XML 216 R170.htm IDEA: XBRL DOCUMENT v3.24.0.1

Provisions, income tax liabilities and other liabilities - Reconciliation of Net Amount Recognized in Respect of Pension and Other Post-employment Benefit Plans (Details) - EUR (€) € in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Disclosure of net defined benefit liability (asset) [line items]
Actuarial losses/(gains) due to changes in financial assumptions	€ (171)	€ 654	€ 686
Pre-funded pension obligations	271	269	408
Obligations provided for	5,262	5,822	6,430	€ 6,998
UK
Disclosure of net defined benefit liability (asset) [line items]
Actuarial losses/(gains) due to changes in demographic assumptions	(11)	(54)	(125)
Actuarial losses/(gains) due to changes in financial assumptions	43	(1,143)	(77)
Remeasurement of net defined-benefit (asset)/ liability (actuarial gains and losses)	(44)	(131)	237
Pensions and other post-employment benefits
Disclosure of net defined benefit liability (asset) [line items]
Beginning of period	1,770	2,539
Current service cost	140	193	227
Interest (income)/cost	71	43	42
Plan amendments, curtailments or settlements not specified in the terms of the plan	(22)	(68)	5
Administration costs and taxes paid during the period	(7)	(6)	(7)
Contributions from plan members	6	6	6
Net obligation	1,937	1,752	2,524
Pre-funded pension obligations	271	269	408
Expense recognized directly in profit or loss	190	168	276
End of period	1,943	1,770	2,539
Remeasurement of net defined-benefit (asset)/ liability (actuarial gains and losses)	171	(650)	(685)
Expense/(gain) for the period	361	(482)	(409)
Pensions and other post-employment benefits | UK
Disclosure of net defined benefit liability (asset) [line items]
Beginning of period	(95)	(215)
Current service cost	0	0	0
Contributions from plan members	0	0	0
Pre-funded pension obligations	66	99	220
Expense recognized directly in profit or loss	(5)	(13)	6
End of period	(61)	(95)	(215)
Remeasurement of net defined-benefit (asset)/ liability (actuarial gains and losses)	44	130	(236)
Pensions and other post-employment benefits | Present value of defined benefit obligation
Disclosure of net defined benefit liability (asset) [line items]
Beginning of period	8,651	12,175	12,456
Current service cost	140	193	227
Interest (income)/cost	346	206	148
Actuarial losses/(gains) due to changes in demographic assumptions	(34)	(219)	(162)
Actuarial losses/(gains) due to changes in financial assumptions	157	(3,006)	(210)
Actuarial losses/(gains) due to experience adjustments	256	177	(120)
Plan amendments, curtailments or settlements not specified in the terms of the plan	(36)	(229)	(4)
Plan settlements specified in the terms of the plan	(40)	(84)	(66)
Benefits paid	(483)	(463)	(503)
Changes in scope of consolidation and transfers	(14)	(114)	(8)
Currency translation differences	(13)	15	417
End of period	8,930	8,651	12,175
Pensions and other post-employment benefits | Plan assets
Disclosure of net defined benefit liability (asset) [line items]
Beginning of period	(6,899)	(9,651)	(9,358)
Interest (income)/cost	(276)	(163)	(106)
Plan amendments, curtailments or settlements not specified in the terms of the plan	17	161	9
Plan settlements specified in the terms of the plan	40	84	66
Changes in scope of consolidation and transfers	8	32	6
Currency translation differences	(11)	52	(344)
Difference between actual return and interest income on plan assets	197	(2,398)	207
Administration costs and taxes paid during the period	(7)	(6)	(7)
Contributions from plan members	6	6	6
Employer’s contributions	122	238	176
Benefits paid	(446)	(426)	(458)
End of period	(6,993)	(6,899)	(9,651)
Pensions and other post-employment benefits | Effect of asset ceiling
Disclosure of net defined benefit liability (asset) [line items]
Beginning of period	18	15
End of period	6	18	15
Provisions for pensions and other post-employment benefits
Disclosure of net defined benefit liability (asset) [line items]
Obligations provided for	2,214	2,039	2,947	€ 3,276
Provisions for pensions and other post-employment benefits | Pensions and other post-employment benefits
Disclosure of net defined benefit liability (asset) [line items]
Obligations provided for	€ 2,214	€ 2,039	€ 2,947

X

- Definition

The decrease (increase) in a net defined benefit liability (asset) resulting from actuarial gains (losses) arising from changes in demographic assumptions that result in remeasurements of the net defined benefit liability (asset). Demographic assumptions deal with matters such as: (a) mortality; (b) rates of employee turnover, disability and early retirement; (c) the proportion of plan members with dependants who will be eligible for benefits; (d) the proportion of plan members who will select each form of payment option available under the plan terms; and (e) claim rates under medical plans. [Refer: Net defined benefit liability (asset)]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 19
-IssueDate 2023-01-01
-Paragraph 141
-Subparagraph c
-Clause ii
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2023-en-r&anchor=para_141_c_ii&doctype=Standard
-URIDate 2023-03-23

+ Details

Name:	ifrs-full_ActuarialGainsLossesArisingFromChangesInDemographicAssumptionsNetDefinedBenefitLiabilityAsset
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

The decrease (increase) in a net defined benefit liability (asset) resulting from actuarial gains (losses) arising from changes in financial assumptions that result in remeasurements of the net defined benefit liability (asset). Financial assumptions deal with items such as: (a) the discount rate; (b) benefit levels, excluding any cost of the benefits to be met by employees, and future salary; (c) in the case of medical benefits, future medical costs, including claim handling costs (ie the costs that will be incurred in processing and resolving claims, including legal and adjuster's fees); and (d) taxes payable by the plan on contributions relating to service before the reporting date or on benefits resulting from that service. [Refer: Net defined benefit liability (asset)]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 19
-IssueDate 2023-01-01
-Paragraph 141
-Subparagraph c
-Clause iii
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2023-en-r&anchor=para_141_c_iii&doctype=Standard
-URIDate 2023-03-23

+ Details

Name:	ifrs-full_ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsNetDefinedBenefitLiabilityAsset
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

The decrease (increase) in a net defined benefit liability (asset) resulting from actuarial gains (losses) arising from experience adjustments that result in remeasurements of the net defined benefit liability (asset). Experience adjustments deal with the effects of differences between the previous actuarial assumptions and what has actually occurred. [Refer: Net defined benefit liability (asset)]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 19
-IssueDate 2023-01-01
-Paragraph 141
-Subparagraph c
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2023-en-r&anchor=para_141_c&doctype=Standard
-URIDate 2023-03-23

+ Details

Name:	ifrs-full_ActuarialGainsLossesArisingFromExperienceAdjustmentsNetDefinedBenefitLiabilityAsset
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

The amount of benefits paid or payable for retirement benefit plans.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 26
-IssueDate 2023-01-01
-Paragraph 35
-Subparagraph b
-Clause v
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=26&code=ifrs-tx-2023-en-r&anchor=para_35_b_v&doctype=Standard
-URIDate 2023-03-23

+ Details

Name:	ifrs-full_BenefitsPaidOrPayable
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

The decrease (increase) in net defined benefit liability (asset) resulting from contributions to a defined benefit plan by the employer. [Refer: Net defined benefit liability (asset); Defined benefit plans [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 19
-IssueDate 2023-01-01
-Paragraph 141
-Subparagraph f
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2023-en-r&anchor=para_141_f&doctype=Standard
-URIDate 2023-03-23

+ Details

Name:	ifrs-full_ContributionsToPlanByEmployerNetDefinedBenefitLiabilityAsset
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

The decrease (increase) in the net defined benefit liability (asset) resulting from contributions to a defined benefit plan by plan participants. [Refer: Net defined benefit liability (asset); Defined benefit plans [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 19
-IssueDate 2023-01-01
-Paragraph 141
-Subparagraph f
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2023-en-r&anchor=para_141_f&doctype=Standard
-URIDate 2023-03-23

+ Details

Name:	ifrs-full_ContributionsToPlanByPlanParticipantsNetDefinedBenefitLiabilityAsset
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

The increase (decrease) in the net defined benefit liability (asset) resulting from employee service in the current period. [Refer: Net defined benefit liability (asset)]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 19
-IssueDate 2023-01-01
-Paragraph 141
-Subparagraph a
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2023-en-r&anchor=para_141_a&doctype=Standard
-URIDate 2023-03-23

+ Details

Name:	ifrs-full_CurrentServiceCostNetDefinedBenefitLiabilityAsset
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

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 decrease (increase) in a net defined benefit liability (asset) resulting from the remeasurement of that net defined benefit liability (asset). [Refer: Net defined benefit liability (asset)]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 19
-IssueDate 2023-01-01
-Paragraph 141
-Subparagraph c
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2023-en-r&anchor=para_141_c&doctype=Standard
-URIDate 2023-03-23

+ Details

Name:	ifrs-full_GainLossOnRemeasurementOfNetDefinedBenefitLiabilityAsset
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

The increase (decrease) in the net defined benefit liability (asset) resulting from business combinations and disposals. [Refer: Business combinations [member]; Net defined benefit liability (asset)]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 19
-IssueDate 2023-01-01
-Paragraph 141
-Subparagraph h
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2023-en-r&anchor=para_141_h&doctype=Standard
-URIDate 2023-03-23

+ Details

Name:	ifrs-full_IncreaseDecreaseThroughBusinessCombinationsAndDisposalsNetDefinedBenefitLiabilityAsset
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

The increase (decrease) in the net defined benefit liability (asset) resulting from changes in foreign exchange rates. [Refer: Net defined benefit liability (asset)]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 19
-IssueDate 2023-01-01
-Paragraph 141
-Subparagraph e
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2023-en-r&anchor=para_141_e&doctype=Standard
-URIDate 2023-03-23

+ Details

Name:	ifrs-full_IncreaseDecreaseThroughChangesInForeignExchangeRatesNetDefinedBenefitLiabilityAsset
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

The increase (decrease) in the net defined benefit liability (asset) resulting from the passage of time. [Refer: Interest expense; Net defined benefit liability (asset)]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 19
-IssueDate 2023-01-01
-Paragraph 141
-Subparagraph b
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2023-en-r&anchor=para_141_b&doctype=Standard
-URIDate 2023-03-23

+ Details

Name:	ifrs-full_InterestExpenseIncomeNetDefinedBenefitLiabilityAsset
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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 amount of non-current provisions, including provisions for employee benefits. [Refer: Provisions]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2023-01-01
-Paragraph 54
-Subparagraph l
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_54_l&doctype=Standard
-URIDate 2023-03-23

+ Details

Name:	ifrs-full_NoncurrentProvisions
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

The decrease (increase) in the net defined benefit liability (asset) resulting from payments from the plan. [Refer: Net defined benefit liability (asset)]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 19
-IssueDate 2023-01-01
-Paragraph 141
-Subparagraph g
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2023-en-r&anchor=para_141_g&doctype=Standard
-URIDate 2023-03-23

+ Details

Name:	ifrs-full_PaymentsFromPlanNetDefinedBenefitLiabilityAsset
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

The amount of deficit in a defined benefit plan. [Refer: Defined benefit plans [member]]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2023-01-01
-Paragraph 55
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_55&doctype=Standard
-URIDate 2023-03-23

+ Details

Name:	ifrs-full_RecognisedLiabilitiesDefinedBenefitPlan
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

The decrease (increase) in the net defined benefit liability (asset) resulting from the return on plan assets, excluding amounts included in interest income or expense. The return on plan assets is interest, dividends and other revenue derived from the plan assets, together with realised and unrealised gains or losses on the plan assets, less any costs of managing plan assets and less any tax payable by the plan itself, other than tax included in the actuarial assumptions used to measure the present value of the defined benefit obligation. [Refer: Plan assets [member]; Net defined benefit liability (asset); Actuarial assumptions [member]; Increase (decrease) in net defined benefit liability (asset) resulting from interest expense (income)]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 19
-IssueDate 2023-01-01
-Paragraph 141
-Subparagraph c
-Clause i
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2023-en-r&anchor=para_141_c_i&doctype=Standard
-URIDate 2023-03-23

+ Details

Name:	ifrs-full_ReturnOnPlanAssetsNetDefinedBenefitLiabilityAsset
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Decrease (Increase) In Net Defined Benefit Liability (Asset) Resulting From Administration Costs And Taxes Paid During The Period

+ References

No definition available.

+ Details

Name:	sny_DecreaseIncreaseInNetDefinedBenefitLiabilityAssetResultingFromAdministrationCostsAndTaxesPaidDuringThePeriod
Namespace Prefix:	sny_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Decrease (Increase) In Net Defined Benefit Liability (Asset) Resulting From Payments In Respect Of Settlements Specified In The Terms Of The Plan

+ References

No definition available.

+ Details

Name:	sny_DecreaseIncreaseInNetDefinedBenefitLiabilityAssetResultingFromPaymentsInRespectOfSettlementsSpecifiedInTheTermsOfThePlanNetDefinedBenefitLiabilityAsset
Namespace Prefix:	sny_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Decrease (Increase) In Net Defined Benefit Liability (Asset) Resulting From Plan Amendments, Curtailments Or Settlements Not Specified In The Terms Of The Plan

+ References

No definition available.

+ Details

Name:	sny_DecreaseIncreaseInNetDefinedBenefitLiabilityAssetResultingFromPlanAmendmentsCurtailmentsOrSettlementsNotSpecifiedInTheTermsOfThePlan
Namespace Prefix:	sny_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Employee Benefits Expense / (Gain)

+ References

No definition available.

+ Details

Name:	sny_EmployeeBenefitsExpenseGain
Namespace Prefix:	sny_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Pre-funded pension obligations.

+ References

No definition available.

+ Details

Name:	sny_PreFundedPensionObligations
Namespace Prefix:	sny_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Total expense for pensions and other post-employment benefits recognized directly in profit or loss.

+ References

No definition available.

+ Details

Name:	sny_TotalExpenseForPensionsAndOtherPostEmploymentBenefitsRecognizedDirectlyInProfitOrLoss
Namespace Prefix:	sny_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Details

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

X

- Details

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

X

- Details

Name:	ifrs-full_NetDefinedBenefitLiabilityAssetAxis=ifrs-full_PresentValueOfDefinedBenefitObligationMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_NetDefinedBenefitLiabilityAssetAxis=ifrs-full_PlanAssetsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_NetDefinedBenefitLiabilityAssetAxis=ifrs-full_EffectOfAssetCeilingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_ClassesOfProvisionsAxis=sny_ProvisionsForPensionsAndOtherPostEmploymentBenefitsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: