XML 217 R171.htm IDEA: XBRL DOCUMENT
v3.24.0.1

Provisions, income tax liabilities and other liabilities - Net Liability in Respect of Pension Plans and Other Post-employment Benefits by Geographical Region (Details) - EUR (€) € in Millions | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | --- | ---
Disclosure of net defined benefit liability (asset) [line items] |  |  |
Measurement of obligation | € 968 | € 1,039 | € 943
Pensions and other post-employment benefits |  |  |
Disclosure of net defined benefit liability (asset) [line items] |  |  |
Measurement of obligation | 8,930 | 8,651 | 12,175
Fair value of plan assets | 6,993 | 6,899 | 9,651
Effect of asset ceiling | (6) | (18) | (15)
Net amount shown in the balance sheet at end of period | 1,943 | 1,770 | 2,539
France |  |  |
Disclosure of net defined benefit liability (asset) [line items] |  |  |
Measurement of obligation | 611 | 804 | 614
France | Pensions and other post-employment benefits |  |  |
Disclosure of net defined benefit liability (asset) [line items] |  |  |
Measurement of obligation | 1,322 | 1,324 | 1,657
Fair value of plan assets | 675 | 697 | 838
Effect of asset ceiling | 0 | 0 | 0
Net amount shown in the balance sheet at end of period | 647 | 627 | 819
Germany | Pensions and other post-employment benefits |  |  |
Disclosure of net defined benefit liability (asset) [line items] |  |  |
Measurement of obligation | 2,911 | 2,730 | 3,576
Fair value of plan assets | 2,401 | 2,317 | 2,808
Effect of asset ceiling | 0 | 0 | 0
Net amount shown in the balance sheet at end of period | 510 | 413 | 768
US | Pensions and other post-employment benefits |  |  |
Disclosure of net defined benefit liability (asset) [line items] |  |  |
Measurement of obligation | 1,528 | 1,546 | 2,099
Fair value of plan assets | 825 | 860 | 1,127
Effect of asset ceiling | 0 | 0 | 0
Net amount shown in the balance sheet at end of period | 703 | 686 | 972
UK | Pensions and other post-employment benefits |  |  |
Disclosure of net defined benefit liability (asset) [line items] |  |  |
Measurement of obligation | 2,174 | 2,080 | 3,414
Fair value of plan assets | 2,235 | 2,175 | 3,629
Effect of asset ceiling | 0 | 0 | 0
Net amount shown in the balance sheet at end of period | (61) | (95) | (215)
Other |  |  |
Disclosure of net defined benefit liability (asset) [line items] |  |  |
Measurement of obligation | 357 | 235 | 329
Other | Pensions and other post-employment benefits |  |  |
Disclosure of net defined benefit liability (asset) [line items] |  |  |
Measurement of obligation | 995 | 971 | 1,429
Fair value of plan assets | 857 | 850 | 1,249
Effect of asset ceiling | (6) | (18) | (15)
Net amount shown in the balance sheet at end of period | € 144 | € 139 | € 195

X
- Definition The present value, without deducting any plan assets, of expected future payments required to settle the obligation resulting from employee service in the current and prior periods. [Refer: Plan assets, at fair value] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 19 -IssueDate 2023-01-01 -Paragraph 57 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2023-en-r&anchor=para_57_a&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_DefinedBenefitObligationAtPresentValue
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- 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_DisclosureOfNetDefinedBenefitLiabilityAssetLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of deficit or surplus in a defined benefit plan, adjusted for any effect of limiting a net defined benefit asset to the asset ceiling. [Refer: Defined benefit plans [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2023-01-01 -Paragraph 140 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2023-en-r&anchor=para_140_a&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_LiabilityAssetOfDefinedBenefitPlans
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The fair value of defined benefit plan assets. Plan assets comprise assets held by a long-term employee benefit fund and qualifying insurance policies. [Refer: At fair value [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 19 -IssueDate 2023-01-01 -Paragraph 57 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2023-en-r&anchor=para_57_a&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_PlanAssetsAtFairValue
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Plan Assets, Effect Of Asset Ceiling + References No definition available. + Details
Name: | sny_PlanAssetsEffectOfAssetCeiling
Namespace Prefix: | sny_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | ifrs-full_DefinedBenefitPlansAxis=sny_PensionsAndOtherPostEmploymentBenefitsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_GeographicalAreasAxis=country_FR
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_GeographicalAreasAxis=country_DE
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_GeographicalAreasAxis=country_US
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_GeographicalAreasAxis=country_GB
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_GeographicalAreasAxis=sny_OtherCountriesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |