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FVM - Valuation adjustments: CVAs, FVAs, DVAs and other valuation adjustments (Detail) - USD ($) $ in Millions		3 Months Ended
		Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020
Valuation Adjustments On Financial Instruments [Line Items]
Credit valuation adjustments	[1]	$ (51)	$ (53)	$ (66)
Funding valuation adjustments		(58)	(58)	(73)
Debit valuation adjustments		1	1	0
Other valuation adjustments		(848)	(867)	(820)
of which: liquidity		(327)	(356)	(340)
of which: model uncertainty		$ (521)	$ (511)	$ (479)
[1] <div>Amounts do not include reserves against defaulted counterparties.</div>

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- Definition

The amount of valuation adjustments made on financial instruments which represents the estimated fair value of protection required to hedge the counterparty credit risk of OTC derivative instruments, including funded derivative instruments that are classified as Financial assets at fair value not held for trading. A positive value refers to life-to-date gain whereas a negative value refers to life-to-date loss.

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No definition available.

+ Details

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- Definition

The amount of adjustment made to the measurement of derivative liabilities to reflect the own credit risk of the entity. A positive value refers to life-to-date gain whereas a negative value refers to life-to-date loss.

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No definition available.

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- Definition

The amount of valuation adjustments made on financial instruments which reflect the costs and benefits of funding associated with uncollateralized and partially collateralized derivative receivables and payables. A positive value refers to life-to-date gain whereas a negative value refers to life-to-date loss.

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No definition available.

+ Details

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- Definition

The amount of valuation adjustments made on financial instruments relating to liquidity. A positive value refers to life-to-date gain whereas a negative value refers to life-to-date loss.

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No definition available.

+ Details

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- Definition

The amount of valuation adjustments made on financial instruments relating to model uncertainty. A positive value refers to life-to-date gain whereas a negative value refers to life-to-date loss.

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No definition available.

+ Details

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- Definition

The amount of other valuation adjustments made on financial instruments. A positive value refers to life-to-date gain whereas a negative value refers to life-to-date loss.

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No definition available.

+ 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.

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