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Cash and balances with central bank - Summary of cash and balances with central banks (Details) - EUR (€) € in Millions	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Cash and balances with central bank [Line Items]
Amounts held at central banks	€ 68,708	€ 88,627
Cash and bank balances	1,645	1,587
Cash and bank balances at central banks	70,353	90,214	€ 87,614
Accumulated impairments
Cash and balances with central bank [Line Items]
Amounts held at central banks	€ (14)	€ (5)

X

- Definition

The amount of bank balances held at central banks other than mandatory reserve deposits. [Refer: Mandatory reserve deposits at central banks]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2024-01-01
-Paragraph 112
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-URIDate 2024-03-27

+ Details

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X

- Definition

The amount of cash and bank balances held at central banks.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2024-01-01
-Paragraph 55
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_55&doctype=Standard
-URIDate 2024-03-27

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X

- Definition

The amount of reserve that is kept in deposit at a central bank to fulfil regulatory reserve requirements.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2024-01-01
-Paragraph 112
-Subparagraph c
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_112_c&doctype=Standard
-URIDate 2024-03-27

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X

- References

No definition available.

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