Securities and Other Collateralized Financing Activities, Offsetting - Securities and Other Collateralized Financing Activities (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Resale, securities borrowing and similar arrangements [Abstract]
Gross amounts recognized	$ 119,050	$ 129,282
Gross amounts offset in consolidated balance sheet	(30,969)	(28,402)
Net amounts in consolidated balance sheet	88,081	100,880
Collateral not recognized in consolidated balance sheet	(87,344)	(99,970)
Net amount	737	910
Repurchase, Securities Lending and Similar Arrangements [Abstract]
Gross amounts recognized	117,444	106,060
Gross amounts offset in consolidated balance sheet	(30,969)	(28,402)
Net amounts in consolidated balance sheet	86,475	77,658
Collateral pledged but not netted in consolidated balance sheet	(86,420)	(77,529)
Net amount	55	129
Fed funds sold and securities purchased under resale agreements [Member]
Resale, securities borrowing and similar arrangements [Abstract]
Net amounts in consolidated balance sheet	68,700	80,400
Loans [Member]
Resale, securities borrowing and similar arrangements [Abstract]
Net amounts in consolidated balance sheet	$ 19,400	$ 20,500

Amount, before effects of master netting arrangements, of securities loaned to entities in exchange for collateral and 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.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)
-SubTopic 20
-Topic 210
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483466/210-20-50-3

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 860
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 7
-Subparagraph (a)(1)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481420/860-30-50-7

+ Details

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- References

No definition available.

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- References

No definition available.

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- Definition

Amount of collateral received related to exposures subject to enforceable master repurchase agreements and master securities lending agreements. While these agreements are typically over-collateralized, the collateral amount is limited to the amount of the related recognized asset for each counterparty.

+ References

No definition available.

+ Details

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- Definition

Amount, before effects of master repurchase agreements and master securities lending agreements, of funds outstanding loaned in the form of a security resale 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, and of securities borrowed from entities in exchange for collateral.

+ References

No definition available.

+ Details

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- Definition

Amount of funds outstanding loaned in the form of a security resale 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 offset against an obligation to return collateral. Also includes amount of securities borrowed from entities in exchange for collateral offset against an obligation to return collateral under a master netting arrangement.

+ References

No definition available.

+ Details

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- Definition

Net amount of exposure after accounting for amounts offset in the consolidated balance sheet and securities or loans collateral that has not been offset against securities purchased under agreement to resell and securities borrowed.

+ References

No definition available.

+ Details

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- Definition

Amount, after effects of master repurchase agreements and master securities lending agreements, of funds outstanding loaned in the form of a security resale 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, and of securities borrowed from entities in exchange for collateral.

+ References

No definition available.

+ Details

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- Definition

Amount of collateral pledged related to exposures subject to enforceable master repurchase agreements and master securities lending agreements. While these agreements are typically over-collateralized, the collateral amount is limited to the amount of the related recognized liability for each counterparty.

+ References

No definition available.

+ Details

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- Definition

Amount of funds outstanding borrowed in the form of a security resale agreement between the entity and another party for the purchase and resale of identical or substantially the same securities at a date certain for a specified price offset against a right to receive collateral. Also includes amount of securities loaned to entities in exchange for collateral offset against a right to receive collateral under a master netting arrangement.

+ References

No definition available.

+ Details

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- Definition

Net amount of exposure after accounting for amounts offset in the consolidated balance sheet and securities or loans collateral that has not been offset against securities sold under agreement to repurchase and securities loaned.

+ References

No definition available.

+ Details

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- Definition

Amount, after effects of master repurchase agreements and master securities lending agreements, of funds outstanding borrowed in the form of a security resale agreement between the entity and another party for the purchase and resale of identical or substantially the same securities at a date certain for a specified price, and of securities loaned to entities in exchange for collateral.

+ References

No definition available.

+ Details

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- Details

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- Details

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