Note 18 Other Intangible Assets (Details) - EUR (€) € in Millions	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Other intangible assets [Line Items]
Intangible assets other than goodwill	€ 1,790	€ 1,568	€ 1,449
Computer software [member]
Other intangible assets [Line Items]
Intangible assets other than goodwill	1,764	1,535	1,393
Intangible Assets With Indefinite Useful Life
Other intangible assets [Line Items]
Intangible assets other than goodwill	9	8	13
Intangible assets with definite useful life [Member]
Other intangible assets [Line Items]
Intangible assets other than goodwill	€ 17	€ 25	€ 43

The amount of identifiable non-monetary assets without physical substance. This amount does not include goodwill. [Refer: Goodwill]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 38
-IssueDate 2024-01-01
-Paragraph 118
-Subparagraph e
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=38&code=ifrs-tx-2024-en-r&anchor=para_118_e&doctype=Standard
-URIDate 2024-03-27

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2024-01-01
-Paragraph 54
-Subparagraph c
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_54_c&doctype=Standard
-URIDate 2024-03-27

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant