The entity's cumulative unrecognised share of losses of its joint ventures for which transition from proportionate consolidation to the equity method was performed. [Refer: Total for all joint ventures [member]; Cumulative unrecognised share of losses of joint ventures]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 11
-IssueDate 2024-01-01
-Paragraph C4
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The fair value of investments in joint ventures if there are quoted market prices for the investment. [Refer: Total for all joint ventures [member]; Investments in joint ventures reported in separate financial statements]

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 12
-IssueDate 2024-01-01
-Paragraph 21
-Subparagraph b
-Clause iii
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-URIDate 2024-03-27

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The fair value of investments in associates if there are quoted market prices for the investment. [Refer: Total for all associates [member]; Investments in associates reported in separate financial statements]

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Disclosure Of Investment Accounted For Using Equity Method

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Number Of Partnerships With Santander Consumer Finance

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Investments accounted for using the equity method - Narrative (Details)	Dec. 31, 2024 EUR (€) partnership	Dec. 31, 2023 EUR (€)	Dec. 31, 2022 EUR (€)
Disclosure Of Investment Accounted For Using Equity Method [Line Items]
Cumulative unrecognised share of losses of joint ventures, transition from proportionate consolidation to equity method	€ 0	€ 27,000,000	€ 158,000,000
Number of partnerships with Santander Consumer Finance \| partnership	2
Fair value of investments in associates for which there are quoted market prices		173,000,000
Zhejiang Leapmotor Technology Co. Ltd
Disclosure Of Investment Accounted For Using Equity Method [Line Items]
Fair value of investments in associates for which there are quoted market prices	€ 1,147,000,000	1,176,000,000
Archer Aviation Inc
Disclosure Of Investment Accounted For Using Equity Method [Line Items]
Fair value of investments in associates for which there are quoted market prices	533,000,000
Tofas-Turk Otomobil Fabrikasi A.S.
Disclosure Of Investment Accounted For Using Equity Method [Line Items]
Fair value of investments in joint ventures	€ 1,056,000,000	€ 1,219,000,000