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Restructuring costs and similar items - Summary of Restructuring Costs and Similar Items (Details) - EUR (€) € in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Analysis of income and expense [abstract]
Employee-related expenses	€ 507	€ 193	€ 697
Charges, gains or losses on assets	261	110	149
Compensation for early termination of contracts (other than contracts of employment)	1	34	40
Transformation programs costs	547	463	191
Others	20	20	12
Total	€ 1,336	€ 820	€ 1,089	[1]
[1] Includes the impacts of the IFRIC final agenda decisions of March 2021 on the costs of configuring or customising application software used in a Software as a Service (SaaS) arrangement and of April 2021 on the attribution of benefits to periods of service, as described in Note A.2.1. to the consolidated financial statements for the year ended December 31, 2021.

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The amount of expense relating to restructuring. Restructuring is a programme that is planned and controlled by management and materially changes either the scope of a business undertaken by an entity or the manner in which that business is conducted. Such programmes include: (a) the sale or termination of a line of business; (b) closure of business locations in a country or region or the relocation of activities from one country or region to another; (c) changes in management structure; and (d) fundamental reorganisations that have a material effect on the nature and focus of the entity's operations.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2021-01-01
-Paragraph 98
-Subparagraph b
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_98_b&doctype=Standard
-URIDate 2021-03-24

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Compensation for early termination of contracts (other than contracts of employment).

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Employee related expenses.

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Expense of restructuring activities related to property plant and equipment to inventories.

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Expense Of Restructuring Activities, Transformation Programs Costs

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Other restructuring costs.

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