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Cash and balances with central bank - Summary of cash and balances with central bank (Details) - EUR (€) € in Millions	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Cash and balances with central bank [abstract]
Amounts held at central banks	€ 88,627	€ 85,934
Cash and bank balances	1,587	1,681
Cash and bank balances at central banks	90,214	87,614	€ 106,520
Amounts held at central banks, amount of loan loss provisions	€ (5)	€ (12)

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 2023-01-01
-Paragraph 112
-Subparagraph c
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-URIDate 2023-03-23

+ 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 2023-01-01
-Paragraph 55
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_55&doctype=Standard
-URIDate 2023-03-23

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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 2023-01-01
-Paragraph 112
-Subparagraph c
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_112_c&doctype=Standard
-URIDate 2023-03-23

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X

- Definition

Amounts Held At Central Banks, Amount Of Loan Loss Provisions

+ References

No definition available.

+ Details

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X

- References

No definition available.

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