XML 140 R96.htm IDEA: XBRL DOCUMENT
v3.22.4

Principal alliances - Alliance Arrangements with Bristol-Myers Squibb (Details) $ in Millions |  | 1 Months Ended | 12 Months Ended
--- | --- | --- | ---
Feb. 28, 2020 USD ($) | Dec. 31, 2018 USD ($) | Dec. 31, 2022 product
Entities and companies managed by Bristol Mayers Squibb |  |  |
Disclosure of Principal Alliances [Line Items] |  |  |
Percentage of voting equity interests acquired | 50.10% |  |
Purchase of interests in investments accounted for using equity method | $ 12 |  |
Bristol-Myers Squibb |  |  |
Disclosure of Principal Alliances [Line Items] |  |  |
Number of leading products jointly developed | product |  |  | 2
Royalty payment to be paid by Sanofi |  | $ 200 |

X
- Definition The percentage of voting equity interests acquired in a business combination. [Refer: Business combinations [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 3 -IssueDate 2021-01-01 -Paragraph B64 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2021-en-r&anchor=para_B64_c&doctype=Appendix&subtype=B -URIDate 2021-03-24 + Details
Name: | ifrs-full_PercentageOfVotingEquityInterestsAcquired
Namespace Prefix: | ifrs-full_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The cash outflow for the purchase of interests in investments accounted for using the equity method. [Refer: Investments accounted for using equity method] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 7 -IssueDate 2021-01-01 -Paragraph 16 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2021-en-r&anchor=para_16&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_PurchaseOfInterestsInInvestmentsAccountedForUsingEquityMethod
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Disclosure of Principal Alliances [Line Items] + References No definition available. + Details
Name: | sny_DisclosureOfPrincipalAlliancesLineItems
Namespace Prefix: | sny_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of products jointly developed. + References No definition available. + Details
Name: | sny_NumberOfProductsJointlyDeveloped
Namespace Prefix: | sny_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Royalties payments made by sanofi. + References No definition available. + Details
Name: | sny_RoyaltiesPaymentsMadeBySanofi
Namespace Prefix: | sny_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=sny_EntitiesAndCompaniesManagedByBristolMyersSquibbMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CounterpartiesAxis=sny_BristolMyersSquibbMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |