Collateralized Agreements and Financings - Schedule of Repurchase Agreements and Securities Loaned by Maturity Date (Detail) - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021
Offsetting Liabilities [Line Items]
Repurchase agreements	$ 251,222	$ 294,905
Securities loaned	45,402	$ 57,931
No stated maturity and overnight
Offsetting Liabilities [Line Items]
Repurchase agreements	96,905
Securities loaned	26,459
2 - 30 days
Offsetting Liabilities [Line Items]
Repurchase agreements	67,705
Securities loaned	611
31 - 90 days
Offsetting Liabilities [Line Items]
Repurchase agreements	31,650
Securities loaned	863
91 days - 1 year
Offsetting Liabilities [Line Items]
Repurchase agreements	44,190
Securities loaned	11,102
Greater than 1 year
Offsetting Liabilities [Line Items]
Repurchase agreements	10,772
Securities loaned	$ 6,367

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 55
-Paragraph 7
-URI https://asc.fasb.org/extlink&oid=99393222&loc=SL20226000-175313

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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 elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 55
-Paragraph 7
-URI https://asc.fasb.org/extlink&oid=99393222&loc=SL20226000-175313

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312

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