Consolidated Statements of Comprehensive Income - EUR (€) € in Millions	6 Months Ended	12 Months Ended
Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Statement of comprehensive income [abstract]
Net income	€ 2,263	€ 3,456	€ 5,436
Attributable to equity holders of Sanofi	2,246	3,430	5,400
Attributable to non-controlling interests	17	26	36
Other comprehensive income:
Actuarial gains/(losses)	235	141	(171)
Change in fair value of equity instruments included in financial assets and financial liabilities	(10)	3	97
Tax effects	(59)	(59)	(3)
Items not subsequently reclassifiable to profit or loss	166	85	(77)
Change in fair value of debt instruments included in financial assets	(5)	6	21
Change in fair value of cash flow hedges	(3)	1	(1)
Change in currency translation differences	1,040	(1,057)	(1,540)
Tax effects	35	(8)	(6)
Items subsequently reclassifiable to profit or loss	1,067	(1,058)	(1,526)
Other comprehensive income for the period, net of taxes	1,233	(973)	(1,603)
Comprehensive income	3,496	2,483	3,833
Attributable to equity holders of Sanofi	3,471	2,465	3,810
Attributable to non-controlling interests	€ 25	€ 18	€ 23

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)]

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