Segment information - Summary of Additional Information by Geographies (Details) € in Millions	12 Months Ended
Dec. 31, 2022 EUR (€) company	Dec. 31, 2021 EUR (€)	Dec. 31, 2020 EUR (€)
Disclosure of geographical areas [line items]
Number of geographical areas included in cash generating units \| company	3
Turnover	€ 60,073	€ 52,444	€ 50,724
Asia Pacific Africa
Disclosure of geographical areas [line items]
Turnover	27,504	24,264	23,440
The Americas
Disclosure of geographical areas [line items]
Turnover	20,905	16,844	16,080
North America
Disclosure of geographical areas [line items]
Turnover	13,000	10,627	10,117
Latin America
Disclosure of geographical areas [line items]
Turnover	7,905	6,217	5,963
Europe
Disclosure of geographical areas [line items]
Turnover	€ 11,664	€ 11,336	€ 11,204

The income arising in the course of an entity's ordinary activities. Income is increases in assets, or decreases in liabilities, that result in increases in equity, other than those relating to contributions from holders of equity claims.

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+ Details