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Other gains and losses, and litigation (Details) - EUR (€) € in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Analysis of income and expense [abstract]
Other gains, (losses) and litigation	€ 370	€ 5	€ (136)	[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 line item other gains and losses, and litigation includes the impact of material transactions of an unusual nature or amount. [note B.20.2.]

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