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Off balance sheet commitments - Summary of Amount of Guarantees Given and Received (Details) - EUR (€) € in Millions	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Guarantees received
Disclosure of Guarantees [Line Items]
Estimated financial effect of contingent liabilities	€ 1,229	€ 1,149	€ 964
Guarantees given
Disclosure of Guarantees [Line Items]
Estimated financial effect of contingent liabilities	3,815	3,794	3,291
Guarantees provided to banks in connection with credit facilities
Disclosure of Guarantees [Line Items]
Estimated financial effect of contingent liabilities	1,007	1,042	695
Other guarantees given
Disclosure of Guarantees [Line Items]
Estimated financial effect of contingent liabilities	€ 2,808	€ 2,752	€ 2,596

X

- Definition

The amount of the estimated financial effect of contingent liabilities. [Refer: Contingent liabilities [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 37
-IssueDate 2021-01-01
-Paragraph 86
-Subparagraph a
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-URIDate 2021-03-24

+ Details

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- Definition

Disclosure of guarantees.

+ References

No definition available.

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