Securities Financing Activities - Schedule of Secured Financing Transactions by Assets Pledged & Remaining Maturity (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Securities Financing Transaction [Line Items]
Securities sold under repurchase agreements	$ 578,060	$ 555,172
Securities loaned and other	41,366	36,649
Overnight and continuous
Securities Financing Transaction [Line Items]
Securities sold under repurchase agreements	238,667	225,134
Securities loaned and other	37,887	32,028
Up to 30 days
Securities Financing Transaction [Line Items]
Securities sold under repurchase agreements	230,980	195,816
Securities loaned and other	1,647	1,706
30 – 90 days
Securities Financing Transaction [Line Items]
Securities sold under repurchase agreements	70,777	56,020
Securities loaned and other	500	937
Greater than 90 days
Securities Financing Transaction [Line Items]
Securities sold under repurchase agreements	37,636	78,202
Securities loaned and other	1,332	1,978
Mortgage-backed securities, U.S. GSEs and government agencies
Securities Financing Transaction [Line Items]
Securities sold under repurchase agreements	56,744	34,119
Securities loaned and other	0	0
Mortgage-backed securities, Residential - nonagency
Securities Financing Transaction [Line Items]
Securities sold under repurchase agreements	1,016	1,239
Securities loaned and other	0	0
Mortgage-backed securities, Commercial - nonagency
Securities Financing Transaction [Line Items]
Securities sold under repurchase agreements	855	1,612
Securities loaned and other	0	0
U.S. Treasury, GSEs and government agencies
Securities Financing Transaction [Line Items]
Securities sold under repurchase agreements	315,834	334,398
Securities loaned and other	143	29
Obligations of U.S. states and municipalities
Securities Financing Transaction [Line Items]
Securities sold under repurchase agreements	1,525	1,181
Securities loaned and other	2	0
Non-U.S. government debt
Securities Financing Transaction [Line Items]
Securities sold under repurchase agreements	157,563	145,548
Securities loaned and other	1,730	1,528
Corporate debt securities
Securities Financing Transaction [Line Items]
Securities sold under repurchase agreements	22,849	13,826
Securities loaned and other	1,864	1,580
Asset-backed securities
Securities Financing Transaction [Line Items]
Securities sold under repurchase agreements	694	1,794
Securities loaned and other	0	0
Equity securities
Securities Financing Transaction [Line Items]
Securities sold under repurchase agreements	20,980	21,455
Securities loaned and other	$ 37,627	$ 33,512

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- Definition

Amount, before effects of master netting arrangements, of securities loaned to entities in exchange for collateral. Includes liabilities not subject to a master netting arrangement and elected not to be offset.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312

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Amount, before effects of master netting arrangements, of funds outstanding borrowed in the form of a security repurchase agreement between the entity and another party for the sale and repurchase of identical or substantially the same securities at a date certain for a specified price. Includes liabilities not subject to a master netting arrangement and elected not to be offset.

+ References

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