Net investment hedge gains and losses.

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Amount of gain (loss) from excluded component of derivative hedge, recognized in earnings. Excludes recognition under systematic and rational method.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 20
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- Definition

Amount before tax of reclassification adjustment from accumulated other comprehensive income for translation gain (loss) realized upon the sale or liquidation of an investment in a foreign entity and foreign currency hedges that are designated and qualified as hedging instruments for hedges of the foreign currency exposure of a net investment in a foreign operation.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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Amount, before tax and reclassification, of gain (loss) from derivative designated and qualifying as net investment hedge.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4CCC
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-URI http://asc.fasb.org/extlink&oid=121590274&loc=SL109998896-113959

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Derivative Instruments - Impact on Statements of Income, Net Investment Hedges (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Unrealized gains/(losses) on investment securities
Gains/(losses) recorded in income and other comprehensive income/(loss)
Net pre-tax gain (loss) reclassified related to liquidation of legal entity		$ 18
Unrealized gains/(losses) on investment securities \| Other Income
Gains/(losses) recorded in income and other comprehensive income/(loss)
Net pre-tax gain (loss) reclassified related to liquidation of legal entity	$ 3	18
Unrealized gains/(losses) on investment securities \| Other Expense
Gains/(losses) recorded in income and other comprehensive income/(loss)
Net pre-tax gain (loss) reclassified related to liquidation of legal entity			$ (17)
Net Investment Hedging \| Foreign exchange contracts
Gains/(losses) recorded in income and other comprehensive income/(loss)
Amounts recorded in income	(122)	72	11
Amounts recorded in OCI	$ (1,408)	$ 64	$ 1,219