XML 211 R167.htm IDEA: XBRL DOCUMENT
v3.22.4

Provisions, income tax liabilities and other liabilities - Summary of Financial and Demographic Assumptions (Details) | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Disclosure of defined benefit plans [line items] |  |  |
Weighted average duration of defined benefit obligation | 10 years |  |
Minimum Plan 1 |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Weighted average duration of defined benefit obligation | 0 years |  |
Maximum Plan 1 |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Weighted average duration of defined benefit obligation | 7 years |  |
Minimum plan 2 |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Weighted average duration of defined benefit obligation | 7 years |  |
Maximum plan 2 |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Weighted average duration of defined benefit obligation | 10 years |  |
France |  |  |
Disclosure of defined benefit plans [line items] |  |  |
General inflation rate | 2.50% | 1.95% | 1.45%
Pension benefit indexation | 2.50% | 1.95% |
Healthcare cost inflation rate(d) | 0.00% | 0.00% | 0.00%
Retirement age, bottom of range | 62 years | 62 years | 62 years
Retirement age, top of range | 67 years | 67 years | 67 years
Weighted average duration of defined benefit obligation | 10 years | 12 years | 13 years
France | Bottom of range |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Discount rate | 3.55% | 0.10% | 0.00%
Pension benefit indexation |  |  | 1.45%
France | Top of range |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Discount rate | 3.75% | 1.10% | 0.55%
Germany |  |  |
Disclosure of defined benefit plans [line items] |  |  |
General inflation rate | 2.50% | 1.95% | 1.45%
Pension benefit indexation | 2.50% | 1.95% | 1.45%
Healthcare cost inflation rate(d) | 0.00% | 0.00% | 0.00%
Retirement age, top of range | 63 years | 62 years | 62 years
Weighted average duration of defined benefit obligation | 12 years | 16 years | 16 years
Germany | Bottom of range |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Discount rate | 3.55% | 0.10% | 0.00%
Germany | Top of range |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Discount rate | 3.75% | 1.10% | 0.55%
US |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Discount rate | 4.90% | 2.70% | 2.40%
General inflation rate | 0.00% | 0.00% | 0.00%
Pension benefit indexation | 0.00% | 0.00% | 0.00%
Retirement age, bottom of range | 55 years | 55 years | 55 years
Retirement age, top of range | 70 years | 70 years | 70 years
Weighted average duration of defined benefit obligation | 11 years | 15 years | 16 years
US | Bottom of range |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Healthcare cost inflation rate(d) | 3.29% | 3.50% | 3.50%
US | Top of range |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Healthcare cost inflation rate(d) | 6.56% | 4.50% | 4.50%
UK |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Discount rate | 4.75% | 1.90% | 1.35%
General inflation rate | 3.25% | 3.30% | 2.95%
Pension benefit indexation | 3.00% | 3.15% | 2.85%
Healthcare cost inflation rate(d) | 0.00% | 0.00% | 0.00%
Retirement age, bottom of range | 60 years | 60 years | 60 years
Retirement age, top of range | 65 years | 65 years | 65 years
Weighted average duration of defined benefit obligation | 13 years | 17 years | 18 years

X
- Definition The discount rate used as the significant actuarial assumption to determine the present value of a defined benefit obligation. [Refer: Defined benefit obligation, at present value; Actuarial assumptions [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 19 -IssueDate 2021-01-01 -Paragraph 144 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_144&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_ActuarialAssumptionOfDiscountRates
Namespace Prefix: | ifrs-full_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The expected rate of inflation that is used as a significant actuarial assumption to determine the present value of a defined benefit obligation. [Refer: Defined benefit plans [member]; Defined benefit obligation, at present value; Actuarial assumptions [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 19 -IssueDate 2021-01-01 -Paragraph 144 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_144&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_ActuarialAssumptionOfExpectedRatesOfInflation
Namespace Prefix: | ifrs-full_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The expected rate of increases in pension that is used as a significant actuarial assumption to determine the present value of a defined benefit obligation. [Refer: Defined benefit plans [member]; Defined benefit obligation, at present value; Actuarial assumptions [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 19 -IssueDate 2021-01-01 -Paragraph 144 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_144&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_ActuarialAssumptionOfExpectedRatesOfPensionIncreases
Namespace Prefix: | ifrs-full_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Medical cost trend rate used as significant actuarial assumption to determine the present value of a defined benefit obligation. [Refer: Defined benefit obligation, at present value; Actuarial assumptions [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 19 -IssueDate 2021-01-01 -Paragraph 144 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_144&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_ActuarialAssumptionOfMedicalCostTrendRates
Namespace Prefix: | ifrs-full_
Data Type: | num:percentItemType
Balance Type: | na
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_DisclosureOfDefinedBenefitPlansLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The weighted average duration of a defined benefit obligation. [Refer: Weighted average [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2021-01-01 -Paragraph 147 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_147_c&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_WeightedAverageDurationOfDefinedBenefitObligation2019
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Retirement age, bottom of range. + References No definition available. + Details
Name: | sny_ActuarialAssumptionOfRetirementAgeBottomOfRange
Namespace Prefix: | sny_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Actuarial assumption of retirement age top of range. + References No definition available. + Details
Name: | sny_ActuarialAssumptionOfRetirementAgeTopOfRange
Namespace Prefix: | sny_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | ifrs-full_RangeAxis=sny_MinimumPlan1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RangeAxis=sny_MaximumPlan1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RangeAxis=sny_MinimumPlan2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RangeAxis=sny_MaximumPlan2Member
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_RangeAxis=ifrs-full_BottomOfRangeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RangeAxis=ifrs-full_TopOfRangeMember
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: |