer Healthcare business [member] Member sny:CHCBusinessAcquiredFromBiMember
1125 Protein Sciences [member] Member sny:ProteinSciencesMember
1126 Classes of intangible assets other than goodwill [axis] Axis ifrs-full:ClassesOfIntangibleAssetsOtherThanGoodwillAxis
1127 Intangible assets other than goodwill [member] Member ifrs-full:IntangibleAssetsOtherThanGoodwillMember
1128 Acquired in process R and D [member] Member sny:AcquiredInProcessRAndDMember
1129 Marketed products [member] Member sny:MarketedProductsMember
1130 Trademarks [member] Member sny:Trademarks1Member
1131 Classes of intangible assets and goodwill [axis] Axis ifrs-full:ClassesOfIntangibleAssetsAndGoodwillAxis
1132 Intangible assets and goodwill [member] Member ifrs-full:IntangibleAssetsAndGoodwillMember
1133 Intangible assets excluding software [member] Member sny:IntangibleAssetsExcludingSoftwareMember
1134 Disclosure of reconciliation of changes in goodwill [line items] LineItems ifrs-full:DisclosureOfReconciliationOfChangesInGoodwillLineItems
1135 Identifiable intangible assets recognised as of acquisition date Concept (Monetary) As Of Debit ifrs-full:IdentifiableIntangibleAssetsRecognisedAsOfAcquisitionDate
1136 Goodwill Concept (Monetary) As Of Debit ifrs-full:Goodwill
1137 Weighted average amortization period Concept (Text/String) For Period ifrs-full:UsefulLivesOrAmortisationRatesIntangibleAssetsOtherThanGoodwill
1138 Concentration risk percentage Concept (Percent) For Period sny:ConcentrationRiskThresholdPercentage
1139 Additions other than through business combinations, intangible assets other than goodwill Concept (Monetary) For Period Debit ifrs-full:AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill
1140 Acquired R and D starting to be amortized in the period Concept (Monetary) As Of Debit sny:AcquiredRAndDStartingToBeAmortizedInThePeriod
1141 1123 - Disclosure - Goodwill and Other Intangible Assets - Schedule of Movements in Other Intangible Assets (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureGoodwillAndOtherIntangibleAssetsScheduleOfMovementsInOtherIntangibleAssets
1142 Disclosure of detailed information about intangible assets [table] Table

*

*

ifrs-full:DisclosureOfIntangibleAssetsTable
1143 Classes of intangible assets other than goodwill [axis] Axis ifrs-full:ClassesOfIntangibleAssetsOtherThanGoodwillAxis
1144 Intangible assets other than goodwill [member] Member ifrs-full:IntangibleAssetsOtherThanGoodwillMember
1145 Acquired R and D [member] Member sny:AcquiredRAndDMember
1146 Marketed products, trademarks and other rights [member] Member sny:MarketedProductsTrademarksAndOtherRightsMember
1147 Software [member] Member ifrs-full:ComputerSoftwareMember
1148 Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Axis ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis
1149 Carrying amount [member] Member ifrs-full:CarryingAmountMember
1150 Gross value [member] Member ifrs-full:GrossCarryingAmountMember
1151 Accumulated depreciation and amortisation [member] Member ifrs-full:AccumulatedDepreciationAmortisationAndImpairmentMember
1152 Disclosure of detailed information about intangible assets [line items] LineItems ifrs-full:DisclosureOfIntangibleAssetsLineItems
1153 Other intangible assets, Beginning balance Concept (Monetary) As Of Debit ifrs-full:OtherIntangibleAssets
1154 Changes in scope of consolidation Concept (Monetary) For Period Debit ifrs-full:AcquisitionsThroughBusinessCombinationsIntangibleAssetsAndGoodwill
1155 Amortization expense Concept (Monetary) For Period sny:AmortisationOfIntangibleAssetsOtherThanGoodwill
1156 Acquisitions and other increases Concept (Monetary) For Period Debit ifrs-full:AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill
1157 Impairment losses, net of reversals Concept (Monetary) For Period ifrs-full:ImpairmentLossRecognisedInOtherComprehensiveIncomeIntangibleAssetsOtherThanGoodwill
1158 Disposals and other decreases Concept (Monetary) For Period Credit ifrs-full:DisposalsAndRetirementsIntangibleAssetsAndGoodwill
1159 Currency translation differences Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsAndGoodwill
1160 Transfers Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughTransfersIntangibleAssetsAndGoodwill
1161 Other intangible assets, Ending balance Concept (Monetary) As Of Debit ifrs-full:OtherIntangibleAssets
1162 1124 - Disclosure - Goodwill and Other Intangible Assets - Detailed Information for Principal Marketed Products (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureGoodwillAndOtherIntangibleAssetsDetailedInformationForPrincipalMarketedProducts
1163 Disclosure of detailed information about intangible assets [table] Table

*

*

ifrs-full:DisclosureOfIntangibleAssetsTable
1164 Classes of intangible assets other than goodwill [axis] Axis ifrs-full:ClassesOfIntangibleAssetsOtherThanGoodwillAxis
1165 Intangible assets other than goodwill [member] Member ifrs-full:IntangibleAssetsOtherThanGoodwillMember
1166 Genzyme [member] Member sny:PrincipalMarketedProductsGenzymeMember
1167 Principal Marketed Products Boehringer Ingelheim Consumer Healthcare [Member] Member sny:PrincipalMarketedProductsBoehringeringelheimConsumerHealthcareMember
1168 Aventis [member] Member sny:PrincipalMarketedProductsAventisMember
1169 Chattem [member] Member sny:PrincipalMarketedProductsChattemMember
1170 Principal marketed products Protein Sciences [member] Member sny:PrincipalMarketedProductsProteinSciencesMember
1171 Principal marketed products [member] Member sny:PrincipalMarketedProductsMember
1172 Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Axis ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis
1173 Carrying amount [member] Member ifrs-full:CarryingAmountMember
1174 Gross value [member] Member ifrs-full:GrossCarryingAmountMember
1175 Accumulated depreciation and amortisation [member] Member ifrs-full:AccumulatedDepreciationAmortisationAndImpairmentMember
1176 Business Combinations [Axis] Axis ifrs-full:BusinessCombinationsAxis
1177 Entity's total for business combinations [member] Member ifrs-full:EntitysTotalForBusinessCombinationsMember
1178 Bioverativ [member] Member sny:BioverativMember
1179 Disclosure of detailed information about intangible assets [line items] LineItems ifrs-full:DisclosureOfIntangibleAssetsLineItems
1180 Other intangible assets Concept (Monetary) As Of Debit ifrs-full:IntangibleAssetsOtherThanGoodwill
1181 Useful lives or amortisation rates, intangible assets other than goodwill Concept (Text/String) For Period ifrs-full:UsefulLivesOrAmortisationRatesIntangibleAssetsOtherThanGoodwill
1182 Residual amortization period (years) Concept (Decimal) As Of ifrs-full:RemainingAmortisationPeriodOfIntangibleAssetsMaterialToEntity
1183 1125 - Disclosure - Goodwill and Other Intangible Assets - Detailed Information for Principal Marketed Products (Parenthetical) (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureGoodwillAndOtherIntangibleAssetsDetailedInformationForPrincipalMarketedProductsParenthetical
1184 Implied Table Table

*

*

implied:Table
1185 Disclosure of detailed information about intangible assets [abstract] Abstract ifrs-full:DisclosureOfIntangibleAssetsAbstract
1186 Weighted average amortization period Concept (Text/String) For Period ifrs-full:UsefulLivesOrAmortisationRatesIntangibleAssetsOtherThanGoodwill
1187 1126 - Disclosure - Goodwill and Other Intangible Assets - Amortization of Softwares Recognized in Income Statement (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureGoodwillAndOtherIntangibleAssetsAmortizationOfSoftwaresRecognizedInIncomeStatement
1188 Disclosure of detailed information about intangible assets [table] Table

*

*

ifrs-full:DisclosureOfIntangibleAssetsTable
1189 Expense Categories [Axis] Axis sny:ExpenseCategoriesAxis
1190 Expense Categories [Domain] Member sny:ExpenseCategoriesDomain
1191 Amortization of computer software and other rights of an industrial or operational nature [member] Member sny:AmortizationOfComputerSoftwareAndOtherRightsOfAnIndustrialOrOperationalNatureMember
1192 Disclosure of detailed information about intangible assets [line items] LineItems ifrs-full:DisclosureOfIntangibleAssetsLineItems
1193 Cost of sales Concept (Monetary) For Period Debit ifrs-full:CostOfSales
1194 Research and development expenses Concept (Monetary) For Period Debit ifrs-full:ResearchAndDevelopmentExpense
1195 Selling and general expenses Concept (Monetary) For Period Debit ifrs-full:SellingGeneralAndAdministrativeExpense
1196 Other operating expenses Concept (Monetary) For Period Debit ifrs-full:MiscellaneousOtherOperatingExpense
1197 Amortization of intangible assets Concept (Monetary) For Period ifrs-full:AmortisationIntangibleAssetsOtherThanGoodwill
1198 1127 - Disclosure - Impairment of Intangible Assets and Property, Plant and Equipment - Schedule of Allocation of Goodwill (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureImpairmentOfIntangibleAssetsAndPropertyPlantAndEquipmentScheduleOfAllocationOfGoodwill
1199 Disclosure of reconciliation of changes in goodwill [table] Table

*

*

ifrs-full:DisclosureOfReconciliationOfChangesInGoodwillTable
1200 Segments [axis] Axis ifrs-full:SegmentsAxis
1201 Segments [member] Member ifrs-full:SegmentsMember
1202 Pharmaceuticals [member] Member sny:PharmaceuticalsMember
1203 Consumer Healthcare [member] Member sny:ConsumerHealthcareMember
1204 Vaccines [member] Member sny:VaccinesMember
1205 Disclosure of reconciliation of changes in goodwill [line items] LineItems ifrs-full:DisclosureOfReconciliationOfChangesInGoodwillLineItems
1206 Goodwill Concept (Monetary) As Of Debit ifrs-full:Goodwill
1207 1128 - Disclosure - Impairment of Intangible Assets and Property, Plant and Equipment - Additional Information (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureImpairmentOfIntangibleAssetsAndPropertyPlantAndEquipmentAdditionalInformation
1208 Disclosure of impairment loss and reversal of impairment loss [table] Table

*

*

ifrs-full:DisclosureOfImpairmentLossAndReversalOfImpairmentLossTable
1209 Segments [axis] Axis ifrs-full:SegmentsAxis
1210 Segments [member] Member ifrs-full:SegmentsMember
1211 Pharmaceuticals [member] Member sny:PharmaceuticalsSegmentMember
1212 Vaccines [member] Member sny:VaccinesMember
1213 Consumer Healthcare [member] Member sny:ConsumerHealthcareMember
1214 Vaccines [member] Member sny:VaccinesSegmentMember
1215 Cash-generating units [axis] Axis ifrs-full:IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesAxis
1216 Entity's total for cash-generating units [member] Member ifrs-full:EntitysTotalForCashgeneratingUnitsMember
1217 Cash-generating units [member] Member ifrs-full:IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesMember
1218 Classes of assets [axis] Axis ifrs-full:ClassesOfAssetsAxis
1219 Assets [member] Member ifrs-full:ClassesOfAssetsMember
1220 CGUs [member] Member sny:CashGeneratingUnitsMember
1221 Classes of intangible assets and goodwill [axis] Axis ifrs-full:ClassesOfIntangibleAssetsAndGoodwillAxis
1222 Intangible assets and goodwill [member] Member ifrs-full:IntangibleAssetsAndGoodwillMember
1223 Goodwill [member] Member ifrs-full:GoodwillMember
1224 Range [axis] Axis ifrs-full:RangeAxis
1225 Ranges [member] Member ifrs-full:RangesMember
1226 Bottom of range [member] Member ifrs-full:BottomOfRangeMember
1227 Top of range [member] Member ifrs-full:TopOfRangeMember
1228 Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Axis ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis
1229 Carrying amount [member] Member ifrs-full:CarryingAmountMember
1230 Gross value [member] Member ifrs-full:GrossCarryingAmountMember
1231 Disclosure of impairment loss and reversal of impairment loss [line items] LineItems ifrs-full:DisclosureOfImpairmentLossAndReversalOfImpairmentLossLineItems
1232 Rate used for Impairment of goodwill Concept (Percent) For Period sny:ImpairmentTestingPercentage
1233 Uniform impairment testing percentage Concept (Percent) For Period sny:UniformImpairmentTestingPercentage
1234 Pre-tax discount rates Concept (Percent) For Period sny:PretaxDiscountRateAppliedForGoodwill
1235 Uniform pre-tax discount rates Concept (Percent) For Period sny:UniformPretaxDiscountRates
1236 Perpetual growth rates applied to future cash flows Concept (Percent) As Of ifrs-full:DescriptionOfGrowthRateUsedToExtrapolateCashFlowProjections
1237 Impairment of goodwill recognized Concept (Monetary) For Period ifrs-full:ImpairmentLossRecognisedInProfitOrLossGoodwill
1238 Discount rate Concept (Percent) For Period sny:PercentageOfDiscountRateAboveRateActuallyUsedWouldNotCauseImpairmentLoss
1239 Perpetual growth rate Concept (Percent) For Period sny:PercentageOfPerpetuityGrowthRateBelowTheRatesActuallyUsedWouldNotCauseImpairmentLoss
1240 Operating margin rate Concept (Percent) For Period sny:PercentageOfOperatingMarginRateBelowRatesActuallyUsedWouldNotCauseImpairmentLoss
1241 After-tax discount rates Concept (Percent) For Period sny:AfterTaxDiscountRates
1242 Carrying amount of intangible assets Concept (Monetary) As Of Debit ifrs-full:IntangibleAssetsOtherThanGoodwill
1243 Write-down of asset Concept (Monetary) For Period ifrs-full:InventoryWritedown2011
1244 Contract termination penalties Concept (Monetary) For Period Debit ifrs-full:TerminationBenefitsExpense
1245 1129 - Disclosure - Impairment of Intangible Assets and Property, Plant and Equipment -Summary of Net Impairment Losses of Other Intangible Assets (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureImpairmentOfIntangibleAssetsAndPropertyPlantAndEquipmentSummaryOfNetImpairmentLossesOfOtherIntangibleAssets
1246 Disclosure of impairment loss and reversal of impairment loss [table] Table

*

*

ifrs-full:DisclosureOfImpairmentLossAndReversalOfImpairmentLossTable
1247 Segments [axis] Axis ifrs-full:SegmentsAxis
1248 Segments [member] Member ifrs-full:SegmentsMember
1249 Pharmaceuticals [member] Member sny:PharmaceuticalsSegmentMember
1250 Vaccines [member] Member sny:VaccinesSegmentMember
1251 Other segments [member] Member sny:OtherSegmentsMember
1252 Classes of intangible assets other than goodwill [axis] Axis ifrs-full:ClassesOfIntangibleAssetsOtherThanGoodwillAxis
1253 Intangible assets other than goodwill [member] Member ifrs-full:IntangibleAssetsOtherThanGoodwillMember
1254 Other intangible assets [member] Member ifrs-full:OtherIntangibleAssetsMember
1255 Products and services [axis] Axis ifrs-full:ProductsAndServicesAxis
1256 Products and services [member] Member ifrs-full:ProductsAndServicesMember
1257 Marketed products [member] Member sny:MarketedProductsMember
1258 Research and development [member] Member sny:ResearchAndDevelopmentMember
1259 Disclosure of impairment loss and reversal of impairment loss [line items] LineItems ifrs-full:DisclosureOfImpairmentLossAndReversalOfImpairmentLossLineItems
1260 Impairment of other intangible assets Concept (Monetary) For Period Debit sny:ImpairmentLossOnIntangibleAssetsOtherThanGoodwill
1261 1130 - Disclosure - Impairment of Intangible Assets and Property, Plant and Equipment -Summary of Net Impairment Losses of Other Intangible Assets (Parenthetical) (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureImpairmentOfIntangibleAssetsAndPropertyPlantAndEquipmentSummaryOfNetImpairmentLossesOfOtherIntangibleAssetsParenthetical
1262 Disclosure of impairment loss and reversal of impairment loss [table] Table

*

*

ifrs-full:DisclosureOfImpairmentLossAndReversalOfImpairmentLossTable
1263 Classes of intangible assets other than goodwill [axis] Axis ifrs-full:ClassesOfIntangibleAssetsOtherThanGoodwillAxis
1264 Intangible assets other than goodwill [member] Member ifrs-full:IntangibleAssetsOtherThanGoodwillMember
1265 Other intangible assets [member] Member ifrs-full:OtherIntangibleAssetsMember
1266 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
1267 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
1268 US [member] Member country:US
1269 Products and services [axis] Axis ifrs-full:ProductsAndServicesAxis
1270 Products and services [member] Member ifrs-full:ProductsAndServicesMember
1271 Marketed product Lemtrada [member] Member sny:MarketedProductLemtradaMember
1272 Disclosure of impairment loss and reversal of impairment loss [line items] LineItems ifrs-full:DisclosureOfImpairmentLossAndReversalOfImpairmentLossLineItems
1273 Impairment of other intangible assets Concept (Monetary) For Period Debit sny:ImpairmentLossOnIntangibleAssetsOtherThanGoodwillExcludingSoftware
1274 1131 - Disclosure - Investments in Associates and Joint Ventures - Summary of Investments in Associates and Joint Ventures (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureInvestmentsInAssociatesAndJointVenturesSummaryOfInvestmentsInAssociatesAndJointVentures
1275 Disclosure of transactions between related parties [table] Table

*

*

ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesTable
1276 Significant Investments In Joint Ventures [Axis] Axis sny:SignificantInvestmentsInJointVenturesAxis
1277 Significant Investments In Joint Ventures [Member] Member sny:SignificantInvestmentsInJointVenturesMember
1278 Regeneron Pharmaceuticals, Inc. [member] Member sny:RegeneronPharmaceuticalsIncMember
1279 Onduo LLC [member] Member sny:OnduoLLCMember
1280 Infraserv Gmbh and Co Hochst KG [member] Member sny:InfraservGmbhAndCoHochstKGMember
1281 Entities and companies managed by Bristol Mayers Squibb [member] Member sny:EntitiesAndCompaniesManagedByBristolMyersSquibbMember
1282 Other investments [member] Member ifrs-full:AggregatedIndividuallyImmaterialAssociatesMember
1283 Disclosure of transactions between related parties [line items] LineItems ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesLineItems
1284 Proportion of voting rights held in associate Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestInAssociate
1285 Proportion of voting rights held in associate Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestInJointVenture
1286 Investments in associates Concept (Monetary) As Of Debit ifrs-full:InvestmentsInAssociates
1287 1132 - Disclosure - Investments in Associates and Joint Ventures - Summary of Share of Profit or Loss and Other Comprehensive Income of Associates and Joint Ventures (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureInvestmentsInAssociatesAndJointVenturesSummaryOfShareOfProfitOrLossAndOtherComprehensiveIncomeOfAssociatesAndJointVentures
1288 Disclosure of transactions between related parties [table] Table

*

*

ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesTable
1289 Significant Investments In Joint Ventures [Axis] Axis sny:SignificantInvestmentsInJointVenturesAxis
1290 Significant Investments In Joint Ventures [Member] Member sny:SignificantInvestmentsInJointVenturesMember
1291 Joint ventures [member] Member ifrs-full:JointVenturesMember
1292 Associates [member] Member ifrs-full:AssociatesMember
1293 Disclosure of transactions between related parties [line items] LineItems ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesLineItems
1294 Share of profit/(loss) from investments accounted for using the equity method Concept (Monetary) For Period Credit ifrs-full:ShareOfProfitLossOfJointVenturesAccountedForUsingEquityMethod
1295 Share of other comprehensive income from investments accounted for using the equity method Concept (Monetary) For Period Credit ifrs-full:ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodBeforeTax
1296 Total Concept (Monetary) For Period Credit sny:TotalShareOfProfitAndComprehensiveIncomeOfAssociatesAndJointVentures
1297 1133 - Disclosure - Investments in Associates and Joint Ventures - Summary of Principal Transactions and Balances with Related Parties (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureInvestmentsInAssociatesAndJointVenturesSummaryOfPrincipalTransactionsAndBalancesWithRelatedParties
1298 Disclosure of transactions between related parties [table] Table

*

*

ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesTable
1299 Categories of Related Parties [Axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
1300 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
1301 Associates and joint ventures [member] Member sny:AssociatesAndJointVenturesMember
1302 Disclosure of transactions between related parties [line items] LineItems ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesLineItems
1303 Sales Concept (Monetary) For Period Credit ifrs-full:RevenueFromSaleOfGoodsRelatedPartyTransactions
1304 Royalties and other income Concept (Monetary) For Period Credit sny:RoyaltiesAndOtherIncomeRelatedPartyTransactions
1305 Accounts receivable and other receivables Concept (Monetary) As Of Debit ifrs-full:AmountsReceivableRelatedPartyTransactions
1306 Purchases and other expenses (including research expenses) Concept (Monetary) For Period Debit ifrs-full:PurchasesOfGoodsRelatedPartyTransactions
1307 Accounts payable and other payables Concept (Monetary) As Of Credit ifrs-full:AmountsPayableRelatedPartyTransactions
1308 1134 - Disclosure - Investments in Associates and Joint Ventures - Additional Information (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureInvestmentsInAssociatesAndJointVenturesAdditionalInformation
1309 Disclosure of transactions between related parties [table] Table

*

*

ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesTable
1310 Categories of Related Parties [Axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
1311 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
1312 Associates and joint ventures [member] Member sny:AssociatesAndJointVenturesMember
1313 Disclosure of transactions between related parties [line items] LineItems ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesLineItems
1314 Funding commitments to associates and joint ventures Concept (Monetary) As Of Credit sny:CommitmentsMadeToJointVenturesAndAssociates
1315 1135 - Disclosure - Investments in Associates and Joint Ventures - Summary of Financial Statements of Regeneron, After Adjustments to Comply With IFRS But Before Fair Value Remeasurements (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureInvestmentsInAssociatesAndJointVenturesSummaryOfFinancialStatementsOfRegeneronAfterAdjustmentsToComplyWithIFRSButBeforeFairValueRemeasurements
1316 Disclosure of transactions between related parties [table] Table

*

*

ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesTable
1317 Associates [axis] Axis ifrs-full:SignificantInvestmentsInAssociatesAxis
1318 Entity's total for associates [member] Member ifrs-full:EntitysTotalForAssociatesMember
1319 Regeneron [member] Member sny:RegeneronMember
1320 Disclosure of transactions between related parties [line items] LineItems ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesLineItems
1321 Net sales and other revenues Concept (Monetary) For Period Credit ifrs-full:Revenue
1322 Net income Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
1323 Other comprehensive income for the period, net of taxes Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncome
1324 Comprehensive income Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncome
1325 Current assets Concept (Monetary) As Of Debit ifrs-full:CurrentAssets
1326 Non-current assets Concept (Monetary) As Of Debit ifrs-full:NoncurrentAssets
1327 Total assets Concept (Monetary) As Of Debit ifrs-full:Assets
1328 Current liabilities Concept (Monetary) As Of Credit ifrs-full:CurrentLiabilities
1329 Non-current liabilities Concept (Monetary) As Of Credit ifrs-full:NoncurrentLiabilities
1330 Total liabilities Concept (Monetary) As Of Credit ifrs-full:Liabilities
1331 Total equity Concept (Monetary) As Of Credit ifrs-full:Equity
1332 1136 - Disclosure - Investments in Associates and Joint Ventures - Summary of Reconciliation to Carrying Amount of Investment (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureInvestmentsInAssociatesAndJointVenturesSummaryOfReconciliationToCarryingAmountOfInvestment
1333 Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [table] Table

*

*

ifrs-full:DisclosureOfReconciliationOfChangesInLossAllowanceAndExplanationOfChangesInGrossCarryingAmountForFinancialInstrumentsTable
1334 Associates [axis] Axis ifrs-full:SignificantInvestmentsInAssociatesAxis
1335 Entity's total for associates [member] Member ifrs-full:EntitysTotalForAssociatesMember
1336 Regeneron [member] Member sny:RegeneronMember
1337 Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items] LineItems ifrs-full:DisclosureOfReconciliationOfChangesInLossAllowanceAndExplanationOfChangesInGrossCarryingAmountForFinancialInstrumentsLineItems
1338 Percentage of interest in associate Concept (Percent) For Period ifrs-full:ProportionOfVotingPowerHeldInAssociate
1339 Share of equity attributable to Sanofi Concept (Monetary) As Of Credit ifrs-full:EquityAttributableToOwnersOfParent
1340 Goodwill Concept (Monetary) As Of Debit ifrs-full:Goodwill
1341 Fair value remeasurements of assets and liabilities at the acquisition date Concept (Monetary) As Of Debit sny:FairValueRemeasurementsOfAssetsAndLiabilitiesAtTheAcquisitionDate
1342 Other items Concept (Monetary) As Of Debit sny:OtherItems
1343 Carrying amount of the investment in Regeneron Concept (Monetary) As Of Debit ifrs-full:InvestmentsInAssociates
1344 1137 - Disclosure - Investments in Associates and Joint Ventures -Summary of Market Value of Sanofi's Investment in Regeneron Based on Quoted Stock Market Price Per Share (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureInvestmentsInAssociatesAndJointVenturesSummaryOfMarketValueOfSanofisInvestmentInRegeneronBasedOnQuotedStockMarketPricePerShare
1345 Disclosure of transactions between related parties [table] Table

*

*

ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesTable
1346 Categories of Related Parties [Axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
1347 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
1348 Regeneron [member] Member sny:RegeneronMember
1349 Disclosure of transactions between related parties [line items] LineItems ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesLineItems
1350 Quoted stock market price per share ($) Concept (Share) As Of sny:StockMarketPricePerShare
1351 Market value of investment in Regeneron ($ million) Concept (Monetary) As Of Debit ifrs-full:FairValueOfInvestmentsInAssociatesWherePriceQuotationsPublished
1352 1138 - Disclosure - Other Non-Current Assets - Summary of Other Non-current Assets (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureOtherNonCurrentAssetsSummaryOfOtherNoncurrentAssets
1353 Disclosure Of Other Non-current Assets [Table] Table

*

*

sny:DisclosureOfOtherNoncurrentAssetsTable
1354 Retrospective application and retrospective restatement [axis] Axis ifrs-full:RetrospectiveApplicationAndRetrospectiveRestatementAxis
1355 Currently stated [member] Member ifrs-full:RestatedMember
1356 IFRS9 [member] Member sny:IFRS9Member
1357 Previously Reported [member] Member sny:PreviouslyReportedMember
1358 Classes of assets [axis] Axis ifrs-full:ClassesOfAssetsAxis
1359 Assets [member] Member ifrs-full:ClassesOfAssetsMember
1360 Trading equity securities [member] Member ifrs-full:TradingEquitySecuritiesMember
1361 Debt securities [member] Member ifrs-full:DebtSecuritiesMember
1362 Disclosure Of Other Non Current Assets [Line Items] LineItems sny:DisclosureOfOtherNonCurrentAssetsLineItems
1363 Available-for-sale financial assets Concept (Monetary) As Of Debit ifrs-full:NoncurrentFinancialAssetsAvailableforsale
1364 Financial assets recognized under the fair value option Concept (Monetary) As Of Debit sny:FinancialAssetsRecognizedUnderTheFairValueOption
1365 Fair value through other comprehensive income Concept (Monetary) As Of Debit ifrs-full:NoncurrentFinancialAssetsAtFairValueThroughOtherComprehensiveIncome
1366 Other financial assets at fair value through profit or loss Concept (Monetary) As Of Debit sny:OtherFinancialAssetsAtFairValueThroughProfitOrLoss
1367 Pre-funded pension obligations Concept (Monetary) As Of Debit sny:PrefundedPensionObligations
1368 Long-term prepaid expenses Concept (Monetary) As Of Debit sny:LongTermPrepaidExpenses
1369 Long-term loans and advances and other non-current receivables Concept (Monetary) As Of Debit ifrs-full:NoncurrentLoansAndReceivables
1370 Derivative financial instruments Concept (Monetary) As Of Debit ifrs-full:NoncurrentDerivativeFinancialAssets
1371 Other non-current assets Concept (Monetary) As Of Debit ifrs-full:OtherNoncurrentAssets
1372 1139 - Disclosure - Other Non-Current Assets - Additional Information (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureOtherNonCurrentAssetsAdditionalInformation
1373 Disclosure Of Other Non-current Assets [Table] Table

*

*

sny:DisclosureOfOtherNoncurrentAssetsTable
1374 Classes of assets [axis] Axis ifrs-full:ClassesOfAssetsAxis
1375 Assets [member] Member ifrs-full:ClassesOfAssetsMember
1376 Other available for sale financial instruments [member] Member sny:OtherAvailableForSaleFinancialAssetsMember
1377 Securities quoted in an active market [member] Member sny:SecuritiesQuotedInAnActiveMarketMember
1378 Unquoted equity investments [member] Member sny:UnquotedEquityInvestmentsMember
1379 SPMSD contingent consideration asset [member] Member sny:SPMSDContingentConsiderationAssetMember
1380 Non current asset [member] Member sny:NonCurrentAssetMember
1381 Fair Value Remeasurement Of Contingent Consideration [member] Member sny:FairValueRemeasurementOfContingentConsiderationMember
1382 Quoted debt instruments [member] Member sny:QuotedDebtInstrumentsMember
1383 Quoted equity securities [member] Member sny:QuotedEquitySecuritiesMember
1384 Investment [Axis] Axis invest:InvestmentAxis
1385 Investment [Domain] Member invest:InvestmentDomain
1386 Alnylam Pharmaceuticals, Inc [member] Member sny:AlnylamPharmaceuticalsIncMember
1387 MyoKardia, Inc [Member] Member sny:MyokardiaIncMember
1388 Measurement [axis] Axis ifrs-full:MeasurementAxis
1389 Aggregated measurement [member] Member ifrs-full:AggregatedMeasurementMember
1390 Sensitivity to ten percent decline in market interest rates on debt instruments held to meet obligations to employees under post employment benefit plans [member] Member sny:SensitivityToTenPercentDeclineInMarketInterestRatesOnDebtInstrumentsHeldToMeetObligationsToEmployeesUnderPostEmploymentBenefitPlansMember
1391 Reduction of ten percent basis point in market interest rate [member] Member sny:ReductionOfTenPercentBasisPointInMarketInterestRateMember
1392 Categories of Financial Assets [Axis] Axis ifrs-full:CategoriesOfFinancialAssetsAxis
1393 Financial assets, category [member] Member ifrs-full:FinancialAssetsCategoryMember
1394 Quoted euro denominated senior bonds [member] Member sny:QuotedEuroDenominatedSeniorBondsMember
1395 Financial assets held to meet obligations under post-employment benefit plans [member] Member sny:FinancialAssetsHeldToMeetObligationsUnderPostemploymentBenefitPlansMember
1396 Financial instruments held to fund deferred compensation plan [member] Member sny:FinancialAssetsHeldToFundDeferredCompensationPlanMember
1397 Other Financial assets at fair value through profit or loss [member] Member sny:OtherFinancialAssetsAtFairValueThroughProfitOrLossMember
1398 Senior bond [member] Member sny:SeniorBondMember
1399 Non-adjusting events after reporting period [axis] Axis ifrs-full:NonadjustingEventsAfterReportingPeriodAxis
1400 Non-adjusting events after reporting period [member] Member ifrs-full:NonadjustingEventsMember
1401 Revisions of sales forecasts of SPMSD [member] Member sny:RevisionsOfSalesForecastsOfSPMSDMember
1402 Financial instruments measured at fair value through profit or loss because credit derivative is used to manage credit risk [axis] Axis ifrs-full:FinancialInstrumentsMeasuredAtFairValueThroughProfitOrLossBecauseCreditDerivativeIsUsedToManageCreditRiskAxis
1403 Financial instruments measured at fair value through profit or loss because credit derivative is used to manage credit risk [member] Member ifrs-full:FinancialInstrumentsMeasuredAtFairValueThroughProfitOrLossBecauseCreditDerivativeIsUsedToManageCreditRiskMember
1404 Fair value of SPMSD contingent consideration [member] Member sny:FairValueOfSpmsdContingentConsiderationMember
1405 Disclosure Of Other Non Current Assets [Line Items] LineItems sny:DisclosureOfOtherNonCurrentAssetsLineItems
1406 Percentage of decrease in share price Concept (Percent) For Period sny:PercentageOfDecreaseInSharePrice
1407 Impairment loss on financial assets Concept (Monetary) For Period Debit ifrs-full:ImpairmentLossOnFinancialAssets
1408 Non-current financial assets available-for-sale Concept (Monetary) As Of Debit ifrs-full:NoncurrentFinancialAssetsAvailableforsale
1409 Equity investment Concept (Percent) As Of sny:EquityInvestmentInNoncurrentFinancialAssetsAvailableForSale
1410 Other comprehensive income before tax Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeBeforeTax
1411 Equity instruments at fair value through other comprehensive income Concept (Monetary) As Of Debit ifrs-full:FairValueOfInvestmentsInEquityInstrumentsDesignatedAsMeasuredAtFairValueThroughOtherComprehensiveIncome
1412 Debt instruments at fair value through other comprehensive income Concept (Monetary) As Of Debit ifrs-full:FinancialAssetsAtFairValueThroughOtherComprehensiveIncome
1413 Exchange for financial assets held to meet obligations to employees under post-employment benefit plans Concept (Monetary) As Of Debit ifrs-full:NoncurrentAssetsOtherThanFinancialInstrumentsDeferredTaxAssetsPostemploymentBenefitAssetsAndRightsArisingUnderInsuranceContracts
1414 Financial assets held for investments Concept (Monetary) As Of Debit ifrs-full:HeldtomaturityInvestments
1415 Unrealized after-tax losses Concept (Monetary) For Period Debit sny:UnrealizedGainsLossesOnSecuritiesMeasuredAtFairValueThroughOtherComprehensiveIncomeThatWillBeReclassifiedToProfitAndLossRecognizedInEquity
1416 Increase in contingent consideration Concept (Percent) As Of sny:IncreaseInContingentConsideration
1417 Fair value of the contingent consideration Concept (Monetary) As Of sny:FairValueOfTheContingentConsideration
1418 Adjustment to the fair value of the assets Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseInFairValueMeasurementAssets
1419 Financial investments Concept (Monetary) As Of Debit sny:FinancialInvestments
1420 Divested investments Concept (Monetary) For Period Credit sny:Divestmentofinvestments
1421 Gain from divestmentssset Concept (Monetary) For Period Credit sny:GainLossesFromDivestments
1422 1140 - Disclosure - Assets Held for Sale or Exchange and Liabilities Related to Assets Held for Sale or Exchange - Summary of Assets Held for Sale or Exchange, and Liabilities Related to Assets Held for Sale or Exchange (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureAssetsHeldForSaleOrExchangeAndLiabilitiesRelatedToAssetsHeldForSaleOrExchangeSummaryOfAssetsHeldForSaleOrExchangeAndLiabilitiesRelatedToAssetsHeldForSaleOrExchange
1423 Assets and Liabilities Held for Sale [Table] Table

*

*

sny:AssetsAndLiabilitiesHeldForSaleTable
1424 Continuing and discontinued operations [axis] Axis ifrs-full:ContinuingAndDiscontinuedOperationsAxis
1425 Aggregate continuing and discontinued operations [member] Member ifrs-full:AggregateContinuingAndDiscontinuedOperationsMember
1426 Animal Health Business [member] Member sny:AnimalHealthBusinessMember
1427 Other discontinued operations [member] Member sny:OtherDiscontinuedOperationsMember
1428 Assets and liabilities held for sale [line items] LineItems sny:AssetsAndLiabilitiesHeldForSaleLineItems
1429 Assets held for sale or exchange Concept (Monetary) As Of Debit ifrs-full:NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSale
1430 Liabilities related to assets held for sale or exchange Concept (Monetary) As Of Credit ifrs-full:LiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSale
1431 1141 - Disclosure - Inventories - Schedule of Inventories (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureInventoriesScheduleOfInventories
1432 Disclosure of inventories [table] Table

*

*

sny:DisclosureOfInventoriesTable
1433 Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Axis ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis
1434 Carrying amount [member] Member ifrs-full:CarryingAmountMember
1435 Gross value [member] Member ifrs-full:GrossCarryingAmountMember
1436 Writedown [member] Member sny:WriteDownMember
1437 Disclosure of inventories [line items] LineItems sny:DisclosureOfInventoriesLineItems
1438 Raw materials Concept (Monetary) As Of Debit ifrs-full:RawMaterials
1439 Work in process Concept (Monetary) As Of Debit ifrs-full:WorkInProgress
1440 Finished goods Concept (Monetary) As Of Debit ifrs-full:FinishedGoods
1441 Total Concept (Monetary) As Of Debit ifrs-full:Inventories
1442 1142 - Disclosure - Inventories - Additional Information (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureInventoriesAdditionalInformation
1443 Implied Table Table

*

*

implied:Table
1444 Classes of current inventories [abstract] Abstract ifrs-full:ClassesOfInventoriesAbstract
1445 Inventories pledged as security for liabilities Concept (Monetary) As Of Debit ifrs-full:InventoriesPledgedAsSecurityForLiabilities
1446 1143 - Disclosure - Accounts Receivable - Summary of Accounts Receivable (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureAccountsReceivableSummaryOfAccountsReceivable
1447 Disclosure of Accounts receivable [Table] Table

*

*

sny:DisclosureOfAccountsReceivableTable
1448 Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Axis ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis
1449 Carrying amount [member] Member ifrs-full:CarryingAmountMember
1450 Gross value [member] Member ifrs-full:GrossCarryingAmountMember
1451 Allowances [member] Member sny:AllowancesMember
1452 Disclosure of accounts receivable [line items] LineItems sny:DisclosureOfAccountsReceivableLineItems
1453 Accounts receivable Concept (Monetary) As Of Debit ifrs-full:CurrentTradeReceivables
1454 1144 - Disclosure - Accounts Receivable - Additional Information (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureAccountsReceivableAdditionalInformation
1455 Disclosure of Accounts receivable [Table] Table

*

*

sny:DisclosureOfAccountsReceivableTable
1456 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
1457 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
1458 US [member] Member country:US
1459 Japan [Member] Member country:JP
1460 Europe [member] Member us-gaap:EuropeMember
1461 Disclosure of accounts receivable [line items] LineItems sny:DisclosureOfAccountsReceivableLineItems
1462 Impairment loss recognised in profit or loss, trade receivables Concept (Monetary) For Period Debit ifrs-full:ImpairmentLossRecognisedInProfitOrLossTradeReceivables
1463 Gross value of overdue receivables Concept (Monetary) As Of Debit sny:OverdueReceivablesGrossValue
1464 Derecognized receivables Concept (Monetary) As Of Debit sny:DerecognizedReceivables
1465 1145 - Disclosure - Accounts Receivable - Additional Information (Parenthetical) (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureAccountsReceivableAdditionalInformationParenthetical
1466 Implied Table Table

*

*

implied:Table
1467 Disclosure of accounts receivables [abstract] Abstract sny:DisclosureOfAccountsReceivablesAbstract
1468 Impairment allowance increase Concept (Monetary) As Of Debit sny:ImpairmentLossAllowances
1469 1146 - Disclosure - Accounts Receivable - Summary of Gross Value of Overdue Receivables (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureAccountsReceivableSummaryOfGrossValueOfOverdueReceivables
1470 Disclosure of financial assets that are either past due or impaired [table] Table

*

*

ifrs-full:DisclosureOfFinancialAssetsThatAreEitherPastDueOrImpairedTable
1471 Maturity [axis] Axis ifrs-full:MaturityAxis
1472 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
1473 Less than 1 Month [member] Member ifrs-full:NotLaterThanOneMonthMember
1474 1 to 3 Months [member] Member ifrs-full:LaterThanOneMonthAndNotLaterThanThreeMonthsMember
1475 3 to 6 Months [member] Member sny:LaterThanThreeMonthAndNotLaterThanSixMonthsMember
1476 6 to 12 Months [member] Member sny:LaterThanSixMonthAndNotLaterThanTwelveMonthsMember
1477 Greater than 12 Months [member] Member ifrs-full:LaterThanOneYearMember
1478 Disclosure of financial assets that are either past due or impaired [line items] LineItems ifrs-full:DisclosureOfFinancialAssetsThatAreEitherPastDueOrImpairedLineItems
1479 Overdue receivables gross value Concept (Monetary) As Of Debit sny:OverdueReceivablesGrossValue
1480 1147 - Disclosure - Other Current Assets - Schedule of Other Current Assets (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureOtherCurrentAssetsScheduleOfOtherCurrentAssets
1481 Implied Table Table

*

*

implied:Table
1482 Other Current Assets [abstract] Abstract sny:OtherCurrentAssetsAbstract
1483 Taxes payable Concept (Monetary) As Of Debit ifrs-full:CurrentTaxAssets
1484 Other receivables Concept (Monetary) As Of Debit ifrs-full:OtherCurrentReceivables
1485 Prepaid expenses Concept (Monetary) As Of Debit ifrs-full:CurrentPrepaidExpenses
1486 Interest rate derivatives measured at fair value Concept (Monetary) As Of Debit sny:InterestRateDerivativesMeasuredAtFairValue
1487 Currency derivatives measured at fair value Concept (Monetary) As Of Debit sny:CurrencyDerivativesMeasuredAtFairValue
1488 Other current financial assets Concept (Monetary) As Of Debit ifrs-full:OtherCurrentFinancialAssets
1489 Total Concept (Monetary) As Of Debit ifrs-full:OtherCurrentAssets
1490 1148 - Disclosure - Financial Assets and Liabilities Measured at Fair Value - Summary of Assets and Liabilities Measured at Fair Value (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureFinancialAssetsAndLiabilitiesMeasuredAtFairValueSummaryOfAssetsAndLiabilitiesMeasuredAtFairValue
1491 Disclosure of Fair Value Measurement of Assets and Liabilities [Table] Table

*

*

sny:DisclosureOfFairValueMeasurementOfAssetsAndLiabilitiesTable
1492 Levels of fair value hierarchy [axis] Axis ifrs-full:LevelsOfFairValueHierarchyAxis
1493 All levels of fair value hierarchy [member] Member ifrs-full:AllLevelsOfFairValueHierarchyMember
1494 Level 1 [member] Member ifrs-full:Level1OfFairValueHierarchyMember
1495 Level 2 [member] Member ifrs-full:Level2OfFairValueHierarchyMember
1496 Level 3 [member] Member ifrs-full:Level3OfFairValueHierarchyMember
1497 Classes of liabilities [axis] Axis ifrs-full:ClassesOfLiabilitiesAxis
1498 Liabilities [member] Member ifrs-full:LiabilitiesMember
1499 CVRs issued in connection with the acquisition of Genzyme [member] Member sny:CVRsIssuedInConnectionWithTheAcquisitionOfGenzymeMember
1500 Bayer contingent purchase consideration arising from the acquisition of Genzyme [member] Member sny:BayerContingentPurchaseConsiderationArisingFromTheAcquisitionOfGenzymeMember
1501 MSD contingent consideration (European vaccines business) [member] Member sny:MSDContingentConsiderationEuropeanVaccinesBusinessMember
1502 Other contingent consideration arising from business combinations [member] Member sny:OtherContingentConsiderationArisingFromBusinessCombinationsMember
1503 Liabilities related to non-controlling interests [member] Member sny:LiabilitiesRelatedToNoncontrollingInterestsMember
1504 Non-current derivatives [member] Member sny:NoncurrentDerivativesMember
1505 Current derivatives [member] Member sny:CurrentDerivativesMember
1506 Classes of assets [axis] Axis ifrs-full:ClassesOfAssetsAxis
1507 Assets [member] Member ifrs-full:ClassesOfAssetsMember
1508 Quoted equity investments [member] Member sny:QuotedEquityInvestmentsMember
1509 Unquoted equity investments [member] Member sny:UnquotedEquityInvestmentsMember
1510 Quoted debt securities [member] Member sny:QuotedDebtSecuritiesMember
1511 Unquoted debt securities [member] Member sny:UnquotedDebtSecuritiesMember
1512 Contingent consideration relating to divestments [member] Member sny:ContingentConsiderationRelatingToDivestmentsMember
1513 Financial assets held to meet obligations under post-employment benefit plans [member] Member sny:FinancialAssetsHeldToMeetObligationsUnderPostemploymentBenefitPlansMember
1514 Financial assets held to meet obligations under deferred compensation plans [member] Member sny:FinancialassetsheldtomeetobligationsunderdeferredcompensationplansMember
1515 Non-current derivatives [member] Member sny:NoncurrentDerivativesMember
1516 Current derivatives [member] Member sny:CurrentDerivativesMember
1517 Mutual fund investments [member] Member sny:MutualFundInvestmentsMember
1518 Disclosure of information on income statement [line items] LineItems sny:DisclosureOfInformationOnIncomeStatementLineItems
1519 Financial assets Concept (Monetary) As Of Debit ifrs-full:FinancialAssets
1520 Financial liabilities Concept (Monetary) As Of Credit ifrs-full:FinancialLiabilities
1521 1149 - Disclosure - Financial Assets and Liabilities Measured at Fair Value - Additional Information (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureFinancialAssetsAndLiabilitiesMeasuredAtFairValueAdditionalInformation
1522 Disclosure of Fair Value Measurement of Assets and Liabilities [Table] Table

*

*

sny:DisclosureOfFairValueMeasurementOfAssetsAndLiabilitiesTable
1523 Counterparties [axis] Axis ifrs-full:CounterpartiesAxis
1524 Counterparties [member] Member ifrs-full:CounterpartiesMember
1525 Sanofi Pasteur MSD [member] Member sny:SanofiPasteurMSDMember
1526 Classes of assets [axis] Axis ifrs-full:ClassesOfAssetsAxis
1527 Assets [member] Member ifrs-full:ClassesOfAssetsMember
1528 Contingent consideration relating to divestments [member] Member sny:ContingentConsiderationRelatingToDivestmentsMember
1529 Other contingent consideration arising from business combinations [member] Member sny:OtherContingentConsiderationArisingFromBusinessCombinationsMember
1530 Disclosure of information on income statement [line items] LineItems sny:DisclosureOfInformationOnIncomeStatementLineItems
1531 Transfers between the different levels of the fair value hierarchy Concept (Monetary) For Period Debit sny:TransfersBetweenDifferentLevelsOfFairValueHierarchy
1532 Financial assets measured at fair value Concept (Monetary) As Of Debit ifrs-full:FinancialAssets
1533 Financial liabilities measured at fair value Concept (Monetary) As Of Credit ifrs-full:FinancialLiabilities
1534 1150 - Disclosure - Cash and Cash Equivalents - Summary of Cash and Cash Equivalents (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureCashAndCashEquivalentsSummaryOfCashAndCashEquivalents
1535 Implied Table Table

*

*

implied:Table
1536 Cash and cash equivalents [abstract] Abstract ifrs-full:CashAndCashEquivalentsAbstract
1537 Cash Concept (Monetary) As Of Debit ifrs-full:Cash
1538 Cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashEquivalents
1539 Cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
1540 1151 - Disclosure - Cash and Cash Equivalents - Summary of Cash and Cash Equivalents (Parenthetical) (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureCashAndCashEquivalentsSummaryOfCashAndCashEquivalentsParenthetical
1541 Implied Table Table

*

*

implied:Table
1542 Cash and cash equivalents [abstract] Abstract ifrs-full:CashAndCashEquivalentsAbstract
1543 Cash equivalents, money market mutual funds Concept (Monetary) As Of Debit sny:CashEquivalentMoneyMarketMutualFunds
1544 Cash equivalents, term deposits Concept (Monetary) As Of Debit ifrs-full:ShorttermDepositsClassifiedAsCashEquivalents
1545 Cash equivalents, commercial paper Concept (Monetary) As Of Debit sny:CashEquivalentCommercialPaper
1546 Cash equivalent, captive insurance and reinsurance companies Concept (Monetary) As Of Debit sny:CashEquivalentsCaptiveInsuranceAndReinsuranceCompanies
1547 1152 - Disclosure - Net Deferred Tax Position - Summary of Net Deferred Tax Position (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureNetDeferredTaxPositionSummaryOfNetDeferredTaxPosition
1548 Disclosure of temporary difference, unused tax losses and unused tax credits [table] Table

*

*

ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable
1549 Temporary difference, unused tax losses and unused tax credits [axis] Axis ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis
1550 Temporary difference, unused tax losses and unused tax credits [member] Member ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsMember
1551 Consolidation adjustments (intragroup margin in inventory) [member] Member sny:ConsolidationAdjustmentsIntragroupMarginInInventoryMember
1552 Provision for pensions and other employee benefits [member] Member sny:ProvisionForPensionsAndOtherEmployeeBenefitsMember
1553 Remeasurement of other acquired intangible assets [member] Member sny:RemeasurementOfOtherAcquiredIntangibleAssetsMember
1554 Recognition of acquired property, plant and equiment at fair value [member] Member sny:RecognitionOfAcquiredPropertyPlantAndEquipmentAtFairValueMember
1555 Equity interests in subsidiaries and investments in other entities [member] Member sny:EquityInterestsInSubsidiariesAndInvestmentsInOtherEntitiesMember
1556 Tax losses available for carry-forward [member] Member ifrs-full:UnusedTaxLossesMember
1557 Stock options and share-based payments [member] Member sny:StockOptionsAndShareBasedPaymentsMember
1558 Accrued expenses and provisions deductible at time of payments [member] Member sny:AccruedExpensesAndProvisionsDeductibleAtTimeOfPaymentsMember
1559 Other [member] Member ifrs-full:OtherTemporaryDifferencesMember
1560 Disclosure of temporary difference, unused tax losses and unused tax credits [line items] LineItems ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems
1561 Deferred tax assets (liabilities) Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilityAsset
1562 1153 - Disclosure - Net Deferred Tax Position - Summary of Net Deferred Tax Position (Parenthetical) (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureNetDeferredTaxPositionSummaryOfNetDeferredTaxPositionParenthetical
1563 Disclosure of temporary difference, unused tax losses and unused tax credits [table] Table

*

*

ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable
1564 Subsidiaries [axis] Axis ifrs-full:SignificantInvestmentsInSubsidiariesAxis
1565 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
1566 Aventis [member] Member sny:AventisMember
1567 Genzyme [member] Member sny:GenzymeMember
1568 Bioverativ [member] Member sny:BioverativMember
1569 Temporary difference, unused tax losses and unused tax credits [axis] Axis ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis
1570 Temporary difference, unused tax losses and unused tax credits [member] Member ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsMember
1571 Remeasurement of other acquired intangible assets [member] Member sny:RemeasurementOfOtherAcquiredIntangibleAssetsMember
1572 Deferred tax relating to restructuring provisions [member] Member sny:DeferredTaxRelatingToRestructuringProvisionsMember
1573 Disclosure of temporary difference, unused tax losses and unused tax credits [line items] LineItems ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems
1574 Deferred tax liabilities Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilities
1575 Reserves likely to be distributed in the foreseeable future Concept (Monetary) As Of Credit sny:ReservesLikelyToBeDistributedInTheForeseeableFuture
1576 Deferred tax assets Concept (Monetary) As Of Debit ifrs-full:DeferredTaxAssets
1577 1154 - Disclosure - Net Deferred Tax Position - Additional information (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureNetDeferredTaxPositionAdditionalInformation
1578 Implied Table Table

*

*

implied:Table
1579 Deferred tax expense (income) [abstract] Abstract ifrs-full:DeferredTaxExpenseIncomeAbstract
1580 Temporary differences associated with investments in subsidiaries, branches and associates and interests in joint arrangements for which deferred tax liabilities have not been recognised Concept (Monetary) As Of ifrs-full:TemporaryDifferencesAssociatedWithInvestmentsInSubsidiariesBranchesAndAssociatesAndInterestsInJointVentures
1581 Total deferred tax assets for tax loss carryforwards Concept (Monetary) As Of Debit sny:TotalDeferredTaxAssetsForTaxLossCarryforwards
1582 Unused tax losses for which no deferred tax asset recognised Concept (Monetary) As Of ifrs-full:UnusedTaxLossesForWhichNoDeferredTaxAssetRecognised
1583 Deferred tax assets not recognized as future recovery not probable Concept (Monetary) As Of Debit sny:DeferredTaxAssetsNotRecognizedAsFutureRecoveryNotProbable
1584 1155 - Disclosure - Net Deferred Tax Position - Summary of Tax Losses Available for Carry-forward (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureNetDeferredTaxPositionSummaryOfTaxLossesAvailableForCarryforward
1585 Disclosure Of Tax Losses Available For Carryforward [Table] Table

*

*

sny:DisclosureOfTaxLossesAvailableForCarryforwardTable
1586 Maturity [axis] Axis ifrs-full:MaturityAxis
1587 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
1588 Less than 1 year [member] Member ifrs-full:NotLaterThanOneYearMember
1589 Later than one year and not later than two years [member] Member ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember
1590 Later than two years and not later than three years [member] Member ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember
1591 Later than three years and not later than four years [member] Member ifrs-full:LaterThanThreeYearsAndNotLaterThanFourYearsMember
1592 Later than four years and not later than five years [member] Member ifrs-full:LaterThanFourYearsAndNotLaterThanFiveYearsMember
1593 More than 5 years [member] Member ifrs-full:LaterThanFiveYearsMember
1594 Disclosure of tax losses available for carryforward [line items] LineItems sny:DisclosureOfTaxLossesAvailableForCarryforwardLineItems
1595 Tax losses available for carry-forward Concept (Monetary) For Period Debit sny:TaxLossesCarryforwards
1596 1156 - Disclosure - Net Deferred Tax Position - Summary of Tax Losses Available for Carry-forward (Parenthetical) (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureNetDeferredTaxPositionSummaryOfTaxLossesAvailableForCarryforwardParenthetical
1597 Implied Table Table

*

*

implied:Table
1598 Disclosure Of Tax Losses Available For Carryforward [Abstract] Abstract sny:DisclosureOfTaxLossesAvailableForCarryforwardAbstract
1599 Tax loss carry-forwards on asset disposals Concept (Monetary) As Of Debit sny:TaxLossCarryforwardsOnAssetDisposals
1600 1157 - Disclosure - Consolidated Shareholders' Equity - Additional Information (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureConsolidatedShareholdersEquityAdditionalInformation
1601 Disclosure of classes of share capital [table] Table

*

*

ifrs-full:DisclosureOfClassesOfShareCapitalTable
1602 Types of share-based payment arrangements [axis] Axis ifrs-full:TypesOfSharebasedPaymentArrangementsAxis
1603 Stock options and other share-based payment [Member] Member ifrs-full:SharebasedPaymentArrangementsMember
1604 Performance share unit plan [member] Member sny:PerformanceShareUnitPlanMember
1605 Stock purchase option plan [member] Member sny:StockPurchaseOptionPlanMember
1606 Stock subscription option plan [member] Member sny:StockSubscriptionOptionPlanMember
1607 Awards Date 1 [Axis] Axis sny:AwardsDate1Axis
1608 Awards Date 1 [Member] Member sny:AwardsDate1Member
1609 May 10, 2017 [member] Member sny:MayTenTwoThousandSeventeenMember
1610 May 4, 2016 [member] Member sny:MayFourTwoThousandSixteenMember
1611 May 4, 2015 [member] Member sny:MayFourTwoThousandFifteenMember
1612 Separate management entities [axis] Axis ifrs-full:SeparateManagementEntitiesAxis
1613 Separate management entities [member] Member ifrs-full:SeparateManagementEntitiesMember
1614 Liquidity contract [member] Member sny:LiquidityContractMember
1615 Disclosure of classes of share capital [line items] LineItems ifrs-full:DisclosureOfClassesOfShareCapitalLineItems
1616 Share capital Concept (Monetary) As Of Credit ifrs-full:IssuedCapital
1617 Number of shares Concept (Shares) As Of ifrs-full:NumberOfSharesIssued
1618 Par value per share Concept (Share) As Of ifrs-full:ParValuePerShare
1619 Performance share unit (PSU) plan approved on March 5, 2014, vesting period description Concept (Text/String) For Period sny:PerformanceShareUnitPlanVestingPeriodDescription
1620 Vesting date Concept (Date) For Period sny:PlanExpirationDate
1621 Total expense recognized through equity (€ million) Concept (Monetary) For Period Debit ifrs-full:ExpenseFromEquitysettledSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssets
1622 Period of share repurchase program Concept (xbrli:durationItemType) For Period sny:PeriodOfShareRepurchaseProgram
1623 Amount of shares repurchased Concept (Monetary) As Of Debit sny:AmountOfSharesRepurchased
1624 Hedges of net investments in foreign operations Concept (Monetary) For Period Credit sny:HedgesOfNetInvestmentsInForeignOperationsAfterTax
1625 Increase in shareholders equity due to exercise of stock purchase option Concept (Monetary) For Period Credit sny:ShareholdersEquityIncreaseDueToTheExerciseOfAllOutstandingOptions
1626 Number of stock option not taken for computing diluted earning per share Concept (Shares) As Of sny:StockOptionsWithNoDilutiveEffect
1627 1158 - Disclosure - Consolidated Shareholders' Equity - Summary of Treasury Shares Held (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureConsolidatedShareholdersEquitySummaryOfTreasurySharesHeld
1628 Implied Table Table

*

*

implied:Table
1629 Disclosure of classes of share capital [abstract] Abstract ifrs-full:DisclosureOfClassesOfShareCapitalAbstract
1630 Number of shares held Concept (Shares) As Of sny:NumberOfSharesHeld
1631 Percentage of share capital for the period Concept (Percent) As Of sny:PercentageOfShareCapitalForThePeriod
1632 1159 - Disclosure - Consolidated Shareholders' Equity - Summary of Movements Share Capital (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureConsolidatedShareholdersEquitySummaryOfMovementsShareCapital
1633 Disclosure of classes of share capital [table] Table

*

*

ifrs-full:DisclosureOfClassesOfShareCapitalTable
1634 Components of equity [axis] Axis ifrs-full:ComponentsOfEquityAxis
1635 Equity [member] Member ifrs-full:EquityMember
1636 Reserve of equity component of convertible instruments [member] Member ifrs-full:ReserveOfEquityComponentOfConvertibleInstrumentsMember
1637 Additional paid-in capital [member] Member ifrs-full:AdditionalPaidinCapitalMember
1638 Share capital [member] Member ifrs-full:IssuedCapitalMember
1639 Treasury shares [member] Member ifrs-full:TreasurySharesMember
1640 Legal Entity [Axis] Axis dei:LegalEntityAxis
1641 Entity [Domain] Member dei:EntityDomain
1642 Sanofi [member] Member sny:SanofiMember
1643 Disclosure of classes of share capital [line items] LineItems ifrs-full:DisclosureOfClassesOfShareCapitalLineItems
1644 Beginning balance Concept (Monetary) As Of Credit ifrs-full:Equity
1645 Share capital with regard to capital increase by exercise of stock subscription options Concept (Monetary) For Period sny:CapitalIncreaseByExerciseOfStockSubscriptionOptions
1646 Share capital with regard to capital increase by issuance of restricted shares Concept (Monetary) For Period sny:CapitalIncreaseByIssuanceOfRestrictedShares
1647 Board meeting Concept (Monetary) For Period sny:CapitalReductionByCancellationOfTreasurySharesFollowingBoardMeetingOfAprilTwentyEightTwoThousandSixteen
1648 Board meeting Concept (Monetary) For Period sny:CapitalReductionByCancellationOfTreasurySharesFollowingBoardMeetingOfAprilTwentySixTwoThousandEighteen
1649 Board meeting Concept (Monetary) For Period sny:CapitalReductionByCancellationOfTreasurySharesFollowingBoardMeetingOfAprilTwentySevenTwoThousandSeventeen
1650 Board meeting Concept (Monetary) For Period sny:CapitalIncreaseByExerciseOfStockSubscriptionOptionsByBoardMeetingOfJulyTwentyTwoTwoThousandSixteen
1651 Board meeting Concept (Monetary) For Period sny:CapitalIncreaseByExerciseOfStockSubscriptionOptionsByBoardMeetingOfJulyTwentySevenTwoThousandEighteen
1652 Board meeting Concept (Monetary) For Period sny:CapitalIncreaseByExerciseOfStockSubscriptionOptionsByBoardMeetingOfJulyTwentyEightTwoThousandSeventeen
1653 Board meeting Concept (Monetary) For Period sny:CapitalReductionByCancellationOfTreasurySharesFollowingBoardMeetingOfDecemberEighteenTwoThousandEighteen
1654 Board meeting Concept (Monetary) For Period sny:CapitalReductionByCancellationOfTreasurySharesFollowingBoardMeetingOfDecemberFourteenTwoThousandSeventeen
1655 Ending balance Concept (Monetary) As Of Credit ifrs-full:Equity
1656 Number of shares, beginning of period Concept (Shares) As Of ifrs-full:NumberOfSharesIssued
1657 Number of shares in regard to capital increase by exercise of stock subscription options Concept (Shares) For Period sny:NumberOfSharesIssuedInRegardsOfCapitalIncreaseByExerciseOfStockSubscriptionOptions
1658 Number of restricted shares issued in regard of capital increase Concept (Shares) For Period sny:NumberOfRestrictedSharesIssuedInRegardsOfCapitalIncrease
1659 Board meeting Concept (Monetary) For Period sny:NumberOfTreasurySharesCancelledFollowingBoardMeetingOfAprilTwentySixTwoThousandEighteen
1660 Board meeting Concept (Shares) For Period sny:NumberOfTreasurySharesCancelledFollowingBoardMeetingOfAprilTwentyEightAprilTwoThousandSixteen
1661 Board meeting Concept (Shares) For Period sny:NumberOfTreasurySharesCancelledFollowingBoardMeetingOfAprilTwentySevenAprilTwoThousandSeventeen
1662 Board meeting Concept (Monetary) For Period sny:NumberOfSharesIssuedInRegardsOfCapitalIncreaseByExerciseOfStockSubscriptionOptionsByBoardMeetingOfJulyTwentySevenTwoThousandEighteen
1663 Board meeting Concept (Shares) For Period sny:NumberOfSharesIssuedInRegardsOfCapitalIncreaseByExerciseOfStockSubscriptionOptionsByBoardmeetingOfJulyTwentyTwoTwoThousandSixteen
1664 Board meeting Concept (Shares) For Period sny:NumberOfSharesIssuedInRegardsOfCapitalIncreaseByExerciseOfStockSubscriptionOptionsByBoardMeetingOfJulyTwentyEightTwoThousandSeventeen
1665 Board meeting Concept (Monetary) For Period sny:NumberOfTreasurySharesCancelledFollowingBoardMeetingOfDecemberEighteenTwoThousandEighteen
1666 Board meeting Concept (Shares) For Period sny:NumberOfTreasurySharesCancelledFollowingBoardMeetingOfDecemberFourteenTwoThousandSeventeen
1667 Number of shares, end of period Concept (Shares) As Of ifrs-full:NumberOfSharesIssued
1668 1160 - Disclosure - Consolidated Shareholders' Equity - Principal Characteristics of Restricted Share Plans (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureConsolidatedShareholdersEquityPrincipalCharacteristicsOfRestrictedSharePlans
1669 Disclosure of classes of share capital [table] Table

*

*

ifrs-full:DisclosureOfClassesOfShareCapitalTable
1670 Types of share-based payment arrangements [axis] Axis ifrs-full:TypesOfSharebasedPaymentArrangementsAxis
1671 Stock options and other share-based payment [Member] Member ifrs-full:SharebasedPaymentArrangementsMember
1672 Restricted Share Plan 2018 [member] Member sny:RestrictedSharePlan2018Member
1673 Restricted share plan 2017 [member] Member sny:RestrictedSharePlan2017Member
1674 Restricted share plan 2016 [member] Member sny:RestrictedSharePlan2016Member
1675 Defined benefit plans [axis] Axis ifrs-full:DefinedBenefitPlansAxis
1676 Defined benefit plans [member] Member ifrs-full:DefinedBenefitPlansMember
1677 Performance Share Plan One [member] Member sny:PerformanceSharePlanOneMember
1678 Performance Share Plan Two [member] Member sny:PerformanceSharePlanTwoMember
1679 Disclosure of classes of share capital [line items] LineItems ifrs-full:DisclosureOfClassesOfShareCapitalLineItems
1680 Date of Board meeting approving the plan Concept (Text/String) For Period ifrs-full:DateOfGrantOfSharebasedPaymentArrangement
1681 Service period Concept (Decimal) For Period sny:NumberOfShareOptionsSubjectToFourYearServicePeriod
1682 Total number of shares awarded Concept (Decimal) For Period ifrs-full:NumberOfShareOptionsGrantedInSharebasedPaymentArrangement
1683 Fair value per share awarded Concept (Monetary) For Period sny:FairValuePerShareAwardedForThreeYearServicePeriod
1684 Fair value of plan at the date of grant Concept (Monetary) For Period Credit sny:FairValueOfPlanAtDateOfGrant
1685 1161 - Disclosure - Consolidated Shareholder's Equity - Summary of Number of Restricted Shares Not Yet Fully Vested (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureConsolidatedShareholdersEquitySummaryOfNumberOfRestrictedSharesNotYetFullyVested
1686 Disclosure of classes of share capital [table] Table

*

*

ifrs-full:DisclosureOfClassesOfShareCapitalTable
1687 Types of share-based payment arrangements [axis] Axis ifrs-full:TypesOfSharebasedPaymentArrangementsAxis
1688 Stock options and other share-based payment [Member] Member ifrs-full:SharebasedPaymentArrangementsMember
1689 Restricted shares [member] Member sny:RestrictedSharesMember
1690 Restricted Share Plan 2018 [member] Member sny:RestrictedSharePlan2018Member
1691 Restricted share plan 2017 [member] Member sny:RestrictedSharePlan2017Member
1692 Restricted share plan 2016 [member] Member sny:RestrictedSharePlan2016Member
1693 Restricted share plan 2015 [member] Member sny:RestrictedSharePlan2015Member
1694 Restricted share plan 2014 [member] Member sny:RestrictedSharePlan2014Member
1695 Restricted share plan 2013 [member] Member sny:RestrictedSharePlan2013Member
1696 Disclosure of classes of share capital [line items] LineItems ifrs-full:DisclosureOfClassesOfShareCapitalLineItems
1697 Total expense recognized through equity (€ million) Concept (Monetary) For Period Debit ifrs-full:ExpenseFromEquitysettledSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssets
1698 Number of shares not yet fully vested Concept (Shares) As Of sny:NumberOfRestrictedSharesNotYetFullyVested
1699 1162 - Disclosure - Consolidated Shareholders' Equity - Summary of Characteristics of Employee Share Ownership Plans Awarded (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureConsolidatedShareholdersEquitySummaryOfCharacteristicsOfEmployeeShareOwnershipPlansAwarded
1700 Disclosure of classes of share capital [table] Table

*

*

ifrs-full:DisclosureOfClassesOfShareCapitalTable
1701 Types of share-based payment arrangements [axis] Axis ifrs-full:TypesOfSharebasedPaymentArrangementsAxis
1702 Stock options and other share-based payment [Member] Member ifrs-full:SharebasedPaymentArrangementsMember
1703 Employees share ownership plan [member] Member sny:EmployeesShareOwnershipPlanMember
1704 Disclosure of classes of share capital [line items] LineItems ifrs-full:DisclosureOfClassesOfShareCapitalLineItems
1705 Date of Board meeting approving the plan Concept (Text/String) For Period sny:DateOfGrantOfEmployeeShareOwnershipPlansAwarded
1706 Subscription price Concept (Share) As Of sny:SubscriptionPricePerShare
1707 Subscription period Concept (Text/String) For Period sny:DescriptionOfCapitalIncreasesSubscriptionPeriod
1708 Number of shares subscribed Concept (Shares) As Of sny:NumberOfShareSubscribed
1709 Number of shares issued immediately as employer's contribution Concept (Shares) As Of sny:IssuanceOfFurtherSharesAsAnEmployersContribution
1710 1163 - Disclosure - Consolidated Shareholders' Equity - Summary of Characteristics of Employee Share Ownership Plans Awarded (Parenthetical) (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureConsolidatedShareholdersEquitySummaryOfCharacteristicsOfEmployeeShareOwnershipPlansAwardedParenthetical
1711 Implied Table Table

*

*

implied:Table
1712 Disclosure of classes of share capital [abstract] Abstract ifrs-full:DisclosureOfClassesOfShareCapitalAbstract
1713 Percentage of average of quoted market prices of shares Concept (Percent) For Period sny:PercentageOfAverageOfQuotedMarketPricesOfShares
1714 Description of average quoted market price in shares Concept (Text/String) For Period sny:DescriptionOfAverageQuotedMarketPriceOfSharesSubscriptionPeriod
1715 1164 - Disclosure - Consolidated Shareholder's Equity - Summary of Expenses (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureConsolidatedShareholdersEquitySummaryOfExpenses
1716 Disclosure of classes of share capital [table] Table

*

*

ifrs-full:DisclosureOfClassesOfShareCapitalTable
1717 Types of share-based payment arrangements [axis] Axis ifrs-full:TypesOfSharebasedPaymentArrangementsAxis
1718 Stock options and other share-based payment [Member] Member ifrs-full:SharebasedPaymentArrangementsMember
1719 Employees share ownership plan [member] Member sny:EmployeesShareOwnershipPlanMember
1720 Disclosure of classes of share capital [line items] LineItems ifrs-full:DisclosureOfClassesOfShareCapitalLineItems
1721 Total expense recognized through equity (€ million) Concept (Monetary) For Period Debit ifrs-full:ExpenseFromEquitysettledSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssets
1722 Expense recognized for capital increases plans, for employer's contribution Concept (Monetary) For Period Debit sny:ExpenseFromEquitySettledSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssetsEmployerContribution
1723 1165 - Disclosure - Consolidated Shareholder's Equity - Summary of Repurchases program (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureConsolidatedShareholdersEquitySummaryOfRepurchasesProgram
1724 Disclosure of classes of share capital [table] Table

*

*

ifrs-full:DisclosureOfClassesOfShareCapitalTable
1725 Awards Date 1 [Axis] Axis sny:AwardsDate1Axis
1726 Awards Date 1 [Member] Member sny:AwardsDate1Member
1727 Share repurchase 2018 programme [member] Member sny:ShareRepurchase2018ProgrammeMember
1728 Share repurchase 2017 program [member] Member sny:ShareRepurchase2017ProgramMember
1729 Share repurchase 2016 program [member] Member sny:ShareRepurchase2016ProgramMember
1730 Share repurchase 2015 program [member] Member sny:ShareRepurchase2015ProgramMember
1731 Disclosure of classes of share capital [line items] LineItems ifrs-full:DisclosureOfClassesOfShareCapitalLineItems
1732 Amount of shares repurchased Concept (Monetary) As Of Debit sny:AmountOfSharesRepurchased
1733 Number of shares repurchased Concept (Shares) For Period sny:NumberOfSharesRepurchased
1734 Date of ordinary general meeting Concept (Text/String) For Period sny:DateOfOrdinaryGeneralMeeting
1735 1166 - Disclosure - Consolidated Shareholders' Equity - Summary of Currency Translation Differences (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureConsolidatedShareholdersEquitySummaryOfCurrencyTranslationDifferences
1736 Disclosure of classes of share capital [table] Table

*

*

ifrs-full:DisclosureOfClassesOfShareCapitalTable
1737 Components of equity [axis] Axis ifrs-full:ComponentsOfEquityAxis
1738 Equity [member] Member ifrs-full:EquityMember
1739 Reserve of exchange differences on translation [member] Member ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember
1740 Disclosure of classes of share capital [line items] LineItems ifrs-full:DisclosureOfClassesOfShareCapitalLineItems
1741 Attributable to equity holders of Sanofi Concept (Monetary) As Of Credit ifrs-full:EquityAttributableToOwnersOfParent
1742 Attributable to non-controlling interests Concept (Monetary) As Of Credit ifrs-full:NoncontrollingInterests
1743 Total equity Concept (Monetary) As Of Credit ifrs-full:Equity
1744 1167 - Disclosure - Consolidated Shareholders' Equity - Summary of Movements within Other Comprehensive Income (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureConsolidatedShareholdersEquitySummaryOfMovementsWithinOtherComprehensiveIncome
1745 Disclosure of analysis of other comprehensive income by item [table] Table

*

*

ifrs-full:DisclosureOfAnalysisOfOtherComprehensiveIncomeByItemTable
1746 Reclassified items [axis] Axis ifrs-full:ReclassifiedItemsAxis
1747 Reclassified items [member] Member ifrs-full:ReclassifiedItemsMember
1748 Items not subsequently reclassifiable to profit or loss [member] Member sny:ItemsNotSubsequentlyReclassifiableToProfitOrLossMember
1749 Items subsequently reclassifiable to profit or loss [member] Member sny:ItemsSubsequentlyReclassifiableToProfitOrLossMember
1750 Components of equity [axis] Axis ifrs-full:ComponentsOfEquityAxis
1751 Equity [member] Member ifrs-full:EquityMember
1752 Accumulated comprehensive income [member] Member sny:AccumulatedComprehensiveIncomeMember
1753 Classes of Financial Assets [Axis] Axis ifrs-full:ClassesOfFinancialAssetsAxis
1754 Financial assets, class [member] Member ifrs-full:FinancialAssetsMember
1755 Equity Instruments Included In Financial Assets[member] Member sny:EquityInstrumentsIncludedInFinancialAssetsMember
1756 Debt Instruments [member] Member sny:DebtInstrumentsMember
1757 Disclosure of analysis of other comprehensive income by item [line items] LineItems ifrs-full:DisclosureOfAnalysisOfOtherComprehensiveIncomeByItemLineItems
1758 Actuarial gains/(losses) excluding investments accounted for using the equity method Concept (Monetary) For Period Credit sny:ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsNetDefinedBenefitLiabilityAssetExcludingAssociatesAndJointVentures
1759 Actuarial gains/(losses) of investments accounted for using the equity method, net of taxes Concept (Monetary) For Period Credit sny:ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsNetDefinedBenefitLiabilityAssetNetOfTaxOnAssociatesAndJointVentures
1760 Tax effects Concept (Monetary) For Period Debit ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLoss
1761 Change in fair value (excluding investments accounted for using the equity method) Concept (Monetary) For Period Credit sny:ChangeInFairValueOnAvailableForSaleFinancialAssetsExcludingAssociatesAndJointVentures
1762 Change in fair value (investments accounted for using the equity method, net of taxes) Concept (Monetary) For Period Credit sny:ChangeInFairValueOnInvestmentsAccountedForUsingTheEquityMethodNetOfTax
1763 Change in fair value (investments accounted for using the equity method, net of taxes) Concept (Monetary) For Period Credit sny:ChangeInFairValueOnAvailableForSaleFinancialAssetsNetOfTaxExcludingAssociatesAndJointVentures
1764 Tax effects Concept (Monetary) For Period Debit ifrs-full:IncomeTaxRelatingToAvailableforsaleFinancialAssetsOfOtherComprehensiveIncome
1765 Items not subsequently reclassifiable to profit or loss Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax
1766 Change in fair value (excluding investments accounted for using the equity method) Concept (Monetary) For Period Credit sny:ChangeInFairValueOnCashFlowHedgesExcludingAssociatesAndJointVentures
1767 Change in fair value (investments accounted for using the equity method, net of taxes) Concept (Monetary) For Period Credit sny:ChangeInFairValueOnCashFlowHedgesNetOfTaxOnAssociatesAndJointVentures
1768 Tax effects Concept (Monetary) For Period Debit ifrs-full:IncomeTaxRelatingToCashFlowHedgesOfOtherComprehensiveIncome
1769 Currency translation differences on foreign subsidiaries (excluding investments accounted for using the equity method) Concept (Monetary) For Period Credit sny:ChangeInCurrencyTranslationBeforeTaxExcludingAssociatesAndJointVentures
1770 Currency translation differences (investments accounted for using the equity method) Concept (Monetary) For Period Credit sny:ChangeInCurrencyTranslationNetOfTaxOnAssociatesAndJointVentures
1771 Hedges of net investments in foreign operations Concept (Monetary) For Period Credit sny:ChangeInCurrencyTranslationOnHedgesOfNetInvestmentsInForeignOperations
1772 Tax effects Concept (Monetary) For Period Debit sny:ChangeInCurrencyTranslationOnTaxEffects
1773 Items subsequently reclassifiable to profit or loss Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax
1774 1168 - Disclosure - Consolidated Shareholders' Equity - Summary of Movements within Other Comprehensive Income (Parenthetical) (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureConsolidatedShareholdersEquitySummaryOfMovementsWithinOtherComprehensiveIncomeParenthetical
1775 Disclosure of analysis of other comprehensive income by item [table] Table

*

*

ifrs-full:DisclosureOfAnalysisOfOtherComprehensiveIncomeByItemTable
1776 Segments [axis] Axis ifrs-full:SegmentsAxis
1777 Segments [member] Member ifrs-full:SegmentsMember
1778 Animal Health Business [member] Member sny:AnimalHealthBusinessMember
1779 Disclosure of analysis of other comprehensive income by item [line items] LineItems ifrs-full:DisclosureOfAnalysisOfOtherComprehensiveIncomeByItemLineItems
1780 Change in fair value (excluding associates and joint ventures) reclassification to profit or loss Concept (Monetary) For Period Credit sny:OtherComprehensiveincomeExcludingAssociatesAndJointVenturesNetOfTaxAvailableforsaleFinancialAssetsReclassificationToProfitOrLoss
1781 Currency translation differences on foreign subsidiaries (excluding associates and joint ventures) reclassified to profit or loss Concept (Monetary) For Period Credit sny:OtherComprehensiveIncomeCurrencyTranslationDifferencesOnForeignSubsidiariesExcludingAssociatesAndJointVenturesReclassifiedToProfitOrLoss
1782 Items subsequently reclassifiable to profit or loss Concept (Monetary) For Period Credit sny:OtherComprehensiveIncomeSubsequentlyReclassifiableToProfitOrLoss
1783 Items subsequently reclassifiable to profit or loss currency transaction differences Concept (Monetary) For Period Credit sny:OtherComprehensiveIncomeSubsequentlyReclassifiableToProfitOrLossCurrencyTransactionDifferences
1784 Currency translation differences on foreign subsidiaries (excluding associates and joint ventures) reclassified to profit or loss Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeNetOfTaxCashFlowHedges
1785 1169 - Disclosure - Consolidated Shareholders' Equity - Summary of Stock Option Plans Awarded and Measurement of Stock Option Plans (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureConsolidatedShareholdersEquitySummaryOfStockOptionPlansAwardedAndMeasurementOfStockOptionPlans
1786 Implied Table Table

*

*

implied:Table
1787 Disclosure of classes of share capital [abstract] Abstract ifrs-full:DisclosureOfClassesOfShareCapitalAbstract
1788 Date of Board meeting approving the plan Concept (Text/String) For Period sny:DateOfBoardMeetingApprovingPlan
1789 Total number of options granted Concept (Decimal) For Period ifrs-full:NumberOfInstrumentsGrantedInSharebasedPaymentArrangement
1790 Exercise price Concept (Share) For Period sny:ExercisePricesPerShare
1791 Vesting period Concept (xbrli:durationItemType) For Period sny:OptionVestingPeriod
1792 Plan expiry date Concept (Date) For Period sny:OptionExpireDate
1793 Fair value of the plan Concept (Monetary) For Period Debit sny:FairValueOfStockOptionPlanAwarded
1794 Fair value per option granted Concept (Share) For Period sny:FairValuePerOptionAwarded
1795 Assumptions used to determine fair value Dividend yield Concept (Percent) For Period sny:DividendYieldUsedInDeterminingTheFairValueOfStockOptionPlanAwarded
1796 Volatility of Sanofi shares, computed on a historical basis Concept (Percent) For Period sny:VolatilityOfSanofiSharesUsedInDeterminingTheFairValueOfStockOptionPlanAwarded
1797 Risk-free interest rate Concept (Percent) For Period sny:RiskFreeInterestRateUsedInDeterminingTheFairValueOfStockOptionPlanAwarded
1798 Plan maturity Concept (xbrli:durationItemType) For Period sny:PlanMaturityUsedInDeterminingTheFairValueOfStockOptionPlanAwarded
1799 1170 - Disclosure - Consolidated Shareholders' Equity - Summary of Expense Recognized Through Equity for Stock Option Plans (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureConsolidatedShareholdersEquitySummaryOfExpenseRecognizedThroughEquityForStockOptionPlans
1800 Implied Table Table

*

*

implied:Table
1801 Disclosure of classes of share capital [abstract] Abstract ifrs-full:DisclosureOfClassesOfShareCapitalAbstract
1802 Total expense recognized through equity (€ million) Concept (Monetary) For Period Debit ifrs-full:ExpenseFromEquitysettledSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssets
1803 of which expense for the current-year plan Concept (Monetary) For Period Debit ifrs-full:ExpenseFromSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssets
1804 Unrecognized cost of unvested options Concept (Monetary) For Period Credit sny:UnrecognizedShareBasedCompensationForTheUnvestedPeriod
1805 Weighted average period of unrecognized cost Concept (xbrli:durationItemType) For Period sny:WeightedAveragePeriodOfUnrecognizedCost
1806 Current income tax gain relating to exercise of stock options Concept (Monetary) As Of Credit sny:CurrentTaxBenefitRelatedToExercisedStockOptions
1807 1171 - Disclosure - Consolidated Shareholders' Equity - Summary of Stock Purchase Option Plan Still Outstanding (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureConsolidatedShareholdersEquitySummaryOfStockPurchaseOptionPlanStillOutstanding
1808 Disclosure of stock purchase option plan outstanding and option exercised [Table] Table

*

*

sny:DisclosureOfStockPurchaseOptionPlanOutstandingAndOptionExercisedTable
1809 Components of equity [axis] Axis ifrs-full:ComponentsOfEquityAxis
1810 Equity [member] Member ifrs-full:EquityMember
1811 Stock option plan one [member] Member sny:StockOptionPlanOneMember
1812 Disclosure of stock purchase option plan outstanding and option exercised [line items] LineItems sny:DisclosureOfStockPurchaseOptionPlanOutstandingAndOptionExercisedLineItems
1813 Date of grant Concept (Date) For Period sny:StockBasedCompensationStockOptionDateOfGrant
1814 Number of options granted Concept (Decimal) For Period ifrs-full:NumberOfShareOptionsGrantedInSharebasedPaymentArrangement
1815 Start date of exercise period Concept (Date) For Period sny:StockBasedCompensationStockOptionExercisePeriod
1816 Expiry date Concept (Date) For Period sny:StockBasedCompensationStockOptionExpiryDate
1817 Exercise price Concept (Share) As Of sny:ShareOptionsExercisePrice
1818 Number of options outstanding Concept (Decimal) As Of ifrs-full:NumberOfOutstandingShareOptions
1819 1172 - Disclosure - Consolidated Shareholders' Equity - Disclosure of Stock Subscription Option Plan Outstanding and Option Exercised (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureConsolidatedShareholdersEquityDisclosureOfStockSubscriptionOptionPlanOutstandingAndOptionExercised
1820 Disclosure of stock subscription option plan outstanding and option exercised [Table] Table

*

*

sny:DisclosureOfStockSubscriptionOptionPlanOutstandingAndOptionExercisedTable
1821 Components of equity [axis] Axis ifrs-full:ComponentsOfEquityAxis
1822 Equity [member] Member ifrs-full:EquityMember
1823 Stock subscription option plan one [member] Member sny:StockSubscriptionOptionPlanOneMember
1824 Stock subscription option plan two [member] Member sny:StockSubscriptionOptionPlanTwoMember
1825 Stock subscription option plan three [member] Member sny:StockSubscriptionOptionPlanThreeMember
1826 Stock subscription option plan four [member] Member sny:StockSubscriptionOptionPlanFourMember
1827 Stock subscription option plan five [member] Member sny:StockSubscriptionOptionPlanFiveMember
1828 Stock subscription option plan six [member] Member sny:StockSubscriptionOptionPlanSixMember
1829 Stock subscription option plan seven [member] Member sny:StockSubscriptionOptionPlanSevenMember
1830 Stock subscription option plan eight [member] Member sny:StockSubscriptionOptionPlanEightMember
1831 Stock subscription option plan nine [member] Member sny:StockSubscriptionOptionPlanNineMember
1832 Stock subscription option plan ten [member] Member sny:StockSubscriptionOptionPlanTenMember
1833 Stock subscription option plan [member] Member sny:StockSubscriptionOptionPlanMember
1834 Disclosure of stock subscription option plan outstanding and option exercised [line items] LineItems sny:DisclosureOfStockSubscriptionOptionPlanOutstandingAndOptionExercisedLineItems
1835 Number of options outstanding Concept (Decimal) As Of ifrs-full:NumberOfOutstandingShareOptions
1836 Date of grant Concept (Date) For Period sny:StockBasedCompensationStockOptionDateOfGrant
1837 Number of options granted Concept (Decimal) For Period ifrs-full:NumberOfInstrumentsGrantedInSharebasedPaymentArrangement
1838 Start date of exercise period Concept (Date) For Period sny:StockBasedCompensationStockOptionExercisePeriod
1839 Expiry date Concept (Date) For Period sny:StockBasedCompensationStockOptionExpiryDate
1840 Exercise price Concept (Share) For Period sny:StockBasedCompensationStockOptionsExercisedPricePerShare
1841 1173 - Disclosure - Consolidated Shareholders' Equity - Summary of Stock Options Outstanding at Each Balance Sheet Date (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureConsolidatedShareholdersEquitySummaryOfStockOptionsOutstandingAtEachBalanceSheetDate
1842 Disclosure of terms and conditions of share-based payment arrangement [table] Table

*

*

ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable
1843 Types of share-based payment arrangements [axis] Axis ifrs-full:TypesOfSharebasedPaymentArrangementsAxis
1844 Stock options and other share-based payment [Member] Member ifrs-full:SharebasedPaymentArrangementsMember
1845 Total stock option plans [member] Member sny:TotalStockOptionPlansMember
1846 Disclosure of terms and conditions of share-based payment arrangement [line items] LineItems ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems
1847 Total, Beginning Balance Concept (Monetary) As Of Credit sny:ValueOfShareOptionsOutstandingInShareBasedPaymentArrangement
1848 Total, Options granted Concept (Monetary) For Period Credit sny:ValueOfShareOptionsGrantedInShareBasedPaymentArrangement
1849 Total, Options exercised Concept (Monetary) For Period Credit sny:ValueOfShareOptionsExercisedInShareBasedPaymentArrangement
1850 Total, Options cancelled Concept (Monetary) For Period Credit sny:ValueOfShareOptionsForfeitedInShareBasedPaymentArrangement
1851 Total, Options forfeited Concept (Monetary) For Period Credit sny:ValueOfShareOptionsExpiredInShareBasedPaymentArrangement
1852 Total, Ending Balance Concept (Monetary) As Of Credit sny:ValueOfShareOptionsOutstandingInShareBasedPaymentArrangement
1853 Total, Options exercisable Concept (Monetary) For Period Credit sny:ValueOfShareOptionsExercisableInShareBasedPaymentArrangement
1854 Weighted average exercise price per share, Beginning Balance Concept (Monetary) As Of ifrs-full:WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement
1855 Weighted average exercise price per share, Options granted Concept (Monetary) For Period ifrs-full:WeightedAverageExercisePriceOfShareOptionsGrantedInSharebasedPaymentArrangement
1856 Weighted average exercise price per share, Options exercised Concept (Monetary) For Period ifrs-full:WeightedAverageExercisePriceOfShareOptionsExercisedInSharebasedPaymentArrangement
1857 Weighted average exercise price per share, Options cancelled Concept (Monetary) For Period ifrs-full:WeightedAverageExercisePriceOfShareOptionsForfeitedInSharebasedPaymentArrangement
1858 Weighted average exercise price per share, Options forfeited Concept (Monetary) For Period ifrs-full:WeightedAverageExercisePriceOfShareOptionsExpiredInSharebasedPaymentArrangement
1859 Weighted average exercise price per share, Ending Balance Concept (Monetary) As Of ifrs-full:WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement
1860 Weighted average exercise price per share, Options exercisable Concept (Monetary) As Of ifrs-full:WeightedAverageExercisePriceOfShareOptionsExercisableInSharebasedPaymentArrangement
1861 Number of options, Beginning Balance Concept (Shares) As Of sny:NumberOfShareOutstandingInShareBasedPaymentArrangement
1862 Number of options, Options granted Concept (Decimal) For Period ifrs-full:NumberOfShareOptionsGrantedInSharebasedPaymentArrangement
1863 Number of options, Options exercised Concept (Decimal) For Period ifrs-full:NumberOfShareOptionsExercisedInSharebasedPaymentArrangement
1864 Number of options, Options cancelled Concept (Decimal) For Period ifrs-full:NumberOfShareOptionsForfeitedInSharebasedPaymentArrangement
1865 Number of options, Options forfeited Concept (Decimal) For Period ifrs-full:NumberOfShareOptionsExpiredInSharebasedPaymentArrangement
1866 Number of options, Ending Balance Concept (Shares) As Of sny:NumberOfShareOutstandingInShareBasedPaymentArrangement
1867 Number of options, Options exercisable Concept (Decimal) As Of ifrs-full:NumberOfShareOptionsExercisableInSharebasedPaymentArrangement
1868 1174 - Disclosure - Consolidated Shareholders' Equity - Summary of Options Outstanding and Exercisable (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureConsolidatedShareholdersEquitySummaryOfOptionsOutstandingAndExercisable
1869 Disclosure of terms and conditions of share-based payment arrangement [table] Table

*

*

ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable
1870 Components of equity [axis] Axis ifrs-full:ComponentsOfEquityAxis
1871 Equity [member] Member ifrs-full:EquityMember
1872 Stock Option Plan [member] Member sny:StockOptionPlanMember
1873 Types of share-based payment arrangements [axis] Axis ifrs-full:TypesOfSharebasedPaymentArrangementsAxis
1874 Stock options and other share-based payment [Member] Member ifrs-full:SharebasedPaymentArrangementsMember
1875 From 30.00 to 40.00 Per Share [member] Member sny:ExercisePriceRangeThirtyToFourtyMember
1876 From 40.00 to 50.00 Per Share [member] Member sny:ExercisePriceRangeFourtyToFiftyMember
1877 From 50.00 to 60.00 Per Share [member] Member sny:ExercisePriceRangeFiftyToSixtyMember
1878 From 60.00 to 70.00 Per Share [member] Member sny:ExercisePriceRangeSixtyToSeventyMember
1879 From 70.00 to 80.00 Per Share [member] Member sny:ExercisePriceRangeSeventyToEightyMember
1880 From 80.00 to 90.00 Per Share [member] Member sny:ExercisePriceRangeEightyToNinetyMember
1881 Disclosure of terms and conditions of share-based payment arrangement [line items] LineItems ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems
1882 Outstanding Number of options Concept (Decimal) As Of ifrs-full:NumberOfOutstandingShareOptions
1883 Outstanding weighted Average residual life (years) Concept (Decimal) As Of sny:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingAverageResidualLife
1884 Outstanding Weighted average exercise price per share Concept (Monetary) As Of ifrs-full:WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement
1885 Exercisable Number of options Concept (Decimal) As Of ifrs-full:NumberOfShareOptionsExercisableInSharebasedPaymentArrangement
1886 Exercisable Weighted average exercise price per share Concept (Monetary) As Of ifrs-full:WeightedAverageExercisePriceOfShareOptionsExercisableInSharebasedPaymentArrangement
1887 1175 - Disclosure - Consolidated Shareholders' Equity - Summary of Number of Shares Used to Compute Diluted Earnings Per Share (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureConsolidatedShareholdersEquitySummaryOfNumberOfSharesUsedToComputeDilutedEarningsPerShare
1888 Implied Table Table

*

*

implied:Table
1889 Disclosure Of Number Of Shares Used To Compute Diluted Earnings Per Share [Abstract] Abstract sny:DisclosureOfNumberOfSharesUsedToComputeDilutedEarningsPerShareAbstract
1890 Average number of shares outstanding Concept (Shares) For Period ifrs-full:WeightedAverageShares
1891 Adjustment for stock options with dilutive effect Concept (Shares) For Period ifrs-full:DilutiveEffectOfShareOptionsOnNumberOfOrdinaryShares
1892 Adjustment for restricted shares Concept (Shares) For Period sny:DilutiveEffectOfShareOptionsOnNumberOfRestrictedShares
1893 Average number of shares used to compute diluted earnings per share Concept (Shares) For Period ifrs-full:AdjustedWeightedAverageShares
1894 1176 - Disclosure - Debt, Cash and Cash Equivalents - Summary of Changes in Financial Position (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureDebtCashAndCashEquivalentsSummaryOfChangesInFinancialPosition
1895 Implied Table Table

*

*

implied:Table
1896 Disclosure of changes in financial position [Abstract] Abstract sny:DisclosureOfChangesInFinancialPositionAbstract
1897 Long-term debt Concept (Monetary) As Of Credit ifrs-full:LongtermBorrowings
1898 Short-term debt and current portion of long-term debt Concept (Monetary) As Of Credit ifrs-full:CurrentBorrowingsAndCurrentPortionOfNoncurrentBorrowings
1899 Interest rate and currency derivatives used to manage debt Concept (Monetary) As Of Debit sny:InterestRateAndCurrencyDerivativesUsedToManageDebt
1900 Total debt Concept (Monetary) As Of Credit ifrs-full:Borrowings
1901 Cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
1902 Interest rate and currency derivatives used to manage cash and cash equivalents Concept (Monetary) As Of Debit sny:InterestRateAndCurrencyDerivativesUsedToManageCashAndCashEquivalent
1903 Net debt Concept (Monetary) As Of Credit sny:DebtNetOfCashAndCashEquivalents
1904 1177 - Disclosure - Debt, Cash and Cash Equivalents - Summary of Reconciliation of Carrying Amount to Value on Redemption (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureDebtCashAndCashEquivalentsSummaryOfReconciliationOfCarryingAmountToValueOnRedemption
1905 Disclosure of reconciliation of carrying amount to value on redemption [table] Table

*

*

sny:DisclosureOfReconciliationOfCarryingAmountToValueOnRedemptionTable
1906 Measurement [axis] Axis ifrs-full:MeasurementAxis
1907 Aggregated measurement [member] Member ifrs-full:AggregatedMeasurementMember
1908 Amortized cost [member] Member sny:AmortizedCostMember
1909 Adjustment to debt measured at fair value [member] Member sny:AdjustmentToDebtMeasuredAtFairValueMember
1910 Value on redemption [member] Member sny:ValueOnRedemptionMember
1911 Disclosure of reconciliation of carrying amount to value on redemption [line items] LineItems sny:DisclosureOfReconciliationOfCarryingAmountToValueOnRedemptionLineItems
1912 Long-term debt Concept (Monetary) As Of Credit ifrs-full:LongtermBorrowings
1913 Short-term debt and current portion of long-term debt Concept (Monetary) As Of Credit ifrs-full:CurrentBorrowingsAndCurrentPortionOfNoncurrentBorrowings
1914 Interest rate and currency derivatives used to manage debt Concept (Monetary) As Of Debit sny:InterestRateAndCurrencyDerivativesUsedToManageDebt
1915 Total debt Concept (Monetary) As Of Credit ifrs-full:Borrowings
1916 Cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
1917 Interest rate and currency derivatives used to manage cash and cash equivalents Concept (Monetary) As Of Debit sny:InterestRateAndCurrencyDerivativesUsedToManageCashAndCashEquivalent
1918 Net debt Concept (Monetary) As Of Credit sny:DebtNetOfCashAndCashEquivalents
1919 1178 - Disclosure - Debt, Cash and Cash Equivalents - Disclosure Of Movement In Total Debt (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureDebtCashAndCashEquivalentsDisclosureOfMovementInTotalDebt
1920 Disclosure Of Debt [Table] Table

*

*

sny:DisclosureOfDebtTable
1921 Classes of assets [axis] Axis ifrs-full:ClassesOfAssetsAxis
1922 Assets [member] Member ifrs-full:ClassesOfAssetsMember
1923 Long-term debt [member] Member ifrs-full:LongtermBorrowingsMember
1924 Short term debt and current portion of long term debt [member] Member sny:ShortTermDebtAndCurrentPortionOfLongTermDebtMember
1925 Interest rate and currency derivatives used to manage debt [member] Member sny:IncreaseDecreaseInterestRateAndCurrencyDerivativesUsedToManageDebtMember
1926 Disclosure of debt [line items] LineItems sny:DisclosureOfDebtLineItems
1927 December 31, 2017 Concept (Monetary) As Of Credit ifrs-full:Borrowings
1928 Repayments Concept (Monetary) For Period Credit ifrs-full:RepaymentsOfBorrowingsClassifiedAsFinancingActivities
1929 New borrowings Concept (Monetary) For Period Debit ifrs-full:ProceedsFromBorrowingsClassifiedAsFinancingActivities
1930 Other cash flows Concept (Monetary) For Period Debit ifrs-full:OtherInflowsOutflowsOfCashClassifiedAsFinancingActivities
1931 Currency translation differences Concept (Monetary) For Period Credit sny:ForeignCurrencyTranslationDifferences
1932 Reclassification from non- current to current Concept (Monetary) As Of Debit sny:ReclassificationFromNonCurrentToCurrent
1933 Other items Concept (Monetary) For Period Debit ifrs-full:OtherAdjustmentsForNoncashItems
1934 December 31, 2018 Concept (Monetary) As Of Credit ifrs-full:Borrowings
1935 1179 - Disclosure - Debt, Cash and Cash Equivalents - Additional Information (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureDebtCashAndCashEquivalentsAdditionalInformation
1936 Disclosure of detailed information about borrowings [table] Table

*

*

ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsTable
1937 Debt Instrument 1 [Axis] Axis sny:DebtInstrument1Axis
1938 Debt Instrument [Domain] Member sny:DebtInstrumentDomain
1939 Sanofi Euro Medium Term Notes (EMTN) bonds [member] Member sny:SanofiEuroMediumTermNotesMember
1940 Shelf registration statement program [member] Member sny:ShelfRegistrationStatementProgramMember
1941 Borrowings by name [axis] Axis ifrs-full:BorrowingsByNameAxis
1942 Borrowings by name [member] Member ifrs-full:BorrowingsByNameMember
1943 Main undrawn confirmed general purpose credit facilities [member] Member sny:MainUndrawnConfirmedGeneralPurposeCreditFacilitiesMember
1944 1983 to 1987 Participating Shares Issued [member] Member sny:ParticipatingSharesMember
1945 Syndicated credit facility, expires in 2020 [member] Member sny:SyndicatedCreditFacilityTwoMember
1946 Syndicated credit facility, expires in 2021 [member] Member sny:SyndicatedCreditFacilityOneMember
1947 Commercial paper program in France [member] Member sny:CommercialPaperProgramInFranceMember
1948 Commercial paper program in USA [member] Member sny:CommercialPaperProgramInUSAMember
1949 Types of interest rates [axis] Axis ifrs-full:TypesOfInterestRatesAxis
1950 Interest rate types [member] Member ifrs-full:InterestRateTypesMember
1951 Weighted average interest rate before derivative instruments [member] Member sny:WeightedAverageInterestRateBeforeDerivativeInstrumentsMember
1952 Weighted average interest rate after derivative instruments [member] Member sny:WeightedAverageInterestRateAfterDerivativeInstrumentsMember
1953 Maturity [axis] Axis ifrs-full:MaturityAxis
1954 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
1955 1 billion of floating-rate bonds maturing March 2020 [member] Member sny:OneBillionFloatingRateBondsMaturingMarchTwoThousandTwentyMember
1956 500 million of fixed-rate bonds maturing March 2020 [member] Member sny:FiveHundredMillionOfFixedRateBondsMaturingMarchTwoThousandTwentyMember
1957 1.75 billion of fixed-rate bonds maturing March 2023 [member] Member sny:OnePointSevenFiveBillionOfFixedRateBondsMaturingMarchTwoThousandTwentyThreeMember
1958 1.5 billion of fixed-rate bonds maturing March 2026 [member] Member sny:OnePointFiveBillionOfFixedRateBondsMaturingMarchTwoThousandTwentySixMember
1959 2 billion of fixed-rate bonds maturing March 2030 [member] Member sny:TwoBillionOfFixedRateBondsMaturingMarchTwoThousandThirtyMember
1960 1.25 billion of fixed rate bonds maturing March 2038 [member] Member sny:OnePointTwoFiveBillionOfFixedRateBondsMaturingMarchTwoThousandThirtyEightMember
1961 1 billion of fixed-rate bonds maturing June 2023 [member] Member sny:OneBillionOfFixedRateBondsMaturingJuneTwoThousandTwentyThreeMember
1962 1 billion of fixed-rate bonds maturing June 2028 [member] Member sny:OneBillionOfFixedRateBondsMaturingJuneTwoThousandTwentyEightMember
1963 750 million bond maturing September 2018 [member] Member sny:SevenFiftyMillionBondsMaturingSeptemberTwoThousandEighteenMember
1964 Disclosure of detailed information about borrowings [line items] LineItems ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems
1965 Notional amount Concept (Monetary) As Of ifrs-full:NotionalAmount
1966 Number of tranches Concept (Integer) For Period sny:NumberOfTranches
1967 Maturity date Concept (Text/String) For Period ifrs-full:BorrowingsMaturity
1968 Bonds, interest rate basis Concept (Text/String) For Period ifrs-full:BorrowingsInterestRateBasis
1969 Bonds, interest rate Concept (Percent) As Of ifrs-full:BorrowingsInterestRate
1970 Credit facilities maximum amount Concept (Monetary) As Of Credit sny:LineOfCreditFacilityMaximumBorrowingsCapacity
1971 Number of participating shares outstanding Concept (Shares) As Of sny:ParticipatingSharesNumberOutstanding
1972 Participating shares carrying amount Concept (Monetary) As Of Credit sny:ParticipatingSharesCarryingAmount
1973 Series A participating shares issued in 1989 repurchased and cancelled Concept (Monetary) For Period Debit sny:ParticipatingSharesRepurchasedAndCancelled
1974 Commercial paper programs Concept (Monetary) As Of Credit ifrs-full:CommercialPapersIssued
1975 Average drawdown Concept (Monetary) As Of Credit sny:AverageDrawdown
1976 Maximum drawdown Concept (Monetary) As Of Credit sny:MaximumDrawdown
1977 Number of counterparty representing more than 7% of undrawn credit facility Concept (Integer) For Period sny:NumberOfCounterpartyRepresentingMoreThanSevenPercentageOfUndrawnCreditFacility
1978 Cash and cash equivalents interest rate Concept (Percent) As Of sny:CashAndCashEquivalentsInvestedRate
1979 1180 - Disclosure - Debt, Cash and Cash Equivalents - Summary of Net Debt by Type Valuation of Redemption (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureDebtCashAndCashEquivalentsSummaryOfNetDebtByTypeValuationOfRedemption
1980 Disclosure of reconciliation of carrying amount to value on redemption [table] Table

*

*

sny:DisclosureOfReconciliationOfCarryingAmountToValueOnRedemptionTable
1981 Measurement [axis] Axis ifrs-full:MeasurementAxis
1982 Aggregated measurement [member] Member ifrs-full:AggregatedMeasurementMember
1983 Value on redemption [member] Member sny:ValueOnRedemptionMember
1984 Assets and liabilities [axis] Axis ifrs-full:AssetsAndLiabilitiesAxis
1985 Assets and liabilities [member] Member ifrs-full:AssetsAndLiabilitiesMember
1986 Non-current liabilities [member] Member sny:NoncurrentLiabilitiesMember
1987 Current liabilities [member] Member sny:CurrentLiabilitiesMember
1988 Classes of assets [axis] Axis ifrs-full:ClassesOfAssetsAxis
1989 Assets [member] Member ifrs-full:ClassesOfAssetsMember
1990 Non-current assets [member] Member sny:NoncurrentAssetsMember
1991 Current assets [member] Member sny:CurrentAssetsMember
1992 Disclosure of reconciliation of carrying amount to value on redemption [line items] LineItems sny:DisclosureOfReconciliationOfCarryingAmountToValueOnRedemptionLineItems
1993 Bond issues Concept (Monetary) As Of Credit ifrs-full:BondsIssued
1994 Other bank borrowings Concept (Monetary) As Of Credit sny:OtherBankBorrowings
1995 Finance lease obligations Concept (Monetary) As Of Credit ifrs-full:FinanceLeaseLiabilities
1996 Other borrowings Concept (Monetary) As Of Credit ifrs-full:OtherBorrowings
1997 Bank credit balances Concept (Monetary) As Of Credit ifrs-full:BankOverdraftsClassifiedAsCashEquivalents
1998 Interest rate and currency derivatives used to manage debt Concept (Monetary) As Of Debit sny:InterestRateAndCurrencyDerivativesUsedToManageDebt
1999 Total debt Concept (Monetary) As Of Credit ifrs-full:Borrowings
2000 Cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
2001 Interest rate and currency derivatives used to manage cash and cash equivalents Concept (Monetary) As Of Debit sny:InterestRateAndCurrencyDerivativesUsedToManageCashAndCashEquivalent
2002 Net debt Concept (Monetary) As Of Credit sny:DebtNetOfCashAndCashEquivalents
2003 1181 - Disclosure - Debt, Cash and Cash Equivalents - Summary of Bond Issues (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureDebtCashAndCashEquivalentsSummaryOfBondIssues
2004 Disclosure of detailed information about borrowings [table] Table

*

*

ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsTable
2005 Debt Instrument 1 [Axis] Axis sny:DebtInstrument1Axis
2006 Debt Instrument [Domain] Member sny:DebtInstrumentDomain
2007 Sanofi Euro Medium Term Notes (EMTN) bonds [member] Member sny:SanofiEuroMediumTermNotesMember
2008 Shelf registration statement program [member] Member sny:ShelfRegistrationStatementProgramMember
2009 Borrowings by name [axis] Axis ifrs-full:BorrowingsByNameAxis
2010 Borrowings by name [member] Member ifrs-full:BorrowingsByNameMember
2011 October 2009 EMTN ISIN XS0456451771 [member] Member sny:October2009Emtnisinxs0456451771Member
2012 September 2013 EMTN ISIN FR0011560333 [member] Member sny:September2013EMTNISINFR0011560333Member
2013 November 2013 EMTN ISIN FR0011625433 [member] Member sny:November2013Emtnisinfr0011625433Member
2014 September 2014 EMTN ISIN FR0012146777 [member] Member sny:September2014EMTNISINFR0012146777Member
2015 September 2014 EMTN ISIN FR0012146801 [member] Member sny:September2014EMTNISINFR0012146801Member
2016 September 2015 EMTN ISIN FR0012969012 [member] Member sny:September2015EMTNISINFR0012969012Member
2017 September 2015 EMTN ISIN FR0012969020 [member] Member sny:September2015EMTNISINFR0012969020Member
2018 September 2015 EMTN ISIN FR0012969038 [member] Member sny:September2015EMTNISINFR0012969038Member
2019 April 2016 EMTN ISIN FR0013143989 [member] Member sny:April2016EMTNISINFR0013143989Member
2020 April 2016 EMTN ISIN FR0013143997 [member] Member sny:April2016emtnisinfr0013143997Member
2021 April 2016 EMTN ISIN FR00113144003 [member] Member sny:April2016emtnisinfr00113144003Member
2022 September 2016 EMTN ISIN FR0013201613 [member] Member sny:September2016EMTNISINFR0013201613Member
2023 September 2016 EMTN ISIN FR0013201621 [member] Member sny:September2016Emtnisinfr0013201621Member
2024 September 2016 EMTNISINFR0013201639 [member] Member sny:September2016Emtnisinfr0013201639Member
2025 March 2018 EMTN ISIN FR0013324316 [member] Member sny:March2018EmtnIsinFr0013324316Member
2026 March 2018 EMTN ISIN FR0013324324 [member] Member sny:March2018EmtnIsinFr0013324324Member
2027 March 2018 EMTN ISIN FR0013324332 [member] Member sny:March2018EmtnIsinFr0013324332Member
2028 March 2018 EMTN ISIN FR0013324340 [member] Member sny:March2018EmtnIsinFr0013324340Member
2029 March 2018 EMTN ISIN FR0013324357 [member] Member sny:March2018EmtnIsinFr0013324357Member
2030 March 2018 EMTN ISIN FR0013324373 [member] Member sny:March2018EmtnIsinFr0013324373Member
2031 March 2011 SNFISIN US80105NAG07 [member] Member sny:March2011SNFISINUS80105NAG07Member
2032 June 2010 GZISIN US372917AS37 [member] Member sny:June2010gzisinus372917as37Member
2033 June 2018 SNFISINUS801060AC87 [member] Member sny:June2018SNFISINUS801060AC87Member
2034 June 2018 SNFISINUS801060AD60 [member] Member sny:June2018SNFISINUS801060AD60Member
2035 Disclosure of detailed information about borrowings [line items] LineItems ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems
2036 Maturity date Concept (Text/String) For Period ifrs-full:BorrowingsMaturity
2037 Annual interest rate Concept (Percent) As Of ifrs-full:BorrowingsInterestRate
2038 Annual interest rate Concept (Text/String) For Period ifrs-full:BorrowingsInterestRateBasis
2039 Notional amount Concept (Monetary) As Of ifrs-full:NotionalAmount
2040 1182 - Disclosure - Debt, Cash and Cash Equivalents - Summary of Debt by Maturity at Value on Redemption (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureDebtCashAndCashEquivalentsSummaryOfDebtByMaturityAtValueOnRedemption
2041 Disclosure of detailed information about borrowings [table] Table

*

*

ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsTable
2042 Measurement [axis] Axis ifrs-full:MeasurementAxis
2043 Aggregated measurement [member] Member ifrs-full:AggregatedMeasurementMember
2044 Value on redemption [member] Member sny:ValueOnRedemptionMember
2045 Maturity [axis] Axis ifrs-full:MaturityAxis
2046 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
2047 Less than 1 year [member] Member ifrs-full:NotLaterThanOneYearMember
2048 Later than one year and not later than two years [member] Member ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember
2049 Later than two years and not later than three years [member] Member ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember
2050 Later than three years and not later than four years [member] Member ifrs-full:LaterThanThreeYearsAndNotLaterThanFourYearsMember
2051 Later than four years and not later than five years [member] Member ifrs-full:LaterThanFourYearsAndNotLaterThanFiveYearsMember
2052 More than 5 years [member] Member ifrs-full:LaterThanFiveYearsMember
2053 Disclosure of detailed information about borrowings [line items] LineItems ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems
2054 Bond issues Concept (Monetary) As Of Credit ifrs-full:BondsIssued
2055 Other bank borrowings Concept (Monetary) As Of Credit sny:OtherBankBorrowings
2056 Finance lease obligations Concept (Monetary) As Of Credit ifrs-full:FinanceLeaseLiabilities
2057 Other borrowings Concept (Monetary) As Of Credit ifrs-full:OtherBorrowings
2058 Bank credit balances Concept (Monetary) As Of Credit ifrs-full:BankOverdraftsClassifiedAsCashEquivalents
2059 Interest rate and currency derivatives used to manage debt Concept (Monetary) As Of Debit sny:InterestRateAndCurrencyDerivativesUsedToManageDebt
2060 Total debt Concept (Monetary) As Of Credit ifrs-full:Borrowings
2061 Cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
2062 Interest rate and currency derivatives used to manage cash and cash equivalents Concept (Monetary) As Of Debit sny:InterestRateAndCurrencyDerivativesUsedToManageCashAndCashEquivalent
2063 Net debt Concept (Monetary) As Of Credit sny:DebtNetOfCashAndCashEquivalents
2064 1183 - Disclosure - Debt, Cash and Cash Equivalents - Summary of Debt by Interest Rate (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureDebtCashAndCashEquivalentsSummaryOfDebtByInterestRate
2065 Disclosure of financial instruments by type of interest rate [table] Table

*

*

ifrs-full:DisclosureOfFinancialInstrumentsByTypeOfInterestRateTable
2066 Maturity [axis] Axis ifrs-full:MaturityAxis
2067 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
2068 Less than 1 year [member] Member ifrs-full:NotLaterThanOneYearMember
2069 Later than one year and not later than two years [member] Member ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember
2070 Later than two years and not later than three years [member] Member ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember
2071 Later than three years and not later than four years [member] Member ifrs-full:LaterThanThreeYearsAndNotLaterThanFourYearsMember
2072 Later than four years and not later than five years [member] Member ifrs-full:LaterThanFourYearsAndNotLaterThanFiveYearsMember
2073 More than 5 years [member] Member ifrs-full:LaterThanFiveYearsMember
2074 Measurement [axis] Axis ifrs-full:MeasurementAxis
2075 Aggregated measurement [member] Member ifrs-full:AggregatedMeasurementMember
2076 Value on redemption after derivative instruments [member] Member sny:ValueOnRedemptionAfterDerivativeInstrumentsMember
2077 Value on redemption before derivative instruments [member] Member sny:ValueOnRedemptionBeforeDerivativeInstrumentsMember
2078 Types of interest rates [axis] Axis ifrs-full:TypesOfInterestRatesAxis
2079 Interest rate types [member] Member ifrs-full:InterestRateTypesMember
2080 Fixed-rate debt [member] Member ifrs-full:FixedInterestRateMember
2081 Floating-rate debt [member] Member ifrs-full:FloatingInterestRateMember
2082 Disclosure of financial instruments by type of interest rate [line items] LineItems ifrs-full:DisclosureOfFinancialInstrumentsByTypeOfInterestRateLineItems
2083 Debt Concept (Monetary) For Period Credit sny:IncreaseDecreaseOfBorrowings
2084 Borrowings in Euros Concept (Monetary) As Of Credit sny:BorrowingsInEur
2085 Cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
2086 Net debt Concept (Monetary) As Of Credit sny:DebtNetOfCashAndCashEquivalents
2087 Borrowings in USD Concept (Monetary) As Of sny:BorrowingsInUsd
2088 Borrowings in Japanese yen Concept (Monetary) As Of Credit sny:BorrowingsInJapaneseYen
2089 Debt percent Concept (Percent) As Of sny:DebtPercent
2090 Cash and cash equivalents in EUR Concept (Monetary) As Of sny:CashAndCashEquivalentsInEur
2091 Cash and cash equivalents in USD Concept (Monetary) As Of sny:CashAndCashEquivalentsInUsd
2092 Borrowings in Singapore dollar Concept (Monetary) As Of Credit sny:BorrowingsInSingaporeDollar
2093 Borrowings in Chinese yuan renminbi Concept (Monetary) As Of Credit sny:BorrowingsInChineseYuanRenminbi
2094 Cash and cash equivalent percent Concept (Percent) As Of sny:CashAndCashEquivalentPercentFloatingRate
2095 1184 - Disclosure - Debt, Cash and Cash Equivalents - Summary of Interest Rate of Net Debt at Value on Redemption (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureDebtCashAndCashEquivalentsSummaryOfInterestRateOfNetDebtAtValueOnRedemption
2096 Disclosure Of Interest Rate Of Debt NetOf Cash And Cash Equivalent [Table] Table

*

*

sny:DisclosureOfInterestRateOfDebtNetofCashAndCashEquivalentTable
2097 Measurement [axis] Axis ifrs-full:MeasurementAxis
2098 Aggregated measurement [member] Member ifrs-full:AggregatedMeasurementMember
2099 Value on redemption after derivative instruments [member] Member sny:ValueOnRedemptionAfterDerivativeInstrumentsMember
2100 Types of interest rates [axis] Axis ifrs-full:TypesOfInterestRatesAxis
2101 Interest rate types [member] Member ifrs-full:InterestRateTypesMember
2102 Fixed-rate debt [member] Member ifrs-full:FixedInterestRateMember
2103 Floating-rate debt [member] Member ifrs-full:FloatingInterestRateMember
2104 Disclosure of Interest Rate of Debt Net of Cash and Cash Equivalent [Line Items] LineItems sny:DisclosureOfInterestRateOfDebtNetOfCashAndCashEquivalentLineItems
2105 Debt Concept (Monetary) As Of Credit ifrs-full:Borrowings
2106 Cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
2107 Net debt Concept (Monetary) As Of Credit sny:DebtNetOfCashAndCashEquivalents
2108 Debt percent Concept (Percent) As Of sny:DebtPercent
2109 1185 - Disclosure - Debt, Cash and Cash Equivalents - Summary of Interest Rate Fluctuations of Debt Net of Cash and Cash Equivalents (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureDebtCashAndCashEquivalentsSummaryOfInterestRateFluctuationsOfDebtNetOfCashAndCashEquivalents
2110 Disclosure Of Interest Rate Of Debt NetOf Cash And Cash Equivalent [Table] Table

*

*

sny:DisclosureOfInterestRateOfDebtNetofCashAndCashEquivalentTable
2111 Types of interest rates [axis] Axis ifrs-full:TypesOfInterestRatesAxis
2112 Interest rate types [member] Member ifrs-full:InterestRateTypesMember
2113 +100 BP [Member] Member sny:PlusHundredBasisPointsMember
2114 +25 BP [Member] Member sny:PlusTwentyFiveBasisPointsMember
2115 -25 BP [Member] Member sny:MinusTwentyFiveBasisPointsMember
2116 -100 BP [Member] Member sny:MinusHundredBasisPointsMember
2117 Borrowings by name [axis] Axis ifrs-full:BorrowingsByNameAxis
2118 Borrowings by name [member] Member ifrs-full:BorrowingsByNameMember
2119 Change in Euro and US dollar short-term interest rates [member] Member sny:ChangeInEuroAndUSDollarShorttermInterestRatesMember
2120 Disclosure of Interest Rate of Debt Net of Cash and Cash Equivalent [Line Items] LineItems sny:DisclosureOfInterestRateOfDebtNetOfCashAndCashEquivalentLineItems
2121 Impact on pre-tax net income Concept (Monetary) For Period Credit sny:ImpactOfChangeInInterestRateOnPreTaxIncome
2122 Impact on pre-tax income/(expense) recognized directly in equity Concept (Monetary) For Period Credit sny:ImpactOfPreTaxIncomeRecognisedInEquity
2123 1186 - Disclosure - Debt, Cash and Cash Equivalents - Summary of Debt by Currency (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureDebtCashAndCashEquivalentsSummaryOfDebtByCurrency
2124 Disclosure Of Debt By Currency [Table] Table

*

*

sny:DisclosureOfDebtByCurrencyTable
2125 Measurement [axis] Axis ifrs-full:MeasurementAxis
2126 Aggregated measurement [member] Member ifrs-full:AggregatedMeasurementMember
2127 Value on redemption before derivative instruments [member] Member sny:ValueOnRedemptionBeforeDerivativeInstrumentsMember
2128 Value on redemption after derivative instruments [member] Member sny:ValueOnRedemptionAfterDerivativeInstrumentsMember
2129 Disclosure Of Debt By Currency [Line Items] LineItems sny:DisclosureOfDebtByCurrencyLineItems
2130 Euro Concept (Monetary) As Of Credit sny:DebtNetOfCashAndCashEquivalentsInEUR
2131 US dollar Concept (Monetary) As Of Credit sny:DebtNetOfCashAndCashEquivalentsInUsd
2132 Singapore dollar Concept (Monetary) As Of Credit sny:DebtNetOfCashAndCashEquivalentsInSGD
2133 Japanese yen Concept (Monetary) As Of Credit sny:DebtNetOfCashAndCashEquivalentsInJPY
2134 Chinese yuan renminbi Concept (Monetary) As Of Credit sny:DebtNetOfCashAndCashEquivalentsInCNY
2135 Other currencies Concept (Monetary) As Of Credit sny:DebtNetOfCashAndCashEquivalentsInOtherCurrencies
2136 Net debt Concept (Monetary) As Of Credit sny:DebtNetOfCashAndCashEquivalents
2137 1187 - Disclosure - Debt, Cash and Cash Equivalents - Summary of Market Value of Net Debt (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureDebtCashAndCashEquivalentsSummaryOfMarketValueOfNetDebt
2138 Disclosure of detailed information about borrowings [table] Table

*

*

ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsTable
2139 Measurement [axis] Axis ifrs-full:MeasurementAxis
2140 Aggregated measurement [member] Member ifrs-full:AggregatedMeasurementMember
2141 At market value [member] Member sny:AtMarketValueMember
2142 Value on redemption [member] Member sny:ValueOnRedemptionMember
2143 Disclosure of detailed information about borrowings [line items] LineItems ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems
2144 Total debt Concept (Monetary) As Of Credit ifrs-full:Borrowings
2145 Total debt at redemption Concept (Monetary) For Period Credit sny:RedemptionOfDebtInstrumentIssued
2146 1188 - Disclosure - Debt, Cash and Cash Equivalents - Amount of Future Undiscounted Contractual Cash Flows Relating to Debt and Derivative Instruments Designated as Hedges of Debt (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureDebtCashAndCashEquivalentsAmountOfFutureUndiscountedContractualCashFlowsRelatingToDebtAndDerivativeInstrumentsDesignatedAsHedgesOfDebt
2147 Disclosure of maturity analysis for derivative financial liabilities [table] Table

*

*

ifrs-full:DisclosureOfMaturityAnalysisForDerivativeFinancialLiabilitiesTable
2148 Maturity [axis] Axis ifrs-full:MaturityAxis
2149 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
2150 Less than 1 year [member] Member ifrs-full:NotLaterThanOneYearMember
2151 Later than one year and not later than two years [member] Member ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember
2152 Later than two years and not later than three years [member] Member ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember
2153 Later than three years and not later than four years [member] Member ifrs-full:LaterThanThreeYearsAndNotLaterThanFourYearsMember
2154 Later than four years and not later than five years [member] Member ifrs-full:LaterThanFourYearsAndNotLaterThanFiveYearsMember
2155 More than 5 years [member] Member ifrs-full:LaterThanFiveYearsMember
2156 Disclosure of maturity analysis for derivative financial liabilities [line items] LineItems ifrs-full:DisclosureOfMaturityAnalysisForDerivativeFinancialLiabilitiesLineItems
2157 Debt Concept (Monetary) As Of Credit ifrs-full:NonderivativeFinancialLiabilitiesUndiscountedCashFlows
2158 Principal Concept (Monetary) As Of Credit sny:PrincipalUndiscountedCashFlow
2159 Interest Concept (Monetary) As Of Credit sny:InterestUndiscountedCashFlow
2160 Net cash flows related to derivative instruments Concept (Monetary) As Of Credit ifrs-full:DerivativeFinancialLiabilitiesUndiscountedCashFlows
2161 Total Concept (Monetary) As Of Credit sny:TotalUndiscountedCashFlow
2162 1189 - Disclosure - Liabilities Related to Business Combinations and to Non-Controlling Interests - Summary of Movements in Liabilities Related to Business Combinations and to Non-Controlling Interests (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureLiabilitiesRelatedToBusinessCombinationsAndToNonControllingInterestsSummaryOfMovementsInLiabilitiesRelatedToBusinessCombinationsAndToNonControllingInterests
2163 Disclosure Of Liabilities Related To Business Combinations And To Noncontrolling Interests [Table] Table

*

*

sny:DisclosureOfLiabilitiesRelatedToBusinessCombinationsAndToNoncontrollingInterestsTable
2164 Business Combinations [Axis] Axis ifrs-full:BusinessCombinationsAxis
2165 Entity's total for business combinations [member] Member ifrs-full:EntitysTotalForBusinessCombinationsMember
2166 Liabilities Related to Non-controlling Interests [member] Member sny:LiabilitiesRelatingToNoncontrollingInterestMember
2167 Bayer contingent purchase consideration arising from the acquisition of Genzyme [member] Member sny:BayerContingentPurchaseConsiderationArisingFromTheAcquisitionOfGenzymeMember
2168 MSD contingent consideration (European vaccines business) [member] Member sny:MSDContingentConsiderationEuropeanVaccinesBusinessMember
2169 Other liabilities [member] Member sny:OtherLiabilities1Member
2170 Classes of liabilities [axis] Axis ifrs-full:ClassesOfLiabilitiesAxis
2171 Liabilities [member] Member ifrs-full:LiabilitiesMember
2172 CVRs issued in connection with the acquisition of Genzyme [member] Member sny:CVRsIssuedInConnectionWithTheAcquisitionOfGenzymeMember
2173 Disclosure Of Liabilities Related To Business Combinations And To Noncontrolling Interests [line items] LineItems sny:DisclosureOfLiabilitiesRelatedToBusinessCombinationsAndToNoncontrollingInterestsLineItems
2174 Beginning balance Concept (Monetary) As Of Credit ifrs-full:ContingentLiabilitiesRecognisedInBusinessCombination
2175 New transactions Concept (Monetary) For Period Credit ifrs-full:NewLiabilitiesContingentLiabilitiesRecognisedInBusinessCombination
2176 Payments made Concept (Monetary) For Period Debit ifrs-full:SettledLiabilitiesContingentLiabilitiesRecognisedInBusinessCombination
2177 Fair value remeasurements through profit or loss: (gain)/loss (including unwinding of discount) Concept (Monetary) For Period ifrs-full:GainsLossesRecognisedInProfitOrLossFairValueMeasurementLiabilities
2178 Other movements Concept (Monetary) For Period Credit sny:OtherMovements
2179 Currency translation differences Concept (Monetary) For Period Credit sny:IncreaseDecreaseThroughNetExchangeDifferencesBusinessCombinationsAndNoncontrollingInterests
2180 Ending balance Concept (Monetary) As Of Credit ifrs-full:ContingentLiabilitiesRecognisedInBusinessCombination
2181 1190 - Disclosure - Liabilities Related to Business Combinations and to Non-Controlling Interests - Summary of Movements in Liabilities Related to Business Combinations and to Non-Controlling Interests (Parenthetical) (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureLiabilitiesRelatedToBusinessCombinationsAndToNonControllingInterestsSummaryOfMovementsInLiabilitiesRelatedToBusinessCombinationsAndToNonControllingInterestsParenthetical
2182 Disclosure Of Liabilities Related To Business Combinations And To Noncontrolling Interests [Table] Table

*

*

sny:DisclosureOfLiabilitiesRelatedToBusinessCombinationsAndToNoncontrollingInterestsTable
2183 Business Combinations [Axis] Axis ifrs-full:BusinessCombinationsAxis
2184 Entity's total for business combinations [member] Member ifrs-full:EntitysTotalForBusinessCombinationsMember
2185 True North Therapeutics [member] Member sny:TrueNorthTherapeuticsMember
2186 Bioverativ employees [member] Member sny:BioverativEmployeesMember
2187 Disclosure Of Liabilities Related To Business Combinations And To Noncontrolling Interests [line items] LineItems sny:DisclosureOfLiabilitiesRelatedToBusinessCombinationsAndToNoncontrollingInterestsLineItems
2188 Quoted market price per share of CVRs issued in connection with the acquisition of Genzyme Concept (Share) As Of sny:QuotedMarketPricePerShareOfCVRsIssuedInConnectionWithTheAcquisitionOfGenzyme
2189 Non-current liabilities related to business combinations and to non-controlling interests Concept (Monetary) As Of Credit sny:NoncurrentLiabilitiesRelatedToBusinessCombinationsAndToNoncontrollingInterests
2190 Current liabilities related to business combinations and to non-controlling interests Concept (Monetary) As Of Credit sny:CurrentLiabilitiesRelatedToBusinessCombinationsAndToNonControllingInterests
2191 Number of potential payment Concept (Integer) For Period sny:NumberOfPotentialPayment
2192 Acquisition potential payment Concept (Monetary) As Of Credit sny:ContingentConsiderationPayable
2193 Contingent consideration liabilities Concept (Monetary) As Of Credit sny:ContingentConsiderationLiabilities
2194 1191 - Disclosure - Liabilities Related to Business Combinations and to Non-Controlling Interests - Additional Information (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureLiabilitiesRelatedToBusinessCombinationsAndToNonControllingInterestsAdditionalInformation
2195 Disclosure Of Liabilities Related To Business Combinations And To Noncontrolling Interests [Table] Table

*

*

sny:DisclosureOfLiabilitiesRelatedToBusinessCombinationsAndToNoncontrollingInterestsTable
2196 Business Combinations [Axis] Axis ifrs-full:BusinessCombinationsAxis
2197 Entity's total for business combinations [member] Member ifrs-full:EntitysTotalForBusinessCombinationsMember
2198 Bayer schering pharma AG [member] Member sny:BayerScheringPharmaAGMember
2199 True North Therapeutics [member] Member sny:TrueNorthTherapeuticsMember
2200 Range [axis] Axis ifrs-full:RangeAxis
2201 Ranges [member] Member ifrs-full:RangesMember
2202 Top of range [member] Member ifrs-full:TopOfRangeMember
2203 Classes of liabilities [axis] Axis ifrs-full:ClassesOfLiabilitiesAxis
2204 Liabilities [member] Member ifrs-full:LiabilitiesMember
2205 MSD contingent consideration (European vaccines business) [member] Member sny:MSDContingentConsiderationEuropeanVaccinesBusinessMember
2206 Counterparties [axis] Axis ifrs-full:CounterpartiesAxis
2207 Counterparties [member] Member ifrs-full:CounterpartiesMember
2208 Entities and companies managed by Bristol-Myers Squibb [member] Member sny:BristolMyersSquibbMember
2209 Disclosure Of Liabilities Related To Business Combinations And To Noncontrolling Interests [line items] LineItems sny:DisclosureOfLiabilitiesRelatedToBusinessCombinationsAndToNoncontrollingInterestsLineItems
2210 Fair value of the contingent consideration payable to Bioverativ Concept (Monetary) As Of Credit sny:FairValueOfTheContingentConsiderationPayableToBioverativ
2211 Increase in fair value of liability Concept (Percent) As Of sny:PercentageIncreaseInFairValueLiabilities
2212 Potentiel payments related to percentage of sales of alemtuzumab Concept (Monetary) For Period Credit sny:PotentielPaymentsRelatedToPercentageOfSales
2213 Payment to sale of business period Concept (xbrli:durationItemType) For Period sny:PaymentToSaleOfBusinessPeriod
2214 Milestone payment Concept (Monetary) For Period Credit sny:SalesMilestonesPayment
2215 Milestone payment period Concept (Year) For Period sny:MilestonePaymentTerm
2216 Fair value of the contingent consideration payable to Bayer Concept (Monetary) As Of Credit sny:FairValueOfTheContingentConsiderationPayableToBayer
2217 Contingent consideration liability Concept (Monetary) As Of Credit sny:DisclosureOfLiabilitiesRelatedToBusinessCombinationsAndToNoncontrollingInterests
2218 Commitments relating to contingent consideration in connection with business combinations Concept (Monetary) As Of Credit sny:CommitmentsRelatingToContingentConsiderationInConnectionWithBusinessCombinations
2219 Commitments relating to contingent consideration in connection with business combinations and buyouts of non-controlling interests Concept (Monetary) As Of Credit sny:CommitmentsRelatingToContingentConsiderationInConnectionWithBusinessCombinationsAndBuyoutsOfNoncontrollingInterests
2220 1192 - Disclosure - Liabilities Related to Business Combinations and to Non-Controlling Interests - Summary of Maximum Amount of Contingent Consideration Payable and Firm Commitments to Buy Out Non-Controlling Interests (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureLiabilitiesRelatedToBusinessCombinationsAndToNonControllingInterestsSummaryOfMaximumAmountOfContingentConsiderationPayableAndFirmCommitmentsToBuyOutNonControllingInt_Xa
2221 Disclosure Of maximum amount of contingent consideration payable and firm commitments to buy out non-controlling interests [Table] Table

*

*

sny:DisclosureOfMaximumAmountOfContingentConsiderationPayableAndFirmCommitmentsToBuyOutNoncontrollingInterestsTable
2222 Maturity [axis] Axis ifrs-full:MaturityAxis
2223 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
2224 Less than 1 year [member] Member ifrs-full:NotLaterThanOneYearMember
2225 1 to 3 years [member] Member ifrs-full:LaterThanOneYearAndNotLaterThanThreeYearsMember
2226 3 to 5 years [member] Member ifrs-full:LaterThanThreeYearsAndNotLaterThanFiveYearsMember
2227 More than 5 years [member] Member ifrs-full:LaterThanFiveYearsMember
2228 Disclosure Of maximum amount of contingent consideration payable and firm commitments to buy out non-controlling interests [Line Items] LineItems sny:DisclosureOfMaximumAmountOfContingentConsiderationPayableAndFirmCommitmentsToBuyOutNoncontrollingInterestsLineItems
2229 Commitments relating to contingent consideration in connection with business combinations Concept (Monetary) As Of Credit sny:CommitmentsRelatingToContingentConsiderationInConnectionWithBusinessCombinations
2230 1193 - Disclosure - Liabilities Related to Business Combinations and to Non-Controlling Interests - Summary of Maximum Amount of Contingent Consideration Payable and Firm Commitments to Buy Out Non-Controlling Interests (Parenthetical) (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureLiabilitiesRelatedToBusinessCombinationsAndToNonControllingInterestsSummaryOfMaximumAmountOfContingentConsiderationPayableAndFirmCommitmentsToBuyOutNonControllingInt_XaParenthetical
2231 Disclosure Of maximum amount of contingent consideration payable and firm commitments to buy out non-controlling interests [Table] Table

*

*

sny:DisclosureOfMaximumAmountOfContingentConsiderationPayableAndFirmCommitmentsToBuyOutNoncontrollingInterestsTable
2232 Business Combinations [Axis] Axis ifrs-full:BusinessCombinationsAxis
2233 Entity's total for business combinations [member] Member ifrs-full:EntitysTotalForBusinessCombinationsMember
2234 Bayer schering pharma AG [member] Member sny:BayerScheringPharmaAGMember
2235 Genzyme [member] Member sny:GenzymeMember
2236 Disclosure Of maximum amount of contingent consideration payable and firm commitments to buy out non-controlling interests [Line Items] LineItems sny:DisclosureOfMaximumAmountOfContingentConsiderationPayableAndFirmCommitmentsToBuyOutNoncontrollingInterestsLineItems
2237 Commitments relating to contingent consideration in connection with business combinations Bayer Concept (Monetary) As Of Credit sny:CommitmentsRelatingToContingentConsiderationInConnectionWithBusinessCombinationsBayer
2238 Commitments relating to contingent consideration of which CVR issued in connection with the Genzyme acquisition Concept (Monetary) For Period Credit sny:CommitmentsRelatingToContingentConsiderationOfWhichCVRIssuedInConnectionWithTheGenzymeAcquisition
2239 1194 - Disclosure - Provisions and Other Liabilities - Summary of Non Current Provisions and Other Non-current Liabilities (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureProvisionsAndOtherLiabilitiesSummaryOfNonCurrentProvisionsAndOtherNoncurrentLiabilities
2240 Implied Table Table

*

*

implied:Table
2241 Provisions and other liabilities [abstract] Abstract sny:ProvisionsAndOtherLiabilitiesAbstract
2242 Provisions Concept (Monetary) As Of Credit ifrs-full:NoncurrentProvisions
2243 Other non-current liabilities Concept (Monetary) As Of Credit ifrs-full:OtherNoncurrentLiabilities
2244 Total Concept (Monetary) As Of Credit sny:NoncurrentProvisionsAndOtherNoncurrentLiabilities
2245 1195 - Disclosure - Provisions and Other Liabilities - Summary of Movements in Non-current Provisions (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureProvisionsAndOtherLiabilitiesSummaryOfMovementsInNoncurrentProvisions
2246 Disclosure Of Noncurrent Provisions [Table] Table

*

*

sny:DisclosureOfNoncurrentProvisionsTable
2247 Classes of other provisions [axis] Axis ifrs-full:ClassesOfProvisionsAxis
2248 Other provisions [member] Member ifrs-full:OtherProvisionsMember
2249 Provisions for pensions and other post-employment benefits [member] Member sny:ProvisionsForPensionsAndOtherPostemploymentBenefitsMember
2250 Provisions for other long-term benefits [member] Member sny:ProvisionsForOtherLongTermBenefitsMember
2251 Restructuring provisions [member] Member sny:NoncurrentRestructuringProvisionMember
2252 Other provisions [member] Member ifrs-full:MiscellaneousOtherProvisionsMember
2253 Disclosure Of Non-current Provisions [line items] LineItems sny:DisclosureOfNoncurrentProvisionsLineItems
2254 Beginning balance Concept (Monetary) As Of Credit ifrs-full:NoncurrentProvisions
2255 Changes in scope of consolidation Concept (Monetary) For Period Credit ifrs-full:AcquisitionsThroughBusinessCombinationsOtherProvisions
2256 Increases in provisions Concept (Monetary) For Period Credit ifrs-full:ChangesInOtherProvisions
2257 Provisions utilized Concept (Monetary) For Period Debit ifrs-full:ProvisionUsedOtherProvisions
2258 Reversals of unutilized provisions Concept (Monetary) For Period Debit sny:IncreaseDecreaseOfUnusedProvisionReversedOtherProvisions
2259 Transfers Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughTransfersAndOtherChangesOtherProvisions
2260 Net interest related to employee benefits, and unwinding of discount Concept (Monetary) For Period Credit sny:NetInterestRelatedToEmployeesBenefitsAndUnwindingOfDiscount
2261 Unrealized gains and losses Concept (Monetary) For Period Credit sny:UnrealizedGainsAndLosses
2262 Currency translation differences Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesOtherProvisions
2263 Actuarial gains and losses on defined-benefit plans Concept (Monetary) For Period Credit sny:ActuarialGainsAndLossesOnDefinedBenefitPlans
2264 Ending balance Concept (Monetary) As Of Credit ifrs-full:NoncurrentProvisions
2265 1196 - Disclosure - Provisions and Other Liabilities - Additional Information (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureProvisionsAndOtherLiabilitiesAdditionalInformation
2266 Provisions And Other Noncurrent Liabilities [Table] Table

*

*

sny:ProvisionsAndOtherNoncurrentLiabilitiesTable
2267 Defined benefit plans [axis] Axis ifrs-full:DefinedBenefitPlansAxis
2268 Defined benefit plans [member] Member ifrs-full:DefinedBenefitPlansMember
2269 Sanofi-Aventis Plus [member] Member sny:SanofiaventisPlusPensionPlanMember
2270 Defined benefit pension plans [member] Member sny:DefinedBenefitPensionPlansMember
2271 Multi-employer plan (Pensionskasses) [member] Member ifrs-full:MultiemployerDefinedBenefitPlansMember
2272 France [member] Member country:FR
2273 Research and development agreement with Regeneron [member] Member sny:ResearchAndDevelopmentAgreementWithRegeneronMember
2274 Research And Development Portfolio [member] Member sny:ResearchAndDevelopmentPortfolioMember
2275 Lump-sum retirement benefit plans [member] Member sny:LumpsumRetirementBenefitPlansMember
2276 Top-up defined-benefit pension plan [member] Member sny:TopupDefinedbenefitPensionPlanMember
2277 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
2278 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
2279 Germany [member] Member country:DE
2280 US [member] Member country:US
2281 UK [member] Member country:GB
2282 France [member] Member country:FR
2283 Net defined benefit liability (asset) [axis] Axis ifrs-full:NetDefinedBenefitLiabilityAssetAxis
2284 Net defined benefit liability (asset) [member] Member ifrs-full:NetDefinedBenefitLiabilityAssetMember
2285 Non qualified defined benefit pension plans [member] Member sny:NonQualifiedDefinedBenefitPensionPlansMember
2286 Qualified defined benefit pension plans [member] Member sny:QualifiedDefinedBenefitPensionPlansMember
2287 Plan assets [member] Member ifrs-full:PlanAssetsMember
2288 Classes of other provisions [axis] Axis ifrs-full:ClassesOfProvisionsAxis
2289 Other provisions [member] Member ifrs-full:OtherProvisionsMember
2290 Other environment related provision [member] Member ifrs-full:OtherEnvironmentRelatedProvisionMember
2291 Range [axis] Axis ifrs-full:RangeAxis
2292 Ranges [member] Member ifrs-full:RangesMember
2293 Bottom of range [member] Member ifrs-full:BottomOfRangeMember
2294 Top of range [member] Member ifrs-full:TopOfRangeMember
2295 Classes of Contingent Liabilities [Axis] Axis ifrs-full:ClassesOfContingentLiabilitiesAxis
2296 Contingent liabilities [member] Member ifrs-full:ContingentLiabilitiesMember
2297 Evotec [member] Member sny:EvotecMember
2298 Maturity [axis] Axis ifrs-full:MaturityAxis
2299 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
2300 Greater than 12 Months [member] Member ifrs-full:LaterThanOneYearMember
2301 Provisions and other non-current liabilities [Line Items] LineItems sny:ProvisionsAndOtherNoncurrentLiabilitiesLineItems
2302 Number of Major countries included in pension obligations Concept (Decimal) For Period sny:NumberOfCountriesIncludedInPensionPlans
2303 Number of Major countries included in pension obligations Concept (Percent) As Of sny:PensionObligationPercentageToDefinedBenefitLiability
2304 Pension obligations, percentage to plan assets Concept (Percent) As Of sny:PensionObligationPercentageToPlanAssets
2305 Employer's contribution percentage Concept (Percent) For Period sny:EmployerContributePercentageOnAmountsExceedingTheSocialSecurityCeiling
2306 Defined benefit obligation, at present value Concept (Monetary) As Of Credit ifrs-full:DefinedBenefitObligationAtPresentValue
2307 Number of types of defined-benefit plan Concept (Integer) For Period sny:NumberOfDefinedBenefitPlans
2308 Defined-benefit liability Concept (Monetary) As Of Credit sny:DefinedBenefitLiabilities
2309 Vesting right percentage Concept (Percent) For Period sny:DefinedBenefitPlansVestingRightsPercentage
2310 Retirement age Concept (Integer) For Period sny:RetirementAge
2311 Notional retirement age Concept (xbrli:durationItemType) For Period sny:NotionalRetirementAge
2312 Average residual holding periods Concept (xbrli:durationItemType) For Period sny:AverageResidualHoldingPeriodsUnderVariousEarlyRetirementPlans
2313 Restructuring provision Concept (Monetary) As Of Credit ifrs-full:RestructuringProvision
2314 Commitment period Concept (xbrli:durationItemType) For Period sny:CommitmentTerm
2315 Identified environmental risks provisions estimated obligation period Concept (xbrli:durationItemType) For Period sny:IdentifiedEnvironmentalRisksProvisionsEstimatedObligationPeriod
2316 Other provisions, expected utilized amount in 2018 Concept (Monetary) For Period Debit sny:IdentifiedEnvironmentalRisksProvisionsExpectedUtilizedAmountNextTwelveMonths
2317 Other provisions, expected utilized amount in 2019 through 2022 Concept (Monetary) For Period Debit sny:IdentifiedEnvironmentalRisksProvisionsExpectedUtilizedAmountYearTwoToFive
2318 Other non-current liabilities Concept (Monetary) As Of Credit ifrs-full:OtherNoncurrentLiabilities
2319 Liability recognized representing the estimated cost Concept (Monetary) For Period Credit sny:LiabilityRecognizedRepresentingEstimatedCost
2320 Tax charge on deemed repatriation attributable to accumulated earnings payable period Concept (xbrli:durationItemType) For Period sny:TaxChargeOnDeemedRepatriationAttributableToAccumulatedEarningsPayablePeriod
2321 1197 - Disclosure - Provisions and Other Non-current Liabilities - Summary of Financial and Demographic Assumptions (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureProvisionsAndOtherNoncurrentLiabilitiesSummaryOfFinancialAndDemographicAssumptions
2322 Disclosure of defined benefit plans [table] Table

*

*

ifrs-full:DisclosureOfDefinedBenefitPlansTable
2323 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
2324 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
2325 France [member] Member country:FR
2326 Germany [member] Member country:DE
2327 US [member] Member country:US
2328 UK [member] Member country:GB
2329 Disclosure of defined benefit plans [line items] LineItems ifrs-full:DisclosureOfDefinedBenefitPlansLineItems
2330 Discount rate, bottom of range Concept (Percent) As Of sny:ActuarialAssumptionOfDiscountRatesBottomOfRange
2331 Discount rate, top of range Concept (Percent) As Of ifrs-full:ActuarialAssumptionOfDiscountRates
2332 General inflation rate Concept (Percent) As Of ifrs-full:ActuarialAssumptionOfExpectedRatesOfInflation
2333 Pension benefit indexation, bottom of range Concept (Percent) As Of sny:ActuarialAssumptionOfExpectedRatesOfPensionIncreasesBottomOfRange
2334 Pension benefit indexation, top of range Concept (Percent) As Of ifrs-full:ActuarialAssumptionOfExpectedRatesOfPensionIncreases
2335 Healthcare cost inflation rate Concept (Percent) As Of ifrs-full:ActuarialAssumptionOfMedicalCostTrendRates
2336 Retirement age, bottom of range Concept (xbrli:durationItemType) For Period sny:ActuarialAssumptionOfRetirementAgeBottomOfRange
2337 Retirement age, top of range Concept (xbrli:durationItemType) For Period sny:ActuarialAssumptionOfRetirementAgeTopOfRange
2338 Mortality table Concept (Text/String) For Period sny:ActuarialAssumptionMortalityTableUsed
2339 1198 - Disclosure - Provisions and Other Non-current Liabilities - Summary of Financial and Demographic Assumptions (Parenthetical) (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureProvisionsAndOtherNoncurrentLiabilitiesSummaryOfFinancialAndDemographicAssumptionsParenthetical
2340 Implied Table Table

*

*

implied:Table
2341 Disclosure of defined benefit plans [abstract] Abstract ifrs-full:DisclosureOfDefinedBenefitPlansAbstract
2342 Defined benefit duration for which lower discount rates are used Concept (Text/String) For Period sny:DefinedBenefitPlansPeriodForWhichLowerDiscountRatesAreUsed
2343 Defined benefit duration for which higher discount rates are used Concept (Text/String) For Period sny:DefinedBenefitPlansPeriodForWhichHigherDiscountRatesAreUsed
2344 1199 - Disclosure - Provisions and Other Liabilities - Summary of Weighted Average Duration of Obligation for Pensions and Other Long-term Benefits in Principal Countries (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureProvisionsAndOtherLiabilitiesSummaryOfWeightedAverageDurationOfObligationForPensionsAndOtherLongtermBenefitsInPrincipalCountries
2345 Disclosure of defined benefit plans [table] Table

*

*

ifrs-full:DisclosureOfDefinedBenefitPlansTable
2346 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
2347 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
2348 France [member] Member country:FR
2349 Germany [member] Member country:DE
2350 US [member] Member country:US
2351 UK [member] Member country:GB
2352 Disclosure of defined benefit plans [line items] LineItems ifrs-full:DisclosureOfDefinedBenefitPlansLineItems
2353 Weighted average duration in main countries Concept (Decimal) For Period ifrs-full:WeightedAverageDurationOfDefinedBenefitObligation
2354 1200 - Disclosure - Provisions and Other Liabilities - Summary of Sensitivity for Pensions and Other Post-Employment Benefits to Changes in Key Actuarial Assumptions (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureProvisionsAndOtherLiabilitiesSummaryOfSensitivityForPensionsAndOtherPostEmploymentBenefitsToChangesInKeyActuarialAssumptions
2355 Disclosure of sensitivity analysis for actuarial assumptions [table] Table

*

*

ifrs-full:DisclosureOfSensitivityAnalysisForActuarialAssumptionsTable
2356 Defined benefit plans [axis] Axis ifrs-full:DefinedBenefitPlansAxis
2357 Defined benefit plans [member] Member ifrs-full:DefinedBenefitPlansMember
2358 France [member] Member country:FR
2359 Germany [member] Member country:DE
2360 US [member] Member country:US
2361 UK [member] Member country:GB
2362 Actuarial assumptions [axis] Axis ifrs-full:ActuarialAssumptionsAxis
2363 Actuarial assumptions [member] Member ifrs-full:ActuarialAssumptionsMember
2364 Discount rate [member] Member ifrs-full:ActuarialAssumptionOfDiscountRatesMember
2365 General inflation rate [member] Member ifrs-full:ActuarialAssumptionOfExpectedRatesOfInflationMember
2366 Pension benefits indexation [member] Member ifrs-full:ActuarialAssumptionOfExpectedRatesOfPensionIncreasesMember
2367 Healthcare cost inflation rate [member] Member ifrs-full:ActuarialAssumptionOfMedicalCostTrendRatesMember
2368 Mortality table [member] Member sny:ActuarialAssumptionForChangeInMortalityTableUsedMember
2369 Disclosure of sensitivity analysis for actuarial assumptions [line items] LineItems ifrs-full:DisclosureOfSensitivityAnalysisForActuarialAssumptionsLineItems
2370 Possible decrease in actuarial assumption Concept (Percent) As Of ifrs-full:PercentageOfReasonablyPossibleDecreaseInActuarialAssumption
2371 Possible increase in actuarial assumption Concept (Percent) As Of ifrs-full:PercentageOfReasonablyPossibleIncreaseInActuarialAssumption
2372 Possible increase in mortality table in years Concept (xbrli:durationItemType) For Period sny:PossibleIncreaseInMortalityTableInYears
2373 Measurement of defined-benefit obligation Concept (Monetary) As Of Credit ifrs-full:IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleIncreaseInActuarialAssumption
2374 1201 - Disclosure - Provisions and Other Liabilities - Net Amount Recognized in Respect of Pension and Other Post-employment Benefit Plans (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureProvisionsAndOtherLiabilitiesNetAmountRecognizedInRespectOfPensionAndOtherPostemploymentBenefitPlans
2375 Disclosure of net defined benefit liability (asset) [table] Table

*

*

ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetTable
2376 Defined benefit plans [axis] Axis ifrs-full:DefinedBenefitPlansAxis
2377 Defined benefit plans [member] Member ifrs-full:DefinedBenefitPlansMember
2378 Pensions and other post-employment benefits [member] Member sny:PensionsAndOtherPostemploymentBenefitsMember
2379 Net defined benefit liability (asset) [axis] Axis ifrs-full:NetDefinedBenefitLiabilityAssetAxis
2380 Net defined benefit liability (asset) [member] Member ifrs-full:NetDefinedBenefitLiabilityAssetMember
2381 Present value of defined benefit obligation [member] Member ifrs-full:PresentValueOfDefinedBenefitObligationMember
2382 Plan assets [member] Member ifrs-full:PlanAssetsMember
2383 Disclosure of net defined benefit liability (asset) [line items] LineItems ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetLineItems
2384 Beginning of period Concept (Monetary) As Of Credit ifrs-full:LiabilityAssetOfDefinedBenefitPlans
2385 Effect of asset ceiling Concept (Monetary) As Of Debit sny:EffectOfAssetCeiling
2386 Pre-funded obligations Concept (Monetary) As Of Debit sny:PrefundedPensionObligations
2387 Non-current provisions and other non-current liabilities Concept (Monetary) As Of Credit sny:NoncurrentProvisionsAndOtherNoncurrentLiabilities
2388 Current service cost Concept (Monetary) For Period Credit ifrs-full:CurrentServiceCostNetDefinedBenefitLiabilityAsset
2389 Past service cost Concept (Monetary) For Period Credit ifrs-full:PastServiceCostNetDefinedBenefitLiabilityAsset
2390 Interest cost Concept (Monetary) For Period Credit ifrs-full:InterestExpenseIncomeNetDefinedBenefitLiabilityAsset
2391 Actuarial losses/(gains) due to changes in demographic assumptions Concept (Monetary) For Period Debit ifrs-full:ActuarialGainsLossesArisingFromChangesInDemographicAssumptionsNetDefinedBenefitLiabilityAsset
2392 Difference between actual return and interest income on plan assets Concept (Monetary) For Period Credit sny:DifferenceBetweenActualReturnAndInterestIncomeOnPlanAssets
2393 (Gains)/losses on plan settlements not specified in the terms of the plan Concept (Monetary) For Period Debit ifrs-full:GainsLossesArisingFromSettlementsNetDefinedBenefitLiabilityAsset
2394 Actuarial losses/(gains) due to changes in financial assumptions Concept (Monetary) For Period Debit ifrs-full:ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsNetDefinedBenefitLiabilityAsset
2395 Administration costs and taxes paid during the period Concept (Monetary) For Period Debit sny:AdministrationCostsAndTaxesPaidDuringThePeriodNetDefinedBenefitAssets
2396 Actuarial (gains)/losses on plan curtailments Concept (Monetary) For Period Credit sny:ActuarialGainsLossesOnPlanCurtailmentsNetDefinedBenefit
2397 Actuarial losses/(gains) due to experience adjustments Concept (Monetary) For Period Debit ifrs-full:ActuarialGainsLossesArisingFromExperienceAdjustmentsNetDefinedBenefitLiabilityAsset
2398 Plan amendments Concept (Monetary) For Period Debit sny:PlanAmendments
2399 Plan curtailments Concept (Monetary) For Period Debit sny:PlanCurtailements
2400 Plan settlements specified in the terms of the plan Concept (Monetary) For Period Debit sny:PaymentsInRespectOfSettlementsSpecifiedInTheTermsOfThePlanNetDefinedBenefitLiabilityAsset
2401 Plan settlements not specified in the terms of the plan Concept (Monetary) For Period Debit sny:PaymentsInRespectOfSettlementsNotSpecifiedInTheTermsOfThePlanNetDefinedBenefitLiabilityAsset
2402 Benefits paid Concept (Monetary) For Period Debit ifrs-full:BenefitsPaidOrPayable
2403 Contributions from plan members Concept (Monetary) For Period Debit ifrs-full:ContributionsToPlanByPlanParticipantsNetDefinedBenefitLiabilityAsset
2404 Employer's contributions Concept (Monetary) For Period Debit ifrs-full:ContributionsToPlanByEmployerNetDefinedBenefitLiabilityAsset
2405 Expense recognized directly in profit or loss Concept (Monetary) For Period Debit sny:TotalExpenseForPensionsAndOtherPostemploymentBenefitsRecognizedDirectlyInProfitOrLoss
2406 Benefits paid Concept (Monetary) For Period Debit ifrs-full:PaymentsFromPlanNetDefinedBenefitLiabilityAsset
2407 Remeasurement of net defined-benefit (asset)/liability (actuarial gains and losses) Concept (Monetary) For Period Debit ifrs-full:GainLossOnRemeasurementOfNetDefinedBenefitLiabilityAsset
2408 Expense/(gain) for the period Concept (Monetary) For Period Debit sny:EmployeeBenefitsExpenseGain
2409 Changes in scope of consolidation and transfers Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughBusinessCombinationsAndDisposalsNetDefinedBenefitLiabilityAsset
2410 Currency translation differences Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughChangesInForeignExchangeRatesNetDefinedBenefitLiabilityAsset
2411 End of period Concept (Monetary) As Of Credit ifrs-full:LiabilityAssetOfDefinedBenefitPlans
2412 1202 - Disclosure - Provisions and Other Liabilities - Net Liability in Respect of Pension Plans and Other Post-employment Benefits by Geographical Region (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureProvisionsAndOtherLiabilitiesNetLiabilityInRespectOfPensionPlansAndOtherPostemploymentBenefitsByGeographicalRegion
2413 Disclosure of net defined benefit liability (asset) [table] Table

*

*

ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetTable
2414 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
2415 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
2416 France [member] Member country:FR
2417 Germany [member] Member country:DE
2418 US [member] Member country:US
2419 UK [member] Member country:GB
2420 Other countries [member] Member sny:OtherCountriesMember
2421 Defined benefit plans [axis] Axis ifrs-full:DefinedBenefitPlansAxis
2422 Defined benefit plans [member] Member ifrs-full:DefinedBenefitPlansMember
2423 Pensions and other post-employment benefits [member] Member sny:PensionsAndOtherPostemploymentBenefitsMember
2424 Disclosure of net defined benefit liability (asset) [line items] LineItems ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetLineItems
2425 Measurement of obligation Concept (Monetary) As Of Credit ifrs-full:DefinedBenefitObligationAtPresentValue
2426 Fair value of plan assets Concept (Monetary) As Of Debit ifrs-full:PlanAssetsAtFairValue
2427 Net amount shown in the balance sheet at end of period Concept (Monetary) As Of Credit ifrs-full:LiabilityAssetOfDefinedBenefitPlans
2428 1203 - Disclosure - Provisions and Other Liabilities - Fair Value of Plans Assets relating to Pension Plans and Other Post-employment Plans (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureProvisionsAndOtherLiabilitiesFairValueOfPlansAssetsRelatingToPensionPlansAndOtherPostemploymentPlans
2429 Disclosure of fair value of plan assets [table] Table

*

*

ifrs-full:DisclosureOfFairValueOfPlanAssetsTable
2430 Classes of assets [axis] Axis ifrs-full:ClassesOfAssetsAxis
2431 Assets [member] Member ifrs-full:ClassesOfAssetsMember
2432 Securities quoted in an active market [member] Member sny:SecuritiesQuotedInAnActiveMarketMember
2433 Cash and cash equivalents [member] Member sny:CashAndCashEquivalents1Member
2434 Equity instruments [member] Member sny:EquityInstrumentsMember
2435 Bonds and similar instruments [member] Member sny:BondsAndSimilarInstrumentsMember
2436 Real estate [member] Member sny:RealEstate1Member
2437 Derivatives [member] Member ifrs-full:DerivativesMember
2438 Commodities [member] Member sny:CommoditiesMember
2439 Other assets [member] Member ifrs-full:OtherAssetsMember
2440 Other securities [member] Member sny:OtherSecuritiesMember
2441 Hedge funds [member] Member sny:HedgeFunds1Member
2442 Insurance policies [member] Member sny:InsurancePoliciesMember
2443 Disclosure of fair value of plan assets [line items] LineItems ifrs-full:DisclosureOfFairValueOfPlanAssetsLineItems
2444 Percentage contributed to fair value of plan assets Concept (Percent) As Of sny:PercentageContributedToFairValueOfPlanAssets
2445 1204 - Disclosure - Provisions and Other Liabilities - Service Cost for Pension and Other post-employment Benefit Plans, by Geographical Region (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureProvisionsAndOtherLiabilitiesServiceCostForPensionAndOtherPostemploymentBenefitPlansByGeographicalRegion
2446 Disclosure of defined benefit plans [table] Table

*

*

ifrs-full:DisclosureOfDefinedBenefitPlansTable
2447 Defined benefit plans [axis] Axis ifrs-full:DefinedBenefitPlansAxis
2448 Defined benefit plans [member] Member ifrs-full:DefinedBenefitPlansMember
2449 Pensions and other post-employment benefits [member] Member sny:PensionsAndOtherPostemploymentBenefitsMember
2450 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
2451 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
2452 France [member] Member country:FR
2453 Germany [member] Member country:DE
2454 US [member] Member country:US
2455 UK [member] Member country:GB
2456 Other countries [member] Member sny:OtherCountriesMember
2457 Disclosure of defined benefit plans [line items] LineItems ifrs-full:DisclosureOfDefinedBenefitPlansLineItems
2458 Current service cost Concept (Monetary) For Period Credit ifrs-full:CurrentServiceCostNetDefinedBenefitLiabilityAsset
2459 Past service cost Concept (Monetary) For Period Credit ifrs-full:PastServiceCostNetDefinedBenefitLiabilityAsset
2460 Net interest cost/(income) including administration costs and taxes paid during the period Concept (Monetary) For Period Credit sny:InterestExpenseIncomeIncludingAdministrationCostsAndTaxesPaidNetDefinedBenefitLiabilityAsset
2461 (Gains)/losses on plan settlements not specified in the terms of the plan Concept (Monetary) For Period Debit ifrs-full:GainsLossesArisingFromSettlementsNetDefinedBenefitLiabilityAsset
2462 Actuarial (gains)/losses on plan curtailments Concept (Monetary) For Period Credit sny:ActuarialGainsLossesOnPlanCurtailmentsNetDefinedBenefit
2463 Contributions from plan members Concept (Monetary) For Period Debit ifrs-full:ContributionsToPlanByPlanParticipantsNetDefinedBenefitLiabilityAsset
2464 Expense recognized directly in profit or loss Concept (Monetary) For Period Debit sny:TotalExpenseForPensionAndOtherPostemplymentBenefitsRecognizedDirectlyInProfitOrLoss
2465 Remeasurement of net defined-benefit (asset)/ liability (actuarial gains and losses) Concept (Monetary) For Period Debit ifrs-full:GainLossOnRemeasurementOfNetDefinedBenefitLiabilityAsset
2466 Expense/(gain) for the period Concept (Monetary) For Period Debit sny:ExpenseGainForThePeriodNetDefinedBenefitLiabilityAsset
2467 1205 - Disclosure - Provisions and Other Liabilities - Remeasurement of Net Defined-benefit (Asset)/Liability (Actuarial Gains and Losses) (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureProvisionsAndOtherLiabilitiesRemeasurementOfNetDefinedbenefitAssetLiabilityActuarialGainsAndLosses
2468 Disclosure of defined benefit plans [table] Table

*

*

ifrs-full:DisclosureOfDefinedBenefitPlansTable
2469 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
2470 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
2471 France [member] Member country:FR
2472 Germany [member] Member country:DE
2473 US [member] Member country:US
2474 UK [member] Member country:GB
2475 Disclosure of defined benefit plans [line items] LineItems ifrs-full:DisclosureOfDefinedBenefitPlansLineItems
2476 Remeasurement of net defined-benefit (asset)/liability (actuarial gains and losses) Concept (Monetary) For Period Debit ifrs-full:GainLossOnRemeasurementOfNetDefinedBenefitLiabilityAsset
2477 Actuarial gains/(losses) on experience adjustments Concept (Monetary) For Period Debit sny:GainLossOnRemeasurementOfNetDefinedBenefitLiabilityAssetArisingFromExperienceAdjustments
2478 Actuarial losses/(gains) due to changes in demographic assumptions Concept (Monetary) For Period Debit ifrs-full:ActuarialGainsLossesArisingFromChangesInDemographicAssumptionsNetDefinedBenefitLiabilityAsset
2479 Actuarial gains/(losses) arising from financial assumptions Concept (Monetary) For Period Debit ifrs-full:ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsNetDefinedBenefitLiabilityAsset
2480 1206 - Disclosure - Provisions and Other Liabilities - Summary of Net Pre-tax Actuarial Loss (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureProvisionsAndOtherLiabilitiesSummaryOfNetPretaxActuarialLoss
2481 Implied Table Table

*

*

implied:Table
2482 Disclosure of tax rate reflected in adjusted earnings [Abstract] Abstract sny:DisclosureOfTaxRateReflectedInAdjustedEarningsAbstract
2483 Net pre-tax actuarial loss Concept (Monetary) For Period Credit sny:NetPretaxActuarialLossExcludingAssociatesAndJointVenturesRecognizedDirectlyInEquity
2484 1207 - Disclosure - Provisions and Other Liabilities - Summary of Present Value of Pension and Other Post Employement Benefits (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureProvisionsAndOtherLiabilitiesSummaryOfPresentValueOfPensionAndOtherPostEmployementBenefits
2485 Implied Table Table

*

*

implied:Table
2486 Disclosure of defined benefit plans [abstract] Abstract ifrs-full:DisclosureOfDefinedBenefitPlansAbstract
2487 Present value of wholly or partially funded obligations in respect of pension and other post-employment benefit plans Concept (Monetary) As Of Credit sny:PresentValueOfWhollyOrPartiallyFundedObligationsInRespectOfPensionAndOtherPostemploymentBenefitPlans
2488 Present value of unfunded obligations Concept (Monetary) As Of Credit sny:PresentValueOfUnfundedObligationsInRespectOfPensionAndOtherPostemploymentBenefitPlans
2489 Total Concept (Monetary) As Of Credit sny:PresentValueOfPensionAndOtherPostemploymentBenefitPlans
2490 1208 - Disclosure - Provisions and Other Liabilities - Total Expense for Pensions and Other Post-employment Benefits Allocated between Income Statement (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureProvisionsAndOtherLiabilitiesTotalExpenseForPensionsAndOtherPostemploymentBenefitsAllocatedBetweenIncomeStatement
2491 Disclosure of defined benefit plans [table] Table

*

*

ifrs-full:DisclosureOfDefinedBenefitPlansTable
2492 Defined benefit plans [axis] Axis ifrs-full:DefinedBenefitPlansAxis
2493 Defined benefit plans [member] Member ifrs-full:DefinedBenefitPlansMember
2494 Pensions and other post-employment benefits [member] Member sny:PensionsAndOtherPostemploymentBenefitsMember
2495 Disclosure of defined benefit plans [line items] LineItems ifrs-full:DisclosureOfDefinedBenefitPlansLineItems
2496 Cost of sales Concept (Monetary) For Period Debit ifrs-full:CostOfSales
2497 Research and development expenses Concept (Monetary) For Period Debit ifrs-full:ResearchAndDevelopmentExpense
2498 Selling and general expenses Concept (Monetary) For Period Debit ifrs-full:SellingGeneralAndAdministrativeExpense
2499 Other operating (income)/expenses, net Concept (Monetary) For Period Credit ifrs-full:OtherOperatingIncomeExpense
2500 Restructuring costs Concept (Monetary) For Period Debit sny:RestructuringCostsAndSimilarItems
2501 Financial expenses Concept (Monetary) For Period Debit ifrs-full:FinanceCosts
2502 Expense recognized directly in profit or loss Concept (Monetary) For Period Debit sny:TotalExpenseForPensionAndOtherPostemplymentBenefitsRecognizedDirectlyInProfitOrLoss
2503 1209 - Disclosure - Provisions and Other Liabilities - Estimated Amounts of Employer's Contributions to Plan Assets (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureProvisionsAndOtherLiabilitiesEstimatedAmountsOfEmployersContributionsToPlanAssets
2504 Disclosure of fair value of plan assets [table] Table

*

*

ifrs-full:DisclosureOfFairValueOfPlanAssetsTable
2505 Maturity [axis] Axis ifrs-full:MaturityAxis
2506 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
2507 Less than 1 year [member] Member ifrs-full:NotLaterThanOneYearMember
2508 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
2509 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
2510 UK [member] Member country:GB
2511 Other countries [member] Member sny:OtherCountriesMember
2512 Disclosure of fair value of plan assets [line items] LineItems ifrs-full:DisclosureOfFairValueOfPlanAssetsLineItems
2513 Estimate of contributions expected to be paid to plan for next annual reporting period Concept (Monetary) For Period Credit ifrs-full:EstimateOfContributionsExpectedToBePaidToPlan
2514 1210 - Disclosure - Provisions and Other Liabilities - Expected Timing of Benefit Payments under Pension and Other Post-employment Benefit Plans (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureProvisionsAndOtherLiabilitiesExpectedTimingOfBenefitPaymentsUnderPensionAndOtherPostemploymentBenefitPlans
2515 Disclosure of defined benefit plans [table] Table

*

*

ifrs-full:DisclosureOfDefinedBenefitPlansTable
2516 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
2517 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
2518 France [member] Member country:FR
2519 Germany [member] Member country:DE
2520 US [member] Member country:US
2521 UK [member] Member country:GB
2522 Other countries [member] Member sny:OtherCountriesMember
2523 Maturity [axis] Axis ifrs-full:MaturityAxis
2524 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
2525 Less than 1 year [member] Member ifrs-full:NotLaterThanOneYearMember
2526 Later than one year and not later than two years [member] Member ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember
2527 Later than two years and not later than three years [member] Member ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember
2528 Later than three years and not later than four years [member] Member ifrs-full:LaterThanThreeYearsAndNotLaterThanFourYearsMember
2529 Later than four years and not later than five years [member] Member ifrs-full:LaterThanFourYearsAndNotLaterThanFiveYearsMember
2530 More than 5 years [member] Member ifrs-full:LaterThanFiveYearsMember
2531 Disclosure of defined benefit plans [line items] LineItems ifrs-full:DisclosureOfDefinedBenefitPlansLineItems
2532 Estimated future benefit payments under pension and other post-employment benefit plans Concept (Monetary) As Of Debit sny:EstimatedFutureBenefitPaymentsUnderPensionAndOtherPostemploymentBenefitPlans
2533 1211 - Disclosure - Provisions and Other Liabilities - Timing of Future Payments in Respect of Unfunded Pension and Other Post-employment Benefit Plans (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureProvisionsAndOtherLiabilitiesTimingOfFuturePaymentsInRespectOfUnfundedPensionAndOtherPostemploymentBenefitPlans
2534 Disclosure of defined benefit plans [table] Table

*

*

ifrs-full:DisclosureOfDefinedBenefitPlansTable
2535 Maturity [axis] Axis ifrs-full:MaturityAxis
2536 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
2537 Less than 1 year [member] Member ifrs-full:NotLaterThanOneYearMember
2538 1 to 3 years [member] Member ifrs-full:LaterThanOneYearAndNotLaterThanThreeYearsMember
2539 3 to 5 years [member] Member ifrs-full:LaterThanThreeYearsAndNotLaterThanFiveYearsMember
2540 More than 5 years [member] Member ifrs-full:LaterThanFiveYearsMember
2541 Disclosure of defined benefit plans [line items] LineItems ifrs-full:DisclosureOfDefinedBenefitPlansLineItems
2542 Expected timing of payments in respect of unfunded pension and other post-employment benefit plans Concept (Monetary) For Period Debit sny:ExpectedTimingOfPaymentsInRespectOfUnfundedPensionAndOtherPostemploymentBenefitPlans
2543 1212 - Disclosure - Provisions and Other Liabilities - Movements in Restructuring Provisions Classified in Non-current and Current Liabilities (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureProvisionsAndOtherLiabilitiesMovementsInRestructuringProvisionsClassifiedInNoncurrentAndCurrentLiabilities
2544 Disclosure of Restructuring provisions [Table] Table

*

*

sny:DisclosureOfRestructuringProvisionsTable
2545 Classes of other provisions [axis] Axis ifrs-full:ClassesOfProvisionsAxis
2546 Other provisions [member] Member ifrs-full:OtherProvisionsMember
2547 Restructuring Provision [Member] Member ifrs-full:RestructuringProvisionMember
2548 Disclosure of Restructuring Provisions [line items] LineItems sny:DisclosureOfRestructuringProvisionsLineItems
2549 Balance, beginning of period Concept (Monetary) As Of Credit sny:NoncurrentProvisionsAndOtherNoncurrentLiabilities
2550 Classified in non-currentliabilities Concept (Monetary) As Of Credit ifrs-full:LongtermRestructuringProvision
2551 Classified in current liabilities Concept (Monetary) As Of Credit sny:CurrentProvisionsAndOtherCurrentLiabilities
2552 Change in provisions recognized in profit or loss for the period Concept (Monetary) For Period Credit sny:ChangeInProvisionsRecognizedInProfitOrLossForThePeriod
2553 Provisions utilized Concept (Monetary) For Period Debit ifrs-full:ProvisionUsedOtherProvisions
2554 Transfers Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughTransfersAndOtherChangesOtherProvisions
2555 Unwinding of discount Concept (Monetary) For Period Credit sny:UnwindingOfDiscount
2556 Currency translation differences Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesOtherProvisions
2557 Balance, end of period Concept (Monetary) As Of Credit sny:NoncurrentProvisionsAndOtherNoncurrentLiabilities
2558 Classified in non-currentliabilities Concept (Monetary) As Of Credit ifrs-full:LongtermRestructuringProvision
2559 Classified in current liabilities Concept (Monetary) As Of Credit sny:CurrentProvisionsAndOtherCurrentLiabilities
2560 1213 - Disclosure - Provisions and Other Liabilities - Timing of Future Termination Benefit Payments (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureProvisionsAndOtherLiabilitiesTimingOfFutureTerminationBenefitPayments
2561 Disclosure of defined benefit plans [table] Table

*

*

ifrs-full:DisclosureOfDefinedBenefitPlansTable
2562 Maturity [axis] Axis ifrs-full:MaturityAxis
2563 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
2564 Less than 1 year [member] Member ifrs-full:NotLaterThanOneYearMember
2565 1 to 3 years [member] Member ifrs-full:LaterThanOneYearAndNotLaterThanThreeYearsMember
2566 3 to 5 years [member] Member ifrs-full:LaterThanThreeYearsAndNotLaterThanFiveYearsMember
2567 More than 5 years [member] Member ifrs-full:LaterThanFiveYearsMember
2568 Defined benefit plans [axis] Axis ifrs-full:DefinedBenefitPlansAxis
2569 Defined benefit plans [member] Member ifrs-full:DefinedBenefitPlansMember
2570 France [member] Member country:FR
2571 Other countries [member] Member sny:OtherCountriesMember
2572 Disclosure of defined benefit plans [line items] LineItems ifrs-full:DisclosureOfDefinedBenefitPlansLineItems
2573 Defined benefit obligation, at present value Concept (Monetary) As Of Credit ifrs-full:DefinedBenefitObligationAtPresentValue
2574 1214 - Disclosure - Provisions and Other Liabilities - Summary of Other Provisions (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureProvisionsAndOtherLiabilitiesSummaryOfOtherProvisions
2575 Implied Table Table

*

*

implied:Table
2576 Major Restructuring Costs [Abstract] Abstract sny:MajorRestructuringCostsAbstract
2577 Disclosure of other provisions [abstract] Abstract ifrs-full:DisclosureOfOtherProvisionsAbstract
2578 Environment risks and remediation Concept (Monetary) As Of Credit sny:NoncurrentProvisionForEnvironmentRisksAndRemediation
2579 Product liability risks, litigation and other Concept (Monetary) As Of Credit sny:NoncurrentProvisionForProductLiabilityRisksLitigationAndOther
2580 Other provisions Concept (Monetary) As Of Credit ifrs-full:OtherLongtermProvisions
2581 1215 - Disclosure - Provision and Other Liabilities - Other Non-Current Liabilities (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureProvisionAndOtherLiabilitiesOtherNonCurrentLiabilities
2582 Implied Table Table

*

*

implied:Table
2583 Disclosure of other non-current liabilities [abstract] Abstract sny:DisclosureOfOtherNonCurrentLiabilitiesAbstract
2584 Non-current liabilities related to income taxes Concept (Monetary) As Of Credit ifrs-full:CurrentTaxLiabilitiesNoncurrent
2585 Other non-current liabilities Concept (Monetary) As Of Credit sny:OtherNoncurrentLiabilitiesExceptCurrentTaxLiabilitiesNoncurrent
2586 Total Concept (Monetary) As Of Credit ifrs-full:OtherNoncurrentLiabilities
2587 1216 - Disclosure - Provision and Other Liabilities - Other Non-Current Liabilities (Parenthetical) (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureProvisionAndOtherLiabilitiesOtherNonCurrentLiabilitiesParenthetical
2588 Disclosure Of Other Non Current Liabilities [Table] Table

*

*

sny:DisclosureOfOtherNonCurrentLiabilitiesTable
2589 Net defined benefit liability (asset) [axis] Axis ifrs-full:NetDefinedBenefitLiabilityAssetAxis
2590 Net defined benefit liability (asset) [member] Member ifrs-full:NetDefinedBenefitLiabilityAssetMember
2591 Uncertainties over income tax treatments [member] Member sny:UncertaintiesOverIncomeTaxTreatmentsMember
2592 Disclosure Of Other Non Current Liabilities [Line Items] LineItems sny:DisclosureOfOtherNonCurrentLiabilitiesLineItems
2593 Non-current liabilities related to income taxes Concept (Monetary) As Of Credit ifrs-full:CurrentTaxLiabilitiesNoncurrent
2594 1217 - Disclosure - Provisions and Other Liabilities - Current Provisions and Other Current Liabilities (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureProvisionsAndOtherLiabilitiesCurrentProvisionsAndOtherCurrentLiabilities
2595 Implied Table Table

*

*

implied:Table
2596 Current Provisions and Other Current Liabilities [abstract] Abstract sny:CurrentProvisionsAndOtherCurrentLiabilitiesAbstract
2597 Taxes payable Concept (Monetary) As Of Credit ifrs-full:CurrentTaxLiabilitiesCurrent
2598 Employee-related liabilities Concept (Monetary) As Of Credit ifrs-full:ShorttermEmployeeBenefitsAccruals
2599 Restructuring provisions (see Note D.19.2.) Concept (Monetary) As Of Credit ifrs-full:ShorttermRestructuringProvision
2600 Interest rate derivatives (see Note D.20.) Concept (Monetary) As Of Credit sny:CurrentInterestRateDerivativesPayable
2601 Currency derivatives (see Note D.20.) Concept (Monetary) As Of Credit sny:CurrentCurrencyDerivativesPayable
2602 Amounts payable for acquisitions of non-current assets Concept (Monetary) As Of Credit sny:AmountsPayableForAcquisitionOfNonCurrentAssets
2603 Other current liabilities Concept (Monetary) As Of Credit ifrs-full:OtherCurrentLiabilities
2604 Total Concept (Monetary) As Of Credit sny:CurrentProvisionsAndOtherCurrentLiabilities
2605 1218 - Disclosure - Derivative Financial Instruments and Market Risks - Summary of Fair Value of Derivative Instruments (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureDerivativeFinancialInstrumentsAndMarketRisksSummaryOfFairValueOfDerivativeInstruments
2606 Disclosure of Credit Risk Exposure [Table] Table

*

*

ifrs-full:DisclosureOfCreditRiskExposureTable
2607 Hedging instruments [axis] Axis ifrs-full:HedgingInstrumentsAxis
2608 Hedging instruments [member] Member ifrs-full:HedgingInstrumentsMember
2609 Currency derivatives [member] Member sny:CurrencyDerivativesMember
2610 Currency derivatives, operating [member] Member sny:CurrencyDerivativesOperatingMember
2611 Currency derivatives, financial [member] Member sny:CurrencyDerivativesFinancialMember
2612 Interest rate derivatives [member] Member sny:InterestRateDerivativesMember
2613 Disclosure of Credit Risk Exposure [Line Items] LineItems ifrs-full:DisclosureOfCreditRiskExposureLineItems
2614 Non-current derivative financial assets Concept (Monetary) As Of Debit ifrs-full:NoncurrentDerivativeFinancialAssets
2615 Current derivative financial assets Concept (Monetary) As Of Debit ifrs-full:CurrentDerivativeFinancialAssets
2616 Derivative financial assets Concept (Monetary) As Of Debit ifrs-full:DerivativeFinancialAssets
2617 Non-current derivative financial liabilities Concept (Monetary) As Of Credit ifrs-full:NoncurrentDerivativeFinancialLiabilities
2618 Current derivative financial liabilities Concept (Monetary) As Of Credit ifrs-full:CurrentDerivativeFinancialLiabilities
2619 Derivative financial liabilities Concept (Monetary) As Of Credit ifrs-full:DerivativeFinancialLiabilities
2620 Financial instruments designated as hedging instruments, at fair value Concept (Monetary) As Of ifrs-full:FinancialInstrumentsDesignatedAsHedgingInstrumentsAtFairValue
2621 1219 - Disclosure - Derivative Financial Instruments and Market Risks - Additional Information (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureDerivativeFinancialInstrumentsAndMarketRisksAdditionalInformation
2622 Implied Table Table

*

*

implied:Table
2623 Disclosure of risk management strategy related to hedge accounting [abstract] Abstract ifrs-full:DisclosureOfRiskManagementStrategyRelatedToHedgeAccountingAbstract
2624 Material embedded derivatives Concept (Monetary) As Of Credit sny:MaterialEmbeddedDerivatives
2625 Maximum percentage of notional amount of entity's counterparty for overall currency and interest rate positions Concept (Percent) For Period sny:MaximumPercentageOfNotionalAmountOfEntitysOverallCurrencyAndInterestRatePositions
2626 1220 - Disclosure - Derivative Financial Instruments and Market Risks - Summary of Operating Currency Hedging Instruments (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureDerivativeFinancialInstrumentsAndMarketRisksSummaryOfOperatingCurrencyHedgingInstruments
2627 Disclosure of Information about Credit Exposures Designated as Measured at Fair Value Through Profit or Loss [Table] Table

*

*

ifrs-full:DisclosureOfInformationAboutCreditExposuresDesignatedAsMeasuredAtFairValueThroughProfitOrLossTable
2628 Measurement [axis] Axis ifrs-full:MeasurementAxis
2629 Aggregated measurement [member] Member ifrs-full:AggregatedMeasurementMember
2630 Notional amount [member] Member sny:AtNotionalAmountMember
2631 Fair value [member] Member ifrs-full:AtFairValueMember
2632 Types of Hedges [Axis] Axis ifrs-full:TypesOfHedgesAxis
2633 Hedges [member] Member ifrs-full:TypesOfHedgesMember
2634 Not eligible for hedge accounting [member] Member sny:NotEligibleForHedgeAccountingMember
2635 Hedging instruments [axis] Axis ifrs-full:HedgingInstrumentsAxis
2636 Hedging instruments [member] Member ifrs-full:HedgingInstrumentsMember
2637 Forward currency sales [member] Member sny:ForwardCurrencySalesMember
2638 Forward currency sales in USD [member] Member sny:ForwardCurrencySalesInUSDMember
2639 Forward currency sales in Singapore Dollar [member] Member sny:ForwardCurrencySalesInSingaporeDollarMember
2640 Forward currency sales in Chinese Yuan Renminbi [member] Member sny:ForwardCurrencySalesInChineseYuanRenminbiMember
2641 Forward currency sales in Japanese Yen [member] Member sny:ForwardCurrencySalesYenMember
2642 Forward currency sales in Saudi Riyal [member] Member sny:ForwardCurrencySalesInSaudiRiyalMember
2643 Forward currency purchases [member] Member sny:ForwardCurrencyPurchasesMember
2644 Forward Currency Purchased In Japanese yen [member] Member sny:ForwardCurrencyPurchasedInJapaneseYenMember
2645 Forward currency purchases in Singapore Dollar [member] Member sny:ForwardCurrencyPurchasedInSingaporeDollarMember
2646 Forward currency purchases in USD [member] Member sny:ForwardCurrencyPurchasedInUsdMember
2647 Forward currency purchases in Chinese Yuan Renminbi [member] Member sny:ForwardCurrencyPurchasedInChineseYuanRenminbiMember
2648 Forward currency purchases in Hungarian Forint [member] Member sny:ForwardCurrencyPurchasedInHungarianFlorintMember
2649 Forward Currency Sales In Swiss Franc [member] Member sny:ForwardCurrencySalesInSwissFrancMember
2650 Forward currency purchases in Swiss Franc [member] Member sny:ForwardCurrencyPurchasedInSwissFrancMember
2651 Forward Currency Sales In Russian Rouble [member] Member sny:ForwardCurrencySalesInRussianRoubleMember
2652 Forward Currency Purchased In Canadian Dollar [member] Member sny:ForwardCurrencyPurchasedInCanadianDollarMember
2653 Disclosure of Information about Credit Exposures Designated as Measured at Fair Value Through Profit or Loss [Line Items] LineItems ifrs-full:DisclosureOfInformationAboutCreditExposuresDesignatedAsMeasuredAtFairValueThroughProfitOrLossLineItems
2654 Derivative financial instruments Concept (Monetary) As Of Debit sny:DerivativeFinancialInstruments
2655 1221 - Disclosure - Derivative Financial Instruments and Market Risks - Disclosure of Financial Currency Hedging Instruments in Place with Notional Amount Translated (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureDerivativeFinancialInstrumentsAndMarketRisksDisclosureOfFinancialCurrencyHedgingInstrumentsInPlaceWithNotionalAmountTranslated
2656 Disclosure of Information about Terms and Conditions of Hedging Instruments and How They Affect Future Cash Flows [Table] Table

*

*

ifrs-full:DisclosureOfInformationAboutTermsAndConditionsOfHedgingInstrumentsAndHowTheyAffectFutureCashFlowsTable
2657 Measurement [axis] Axis ifrs-full:MeasurementAxis
2658 Aggregated measurement [member] Member ifrs-full:AggregatedMeasurementMember
2659 Notional amount [member] Member sny:AtNotionalAmountMember
2660 Fair value [member] Member ifrs-full:AtFairValueMember
2661 Hedging instruments [axis] Axis ifrs-full:HedgingInstrumentsAxis
2662 Hedging instruments [member] Member ifrs-full:HedgingInstrumentsMember
2663 Forward currency sales [member] Member sny:ForwardCurrencySalesMember
2664 Forward currency sales in USD [member] Member sny:ForwardCurrencySalesInUSDMember
2665 Forward currency sales in Japanese Yen [member] Member sny:ForwardCurrencySalesYenMember
2666 Forward Currency Sales In Australian Dollar [member] Member sny:ForwardCurrencySalesInAustralianDollarMember
2667 Forward currency purchases [member] Member sny:ForwardCurrencyPurchasesMember
2668 Forward currency purchases in USD [member] Member sny:ForwardCurrencyPurchasedInUsdMember
2669 Forward currency purchases in Singapore Dollar [member] Member sny:ForwardCurrencyPurchasedInSingaporeDollarMember
2670 Forward currency purchases in Chinese Yuan Renminbi [member] Member sny:ForwardCurrencyPurchasedInChineseYuanRenminbiMember
2671 Maturity [axis] Axis ifrs-full:MaturityAxis
2672 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
2673 Less than 1 year [member] Member ifrs-full:NotLaterThanOneYearMember
2674 Disclosure of Information about Terms and Conditions of Hedging Instruments and How They Affect Future Cash Flows [Line Items] LineItems ifrs-full:DisclosureOfInformationAboutTermsAndConditionsOfHedgingInstrumentsAndHowTheyAffectFutureCashFlowsLineItems
2675 Derivative financial instruments to manage financial exposure Concept (Monetary) As Of Credit sny:DerivativeFinancialInstrumentsToManageFinancialExposure
2676 1222 - Disclosure - Derivative Financial Instruments and Market Risks - Disclosure of Financial Currency Hedging Instruments in Place with Notional Amount Translated (Parenthetical) (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureDerivativeFinancialInstrumentsAndMarketRisksDisclosureOfFinancialCurrencyHedgingInstrumentsInPlaceWithNotionalAmountTranslatedParenthetical
2677 Disclosure of Information about Terms and Conditions of Hedging Instruments and How They Affect Future Cash Flows [Table] Table

*

*

ifrs-full:DisclosureOfInformationAboutTermsAndConditionsOfHedgingInstrumentsAndHowTheyAffectFutureCashFlowsTable
2678 Hedging instruments [axis] Axis ifrs-full:HedgingInstrumentsAxis
2679 Hedging instruments [member] Member ifrs-full:HedgingInstrumentsMember
2680 Forward currency sales in USD [member] Member sny:ForwardCurrencySalesInUSDMember
2681 Disclosure of Information about Terms and Conditions of Hedging Instruments and How They Affect Future Cash Flows [Line Items] LineItems ifrs-full:DisclosureOfInformationAboutTermsAndConditionsOfHedgingInstrumentsAndHowTheyAffectFutureCashFlowsLineItems
2682 Notional amount Concept (Monetary) As Of ifrs-full:NotionalAmount
2683 Maturity date Concept (Text/String) For Period ifrs-full:BorrowingsMaturity
2684 Fair value of forward contracts Concept (Monetary) As Of Debit sny:CommodityForwardContractsDerivativeAssetsAtFairValue
2685 1223 - Disclosure - Derivative Financial Instruments and Market Risks - Disclosure of Instruments (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureDerivativeFinancialInstrumentsAndMarketRisksDisclosureOfInstruments
2686 Disclosure of Detailed Information About Financial Instruments [Table] Table

*

*

ifrs-full:DisclosureOfFinancialInstrumentsTable
2687 Hedging instruments [axis] Axis ifrs-full:HedgingInstrumentsAxis
2688 Hedging instruments [member] Member ifrs-full:HedgingInstrumentsMember
2689 Interest rate swaps pay capitalized Eonia / receive 1.58 percent [Member] Member sny:InterestRateSwapsPayCapitalizedEoniaReceive1.58PercentMember
2690 Interest rate swaps pay capitalized Eonia / receive 0.06% [member] Member sny:InterestRateSwapsPayCapitalizedEoniaReceive0.06PercentMember
2691 Interest rate swaps pay 3-month US dollar Libor / receive 2.22 % [Member] Member sny:InterestRateSwapsPay3monthLiborReceive2.22PercentMember
2692 Interest rate swaps receive capitalized Eonia / pay 1.48 Percent [Member] Member sny:InterestRateSwapsReceiveCapitalizedEoniaPay1.48PercentMember
2693 Interest rate swaps pay 1.81% / receive 3-month US dollar Libor [Member] Member sny:InterestRateSwapsPay1.81PercentReceive3monthUsDollarLiborMember
2694 Interest rate swaps pay capitalized Eonia / receive -0.01% [Member] Member sny:InterestRateSwapsPayCapitalizedEoniaReceive0.01PercentMember
2695 Interest rate swaps pay 1.22% / receive 3-month & 6-month US dollar Libor [Member] Member sny:InterestRateSwapsPay1.22PercentReceive3MonthAnd6MonthUSDollarLiborMember
2696 Interest rate swaps pay 3-month Euribor / receive 1.15% [member] Member sny:InterestRateSwapsPay3MonthEuriborReceive1.15PercentMember
2697 Measurement [axis] Axis ifrs-full:MeasurementAxis
2698 Aggregated measurement [member] Member ifrs-full:AggregatedMeasurementMember
2699 Notional amount [member] Member sny:AtNotionalAmountMember
2700 Fair value [member] Member ifrs-full:AtFairValueMember
2701 Maturity [axis] Axis ifrs-full:MaturityAxis
2702 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
2703 Less than 1 year [member] Member ifrs-full:NotLaterThanOneYearMember
2704 Later than two years and not later than three years [member] Member ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember
2705 Later than three years and not later than four years [member] Member ifrs-full:LaterThanThreeYearsAndNotLaterThanFourYearsMember
2706 Later than four years and not later than five years [member] Member ifrs-full:LaterThanFourYearsAndNotLaterThanFiveYearsMember
2707 More than 5 years [member] Member ifrs-full:LaterThanFiveYearsMember
2708 More than 6 years [member] Member ifrs-full:LaterThanFiveYearsAndNotLaterThanSevenYearsMember
2709 Types of Hedges [Axis] Axis ifrs-full:TypesOfHedgesAxis
2710 Hedges [member] Member ifrs-full:TypesOfHedgesMember
2711 Derivatives Designated as Fair Value Hedges [Member] Member ifrs-full:FairValueHedgesMember
2712 Derivatives Designated as Cash Flow Hedges [Member] Member ifrs-full:CashFlowHedgesMember
2713 Disclosure of Detailed Information About Financial Instruments [Line Items] LineItems ifrs-full:DisclosureOfFinancialInstrumentsLineItems
2714 Currency and interest rate derivatives used to manage debt, net of cash and cash equivalents Concept (Monetary) As Of sny:CurrencyAndInterestRateDerivativesUsedToManageDebtNetOfCashAndCashEquivalents
2715 1224 - Disclosure - Derivative Financial Instruments and Market Risks - Disclosure of Actual or Potential Effects of Netting Arrangements (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureDerivativeFinancialInstrumentsAndMarketRisksDisclosureOfActualOrPotentialEffectsOfNettingArrangements
2716 Disclosure Of Off Setting Of Financial Assets And Liabilities [table] Table

*

*

sny:DisclosureOfOffSettingOfFinancialAssetsAndLiabilitiesTable
2717 Classes of Financial Instruments [Axis] Axis ifrs-full:ClassesOfFinancialInstrumentsAxis
2718 Financial instruments, class [member] Member ifrs-full:ClassesOfFinancialInstrumentsMember
2719 Derivative Financial Liabilities [Member] Member sny:DerivativeFinancialLiabilitiesMember
2720 Derivative Financial Assets [Member] Member sny:DerivativeFinancialAssetsMember
2721 Derivative Instrument [Axis] Axis sny:DerivativeInstrumentAxis
2722 Derivative Instrument [Domain] Member sny:DerivativeInstrumentDomain
2723 Effects of other netting arrangements not fulfilling the IAS 32 criteria for offsetting [member] Member sny:EffectsOfOtherNettingArrangementsNotFulfillingTheIAS32CriteriaForOffsettingMember
2724 Disclosure of Offsetting of Financial Assets and Liabilities [line items] LineItems sny:DisclosureOfOffSettingOfFinancialAssetsAndLiabilitiesLineItems
2725 Gross carrying amounts before offset Concept (Monetary) As Of Debit sny:DerivativeFinancialAssetsAndLiabilitiesGrossCarryingAmountsBeforeOffset
2726 Gross amounts offset (in accordance with IAS 32) Concept (Monetary) As Of Debit sny:DerivativeFinancialAssetsAndLiabilitiesGrossAmountsOffsetInAccordanceWithIAS32
2727 Net amounts as reported in the balance sheet Concept (Monetary) As Of Debit sny:NetAmountsAsReportedInTheBalanceSheet
2728 Financial instruments Concept (Monetary) As Of Credit sny:EffectsOfOtherNettingArrangementsNotFulfillingTheIAS32CriteriaForOffsettingFinancialInstruments
2729 Fair value of financial collateral Concept (Monetary) As Of Debit sny:EffectsOfOtherNettingArrangementsNotFulfillingTheIAS32CriteriaForOffsettingFairValueOfFinancialCollateral
2730 Net exposure Concept (Monetary) As Of sny:NetExposure
2731 1225 - Disclosure - Off-Balance Sheet Commitments - Summary of Off Balance Sheet Commitments Relating to Operating Activities (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureOffBalanceSheetCommitmentsSummaryOfOffBalanceSheetCommitmentsRelatingToOperatingActivities
2732 Disclosure of finance lease and operating lease by lessee [table] Table

*

*

ifrs-full:DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeTable
2733 Maturity [axis] Axis ifrs-full:MaturityAxis
2734 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
2735 Less than 1 year [member] Member ifrs-full:NotLaterThanOneYearMember
2736 1 to 3 years [member] Member ifrs-full:LaterThanOneYearAndNotLaterThanThreeYearsMember
2737 3 to 5 years [member] Member ifrs-full:LaterThanThreeYearsAndNotLaterThanFiveYearsMember
2738 More than 5 years [member] Member ifrs-full:LaterThanFiveYearsMember
2739 Disclosure of finance lease and operating lease by lessee [line items] LineItems ifrs-full:DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeLineItems
2740 Operating leases Concept (Monetary) For Period Debit ifrs-full:MinimumOperatingLeasePayments
2741 Irrevocable purchase commitments given Concept (Monetary) As Of Credit sny:IrrevocablePurchaseCommitmentsGiven
2742 Irrevocable purchase commitments received Concept (Monetary) As Of Debit sny:IrrevocablePurchaseCommitmentsReceived
2743 Research and development license agreements - commitments related to R&D and other commitments Concept (Monetary) As Of Debit sny:CommitmentsRelatedToResearchAndDevelopmentLicenceAgreementsAndOtherCommitments
2744 Research and development license agreements - potential milestone payments Concept (Monetary) As Of Debit sny:CommitmentsRelatedToResearchAndDevelopmentLicenceAgreementsPotentialMilestonePayments
2745 Total Concept (Monetary) As Of Debit sny:TotalOffBalanceSheetCommitments
2746 1226 - Disclosure - Off-Balance Sheet Commitments - Summary of Off Balance Sheet Commitments Relating to Operating Activities (Parenthetical) (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureOffBalanceSheetCommitmentsSummaryOfOffBalanceSheetCommitmentsRelatingToOperatingActivitiesParenthetical
2747 Disclosure of finance lease and operating lease by lessee [table] Table

*

*

ifrs-full:DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeTable
2748 Categories of Related Parties [Axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
2749 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
2750 Suppliers [Member] Member sny:SuppliersMember
2751 Joint ventures [axis] Axis ifrs-full:JointVenturesAxis
2752 Entity's total for joint ventures [member] Member ifrs-full:EntitysTotalForJointVenturesMember
2753 Joint ventures [member] Member ifrs-full:JointVenturesMember
2754 Disclosure of finance lease and operating lease by lessee [line items] LineItems ifrs-full:DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeLineItems
2755 Operating leases Concept (Monetary) For Period Debit ifrs-full:MinimumOperatingLeasePayments
2756 Irrevocable purchase commitments given Concept (Monetary) As Of Credit sny:IrrevocablePurchaseCommitmentsGiven
2757 Irrevocable purchase commitments received Concept (Monetary) As Of Debit sny:IrrevocablePurchaseCommitmentsReceived
2758 Research and development license agrrements - commitments related to R and D and other commitments Concept (Monetary) As Of Debit sny:CommitmentsRelatedToResearchAndDevelopmentLicenceAgreementsAndOtherCommitments
2759 Research and development license agrrements - potential milestone payments Concept (Monetary) As Of Debit sny:CommitmentsRelatedToResearchAndDevelopmentLicenceAgreementsPotentialMilestonePayments
2760 1227 - Disclosure - Off Balance Sheet Commitments - Summary of Future Minimum Lease Payments Due Under Non-cancelable Leases and Rental Expense (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureOffBalanceSheetCommitmentsSummaryOfFutureMinimumLeasePaymentsDueUnderNoncancelableLeasesAndRentalExpense
2761 Implied Table Table

*

*

implied:Table
2762 Disclosure of finance lease and operating lease by lessee [abstract] Abstract ifrs-full:DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeAbstract
2763 Commitments under operating leases Concept (Monetary) For Period Debit ifrs-full:MinimumOperatingLeasePayments
2764 Rental expense Concept (Monetary) For Period Debit ifrs-full:LeaseAndSubleasePaymentsRecognisedAsExpense
2765 1228 - Disclosure - Off-Balance Sheet Commitments - Additional Information (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureOffBalanceSheetCommitmentsAdditionalInformation
2766 Disclosure of finance lease and operating lease by lessee [table] Table

*

*

ifrs-full:DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeTable
2767 Counterparties [axis] Axis ifrs-full:CounterpartiesAxis
2768 Counterparties [member] Member ifrs-full:CounterpartiesMember
2769 Hanmi Pharmaceutical Co Limited [Member] Member sny:HanmiPharmaceuticalCoLimitedMember
2770 Dice Molecules [Member] Member sny:DiceMoleculesMember
2771 Lonza [member] Member sny:LonzaMember
2772 Celgene Corporation [member] Member sny:CelgeneCorporationMember
2773 Joint ventures [axis] Axis ifrs-full:JointVenturesAxis
2774 Entity's total for joint ventures [member] Member ifrs-full:EntitysTotalForJointVenturesMember
2775 Joint ventures [member] Member ifrs-full:JointVenturesMember
2776 Non-adjusting events after reporting period [axis] Axis ifrs-full:NonadjustingEventsAfterReportingPeriodAxis
2777 Non-adjusting events after reporting period [member] Member ifrs-full:NonadjustingEventsMember
2778 Major business combination [member] Member ifrs-full:MajorBusinessCombinationMember
2779 Business Combinations [Axis] Axis ifrs-full:BusinessCombinationsAxis
2780 Entity's total for business combinations [member] Member ifrs-full:EntitysTotalForBusinessCombinationsMember
2781 Impact Biomedicines [member] Member sny:ImpactBiomedicinesMember
2782 Categories of Related Parties [Axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
2783 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
2784 Translate Bio [member] Member sny:TranslateBioMember
2785 World Health Organization [member] Member sny:WorldHealthOrganizationMember
2786 Segments [axis] Axis ifrs-full:SegmentsAxis
2787 Segments [member] Member ifrs-full:SegmentsMember
2788 Vaccines [member] Member sny:VaccinesMember
2789 Disclosure of collaboration agreements [line Items] LineItems sny:DisclosureOfCollaborationAgreementsLineItems
2790 Commitments related to r and d relating to projects in research phase Concept (Monetary) As Of Credit sny:CommitmentsRelatedToResearchAndDevelopmentRelatingToProjectsInResearchPhase
2791 Commitments related to r and d payments contingent upon attainment of sales targets Concept (Monetary) As Of Credit sny:CommitmentsRelatedToResearchAndDevelopmentPaymentsContingentUponAttainmentOfSalesTargets
2792 Consideration transferred, acquisition-date fair value Concept (Monetary) As Of Credit ifrs-full:AcquisitiondateFairValueOfTotalConsiderationTransferred
2793 Upfront payment Concept (Monetary) For Period Debit sny:UpfrontPayments
2794 Variable consideration contingent Concept (Monetary) As Of Debit ifrs-full:ContingentConsiderationArrangementsAndIndemnificationAssetsRecognisedAsOfAcquisitionDate
2795 Equity interest Concept (Percent) As Of ifrs-full:PercentageOfVotingEquityInterestsAcquired
2796 Royalty payment received by Sanofi Concept (Monetary) For Period Credit sny:RoyaltyPaymentsReceived
2797 Royalty future variable payments entitled to be received by Sanofi Concept (Monetary) For Period Debit sny:FutureVariablePayment
2798 Transaction value Concept (Monetary) For Period Debit sny:TransactionAmount
2799 Amounts received from partners in collaboration agreements Concept (Monetary) For Period Debit sny:AmountsReceivedFromPartnersInCollaborationAgreements
2800 Amounts receivable from partners in collaboration agreements Concept (Monetary) As Of Debit sny:AmountsReceivableFromPartnersInCollaborationAgreements
2801 Collaboration period Concept (xbrli:durationItemType) For Period sny:CollaborationAgreementPeriod
2802 Initial investment in joint venture Concept (Monetary) As Of Debit ifrs-full:InvestmentsInJointVentures
2803 Percentage shared by partners in construction of facility financing Concept (Percent) For Period sny:PercentageSharedByPartnersInConstructionOfFacilityFinancing
2804 Amounts payable partners in collaboration agreements Concept (Monetary) As Of Credit sny:AmountsPayablePartnersInCollaborationAgreements
2805 Share of operating expenses and cost of producion to joint partner payable period Concept (xbrli:durationItemType) For Period sny:ShareOfOperatingExpensesAndCostOfProducionToJointPartnerPayablePeriod
2806 Percentage of pandemic vaccines agreed to transfer Concept (Percent) As Of sny:TransferPercentageOfPandemicVaccines
2807 Percentage of pandemic vaccines agreed to reserve Concept (Percent) As Of sny:ReservePercentageOfPandemicVaccines
2808 Total credit facilities Concept (Monetary) As Of Credit ifrs-full:UndrawnBorrowingFacilities
2809 1229 - Disclosure - Off-Balance Sheet Commitments - Summary of Undrawn Credit Facilities (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureOffBalanceSheetCommitmentsSummaryOfUndrawnCreditFacilities
2810 Disclosure Of Line of Credit Facility [Table] Table

*

*

sny:DisclosureOfLineOfCreditFacilityTable
2811 Maturity [axis] Axis ifrs-full:MaturityAxis
2812 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
2813 1 to 3 years [member] Member ifrs-full:LaterThanOneYearAndNotLaterThanThreeYearsMember
2814 Disclosure Of Line of Credit Facility [Line Items] LineItems sny:DisclosureOfLineOfCreditFacilityLineItems
2815 General-purpose credit facilities Concept (Monetary) As Of Credit ifrs-full:UndrawnBorrowingFacilities
2816 1230 - Disclosure - Off-Balance Sheet Commitments - Summary of Amount of Guarantees Given and Received (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureOffBalanceSheetCommitmentsSummaryOfAmountOfGuaranteesGivenAndReceived
2817 Disclosure Of Guarantees [Table] Table

*

*

sny:DisclosureOfGuaranteesTable
2818 Classes of Contingent Liabilities [Axis] Axis ifrs-full:ClassesOfContingentLiabilitiesAxis
2819 Contingent liabilities [member] Member ifrs-full:ContingentLiabilitiesMember
2820 Guarantees given [member] Member sny:GuaranteesGivenMember
2821 Guarantees provided to banks in connection with credit facilities [member] Member sny:GuaranteesProvidedToBanksInConnectionWithCreditFacilitiesMember
2822 Other guarantees given [member] Member sny:OtherGuaranteesGivenMember
2823 Guarantees received [member] Member sny:GuaranteesReceivedMember
2824 Disclosure of Guarantees [Line Items] LineItems sny:DisclosureOfGuaranteesLineItems
2825 Estimated financial effect of contingent liabilities Concept (Monetary) As Of ifrs-full:EstimatedFinancialEffectOfContingentLiabilities
2826 1231 - Disclosure - Legal and Arbitral Proceedings - Additional Information (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureLegalAndArbitralProceedingsAdditionalInformation
2827 Disclosure of Legal and Arbitral Proceedings [Table] Table

*

*

sny:DisclosureOfLegalAndArbitralProceedingsTable
2828 Legal and arbitral proceedings [axis] Axis sny:LegalAndArbitralProceedingsAxis
2829 Legal and arbitral proceedings [member] Member sny:LegalAndArbitralProceedingsMember
2830 Praluent (Alirocumab) Related Amgen Patent Litigation in Europe [Member] Member sny:PraluentAlirocumabRelatedAmgenPatentLitigationInEuropeMember
2831 Praluent (alirocumab)-related EPO patent oppositions [member] Member sny:PraluentAlirocumabRelatedEpoPatentOppositionsMember
2832 Plavix Litigation (Commonwealth) in Australia [Member] Member sny:PlavixLitigationCommonwealthInAustraliaMember
2833 Aventis Behring Retained Liabilities [member] Member sny:AventisBehringRetainedLiabilitiesMember
2834 Aventis Crop Science Retained Liabilities [member] Member sny:AventisCropScienceRetainedLiabilitiesMember
2835 Aventis Animal Nutrition Retained Liabilities [member] Member sny:AventisAnimalNutritionRetainedLiabilitiesMember
2836 Rhodia shareholder litigation [member] Member sny:RhodiaShareholderLitigationMember
2837 Clariant Retained Liabilities - Specially Chemicals Business [member] Member sny:ClariantRetainedLiabilitiesSpeciallyChemicalsBusinessMember
2838 Sanofi Pasteur Hepatitis B Vaccine Product Litigation Since 1996 [member] Member sny:SanofiPasteurHepatitisVaccineProductLitigationSince1996Member
2839 Ramipril Canada Patent Litigation [Member] Member sny:RamiprilCanadaPatentLitigationMember
2840 Praluent (alirocumab)-related amgen patent litigation in the U.S.[Member] Member sny:PraluentAlirocumabRelatedAmgenPatentLitigationInTheUSMember
2841 Celanese A G retained liabilities [member] Member sny:CelaneseAgRetainedLiabilitiesMember
2842 Infraserv Hoechst Retained Liabilities [member] Member sny:InfraservHoechstRetainedLiabilitiesMember
2843 Plavix product litigation in the US [Member] Member sny:PlavixProductLitigationInTheUSMember
2844 Taxotere mississippi attorney general litigation in the US [member] Member sny:TaxotereMississippiAttorneyGeneralLitigationInTheUSMember
2845 Taxotere product litigation in the US [member] Member sny:TaxotereProductLitigationInTheUsMember
2846 Depakine Product Litigation In France As Of December 31, 2018 [member] Member sny:DepakineProductLitigationInFranceAsOfDecember312018Member
2847 Other Litigation [member] Member sny:OtherLitigationMember
2848 Dupixent Related Amgen Iprs and Patent Litigation In The Us [member] Member sny:DupixentRelatedAmgenIPRSAndPatentLitigationInTheUsMember
2849 Dupixent Related Amgen Patent Opposition and Revocation in Europe [member] Member sny:DupixentRelatedAmgenPatentOppositionAndRevocationInEuropeMember
2850 Praluent Related Amgen Ppposition and Patent Litigation in Japan [member] Member sny:PraluentRelatedAmgenOppositionAndPatentLitigationInJapanMember
2851 Defendant [Axis] Axis sny:DefendantAxis
2852 Defendants [Member] Member sny:DefendantsMember
2853 Action For Which We Are Defendant [member] Member sny:ActionForWhichWeAreDefendantMember
2854 Action For Which We Are a Plaintiff [member] Member sny:ActionForWhichWeArePlaintiffMember
2855 Counterparties [axis] Axis ifrs-full:CounterpartiesAxis
2856 Counterparties [member] Member ifrs-full:CounterpartiesMember
2857 Plaintiff [member] Member sny:PlaintiffMember
2858 Caisse Primaire D Assurance Maladie [member] Member sny:CaissePrimaireDassuranceMaladieMember
2859 CVR Trustee Claim [member] Member sny:CVRTrusteeClaimMember
2860 Business Combinations [Axis] Axis ifrs-full:BusinessCombinationsAxis
2861 Entity's total for business combinations [member] Member ifrs-full:EntitysTotalForBusinessCombinationsMember
2862 Contingencies arising from certain Business Divestitures [member] Member sny:ContingenciesArisingFromCertainBusinessDivestituresMember
2863 Classes of Contingent Liabilities [Axis] Axis ifrs-full:ClassesOfContingentLiabilitiesAxis
2864 Contingent liabilities [member] Member ifrs-full:ContingentLiabilitiesMember
2865 Product liabilities [member] Member sny:ProductLiabilitiesMember
2866 Classes of intangible assets and goodwill [axis] Axis ifrs-full:ClassesOfIntangibleAssetsAndGoodwillAxis
2867 Intangible assets and goodwill [member] Member ifrs-full:IntangibleAssetsAndGoodwillMember
2868 Patents [Member] Member sny:Patents1Member
2869 Disclosure of Legal and Arbitral Proceedings [Line Items] LineItems sny:DisclosureOfLegalAndArbitralProceedingsLineItems
2870 Provisions for product liability risks, litigation and other Concept (Monetary) As Of Credit sny:NoncurrentProvisionForProductLiabilityRisksLitigationAndOther
2871 Environment risks and remediation Concept (Monetary) As Of Credit sny:NoncurrentProvisionForEnvironmentRisksAndRemediation
2872 Number of civil individual actions Concept (Pure) As Of sny:NumberOfCivilOIndividualActions
2873 Number of plaintiffs Concept (Integer) For Period sny:NumberOfPlaintiffs
2874 Number of ingesting plaintiffs Concept (Pure) As Of sny:NumberOfIngestingPlaintiffs
2875 Number of loss consortium plaintiffs Concept (Integer) For Period sny:NumberOfLossConsortiumPlaintiffs
2876 Maximum penalty amount sought by plaintiffs for each violation Concept (Monetary) For Period Debit sny:MaximumPenaltyAmountSoughtByPlaintiffsForEachViolation
2877 Number of opposition actions Concept (Pure) As Of sny:NumberOfOppositionActions
2878 Number of class action filed against a French affiliate Concept (Decimal) For Period sny:NumberOfPotentialClassFiledAgainstAffiliates
2879 Number of claims on which the class action is based Concept (Integer) For Period sny:NumberOfClaimsOnWhichTheClassActionIsBased
2880 Litigation amount payable Concept (Monetary) As Of Credit sny:LitigationAmountPayable
2881 Losses on litigation settlements Concept (Monetary) For Period Debit sny:IndemnificationAmountAwardedToApotexForSection8
2882 Losses on litigation settlements Concept (Monetary) For Period Debit sny:AdditionalIndemnificationAmountAwardedToApotexForSection8
2883 Number of patent actions initially filed Concept (Pure) As Of sny:NumberOfPatentActionsInitiallyFiled
2884 Number of patent actions after consolidation Concept (Pure) As Of sny:NumberOfPatentActionsAfterConsolidation
2885 Number of patents allegedly infringed Concept (Pure) As Of sny:NumberOfPatentsAllegedlyInfringed
2886 Number of patents found infringed Concept (Pure) As Of sny:NumberOfPatentsFoundInfringed
2887 Injunctive relief in provisional damages and unspecified damages Concept (Monetary) As Of Credit sny:ProvisionalDamagesClaimedByAmgen
2888 Number of IPR petitions Concept (Integer) For Period sny:NumberOfIPRPetitions
2889 Security bond posted increased from Concept (Monetary) As Of Debit sny:SecurityBondPostedIncreasedFrom
2890 Security bond posted increased to Concept (Monetary) As Of Debit sny:SecurityBondPostedIncreasedTo
2891 Apotex sought damages range from Concept (Monetary) As Of Debit sny:ApotexSoughtDamagesRangeFrom
2892 Apotex sought damages range to Concept (Monetary) As Of Debit sny:ApotexSoughtDamagesRangeTo
2893 Payment of damages sought by Australian Department of Health related to the Apotex preliminary injunction, up to Concept (Monetary) As Of Debit sny:PaymentOfDamagesSoughtByAustralianDepartmentOfHealthRelatedToTheApotexPreliminaryInjunctionUpTo
2894 Number of complaint Concept (Integer) For Period sny:NumberOfComplaint
2895 Threshold amount relating to losses triggering indemnification Concept (Monetary) As Of Debit sny:ThresholdAmountRelatingToLossesTriggeringIndemnification
2896 Indemnification aggregate cap Concept (Monetary) As Of Debit sny:IndemnificationAggregateCap
2897 Indemnification aggregate cap related to product liability claims Concept (Monetary) As Of Debit sny:IndemnificationAggregateCapRelatedToProductLiabilityClaims
2898 Indemnification related to environmental indemnifiable losses limited to Concept (Percent) As Of sny:IndemnificationRelatedToEnvironmentalIndemnifiableLossesLimitedTo
2899 Global indemnification cap and indemnification cap related to environmental liabilities Concept (Monetary) As Of Debit sny:GlobalIndemnificationCapAndIndemnificationCapRelatedToEnvironmentalLiabilities
2900 Indemnification cap related to product liability cases Concept (Monetary) As Of Debit sny:IndemnificationCapRelatedToProductLiabilityCases
2901 Agregate particpation percentage of legacy companies in ACS Concept (Percent) For Period sny:EquityInvestmentSoldPercentage
2902 Indemnification amount for damages sought by Bayer in the LLRICE601 and LLRICE604 arbitration Concept (Monetary) As Of Debit sny:IndemnificationAmountForDamagesSoughtByBayerInTheLLRICESixZeroOneAndLLRICESixZeroFourArbitration
2903 Amount of incurred losses alleged by Bayer in the LLRICE litigation Concept (Monetary) For Period Debit sny:AmountOfIncurredLossesAllegedByBayerInTheLlriceLitigation
2904 Final claimed amount for damages sought by bayer in the LLRICE601 and LLRICE604 arbitration Concept (Monetary) As Of Credit sny:AmountOfCompensationClaimedByFilledPlaintiffs
2905 Global indemnification cap Concept (Monetary) As Of Debit sny:GlobalIndemnificationCap
2906 Environmental damages amount up to which CCC is liable to indemnification Concept (Monetary) As Of Debit sny:EnvironmentalDamagesAmountUpToWhichCccisLiableToIndemnification
2907 Environmental damages amount up to which Hoechst is liable to indemnification and from which liabilities are shared between Hoechst and CCC Concept (Monetary) As Of Debit sny:EnvironmentalDamagesAmountUpToWhichHoechstIsLiableToIndemnificationAndFromWhichLiabilitiesAreSharedBetweenHoechstAndCCC
2908 Number of claims before a commercial court Concept (Pure) As Of sny:NumberOfClaimsBeforeACommercialCourt
2909 Amount of damages sought by plaintiffs to be awarded to Rhodia Concept (Monetary) As Of Debit sny:AmountOfDamagesSoughtByPlaintiffsToBeAwardedToRhodia
2910 Amount of damages for alleged individual losses sought by plaintiff 1 Concept (Monetary) As Of Debit sny:AmountOfDamagesForAllegedIndividualLossesSoughtByPlaintiff
2911 Amount of damages for alleged individual losses sought by plaintiff 2 Concept (Monetary) As Of Debit sny:AmountOfDamagesForAllegedIndividualLossesSoughtByPlaintiffTwo
2912 Threshold amount, relating to environmental costs attributable to four defined waste deposit sites in Germany, triggering indemnification to Clariant Concept (Monetary) As Of Debit sny:ThresholdAmountRelatingToEnvironmentalCostsAttributableToFourDefinedWasteDepositSitesInGermanyTriggeringIndemnificationToClariant
2913 Costs related to specific waste deposit site, percentage Concept (Percent) For Period sny:CostsRelatedToSpecificWasteDepositSitePercentage
2914 Fund reserves transferred to Infraserv Hoechst Concept (Monetary) As Of Debit sny:FundReservesTransferredToInfraservHoechst
2915 Agreed reimbursement to Infraserv Hoechst of current and future environmental expenses up to Concept (Monetary) As Of Debit sny:AgreedReimbursementToInfraservHoechstOfCurrentAndFutureEnvironmentalExpensesUpto
2916 1232 - Disclosure - Provisions for Discounts, Rebates and Sales Returns - Summary of Movement in Provisions for Discounts, Rebates and Sales Returns (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureProvisionsForDiscountsRebatesAndSalesReturnsSummaryOfMovementInProvisionsForDiscountsRebatesAndSalesReturns
2917 Disclosure of other provisions [table] Table

*

*

ifrs-full:DisclosureOfOtherProvisionsTable
2918 Classes of other provisions [axis] Axis ifrs-full:ClassesOfProvisionsAxis
2919 Other provisions [member] Member ifrs-full:OtherProvisionsMember
2920 Government and State Programs [Member] Member sny:GovernmentAndStateProgramsMember
2921 Government And GPO Programs [member] Member sny:GovernmentAndGpoProgramsMember
2922 Chargeback Incentives [Member] Member sny:ChargebackIncentivesMember
2923 Rebates and Discounts [Member] Member sny:RebatesAndDiscountsMember
2924 Sales Returns [member] Member sny:SalesReturnMember
2925 Other Deductions [Member] Member sny:OtherDeductionsMember
2926 Disclosure of other provisions [line items] LineItems ifrs-full:DisclosureOfOtherProvisionsLineItems
2927 Provisions for discounts, rebates and sales returns, Beginning balance Concept (Monetary) As Of Credit sny:ProvisionsForDiscountsRebatesAndSalesReturns
2928 Changes in scope of consolidation Concept (Monetary) For Period Credit sny:ChangeInScopeOfConsolidationInProvisionForDiscountsRebatesAndSalesReturns
2929 Provision related to current period sales Concept (Monetary) For Period Credit sny:NewProvisionRelatedToCurrentPeriodSales
2930 Net change in provision related to prior period sales Concept (Monetary) For Period Credit sny:IncreaseDecreaseInProvisionsRelatedToPriorPeriodSales
2931 Payments made Concept (Monetary) For Period Credit sny:PaymentsMadeProvisionsForDiscountsRebatesAndSalesReturns
2932 Currency translation differences Concept (Monetary) For Period Credit sny:IncreaseDecreaseThroughNetExchangeDifferencesProvisionsForDiscountsRebatesAndSalesReturns
2933 Provisions for discounts, rebates and sales returns, Ending balance Concept (Monetary) As Of Credit sny:ProvisionsForDiscountsRebatesAndSalesReturns
2934 1233 - Disclosure - Provisions for Discounts, Rebates and Sales Returns - Summary of Movement in Provisions for Discounts, Rebates and Sales Returns (Parenthetical) (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureProvisionsForDiscountsRebatesAndSalesReturnsSummaryOfMovementInProvisionsForDiscountsRebatesAndSalesReturnsParenthetical
2935 Disclosure of other provisions [table] Table

*

*

ifrs-full:DisclosureOfOtherProvisionsTable
2936 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
2937 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
2938 US [member] Member country:US
2939 Disclosure of other provisions [line items] LineItems ifrs-full:DisclosureOfOtherProvisionsLineItems
2940 Provisions related to net sales Concept (Monetary) As Of Credit sny:ProvisionsForDiscountsRebatesAndSalesReturns
2941 1234 - Disclosure - Personnel Costs - Summary of Personal Costs (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosurePersonnelCostsSummaryOfPersonalCosts
2942 Implied Table Table

*

*

implied:Table
2943 Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [abstract] Abstract ifrs-full:DisclosureOfAmountsIncurredByEntityForProvisionOfKeyManagementPersonnelServicesProvidedBySeparateManagementEntitiesAbstract
2944 Salaries Concept (Monetary) For Period Debit ifrs-full:WagesAndSalaries
2945 Social security charges (including defined-contribution pension plans) Concept (Monetary) For Period Debit ifrs-full:SocialSecurityContributions
2946 Stock options and other share-based payment expense Concept (Monetary) For Period Debit ifrs-full:ExpenseFromSharebasedPaymentTransactionsWithEmployees
2947 Defined-benefit pension plans Concept (Monetary) For Period Debit ifrs-full:PostemploymentBenefitExpenseDefinedBenefitPlans
2948 Other employee benefits Concept (Monetary) For Period Debit ifrs-full:OtherEmployeeExpense
2949 Total Concept (Monetary) For Period Debit ifrs-full:EmployeeBenefitsExpense
2950 1235 - Disclosure - Personnel Costs - Summary of Personal Costs (Parenthetical) (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosurePersonnelCostsSummaryOfPersonalCostsParenthetical
2951 Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [table] Table

*

*

ifrs-full:DisclosureOfAmountsIncurredByEntityForProvisionOfKeyManagementPersonnelServicesProvidedBySeparateManagementEntitiesTable
2952 Segments [axis] Axis ifrs-full:SegmentsAxis
2953 Segments [member] Member ifrs-full:SegmentsMember
2954 Animal Health Business [member] Member sny:AnimalHealthBusinessMember
2955 Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items] LineItems ifrs-full:DisclosureOfAmountsIncurredByEntityForProvisionOfKeyManagementPersonnelServicesProvidedBySeparateManagementEntitiesLineItems
2956 Employee benefits expense Concept (Monetary) For Period Debit ifrs-full:EmployeeBenefitsExpense
2957 1236 - Disclosure - Personnel Costs - Additional Information (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosurePersonnelCostsAdditionalInformation
2958 Implied Table Table

*

*

implied:Table
2959 Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [abstract] Abstract ifrs-full:DisclosureOfAmountsIncurredByEntityForProvisionOfKeyManagementPersonnelServicesProvidedBySeparateManagementEntitiesAbstract
2960 Number of employees Concept (Decimal) As Of ifrs-full:NumberOfEmployees
2961 1237 - Disclosure - Personnel Costs - Summary of Employee Numbers by Function (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosurePersonnelCostsSummaryOfEmployeeNumbersByFunction
2962 Implied Table Table

*

*

implied:Table
2963 Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [abstract] Abstract ifrs-full:DisclosureOfAmountsIncurredByEntityForProvisionOfKeyManagementPersonnelServicesProvidedBySeparateManagementEntitiesAbstract
2964 Number of employees, production Concept (Decimal) As Of sny:NumberOfEmployeesProduction
2965 Number of employees, research and development Concept (Decimal) As Of sny:NumberOfEmployeesResearchAndDevelopment
2966 Number of employees, sales force Concept (Decimal) As Of sny:NumberOfEmployeesSalesForce
2967 Number of employees, marketing and support functions Concept (Decimal) As Of sny:NumberOfEmployeesMarketingAndSupportFunctions
2968 Number of employees, total Concept (Decimal) As Of ifrs-full:NumberOfEmployees
2969 1238 - Disclosure - Personnel Costs - Summary of Employee Numbers by Function (Parenthetical) (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosurePersonnelCostsSummaryOfEmployeeNumbersByFunctionParenthetical
2970 Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [table] Table

*

*

ifrs-full:DisclosureOfAmountsIncurredByEntityForProvisionOfKeyManagementPersonnelServicesProvidedBySeparateManagementEntitiesTable
2971 Segments [axis] Axis ifrs-full:SegmentsAxis
2972 Segments [member] Member ifrs-full:SegmentsMember
2973 Animal Health Business [member] Member sny:AnimalHealthBusinessMember
2974 Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [line items] LineItems ifrs-full:DisclosureOfAmountsIncurredByEntityForProvisionOfKeyManagementPersonnelServicesProvidedBySeparateManagementEntitiesLineItems
2975 Number of employees Concept (Decimal) As Of ifrs-full:NumberOfEmployees
2976 1239 - Disclosure - Other Operating Income - Additional Information (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureOtherOperatingIncomeAdditionalInformation
2977 Disclosure Of Other Operating Income [Table] Table

*

*

sny:DisclosureOfOtherOperatingIncomeTable
2978 Segments [axis] Axis ifrs-full:SegmentsAxis
2979 Segments [member] Member ifrs-full:SegmentsMember
2980 Sanofis Pharmaceuticals Partners [member] Member sny:SanofisPharmaceuticalsPartnersMember
2981 Associates [axis] Axis ifrs-full:SignificantInvestmentsInAssociatesAxis
2982 Entity's total for associates [member] Member ifrs-full:EntitysTotalForAssociatesMember
2983 Regeneron [member] Member sny:RegeneronMember
2984 Income Statement Location [Axis] Axis us-gaap:IncomeStatementLocationAxis
2985 Income Statement Location [Domain] Member us-gaap:IncomeStatementLocationDomain
2986 Other operating income (expense) [member] Member us-gaap:OtherOperatingIncomeExpenseMember
2987 Disclosure Of Other Operating Income [Line Items] LineItems sny:DisclosureOfOtherOperatingIncomeLineItems
2988 Other operating income Concept (Monetary) For Period Credit ifrs-full:MiscellaneousOtherOperatingIncome
2989 Net operating foreign exchange losses Concept (Monetary) For Period Debit sny:NetOperatingForeignExchangeLosses
2990 Gains on divestment of some mature products Concept (Monetary) For Period Credit sny:GainsOnDivestmentOfProducts
2991 Gain on data transfer agreement Concept (Monetary) For Period Credit sny:GainOnDataTransferAgreement
2992 1240 - Disclosure - Other Operating Expenses - Additional Information (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureOtherOperatingExpensesAdditionalInformation
2993 Disclosure of Other Operating Income Expenses [Table] Table

*

*

sny:DisclosureOfOtherOperatingIncomeExpensesTable
2994 Classes of assets [axis] Axis ifrs-full:ClassesOfAssetsAxis
2995 Assets [member] Member ifrs-full:ClassesOfAssetsMember
2996 Dengue Vaccine Project [member] Member sny:DengueVaccineProjectMember
2997 Associates [axis] Axis ifrs-full:SignificantInvestmentsInAssociatesAxis
2998 Entity's total for associates [member] Member ifrs-full:EntitysTotalForAssociatesMember
2999 Regeneron Pharmaceuticals, Inc. [member] Member sny:RegeneronPharmaceuticalsIncMember
3000 Income Statement Location [Axis] Axis us-gaap:IncomeStatementLocationAxis
3001 Income Statement Location [Domain] Member us-gaap:IncomeStatementLocationDomain
3002 Share of profit or loss from commercialization of monoclonal antibodies [member] Member sny:ShareOfProfitOrLossFromCommercializationOfMonoclonalAntibodiesMember
3003 Commercialization related expenses [member] Member sny:CommercializationRelatedExpensesMember
3004 Share of profit or loss from commercialization of Zaltrap [member] Member sny:ShareOfProfitOrLossFromCommercializationOfZaltrapMember
3005 Disclosure Of Other Operating Income Expenses [Line Items] LineItems sny:DisclosureOfOtherOperatingIncomeExpensesLineItems
3006 Other operating expense Concept (Monetary) For Period Debit ifrs-full:MiscellaneousOtherOperatingExpense
3007 Other operating income Concept (Monetary) For Period Credit ifrs-full:MiscellaneousOtherOperatingIncome
3008 Provisions to cover litigation and environmental risks Concept (Monetary) As Of Credit sny:ProvisionForLitigationAndEnvironmentalRisks
3009 Acquisition related costs Concept (Monetary) For Period Debit ifrs-full:AcquisitionrelatedCostsRecognisedAsExpenseForTransactionRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombination
3010 Impairment loss recognised in profit or loss, property, plant and equipment Concept (Monetary) For Period ifrs-full:ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment
3011 Other operating expense, share of profits due to alliance partners other than BMS Concept (Monetary) For Period Debit sny:MiscellaneousOtherOperatingExpenseShareOfProfitsDueToAlliancePartnersOtherThanBMS
3012 1241 - Disclosure - Restructuring Costs and Similar Items - Additional Information (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureRestructuringCostsAndSimilarItemsAdditionalInformation
3013 Disclosure of restructuring costs and similar items [table] Table

*

*

sny:DisclosureOfRestructuringCostsAndSimilarItemsTable
3014 Income Statement Location [Axis] Axis us-gaap:IncomeStatementLocationAxis
3015 Income Statement Location [Domain] Member us-gaap:IncomeStatementLocationDomain
3016 Research and development agreement with Regeneron [member] Member sny:ResearchAndDevelopmentAgreementWithRegeneronMember
3017 Restructuring costs and similar items [member] Member sny:RestructuringCostsAndSimilarItemsMember
3018 Classes of Contingent Liabilities [Axis] Axis ifrs-full:ClassesOfContingentLiabilitiesAxis
3019 Contingent liabilities [member] Member ifrs-full:ContingentLiabilitiesMember
3020 Evotec [member] Member sny:EvotecMember
3021 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
3022 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
3023 Europe [member] Member us-gaap:EuropeMember
3024 Disclosure of restructuring costs and similar items [line items] LineItems sny:DisclosureOfRestructuringCostsAndSimilarItemsLineItems
3025 Expense of restructuring activities Concept (Monetary) For Period Debit ifrs-full:ExpenseOfRestructuringActivities
3026 Termination benefit payments Concept (Monetary) For Period Credit sny:ProvisionsForTerminationBenefitPayments
3027 Provision for penalities from restructuring Concept (Monetary) For Period Credit sny:ProvisionsForPenaltiesFromRestructuring
3028 Losses on property plant and equipment due to site closures or divestments Concept (Monetary) For Period Debit ifrs-full:LossesOnDisposalsOfPropertyPlantAndEquipment
3029 Transfer cost of infectious diseases Concept (Monetary) For Period Debit sny:TransferCostOfInfectiousDiseases
3030 Upfront payments Concept (Monetary) For Period Debit sny:UpfrontPayments
3031 Sanofi transformation programs Concept (Monetary) For Period Debit sny:ExpenseOfRestructuringActivitiesOtherTransformationPrograms
3032 1242 - Disclosure - Restructuring Costs and Similar Items - Summary of Restructuring Costs and Similar Items (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureRestructuringCostsAndSimilarItemsSummaryOfRestructuringCostsAndSimilarItems
3033 Implied Table Table

*

*

implied:Table
3034 Disclosure of restructuring costs and similar items [abstract] Abstract sny:DisclosureOfRestructuringCostsAndSimilarItemsAbstract
3035 Employee-related expenses Concept (Monetary) For Period Debit sny:ExpenseOfRestructuringActivitiesEmployeeRelatedExpenses
3036 Expenses related to property, plant and equipment and to inventories Concept (Monetary) For Period Debit sny:ExpenseOfRestructuringActivitiesRelatedToPropertyPlantAndEquipmentAndToInventories
3037 Compensation for early termination of contracts (other than contracts of employment) Concept (Monetary) For Period Debit sny:ExpenseOfRestructuringActivitiesCompensationForEarlyTerminationOfContracts
3038 Decontamination costs Concept (Monetary) For Period Debit sny:ExpenseOfRestructuringActivitiesDecontaminationCosts
3039 Other restructuring costs Concept (Monetary) For Period Debit sny:ExpenseOfRestructuringActivitiesOther
3040 Total Concept (Monetary) For Period Debit sny:RestructuringCostsAndSimilarItems
3041 1243 - Disclosure - Other Gains And Losses, and Litigation - Additional Information (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureOtherGainsAndLossesAndLitigationAdditionalInformation
3042 Disclosure of other gains and losses, and litigation [table] Table

*

*

sny:DisclosureOfOtherGainsAndLossesAndLitigationTable
3043 Counterparties [axis] Axis ifrs-full:CounterpartiesAxis
3044 Counterparties [member] Member ifrs-full:CounterpartiesMember
3045 Sanofi Pasteur MSD [member] Member sny:SanofiPasteurMSDMember
3046 Disclosure of other gains and losses, and litigation [line items] LineItems sny:DisclosureOfOtherGainsAndLossesAndLitigationLineItems
3047 Other gains and (losses) and litigation Concept (Monetary) For Period Credit sny:OtherGainsAndLossesAndLitigation
3048 Purchase price adjustment amount Concept (Monetary) For Period Debit sny:PurchasePriceAdjustmentAmount
3049 1244 - Disclosure - Financial Expenses and Income - Summary of Analysis of Financial Income and Expenses (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureFinancialExpensesAndIncomeSummaryOfAnalysisOfFinancialIncomeAndExpenses
3050 Implied Table Table

*

*

implied:Table
3051 Disclosure Of Detailed Information About Finance Income Expense [abstract] Abstract sny:DisclosureOfDetailedInformationAboutFinanceIncomeExpenseAbstract
3052 Cost of debt Concept (Monetary) For Period Debit ifrs-full:InterestExpenseOnBorrowings
3053 Interest income Concept (Monetary) For Period Credit sny:InterestIncome
3054 Cost of net debt Concept (Monetary) For Period Debit sny:CostOfDebtNet
3055 Non-operating foreign exchange gains/(losses) Concept (Monetary) For Period Credit sny:NonoperatingForeignExchangeGainsLosses
3056 Unwinding of discounting of provisions Concept (Monetary) For Period Debit ifrs-full:ExpenseDueToUnwindingOfDiscountOnProvisions
3057 Net interest cost related to employee benefits Concept (Monetary) For Period Debit sny:NetInterestCostRelatedToEmployeeBenefits
3058 Gains/(losses) on disposals of financial assets Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnAvailableforsaleFinancialAssets
3059 Impairment losses on financial assets, net of reversals Concept (Monetary) For Period Debit ifrs-full:ImpairmentLossOnFinancialAssets
3060 Other Concept (Monetary) For Period Credit ifrs-full:OtherFinanceIncomeCost
3061 Net financial income/(expenses) Concept (Monetary) For Period Credit ifrs-full:FinanceIncomeCost
3062 Comprising: financial expenses Concept (Monetary) For Period Debit ifrs-full:FinanceCosts
3063 Comprising: financial income Concept (Monetary) For Period Credit ifrs-full:FinanceIncome
3064 1245 - Disclosure - Financial Expenses and Income - Summary of Analysis of Financial Income and Expenses (Parenthetical) (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureFinancialExpensesAndIncomeSummaryOfAnalysisOfFinancialIncomeAndExpensesParenthetical
3065 Disclosure Of Detailed Information About Finance Income Expense [table] Table

*

*

sny:DisclosureOfDetailedInformationAboutFinanceIncomeExpenseTable
3066 Hedged items [axis] Axis ifrs-full:HedgedItemsAxis
3067 Hedged items [member] Member ifrs-full:HedgedItemsMember
3068 Interest Rate and Currency Derivatives Used to Hedge Debt [member] Member sny:InterestRateAndCurrencyDerivativesMember
3069 Disclosure of detailed information about finance income expense [Line Items] LineItems sny:DisclosureOfDetailedInformationAboutFinanceIncomeExpenseLineItems
3070 Gain on derivatives used to manage debt Concept (Monetary) For Period Credit sny:GainDerivativesUsedToManageDebt
3071 Gain on derivatives used to manage cash and cash equivalents Concept (Monetary) For Period Debit sny:GainOnDerivativesUsedToManageCashAndCashEquivalents
3072 Decrease in share price, percentage Concept (Percent) For Period sny:PercentageOfDecreaseInSharePrice
3073 Impairment loss on financial assets Alnylam Concept (Monetary) For Period Debit sny:ImpairmentLossOnFinancialAssetsAlnylam
3074 1246 - Disclosure - Income Tax Expense - Summary of Allocation of Income Tax Expense Between Current and Deferred Taxes (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureIncomeTaxExpenseSummaryOfAllocationOfIncomeTaxExpenseBetweenCurrentAndDeferredTaxes
3075 Implied Table Table

*

*

implied:Table
3076 Disclosure Of Income Tax Expense and Deferred Taxes [Abstract] Abstract sny:DisclosureOfIncomeTaxExpenseAndDeferredTaxesAbstract
3077 Current taxes Concept (Monetary) For Period Debit ifrs-full:CurrentTaxExpenseIncome
3078 Deferred taxes Concept (Monetary) For Period Debit ifrs-full:DeferredTaxExpenseIncome
3079 Total Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
3080 Income before tax and associates and joint ventures Concept (Monetary) For Period Credit sny:IncomeBeforeTaxAndInvestmentsAccountedForEquityMethodInvestments
3081 1247 - Disclosure - Income Tax Expense - Summary of Difference Between Effective Tax Rate and Standard Corporate Income Tax Rate (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureIncomeTaxExpenseSummaryOfDifferenceBetweenEffectiveTaxRateAndStandardCorporateIncomeTaxRate
3082 Implied Table Table

*

*

implied:Table
3083 Disclosure of Difference of Effective Tax Rate and Standard Corporate Income Tax Rate [Abstract] Abstract sny:DisclosureOfDifferenceOfEffectiveTaxRateAndStandardCorporateIncomeTaxRateAbstract
3084 Standard tax rate applicable in France Concept (Percent) For Period ifrs-full:ApplicableTaxRate
3085 Difference between the standard French tax rate and the rates applicable to the Sanofi group Concept (Percent) For Period ifrs-full:TaxRateEffectOfForeignTaxRates
3086 Contribution on distributed income (3%) Concept (Percent) For Period sny:ContributionOnDistributedIncome
3087 Revisions to tax exposures and settlements of tax disputes Concept (Percent) For Period sny:RevisionsToTaxExposuresAndSettlementsOfTaxDisputes
3088 Impact of US tax reform Concept (Percent) For Period sny:DirectAndIndirectConsequencesOfUsTaxReform
3089 Other items Concept (Percent) For Period ifrs-full:OtherTaxRateEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome
3090 Effective tax rate Concept (Percent) For Period ifrs-full:AverageEffectiveTaxRate
3091 1248 - Disclosure - Income Tax Expense - Summary of Difference Between Effective Tax Rate and Standard Corporate Income Tax Rate (Parenthetical) (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureIncomeTaxExpenseSummaryOfDifferenceBetweenEffectiveTaxRateAndStandardCorporateIncomeTaxRateParenthetical
3092 Disclosure of Difference of Effective Tax Rate and Standard Corporate Income Tax Rate [Table] Table

*

*

sny:DisclosureOfDifferenceOfEffectiveTaxRateAndStandardCorporateIncomeTaxRateTable
3093 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
3094 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
3095 France [member] Member country:FR
3096 US [member] Member country:US
3097 Disclosure of Difference of Effective Tax Rate and Standard Corporate Income Tax Rate [Line items] LineItems sny:DisclosureOfDifferenceOfEffectiveTaxRateAndStandardCorporateIncomeTaxRateLineItems
3098 Percentage of distributed income Concept (Percent) For Period sny:PercentageOfAdditionalTaxContributionOnDistributedIncome
3099 Tax reform Concept (Monetary) For Period Debit sny:DirectAndIndirectConsequencesOfUsTaxReformValue
3100 Tax reform estimated cost of remitting profits back payable period Concept (xbrli:durationItemType) For Period sny:EstimatedTaxChargeOnDeemedRepatriationPayablePeriod
3101 Tax reform estimated cost of remitting profits back payable Concept (Monetary) For Period Debit sny:EstimatedTaxChargeOnDeemedRepatriation
3102 Tax reform future expense Concept (Monetary) For Period Debit sny:DirectAndIndirectTaxConsequencesOfUsTaxReformExcludingEstimatedTaxChargeOnDeemedRepatriation
3103 1249 - Disclosure - Share of Profit/Loss of Investments Accounted for Using the Equity Method - Summary of Analysis of Share of Profit/Loss from Investments Accounted for Using Equity Method (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureShareOfProfitLossOfInvestmentsAccountedForUsingTheEquityMethodSummaryOfAnalysisOfShareOfProfitLossFromInvestmentsAccountedForUsingEquityMethod
3104 Disclosure of share of profit loss of associates and joint ventures [table] Table

*

*

sny:DisclosureOfShareOfProfitLossOfAssociatesAndJointVenturesTable
3105 Associates [axis] Axis ifrs-full:SignificantInvestmentsInAssociatesAxis
3106 Entity's total for associates [member] Member ifrs-full:EntitysTotalForAssociatesMember
3107 Regeneron [member] Member sny:RegeneronMember
3108 BMS co- promotion [member] Member sny:BMSCoPromotionMember
3109 Other investments accounted for using the equity method [member] Member sny:OtherInvestmentMember
3110 Disclosure of share of profit loss of associates and joint ventures [line items] LineItems sny:DisclosureOfShareOfProfitLossOfAssociatesAndJointVenturesLineItems
3111 Share of profit/loss from investments accounted for using equity method Concept (Monetary) For Period Credit ifrs-full:ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod
3112 1250 - Disclosure - Share of Profit/Loss of Investments Accounted for Using the Equity Method - Additional Information (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureShareOfProfitLossOfInvestmentsAccountedForUsingTheEquityMethodAdditionalInformation
3113 Disclosure of share of profit loss of associates and joint ventures [table] Table

*

*

sny:DisclosureOfShareOfProfitLossOfAssociatesAndJointVenturesTable
3114 Associates [axis] Axis ifrs-full:SignificantInvestmentsInAssociatesAxis
3115 Entity's total for associates [member] Member ifrs-full:EntitysTotalForAssociatesMember
3116 Regeneron [member] Member sny:RegeneronMember
3117 Disclosure of share of profit loss of associates and joint ventures [line items] LineItems sny:DisclosureOfShareOfProfitLossOfAssociatesAndJointVenturesLineItems
3118 Share of profit/loss from investments accounted for using equity method Concept (Monetary) For Period Credit ifrs-full:ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod
3119 1251 - Disclosure - Net Income Attributable to Non-Controlling Interests - Summary of Trends in Net Income Attributable to Non-Controlling Interests (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureNetIncomeAttributableToNonControllingInterestsSummaryOfTrendsInNetIncomeAttributableToNonControllingInterests
3120 Disclosure of net income attributable to Non-controlling Interests [Table] Table

*

*

sny:DisclosureOfNetIncomeAttributableToNoncontrollingInterestsTable
3121 Associates [axis] Axis ifrs-full:SignificantInvestmentsInAssociatesAxis
3122 Entity's total for associates [member] Member ifrs-full:EntitysTotalForAssociatesMember
3123 BMS [member] Member sny:BmsMember
3124 Other investments [member] Member ifrs-full:AggregatedIndividuallyImmaterialAssociatesMember
3125 Disclosure of net income attributable to non-controlling interests [line items] LineItems sny:DisclosureOfNetIncomeAttributableToNoncontrollingInterestsLineItems
3126 Net income attributable to non-controlling interests Concept (Monetary) For Period Credit ifrs-full:ProfitLossAttributableToNoncontrollingInterests
3127 1252 - Disclosure - Related Party Transactions - Additional Information (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureRelatedPartyTransactionsAdditionalInformation
3128 Implied Table Table

*

*

implied:Table
3129 Disclosure of transactions between related parties [abstract] Abstract ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesAbstract
3130 Average number of members of executive committee Concept (Integer) For Period sny:NumberOfExecutiveCommitteeMembers
3131 Number of directors holding office Concept (Integer) For Period sny:NumberOfDirectors
3132 1253 - Disclosure - Related Party Transactions - Schedule of Compensation Paid to Key Management Personnel (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureRelatedPartyTransactionsScheduleOfCompensationPaidToKeyManagementPersonnel
3133 Implied Table Table

*

*

implied:Table
3134 Disclosure of related party [Abstract] Abstract sny:DisclosureOfRelatedPartyAbstract
3135 Disclosure of compensation paid to key management personnel [abstract] Abstract ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesAbstract
3136 Short-term benefits Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensationShorttermEmployeeBenefits
3137 Post-employment benefits Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensationPostemploymentBenefits
3138 Share-based payment Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensationSharebasedPayment
3139 Total recognized in profit or loss Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensation
3140 1254 - Disclosure - Related Party Transactions - Summary of aggregate amounts Payable to Key Management Personnel (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureRelatedPartyTransactionsSummaryOfAggregateAmountsPayableToKeyManagementPersonnel
3141 Implied Table Table

*

*

implied:Table
3142 Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [abstract] Abstract ifrs-full:DisclosureOfAmountsIncurredByEntityForProvisionOfKeyManagementPersonnelServicesProvidedBySeparateManagementEntitiesAbstract
3143 Aggregate top-up pension obligation Concept (Monetary) For Period Debit sny:AggregatePensionObligationInFavorOfCertainCorporateOfficersAndOfMembersOfTheExecutiveCommittee
3144 Aggregate termination benefits and lump-sum retirement benefits Concept (Monetary) For Period Debit sny:KeyManagementPersonnelCompensationTerminationBenefitsAndLumpSumRetirementBenefits
3145 1255 - Disclosure - Disclosures About Major Customers and Credit Risk - Additional Information (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureDisclosuresAboutMajorCustomersAndCreditRiskAdditionalInformation
3146 Disclosure of Information About Major Customers and Credit Risk [Table] Table

*

*

sny:DisclosureOfInformationAboutMajorCustomersAndCreditRiskTable
3147 Major customers [axis] Axis ifrs-full:MajorCustomersAxis
3148 Customers [member] Member ifrs-full:MajorCustomersMember
3149 Customer one [member] Member sny:CustomerOneMember
3150 Customer two [member] Member sny:CustomerTwoMember
3151 Customer three [member] Member sny:CustomerThreeMember
3152 Disclosure of information about major customers and credit risk [line items] LineItems sny:DisclosureOfInformationAboutMajorCustomersAndCreditRiskLineItems
3153 Percentage of entity's revenue Concept (Percent) For Period ifrs-full:PercentageOfEntitysRevenue
3154 1256 - Disclosure - Segment Information - Additional Information (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureSegmentInformationAdditionalInformation
3155 Implied Table Table

*

*

implied:Table
3156 Disclosure of operating segments [abstract] Abstract ifrs-full:DisclosureOfOperatingSegmentsAbstract
3157 Number of operating segments Concept (Integer) For Period sny:NumberOfOperatingSegments1
3158 1257 - Disclosure - Segment Information - Summary of Net Sales by Segment and Geographical Area (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureSegmentInformationSummaryOfNetSalesBySegmentAndGeographicalArea
3159 Disclosure of geographical areas [table] Table

*

*

ifrs-full:DisclosureOfGeographicalAreasTable
3160 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
3161 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
3162 Europe [member] Member us-gaap:EuropeMember
3163 US [member] Member country:US
3164 Other Countries in Segement Results [member] Member sny:OtherCountriesInSegementResultsMember
3165 Segment consolidation items [axis] Axis ifrs-full:SegmentConsolidationItemsAxis
3166 Entity's total for segment consolidation items [member] Member ifrs-full:EntitysTotalForSegmentConsolidationItemsMember
3167 Net sales before IFRS 15 impacts [member] Member sny:NetSalesBeforeIFRSImpactsMember
3168 Segments [axis] Axis ifrs-full:SegmentsAxis
3169 Segments [member] Member ifrs-full:SegmentsMember
3170 Pharmaceuticals [member] Member sny:PharmaceuticalsSegmentMember
3171 Consumer Healthcare segment [member] Member sny:ConsumerHealthcareSegmentMember
3172 Vaccines [member] Member sny:VaccinesSegmentMember
3173 Subsegment [Axis] Axis sny:SubsegmentAxis
3174 Subsegment [Domain] Member sny:SubsegmentDomain
3175 Diabetes & Cardiovascular [member] Member sny:DiabetesAndCardiovascularMember
3176 Established Prescription Products [member] Member sny:EstablishedPrescriptionProductsMember
3177 Specialty Care [member] Member sny:SpecialtyCareMember
3178 Generics [member] Member sny:GenericsMember
3179 Products and services [axis] Axis ifrs-full:ProductsAndServicesAxis
3180 Products and services [member] Member ifrs-full:ProductsAndServicesMember
3181 Lantus [member] Member sny:LantusMember
3182 Toujeo [member] Member sny:ToujeoMember
3183 Lovenox [member] Member sny:LovenoxMember
3184 Plavix [member] Member sny:PlavixMember
3185 Aubagio [member] Member sny:AubagioMember
3186 Cerezyme [member] Member sny:CerezymeMember
3187 Myozyme/Lumizyme [member] Member sny:MyozymeOrLumizymeMember
3188 Jevtana [member] Member sny:JevtanaMember
3189 Dupixent [member] Member sny:DupixentMember
3190 Allegra [member] Member sny:AllegraMember
3191 Doliprane [member] Member sny:DolipraneMember
3192 Polio Pertussis Hib Vaccines [member] Member sny:PolioPertussisHibVaccinesMember
3193 Influenza Vaccines [member] Member sny:InfluenzaVaccinesMember
3194 Dulcolax [member] Member sny:DulcolaxMember
3195 Pharmaton [member] Member sny:PharmatonMember
3196 Gold Bond [member] Member sny:GoldBondMember
3197 Retrospective application and retrospective restatement [axis] Axis ifrs-full:RetrospectiveApplicationAndRetrospectiveRestatementAxis
3198 Currently stated [member] Member ifrs-full:RestatedMember
3199 Increase (decrease) due to application of IFRS 15 [member] Member ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member
3200 Disclosure of geographical areas [line items] LineItems ifrs-full:DisclosureOfGeographicalAreasLineItems
3201 Net sales Concept (Monetary) For Period Credit ifrs-full:RevenueFromSaleOfGoods
3202 1258 - Disclosure - Segment Information - Schedule of Segment Results (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureSegmentInformationScheduleOfSegmentResults
3203 Disclosure of operating segments [table] Table

*

*

ifrs-full:DisclosureOfOperatingSegmentsTable
3204 Segment consolidation items [axis] Axis ifrs-full:SegmentConsolidationItemsAxis
3205 Entity's total for segment consolidation items [member] Member ifrs-full:EntitysTotalForSegmentConsolidationItemsMember
3206 New segment reporting model [member] Member sny:NewSegmentReportingModelMember
3207 Previous segment reporting model [member] Member sny:PreviousSegmentReportingModelMember
3208 Segments [axis] Axis ifrs-full:SegmentsAxis
3209 Segments [member] Member ifrs-full:SegmentsMember
3210 Pharmaceuticals [member] Member sny:PharmaceuticalsSegmentMember
3211 Consumer Healthcare segment [member] Member sny:ConsumerHealthcareSegmentMember
3212 Vaccines [member] Member sny:VaccinesSegmentMember
3213 Other segment [member] Member ifrs-full:AllOtherSegmentsMember
3214 Reportable segments [member] Member ifrs-full:ReportableSegmentsMember
3215 Disclosure of operating segments [line items] LineItems ifrs-full:DisclosureOfOperatingSegmentsLineItems
3216 Net sales Concept (Monetary) For Period Credit ifrs-full:RevenueFromSaleOfGoods
3217 Other revenues Concept (Monetary) For Period Credit ifrs-full:OtherRevenue
3218 Cost of sales Concept (Monetary) For Period Debit ifrs-full:CostOfSales
3219 Research and development expenses Concept (Monetary) For Period Debit ifrs-full:ResearchAndDevelopmentExpense
3220 Selling and general expenses Concept (Monetary) For Period Debit ifrs-full:SellingGeneralAndAdministrativeExpense
3221 Other operating income and expenses Concept (Monetary) For Period Credit sny:MiscellaneousOtherOperatingIncomeExpenses
3222 Share of profit/(loss) from investments accounted for using the equity method Concept (Monetary) For Period Credit ifrs-full:ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod
3223 Net income attributable to non-controlling interests Concept (Monetary) For Period Credit ifrs-full:ProfitLossAttributableToNoncontrollingInterests
3224 Business operating income Concept (Monetary) For Period Credit sny:BusinessOperatingIncome
3225 1259 - Disclosure - Segment Information - Schedule of Segment Results (Parenthetical) (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureSegmentInformationScheduleOfSegmentResultsParenthetical
3226 Disclosure of operating segments [table] Table

*

*

ifrs-full:DisclosureOfOperatingSegmentsTable
3227 Segments [axis] Axis ifrs-full:SegmentsAxis
3228 Segments [member] Member ifrs-full:SegmentsMember
3229 Consumer Healthcare segment [member] Member sny:ConsumerHealthcareSegmentMember
3230 Disclosure of operating segments [line items] LineItems ifrs-full:DisclosureOfOperatingSegmentsLineItems
3231 Net sales Concept (Monetary) For Period Credit ifrs-full:RevenueFromSaleOfGoods
3232 1260 - Disclosure - Segment Information - Schedule of Reconciliation Between Business Operating Income for the Segments and Income Before Tax and Investments Accounted for Using the Equity Method (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureSegmentInformationScheduleOfReconciliationBetweenBusinessOperatingIncomeForTheSegmentsAndIncomeBeforeTaxAndInvestmentsAccountedForUsingTheEquityMethod
3233 Disclosure of operating segments [table] Table

*

*

ifrs-full:DisclosureOfOperatingSegmentsTable
3234 Segment consolidation items [axis] Axis ifrs-full:SegmentConsolidationItemsAxis
3235 Entity's total for segment consolidation items [member] Member ifrs-full:EntitysTotalForSegmentConsolidationItemsMember
3236 Operating Segments [member] Member ifrs-full:OperatingSegmentsMember
3237 Material reconciling items [member] Member ifrs-full:MaterialReconcilingItemsMember
3238 Disclosure of operating segments [line items] LineItems ifrs-full:DisclosureOfOperatingSegmentsLineItems
3239 Business operating income Concept (Monetary) For Period Credit sny:BusinessOperatingIncome
3240 Share of profit/(loss) from investments accounted for using the equity method Concept (Monetary) For Period Credit ifrs-full:ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod
3241 Net income attributable to non-controlling interests Concept (Monetary) For Period Credit ifrs-full:ProfitLossAttributableToNoncontrollingInterests
3242 Amortization and impairment of intangible assets Concept (Monetary) For Period Debit sny:AmortizationAndImpairmentOfIntangibleAssetsOtherThanGoodwill
3243 Fair value remeasurement of contingent consideration Concept (Monetary) For Period Debit sny:FairValueRemeasurementOfContingentConsideration
3244 Expenses arising from the impact of acquisitions on inventories Concept (Monetary) For Period Debit sny:ExpenseArisingFromTheImpactOfAcquisitionsOnInventories
3245 Restructuring costs and similar items Concept (Monetary) For Period Debit ifrs-full:ExpenseOfRestructuringActivities
3246 Other expenses related to business combinations Concept (Monetary) For Period Debit sny:OtherOperatingExpensesRelatedToBusinessCombinations
3247 Other gains and losses, and litigation Concept (Monetary) For Period Credit sny:OtherGainsAndLossesAndLitigation
3248 Operating income Concept (Monetary) For Period Credit ifrs-full:ProfitLossFromOperatingActivities
3249 Financial expenses Concept (Monetary) For Period Debit ifrs-full:FinanceCosts
3250 Financial income Concept (Monetary) For Period Credit ifrs-full:FinanceIncome
3251 Income before tax and investments accounted for using the equity method Concept (Monetary) For Period Credit sny:IncomeBeforeTaxAndAssociatesAndJointVentures
3252 1261 - Disclosure - Segment Information - Schedule of Reconciliation Between Business Operating Income for the Segments and Income Before Tax and Investments Accounted for Using the Equity Method (Parenthetical) (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureSegmentInformationScheduleOfReconciliationBetweenBusinessOperatingIncomeForTheSegmentsAndIncomeBeforeTaxAndInvestmentsAccountedForUsingTheEquityMethodParenthetical
3253 Disclosure of operating segments [table] Table

*

*

ifrs-full:DisclosureOfOperatingSegmentsTable
3254 Categories of Related Parties [Axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
3255 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
3256 Sanofi Pasteur MSD [member] Member sny:SanofiPasteurMSDMember
3257 Alnylam Pharmaceuticals, Inc [member] Member sny:AlnylamPharmaceuticalsIncMember
3258 Continuing and discontinued operations [axis] Axis ifrs-full:ContinuingAndDiscontinuedOperationsAxis
3259 Aggregate continuing and discontinued operations [member] Member ifrs-full:AggregateContinuingAndDiscontinuedOperationsMember
3260 European Generics Business [member] Member sny:EuropeanGenericsBusinessMember
3261 Disclosure of operating segments [line items] LineItems ifrs-full:DisclosureOfOperatingSegmentsLineItems
3262 Other costs of Divestment in Associates and Joint Ventures Concept (Monetary) For Period Debit sny:RestructuringAcquisitionAndOtherCostsOfAssociatesAndJointVentures
3263 Gain from divestiture of business Concept (Monetary) For Period Credit sny:GainLossOnDivestituresAssets
3264 Impairment loss Concept (Monetary) For Period Debit ifrs-full:ImpairmentLoss
3265 1262 - Disclosure - Segment Information - Schedule of Acquisition of Intangible Assets, Property, Plant and Equipment and Investments Accounted for Using the Equity Method by Segment (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureSegmentInformationScheduleOfAcquisitionOfIntangibleAssetsPropertyPlantAndEquipmentAndInvestmentsAccountedForUsingTheEquityMethodBySegment
3266 Disclosure of operating segments [table] Table

*

*

ifrs-full:DisclosureOfOperatingSegmentsTable
3267 Segments [axis] Axis ifrs-full:SegmentsAxis
3268 Segments [member] Member ifrs-full:SegmentsMember
3269 Pharmaceuticals [member] Member sny:PharmaceuticalsMember
3270 Consumer Healthcare segment [member] Member sny:ConsumerHealthcareSegmentMember
3271 Vaccines [member] Member sny:VaccinesMember
3272 Reportable segments [member] Member ifrs-full:ReportableSegmentsMember
3273 Segment consolidation items [axis] Axis ifrs-full:SegmentConsolidationItemsAxis
3274 Entity's total for segment consolidation items [member] Member ifrs-full:EntitysTotalForSegmentConsolidationItemsMember
3275 New segment reporting model [member] Member sny:NewSegmentReportingModelMember
3276 Previous segment reporting model [member] Member sny:PreviousSegmentReportingModelMember
3277 Disclosure of operating segments [line items] LineItems ifrs-full:DisclosureOfOperatingSegmentsLineItems
3278 Investments accounted for using the equity method Concept (Monetary) As Of Debit sny:InvestmentsInAssociatesAndJointVentures
3279 Acquisitions of property, plant and equipment Concept (Monetary) For Period Credit ifrs-full:PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities
3280 Acquisitions of other intangible assets Concept (Monetary) For Period Credit ifrs-full:PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities
3281 1263 - Disclosure - Segment Information - Summary of Geographical Information on Net Sales and Non-Current Assets (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureSegmentInformationSummaryOfGeographicalInformationOnNetSalesAndNonCurrentAssets
3282 Disclosure of geographical areas [table] Table

*

*

ifrs-full:DisclosureOfGeographicalAreasTable
3283 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
3284 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
3285 Reportable geographical zones [member] Member sny:ReportableGeographicalZonesMember
3286 Europe [member] Member us-gaap:EuropeMember
3287 France [member] Member country:FR
3288 North America [member] Member us-gaap:NorthAmericaMember
3289 US [member] Member country:US
3290 Other countries [member] Member sny:OtherCountriesMember
3291 Disclosure of geographical areas [line items] LineItems ifrs-full:DisclosureOfGeographicalAreasLineItems
3292 Net sales Concept (Monetary) For Period Credit ifrs-full:RevenueFromSaleOfGoods
3293 Property, plant and equipment Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
3294 Goodwill Concept (Monetary) As Of Debit ifrs-full:Goodwill
3295 Other intangible assets Concept (Monetary) As Of Debit ifrs-full:IntangibleAssetsOtherThanGoodwill
3296 1264 - Disclosure - Exchanged/Held-For-Exchange Animal Health Business - Summary of Assets and Liabilities Held for Sale or Exchange (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureExchangedHeldForExchangeAnimalHealthBusinessSummaryOfAssetsAndLiabilitiesHeldForSaleOrExchange
3297 Disclosure of Assets Held for Sale [Table] Table

*

*

sny:DisclosureOfAssetsHeldForSaleTable
3298 Continuing and discontinued operations [axis] Axis ifrs-full:ContinuingAndDiscontinuedOperationsAxis
3299 Aggregate continuing and discontinued operations [member] Member ifrs-full:AggregateContinuingAndDiscontinuedOperationsMember
3300 Animal Health Business [member] Member sny:AnimalHealthBusinessMember
3301 Disclosure of assets held for sale [line items] LineItems sny:DisclosureOfAssetsHeldForSaleLineItems
3302 Assets Abstract ifrs-full:AssetsAbstract
3303 Property, plant and equipment Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
3304 Goodwill Concept (Monetary) As Of Debit ifrs-full:Goodwill
3305 Other intangible assets Concept (Monetary) As Of Debit ifrs-full:IntangibleAssetsOtherThanGoodwill
3306 Investments accounted for using the equity method Concept (Monetary) As Of Debit ifrs-full:InvestmentAccountedForUsingEquityMethod
3307 Other non-currentassets Concept (Monetary) As Of Debit ifrs-full:OtherNoncurrentAssets
3308 Deferred tax assets Concept (Monetary) As Of Debit ifrs-full:DeferredTaxAssets
3309 Inventories Concept (Monetary) As Of Debit ifrs-full:Inventories
3310 Accounts receivable Concept (Monetary) As Of Debit ifrs-full:CurrentTradeReceivables
3311 Other current assets Concept (Monetary) As Of Debit ifrs-full:OtherCurrentAssets
3312 Cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
3313 Total assets held for sale or exchange Concept (Monetary) As Of Debit ifrs-full:NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSale
3314 Liabilities Abstract ifrs-full:LiabilitiesAbstract
3315 Long-term debt Concept (Monetary) As Of Credit ifrs-full:LongtermBorrowings
3316 Non-current provisions Concept (Monetary) As Of Credit sny:NoncurrentProvisionsAndOtherNoncurrentLiabilities
3317 Deferred tax liabilities Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilities
3318 Current debt Concept (Monetary) As Of Credit ifrs-full:CurrentBorrowingsAndCurrentPortionOfNoncurrentBorrowings
3319 Accounts payable Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherCurrentPayablesToTradeSuppliers
3320 Other current liabilities Concept (Monetary) As Of Credit ifrs-full:OtherCurrentLiabilities
3321 Total liabilities related to assets held for sale or exchange Concept (Monetary) As Of Credit ifrs-full:LiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSale
3322 1265 - Disclosure - Exchanged/Held-For-Exchange Animal Health Business - Additional Information (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureExchangedHeldForExchangeAnimalHealthBusinessAdditionalInformation
3323 Disclosure of Assets Held for Sale [Table] Table

*

*

sny:DisclosureOfAssetsHeldForSaleTable
3324 Continuing and discontinued operations [axis] Axis ifrs-full:ContinuingAndDiscontinuedOperationsAxis
3325 Aggregate continuing and discontinued operations [member] Member ifrs-full:AggregateContinuingAndDiscontinuedOperationsMember
3326 Animal Health Business [member] Member sny:AnimalHealthBusinessMember
3327 Disclosure of assets held for sale [line items] LineItems sny:DisclosureOfAssetsHeldForSaleLineItems
3328 Short-term debt Concept (Monetary) As Of Credit ifrs-full:ShorttermBorrowings
3329 1266 - Disclosure - Exchanged/Held-For-Exchange Animal Health Business - Summary of Main Items Included in Net Income/(Loss) of Held-for-Exchange Animal Health Business (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureExchangedHeldForExchangeAnimalHealthBusinessSummaryOfMainItemsIncludedInNetIncomeLossOfHeldforExchangeAnimalHealthBusiness
3330 Disclosure of Net Income Loss of Held for Exchange Animal Health Business [Table] Table

*

*

sny:DisclosureOfNetIncomeLossOfHeldForExchangeAnimalHealthBusinessTable
3331 Continuing and discontinued operations [axis] Axis ifrs-full:ContinuingAndDiscontinuedOperationsAxis
3332 Aggregate continuing and discontinued operations [member] Member ifrs-full:AggregateContinuingAndDiscontinuedOperationsMember
3333 Animal Health Business [member] Member sny:AnimalHealthBusinessMember
3334 Disclosure of net income loss of held for exchange animal health business [line items] LineItems sny:DisclosureOfNetIncomeLossOfHeldForExchangeAnimalHealthBusinessLineItems
3335 Net sales Concept (Monetary) For Period Credit ifrs-full:RevenueFromSaleOfGoods
3336 Gross profit Concept (Monetary) For Period Credit ifrs-full:GrossProfit
3337 Operating income Concept (Monetary) For Period Credit ifrs-full:ProfitLossFromOperatingActivities
3338 Income before tax and investments accounted for using the equity method Concept (Monetary) For Period Credit sny:IncomeBeforeTaxAndInvestmentsAccountedForUsingEquityMethod
3339 Income tax expense Concept (Monetary) For Period Debit sny:IncomeTaxExpenseDiscontinuedOperations
3340 Net income/(loss) of the exchanged/held-for-exchange Animal Health business Concept (Monetary) For Period Credit ifrs-full:ProfitLossFromDiscontinuedOperations
3341 1267 - Disclosure - Exchanged/Held-For-Exchange Animal Health Business - Summary of Main Items Included in Net Income/(Loss) of Held-for-Exchange Animal Health Business (Parenthetical) (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureExchangedHeldForExchangeAnimalHealthBusinessSummaryOfMainItemsIncludedInNetIncomeLossOfHeldforExchangeAnimalHealthBusinessParenthetical
3342 Disclosure of Net Income Loss of Held for Exchange Animal Health Business [Table] Table

*

*

sny:DisclosureOfNetIncomeLossOfHeldForExchangeAnimalHealthBusinessTable
3343 Business Combinations [Axis] Axis ifrs-full:BusinessCombinationsAxis
3344 Entity's total for business combinations [member] Member ifrs-full:EntitysTotalForBusinessCombinationsMember
3345 Boehringer Ingelheim's Consumer Healthcare business [member] Member sny:BoehringerIngelheimConsumerHealthcareBusinessMember
3346 Disclosure of net income loss of held for exchange animal health business [line items] LineItems sny:DisclosureOfNetIncomeLossOfHeldForExchangeAnimalHealthBusinessLineItems
3347 Consideration received Concept (Monetary) For Period Credit ifrs-full:ConsiderationPaidReceived
3348 1268 - Disclosure - Exchanged/Held-For-Exchange Animal Health Business - Summary of Basic and Diluted Earnings Per Share for Held-for-Exchange Animal Health Business (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosureExchangedHeldForExchangeAnimalHealthBusinessSummaryOfBasicAndDilutedEarningsPerShareForHeldforExchangeAnimalHealthBusiness
3349 Disclosure of Earnings Per Share for Held for Exchange Animal Health Business [Table] Table

*

*

sny:DisclosureOfEarningsPerShareForHeldForExchangeAnimalHealthBusinessTable
3350 Continuing and discontinued operations [axis] Axis ifrs-full:ContinuingAndDiscontinuedOperationsAxis
3351 Aggregate continuing and discontinued operations [member] Member ifrs-full:AggregateContinuingAndDiscontinuedOperationsMember
3352 Animal Health Business [member] Member sny:AnimalHealthBusinessMember
3353 Disclosure of basic and diluted earnings per share for the exchanged/held-for-exchange Animal Health business [line items] LineItems sny:DisclosureOfEarningsPerShareForHeldForExchangeAnimalHealthBusinessLineItems
3354 Net income/(loss) of the exchanged/held-for-exchange Animal Health business Concept (Monetary) For Period Credit ifrs-full:ProfitLossFromDiscontinuedOperations
3355 Average number of shares outstanding Concept (Shares) For Period ifrs-full:WeightedAverageShares
3356 Average number of shares after dilution Concept (Shares) For Period ifrs-full:AdjustedWeightedAverageShares
3357 Basic earnings per share Concept (Share) For Period ifrs-full:BasicEarningsLossPerShare
3358 Diluted earnings per share Concept (Share) For Period ifrs-full:DilutedEarningsLossPerShare
3359 1269 - Disclosure - Principal Accountants' Fees and Services - Disclosure of Accountants' Fees and Services (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosurePrincipalAccountantsFeesAndServicesDisclosureOfAccountantsFeesAndServices
3360 Disclosure of audit fees and other services [Table] Table

*

*

sny:DisclosureOfAuditFeesAndOtherServicesTable
3361 Legal Entity [Axis] Axis dei:LegalEntityAxis
3362 Entity [Domain] Member dei:EntityDomain
3363 Ernst and Young [member] Member sny:ErnstAndYoungMember
3364 Price Water House Coopers [member] Member sny:PricewaterhousecoopersMember
3365 Auditors Name [Axis] Axis sny:AuditorsNameAxis
3366 Auditors Name [Member] Member sny:AuditorsNameMember
3367 Ernst and Young [member] Member sny:ErnstAndYoungMember
3368 Price Water House Coopers [member] Member sny:PricewaterhousecoopersMember
3369 Disclosure of audit fees and other services [line items] LineItems sny:DisclosureOfAuditFeesAndOtherServicesLineItems
3370 Statutory audit of separate and consolidated financial statements Concept (Percent) For Period sny:PercentageOfAuditorRemunerationForStatutoryAudit
3371 Services other than statutory audit Concept (Percent) For Period sny:PercentageOfAuditorsRemunerationForServicesOtherThanAuditOfFinancialStatements
3372 Auditor's remuneration, Total Percentage Concept (Percent) For Period sny:PercentageOfAuditorsRemuneration
3373 Statutory audit of separate and consolidated financial statements Concept (Monetary) For Period Debit ifrs-full:AuditorsRemunerationForAuditServices
3374 Services other than statutory audit Concept (Monetary) For Period Debit sny:Servicesotherthanstatutoryaudit
3375 Audit-related services Concept (Monetary) For Period Debit sny:AuditorsRemunerationForAuditRelatedServices
3376 Tax Concept (Monetary) For Period Debit ifrs-full:AuditorsRemunerationForTaxServices
3377 Other Concept (Monetary) For Period Debit ifrs-full:AuditorsRemunerationForOtherServices
3378 Total Concept (Monetary) For Period Debit ifrs-full:AuditorsRemuneration
3379 1270 - Disclosure - Principal Accountants' Fees and Services - Disclosure of Accountants' Fees and Services (Parenthetical) (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosurePrincipalAccountantsFeesAndServicesDisclosureOfAccountantsFeesAndServicesParenthetical
3380 Disclosure of audit fees and other services [Table] Table

*

*

sny:DisclosureOfAuditFeesAndOtherServicesTable
3381 Auditors Name [Axis] Axis sny:AuditorsNameAxis
3382 Auditors Name [Member] Member sny:AuditorsNameMember
3383 Ernst and Young [member] Member sny:ErnstAndYoungMember
3384 Price Water House Coopers [member] Member sny:PricewaterhousecoopersMember
3385 Disclosure of audit fees and other services [line items] LineItems sny:DisclosureOfAuditFeesAndOtherServicesLineItems
3386 Audit of the financial statements of the parent company and its French subsidiaries Concept (Monetary) For Period Debit sny:AuditOfTheFinancialStatementsOfTheParentCompanyAndItsFrenchSubsidiaries
3387 Audit-related services charged to the parent company and its French subsidiaries Concept (Monetary) For Period Debit sny:AuditrelatedServicesChargedToTheParentCompanyAndItsFrenchSubsidiaries
3388 1271 - Disclosure - Principal Fully Consolidated Companies - Summary of Principal Companies and their Country of Incorporation (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosurePrincipalFullyConsolidatedCompaniesSummaryOfPrincipalCompaniesAndTheirCountryOfIncorporation
3389 Disclosure of Subsidiaries [Table] Table

*

*

ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesTable
3390 Subsidiaries [axis] Axis ifrs-full:SignificantInvestmentsInSubsidiariesAxis
3391 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
3392 Hoechst GmbH [member] Member sny:HoechstGmbHMember
3393 Sanofi Aventis Deutschland GmbH [member] Member sny:SanofiAventisDeutschlandGmbHMember
3394 Aventis Beteiligungsverwaltung Gmbh [member] Member sny:AventisBeteiligungsverwaltungGmbHMember
3395 Sanofi Aventis GmbH [member] Member sny:SanofiAventisGmbHMember
3396 Sanofi Belgium [member] Member sny:SanofiBelgiumMember
3397 Sanofi European Treasury Center [member] Member sny:SanofiEuropeanTreasuryCenterMember
3398 Ablynx N.V [member] Member sny:AblynxMember
3399 Genzyme Flanders BVBA [member] Member sny:GenzymeFlandersBVBAMember
3400 Sanofi-Aventis Denmark A/S [member] Member sny:SanofiaventisDenmarkASMember
3401 Sanofi-Aventis SA [member] Member sny:SanofiAventisSAMember
3402 Sanofi Oy [member] Member sny:SanofiOyMember
3403 Sanofi [member] Member sny:SanofiMember
3404 Sanofi-Aventis France [member] Member sny:SanofiAventisFranceMember
3405 Sanofi Winthrop Industries [member] Member sny:SanofiWinthropIndustriesMember
3406 Sanofi Aventis Recherche et Developpement [member] Member sny:SanofiAventisRechercheEtDveloppementMember
3407 Sanofi-Aventis Groupe [member] Member sny:SanofiAventisGroupeMember
3408 Sanofi CLIR [member] Member sny:SanofiClirMember
3409 Sanofi Chimie [member] Member sny:SanofiChimieMember
3410 Francopia [member] Member sny:FrancopiaMember
3411 Sanofi-Aventis Participations SAS [member] Member sny:SanofiAventisParticipationsSASMember
3412 Genzyme Polyclonals SAS [member] Member sny:GenzymePolyclonalsSASMember
3413 Sanofi Pasteur (France) SA [Member] Member sny:SanofiPasteurFranceSAMember
3414 Aventis Pharma S.A. France [member] Member sny:AventisPharmaSAFranceMember
3415 Aventis Agriculture [member] Member sny:AventisAgricultureMember
3416 Biopark By Sanofi [member] Member sny:BioparkBySanofiMember
3417 Chattem Greece S.A. [member] Member sny:ChattemGreeceSAMember
3418 Sanofi-Aventis A.E.B.E. [member] Member sny:SanofiaventisAEBEMember
3419 Sanofi-Aventis Private Co, Ltd [member] Member sny:SanofiAventisPrivateCoLtdMember
3420 Chinoin Private Co. Ltd [member] Member sny:ChinoinPrivateCoLtdMember
3421 Carraig Insurance DAC [member] Member sny:CarraigInsuranceDACMember
3422 Sanofi-Aventis Ireland Ltd [member] Member sny:SanofiAventisIrelandLtdMember
3423 Genzyme Ireland Limited [member] Member sny:GenzymeIrelandLimitedMember
3424 Sanofi Spa [member] Member sny:SanofiSpaMember
3425 Genzyme Global Sarl [member] Member sny:GenzymeGlobalSarlMember
3426 Sanofi-Aventis Norge AS [member] Member sny:SanofiAventisNorgeASMember
3427 Sanofi-Aventis Netherlands B.V. [member] Member sny:SanofiAventisNetherlandsBVMember
3428 Genzyme Europe BV [member] Member sny:GenzymeEuropeBVMember
3429 Sanofi-Aventis Sp. z.o.o. [member] Member sny:SanofiaventisSpZooMember
3430 Sanofi Produtos Farmaceuticos Lda [member] Member sny:SanofiProdutosFarmaceuticosLdaMember
3431 Sanofi-Aventis, s.r.o. [member] Member sny:SanofiaventissroMember
3432 Sanofi-Aventis Romania SRL [member] Member sny:SanofiAventisRomaniaSRLMember
3433 Sanofi-Synthelabo Ltd [member] Member sny:SanofiSynthelaboLtdMember
3434 Sanofi Pasteur Holding Limited [member] Member sny:SanofiPasteurHoldingLimitedMember
3435 Chattem Limited (UK) [member] Member sny:ChattemLimitedUkMember
3436 Sanofi-Aventis UK Holdings Limited [member] Member sny:SanofiAventisUkHoldingsLimitedMember
3437 Genzyme Limited [member] Member sny:GenzymeLimitedMember
3438 May and Baker Limited [member] Member sny:MayAndBakerLimitedMember
3439 Aventis Pharma Limited [member] Member sny:AventisPharmaLimitedMember
3440 Fisons Limited [member] Member sny:FisonsLimitedMember
3441 Limited Liability Zentiva Pharma [member] Member sny:LimitedLiabilityZentivaPharmaMember
3442 Sanofi-Aventis Vostok [member] Member sny:SanofiAventisVostokMember
3443 AO Sanofi Russia [member] Member sny:AOSanofiRussiaMember
3444 Sanofi-Aventis Pharma Slovakia s.r.o. [member] Member sny:SanofiAventisPharmaSlovakiaSROMember
3445 Sanofi AB [member] Member sny:SanofiABMember
3446 Sanofi SA (Sanofi AG) [member] Member sny:SanofiSASanofiAGMember
3447 Sanofi-Aventis (Suisse) SA [member] Member sny:SanofiAventisSuisseSAMember
3448 Pharmaton [member] Member sny:PharmatonMember
3449 Sanofi Ilac Sanayi ve Ticaret A.S. [member] Member sny:SanofiIlacSanayiVeTicaretASMember
3450 Sanofi Pasteur Asi Ticaret A.S [member] Member sny:SanofiPasteurAsiTicaretASMember
3451 Sanofi Aventis Ukraine [member] Member sny:SanofiAventisUkraineMember
3452 Sanofi US Services Inc [member] Member sny:SanofiUSServicesIncMember
3453 Sanofi-Aventis US LLC [member] Member sny:SanofiAventisUSLLCMember
3454 Sanofi Pasteur Biologics, LLC [member] Member sny:SanofiPasteurBiologicsLLCMember
3455 Chattem, Inc. [member] Member sny:ChattemIncMember
3456 Sanofi Pasteur VaxDesign Corporation [member] Member sny:SanofiPasteurVaxDesignCorporationMember
3457 Carderm Capital L.P. [member] Member sny:CardermCapitalLPMember
3458 Aventisub LLC [member] Member sny:AventisubLLCMember
3459 Genzyme Corporation [member] Member sny:GenzymeCorporationMember
3460 Armour Pharmaceutical Company [member] Member sny:ArmourPharmaceuticalCompanyMember
3461 Sanofi Pasteur Inc. [member] Member sny:SanofiPasteurIncMember
3462 Protein Sciences Corporation [member] Member sny:ProteinSciencesCorporationMember
3463 Aventis Inc. [member] Member sny:AventisIncMember
3464 VaxServe, Inc. [member] Member sny:VaxServeIncMember
3465 Sanofi Aventis N A Holding [member] Member sny:SanofiAventisNAHoldingMember
3466 Bioverativ Inc. [member] Member sny:BioverativIncMember
3467 Bioverativ USA Inc. [member] Member sny:BioverativUSAIncMember
3468 Bioverativ Therapeutics Inc. [member] Member sny:BioverativTherapeuticsIncMember
3469 Bioverativ Securities Corporation. [member] Member sny:BioverativSecuritiesCorporationMember
3470 Bioverativ US LLC [member] Member sny:BioverativUSLLCMember
3471 Bioverativ Pacific LLC [member] Member sny:BioverativPacificLLCMember
3472 Sanofi industries South Africa Pty Ltd [member] Member sny:SanofiIndustriesSouthAfricaPtyLtdMember
3473 Zentiva South Africa (Pty) Ltd [member] Member sny:ZentivaSouthAfricaPtyLtdMember
3474 Sanofi-Aventis Algerie [member] Member sny:SanofiAventisAlgerieMember
3475 Winthrop Pharma Saidal SPA [member] Member sny:WinthropPharmaSaidalSPAMember
3476 Sanofi-Aventis Argentina S.A. [member] Member sny:SanofiAventisArgentinaSAMember
3477 Genzyme de Argentina SA [member] Member sny:GenzymeDeArgentinaSAMember
3478 Sanofi-Aventis Healthcare Pty Ltd [member] Member sny:SanofiAventisHealthcarePtyLtdMember
3479 Sanofi-Aventis Australia Pty Ltd [member] Member sny:SanofiAventisAustraliaPtyLtdMember
3480 Bioverativ Australia Pty Ltd [member] Member sny:BioverativAustraliaPtyLtdMember
3481 Medley Farmaceutica Ltda [member] Member sny:MedleyFarmaceuticaLtdaMember
3482 Sanofi Aventis Farmaceutica Ltda [member] Member sny:SanofiAventisFarmaceuticaLtdaMember
3483 Sanofi-Aventis Canada Inc. [member] Member sny:SanofiAventisCanadaIncMember
3484 Sanofi Consumer Health Inc [member] Member sny:SanofiConsumerHealthIncMember
3485 Sanofi Pasteur Limited (Canada) [member] Member sny:SanofiPasteurLimitedCanadaMember
3486 Bioverativ Canada Inc. [member] Member sny:SanofiBioverativeMember
3487 Sanofi-Aventis de Chile SA [member] Member sny:SanofiAventisDeChileSAMember
3488 Sanofi (Hangzhou) Pharmaceuticals Co., Ltd [member] Member sny:SanofiHangzhouPharmaceuticalsCoLtdMember
3489 Sanofi (China) Investment Co., Ltd [member] Member sny:SanofiChinaInvestmentCoLtdMember
3490 Sanofi Beijing Pharmaceuticals Co.Ltd [member] Member sny:SanofiBeijingPharmaceuticalsCoLtdMember
3491 Shenzhen Sanofi Pasteur Biological Products Co, Ltd [member] Member sny:ShenzhenSanofiPasteurBiologicalProductsCoLtdMember
3492 Winthrop Pharmaceuticals de Colombia SA [member] Member sny:WinthropPharmaceuticalsDeColombiaSAMember
3493 Genfar S.A. [member] Member sny:GenfarSAMember
3494 Sanofi-Aventis de Colombia S.A [member] Member sny:SanofiAventisDeColombiaSAMember
3495 Sanofi-Aventis Korea Co. Ltd [member] Member sny:SanofiAventisKoreaCoLtdMember
3496 Genzyme Korea Co Ltd [member] Member sny:GenzymeKoreaCoLtdMember
3497 Sanofi-Aventis Gulf FZE [member] Member sny:SanofiAventisGulfFZEMember
3498 Sanofi Aventis del Ecuador S.A [member] Member sny:SanofiAventisDelEcuadorSAMember
3499 Sanofi Egypt S.A.E [member] Member sny:SanofiEgyptSAEMember
3500 Sanofi-Aventis de Guatemala S.A. [member] Member sny:SanofiAventisDeGuatemalaSAMember
3501 Sunstone China Limited [member] Member sny:SunstoneChinaLimitedMember
3502 Sanofi-Aventis Hong-Kong Limited [member] Member sny:SanofiaventisHongkongLimitedMember
3503 Sanofi-Synthelabo (India) Private Ltd [member] Member sny:SanofiSynthelaboIndiaPrivateLtdMember
3504 Sanofi India Limited [member] Member sny:SanofiIndiaLimitedMember
3505 Shantha Biotechnics Private Ltd [member] Member sny:ShanthaBiotechnicsPrivateLtdMember
3506 PT Aventis Pharma [member] Member sny:PTAventisPharmaMember
3507 Sanofi-Aventis Israel Ltd [member] Member sny:SanofiAventisIsraelLtdMember
3508 Sanofi K.K [member] Member sny:SanofiKKMember
3509 SSP Co., Ltd [member] Member sny:SspCoLtdMember
3510 Bioverativ Japan Ltd [member] Member sny:BioverativJapanLtdMember
3511 Winthrop Pharmaceuticals (Malaysia) SDN. BHD. [member] Member sny:WinthropPharmaceuticalsMalaysiaSDNBHDMember
3512 Sanofi-Aventis (Malaysia) SDN. BHD. [member] Member sny:SanofiAventisMalaysiaSDNBHDMember
3513 Sanofi-Aventis Maroc [member] Member sny:SanofiAventisMarocMember
3514 Sanofi-Aventis de Mexico S.A de CV [member] Member sny:SanofiAventisDeMexicoSADeCVMember
3515 Sanofi-Aventis Winthrop SA de CV [member] Member sny:SanofiaventisWinthropSADeCVMember
3516 Sanofi Pasteur SA de CV [member] Member sny:SanofiPasteurSaDeCvMember
3517 Sanofi-Aventis Pakistan Ltd [member] Member sny:SanofiAventisPakistanLtdMember
3518 Sanofi-Aventis de Panama S.A. [member] Member sny:SanofiAventisDePanamaSAMember
3519 Sanofi-Aventis Latin America SA [member] Member sny:SanofiAventisLatinAmericaSAMember
3520 Sanofi-Aventis del Peru SA [member] Member sny:SanofiAventisDelPeruSAMember
3521 Sanofi-Aventis Philippines Inc [member] Member sny:SanofiAventisPhilippinesIncMember
3522 Sanofi-Aventis de la Republica Dominicana S.A. [member] Member sny:SanofiAventisDeLaRepublicaDominicanaSAMember
3523 Sanofi-Aventis Singapore Pte Ltd [member] Member sny:SanofiAventisSingaporePteLtdMember
3524 Aventis Pharma (Manufacturing) PTE LTD [member] Member sny:AventisPharmaManufacturingPTELTDMember
3525 Sanofi Taiwan Co Ltd [member] Member sny:SanofiTaiwanCoLtdMember
3526 Sanofi Winthrop (Thailand) Ltd [member] Member sny:SanofiWinthropThailandLtdMember
3527 Sanofi-Aventis Thailand Ltd [member] Member sny:SanofiAventisThailandLtdMember
3528 Sanofi-Aventis Pharma Tunisie [member] Member sny:SanofiAventisPharmaTunisieMember
3529 Winthrop Pharma Tunisia [member] Member sny:WinthropPharmaTunisiaMember
3530 Sanofi-Aventis de Venezuela SA [member] Member sny:SanofiAventisDeVenezuelaSAMember
3531 Sanofi-Synthelabo Vietnam [member] Member sny:SanofisynthelaboVietnamMember
3532 Sanofi Vietnam Shareholding Company [member] Member sny:SanofiVietnamShareholdingCompanyMember
3533 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
3534 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
3535 Europe [member] Member us-gaap:EuropeMember
3536 US [member] Member country:US
3537 Other countries [member] Member sny:OtherCountriesMember
3538 Disclosure of subsidiaries [line items] LineItems ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesLineItems
3539 Principal Companies Concept (Text/String) For Period ifrs-full:NameOfSubsidiary
3540 Country Concept (Text/String) For Period ifrs-full:CountryOfIncorporationOrResidenceOfSubsidiary
3541 Financial interest Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestInSubsidiary
3542 1272 - Disclosure - Principal Associates and Joint Ventures - Summary of Principal Investments Accounted for Using the Equity Method (Detail) Network

*

*

http://imetrix.edgar-online.com/taxonomy/role/DisclosurePrincipalAssociatesAndJointVenturesSummaryOfPrincipalInvestmentsAccountedForUsingTheEquityMethod
3543 Disclosure of Joint Operations [Table] Table

*

*

ifrs-full:DisclosureOfJointOperationsTable
3544 Joint Operations [Axis] Axis ifrs-full:JointOperationsAxis
3545 Entity's Total for Joint Operations [Member] Member ifrs-full:EntitysTotalForJointOperationsMember
3546 Infraserv Gmbh and Co Hochst KG [member] Member sny:InfraservGmbhAndCoHochstKGMember
3547 Bristol-Myers Squibb / Sanofi Canada Partnership [member] Member sny:BristolmyersSquibbSanofiCanadaPartnershipMember
3548 China Resources Sanjiu Sanofi Consumer Healthcare Ltd [member] Member sny:ChinaResourcesSanjiuSanofiConsumerHealthcareLtdMember
3549 Bristol-Myers Squibb / Sanofi Pharmaceuticals Holding Partnership [member] Member sny:BristolmyersSquibbSanofiPharmaceuticalsHoldingPartnershipMember
3550 Bristol-Myers Squibb / Sanofi Pharmaceuticals Partnership [member] Member sny:BristolmyersSquibbSanofiPharmaceuticalsPartnershipMember
3551 Bristol-Myers Squibb / Sanofi Pharmaceuticals Partnership Puerto Rico [member] Member sny:BristolmyersSquibbSanofiPharmaceuticalsPartnershipPuertoRicoMember
3552 Bristol-Myers Squibb / Sanofi-Synthelabo Partnership [member] Member sny:BristolmyersSquibbSanofisynthelaboPartnershipMember
3553 Bristol-Myers Squibb / Sanofi-Synthelabo Puerto Rico Partnership [member] Member sny:BristolmyersSquibbSanofisynthlaboPuertoRicoPartnershipMember
3554 Regeneron Pharmaceuticals, Inc. [member] Member sny:RegeneronPharmaceuticalsIncMember
3555 Onduo LLC [member] Member sny:OnduoLLCMember
3556 GlaxoSmithKline Consumer Healthcare, L.P [member] Member sny:GlaxoSmithKlineConsumerHealthCareLPMember
3557 MCM Vaccine Co. [member] Member sny:MCMVaccineCoMember
3558 MCM Vaccine BV [member] Member sny:MCMVaccineBVMember
3559 Maphar [member] Member sny:MapharMember
3560 Disclosure of joint operations [line Items] LineItems ifrs-full:DisclosureOfJointOperationsLineItems
3561 Name of joint operation Concept (Text/String) For Period ifrs-full:NameOfJointOperation
3562 Country of incorporation of joint operation Concept (Text/String) For Period ifrs-full:CountryOfIncorporationOfJointOperation
3563 Proportion of ownership interest in joint operation Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestInJointOperation

*

*