XML 152 R106.htm IDEA: XBRL DOCUMENT
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Property, plant and equipment - Additional Information (Details) - EUR (€) € in Millions | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Expense relating to short-term leases and low value assets | € 19 | € 26 | € 25
Cash outflow for leases, excluding short-term leases | € 315 | € 389 | € 302
Office and industrial premises |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Leased assets, percentage | 90.00% |  |
Vehicle fleet |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Leased assets, percentage | 10.00% |  |

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- Definition The cash outflow for leases. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2023-01-01 -Paragraph 53 -Subparagraph g -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2023-en-r&anchor=para_53_g&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_CashOutflowForLeases
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table. + References No definition available. + Details
Name: | ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Expense Relating To Short-term Leases And Low Value Assets For Which Recognition Exemption Has Been Used + References No definition available. + Details
Name: | sny_ExpenseRelatingToShortTermLeasesAndLowValueAssetsForWhichRecognitionExemptionHasBeenUsed
Namespace Prefix: | sny_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Leased Assets, Percentage + References No definition available. + Details
Name: | sny_LeasedAssetsPercentage
Namespace Prefix: | sny_
Data Type: | dtr-types1:percentItemType
Balance Type: | na
Period Type: | instant

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- Details
Name: | ifrs-full_ClassesOfAssetsAxis=ifrs-full_LandAndBuildingsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | ifrs-full_ClassesOfAssetsAxis=ifrs-full_VehiclesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |