Amount after tax of increase (decrease) to equity or (increase) decrease to net assets, resulting from the cumulative effect adjustment of a new accounting principle applied in the period of adoption.

No definition available.

+ Details

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- Definition

This item represents the estimated amount of gains and losses from fair value changes included in earnings that are attributable to changes in the instrument-specific credit risk of liabilities with fair values that have been significantly affected during the reporting period by changes in the instrument-specific credit risk.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 30
-Subparagraph (d)(1)
-URI http://asc.fasb.org/extlink&oid=75031198&loc=d3e14172-108612

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- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

+ References

No definition available.

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- Definition

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

+ References

No definition available.

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Business Segments Additional Information (Details) $ in Millions	3 Months Ended
	Mar. 31, 2018 segment	Mar. 31, 2017 USD ($)	Dec. 31, 2017 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments \| segment	5
Other Revenues under the Group Reporting Basis [Member]
Segment Reporting Information [Line Items]
Loss from the fair value movement on structured notes and deposits attributable to our own credit spread		$ 49
IFRS 9 [Member] \| Group Reporting Basis [Member] \| Retained Earnings [Member]
Segment Reporting Information [Line Items]
Cumulative effect of new accounting principle in period of adoption			$ (60)
IFRS 9 [Member] \| Group Reporting Basis [Member] \| Customer Loan Allowance for ECL [Member]
Segment Reporting Information [Line Items]
Cumulative effect of new accounting principle in period of adoption			$ 60