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Significant accounting policies (Narrative) (Detail) $ in Billions | 6 Months Ended
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Jun. 30, 2021 USD ($)
Disclosure Significant Accounting Policies [Line Items] |
Disclosure of significant interest rate benchmarks to which entity's hedging relationships are exposed [text block] | Refer to “Note 25 Hedge accounting” in the “Consolidated financial statements” section of the Annual Report 2020 for details about phase 1 accounting reliefs
Secured Overnight Financing Rate (SOFR) |
Disclosure Significant Accounting Policies [Line Items] |
Nominal amount of hedging instruments and hedged items in hedging relationships to which amendments for interest rate benchmark reform are applied | $ 11.0
Swiss Average Rate Overnight (SARON) |
Disclosure Significant Accounting Policies [Line Items] |
Nominal amount of hedging instruments and hedged items in hedging relationships to which amendments for interest rate benchmark reform are applied | 1.1
Sterling Overnight Index Average (SONIA) |
Disclosure Significant Accounting Policies [Line Items] |
Nominal amount of hedging instruments and hedged items in hedging relationships to which amendments for interest rate benchmark reform are applied | $ 0.7

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- Definition The disclosure of significant interest rate benchmarks to which the entity's hedging relationships are exposed. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2020-01-01 -Paragraph 24H -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2020-en-r&anchor=para_24H_a&doctype=Standard -URIDate 2020-01-01 + Details
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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. + Details
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- Definition The nominal amount of hedging instruments and hedged items in hedging relationships to which amendments for interest rate benchmark reform are applied. + References No definition available. + Details
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- Details
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- Details
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