Loans, Lending Commitments and Related Allowance for Credit Losses - Gross Charge-offs by Origination Year (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2025	Dec. 31, 2024
Financing Receivable and Allowance for Credit Losses
Revolving	$ (22)	$ (39)
2025	(10)
2023		(18)
2022	(13)	(16)
2021	(123)	(11)
Prior	(46)	(158)
Total	(214)	(242)
Corporate
Financing Receivable and Allowance for Credit Losses
Revolving	(14)	(39)
2025	(10)
2023		0
2022	0	0
2021	0	0
Prior	0	0
Total	(24)	(39)
Secured lending facilities
Financing Receivable and Allowance for Credit Losses
Revolving	0	0
2025	0
2023		0
2022	0	0
2021	0	(11)
Prior	0	0
Total	0	(11)
Commercial real estate
Financing Receivable and Allowance for Credit Losses
Revolving	0	0
2025	0
2023		(18)
2022	(13)	(14)
2021	(119)	0
Prior	(41)	(133)
Total	(173)	(165)
Residential real estate
Financing Receivable and Allowance for Credit Losses
Revolving	0	0
2025	0
2023		0
2022	0	0
2021	0	0
Prior	0	0
Total	0	0
Securities-based lending and Other loans
Financing Receivable and Allowance for Credit Losses
Revolving	(8)	0
2025	0
2023		0
2022	0	(2)
2021	(4)	0
Prior	(5)	(25)
Total	$ (17)	$ (27)

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
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-Name Accounting Standards Codification
-Section 50
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-Publisher FASB
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
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-URI https://asc.fasb.org/1943274/2147479319/326-20-50-13

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-13

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-13

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
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-Paragraph 13
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-13

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Name Regulation S-K (SK)
-Number 229
-Section 1405
-Paragraph c
-Publisher SEC

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Amount of writeoff of financing receivable originated more than five years before current fiscal year. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 326
-SubTopic 20
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Amount of writeoff of financing receivable that can be withdrawn, repaid, and redrawn.

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Amount of writeoff of financing receivable originated three years before current fiscal year. Excludes net investment in lease.

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Amount of writeoff of financing receivable originated in current fiscal year. Excludes net investment in lease.

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