Commitments, Guarantees and Contingencies - Commitments (Details) $ in Millions	Mar. 31, 2026 USD ($)
Commitment, Fiscal Year Maturity
Less than 1 (year)	$ 217,875
1-3 (years)	62,886
3-5 (years)	91,034
Over 5 (years)	14,562
Total	386,357
Forward-Starting Secured Financing Receivables
Commitment, Fiscal Year Maturity
Less than 1 (year)	156,477
1-3 (years)	2,278
3-5 (years)	0
Over 5 (years)	0
Total	158,755
Central counterparty
Commitment, Fiscal Year Maturity
Less than 1 (year)	15,226
1-3 (years)	0
3-5 (years)	0
Over 5 (years)	0
Total	15,226
Investment activities
Commitment, Fiscal Year Maturity
Less than 1 (year)	2,177
1-3 (years)	580
3-5 (years)	108
Over 5 (years)	502
Total	3,367
Letters of credit and other financial guarantees
Commitment, Fiscal Year Maturity
Less than 1 (year)	32
1-3 (years)	0
3-5 (years)	0
Over 5 (years)	4
Total	36
Corporate
Commitment, Fiscal Year Maturity
Less than 1 (year)	19,756
1-3 (years)	48,423
3-5 (years)	80,382
Over 5 (years)	6,559
Total	155,120
Lending commitments participated to third parties	13,373
Secured lending facilities
Commitment, Fiscal Year Maturity
Less than 1 (year)	6,309
1-3 (years)	8,156
3-5 (years)	10,132
Over 5 (years)	6,524
Total	31,121
Commercial and Residential real estate
Commitment, Fiscal Year Maturity
Less than 1 (year)	423
1-3 (years)	45
3-5 (years)	165
Over 5 (years)	466
Total	1,099
Securities-based lending and Other
Commitment, Fiscal Year Maturity
Less than 1 (year)	17,475
1-3 (years)	3,404
3-5 (years)	247
Over 5 (years)	507
Total	$ 21,633

Commitments participated to third parties.

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- Definition

Minimum amount of other commitment not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in the taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 942
-SubTopic 235
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477314/942-235-S99-2

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S50
-Paragraph 4
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480738/235-10-S50-4

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 3
-Subparagraph (SX 210.12-04(a))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480678/235-10-S99-3

+ Details

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- Definition

Amount of commitment classified as other to be paid after fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

+ Details

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Amount of commitment classified as other to be paid in fourth and fifth fiscal years following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

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Amount of commitment classified as other to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

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Amount of commitment classified as other to be paid in second and third fiscal years following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

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- References

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