FEDERAL FUNDS, SECURITIES BORROWED, LOANED AND SUBJECT TO REPURCHASE AGREEMENTS - Repurchase Agreements (Details) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Assets Sold under Agreements to Repurchase
Securities sold under agreements to repurchase	$ 253,514	$ 216,122
Deposits received for securities loaned	11,678	13,305
Total	265,192	229,427
U.S. Treasury and federal agency securities
Assets Sold under Agreements to Repurchase
Securities sold under agreements to repurchase	86,785	58,774
Deposits received for securities loaned	41	0
Total	86,826	58,774
State and municipal securities
Assets Sold under Agreements to Repurchase
Securities sold under agreements to repurchase	2,605	1,605
Deposits received for securities loaned	0	0
Total	2,605	1,605
Foreign government
Assets Sold under Agreements to Repurchase
Securities sold under agreements to repurchase	99,131	89,576
Deposits received for securities loaned	179	105
Total	99,310	89,681
Corporate
Assets Sold under Agreements to Repurchase
Securities sold under agreements to repurchase	21,719	20,194
Deposits received for securities loaned	749	657
Total	22,468	20,851
Equity securities
Assets Sold under Agreements to Repurchase
Securities sold under agreements to repurchase	12,920	20,724
Deposits received for securities loaned	10,664	11,907
Total	23,584	32,631
Mortgage-backed securities
Assets Sold under Agreements to Repurchase
Securities sold under agreements to repurchase	19,421	17,791
Deposits received for securities loaned	0	0
Total	19,421	17,791
Asset-backed securities
Assets Sold under Agreements to Repurchase
Securities sold under agreements to repurchase	6,207	5,479
Deposits received for securities loaned	0	0
Total	6,207	5,479
Other debt securities
Assets Sold under Agreements to Repurchase
Securities sold under agreements to repurchase	4,726	1,979
Deposits received for securities loaned	45	636
Total	4,771	2,615
Open and overnight
Assets Sold under Agreements to Repurchase
Securities sold under agreements to repurchase	108,405	82,073
Deposits received for securities loaned	6,296	9,946
Total	114,701	92,019
Up to 30 days
Assets Sold under Agreements to Repurchase
Securities sold under agreements to repurchase	70,850	68,372
Deposits received for securities loaned	774	266
Total	71,624	68,638
31–90 days
Assets Sold under Agreements to Repurchase
Securities sold under agreements to repurchase	29,898	33,846
Deposits received for securities loaned	2,626	1,912
Total	32,524	35,758
Greater than 90 days
Assets Sold under Agreements to Repurchase
Securities sold under agreements to repurchase	44,361	31,831
Deposits received for securities loaned	1,982	1,181
Total	$ 46,343	$ 33,012

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- Definition

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

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- Definition

Amount, before effects of master netting arrangements, of financial assets loaned to entities in exchange for collateral and funds outstanding borrowed in the form of a financial asset repurchase agreement between the entity and another party for the sale and repurchase of identical or substantially the same financial assets at a date certain for a specified price. Includes liabilities not subject to a master netting arrangement.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 30
-Section 50
-Paragraph 7
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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.

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