Off-balance sheet assets received (Detail) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Off Balance Sheet Assets Received [Line Items]
Fair value of assets received that can be sold or repledged	$ 581,769	$ 576,596
Thereof sold or repledged	383,227	382,313
Off balance sheet securities placed with central banks related to undrawn credit lines and for payment clearing and settlement purposes	$ 21,400	$ 29,100

The fair value of collateral sold or repledged that was permitted to be sold or repledged in the absence of default by the owner of the collateral. [Refer: At fair value [member]]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 7
-IssueDate 2024-01-01
-Paragraph 15
-Subparagraph b
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_15_b&doctype=Standard
-URIDate 2024-03-27

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- Definition

The fair value of off-balance sheet assets held that is permitted to be sold or repledged in the absence of default by the owner of the asset.

+ References

No definition available.

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- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.

+ References

No definition available.

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- Definition

The amount of off-balance sheet securities placed with central banks related to undrawn credit lines and for payment, clearing and settlement purposes for which there are no associated liabilities or contingent liabilities.

+ References

No definition available.

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