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Securitization Activities - Retained Interests in SPEs (Details) - USD ($) $ in Millions	May 31, 2025	Nov. 30, 2024
Securitization Vehicles [Line Items]
Total RMBS securitization assets	$ 2,045.0	$ 3,956.8
Total CMBS securitization assets	1,345.2	1,817.1
CLOs	10,416.7	9,001.9
Consumer and other loans	1,674.3	1,424.4
U.S. government agency RMBS
Securitization Vehicles [Line Items]
Retained Interests	18.6	105.7
U.S. government agency CMBS
Securitization Vehicles [Line Items]
Retained Interests	48.0	91.8
CLOs
Securitization Vehicles [Line Items]
Retained Interests	60.2	37.2
Consumer and other loans
Securitization Vehicles [Line Items]
Retained Interests	$ 58.7	$ 52.1

X

- Definition

Represents unpaid principal amount of assets in commercial mortgage backed securitization vehicles at the balance sheet date.

+ References

No definition available.

+ Details

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- Definition

Collateralized Loan Obligations Securitization Assets

+ References

No definition available.

+ Details

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X

- Definition

Other Securitization Assets

+ References

No definition available.

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X

- Definition

Represents unpaid principal amount of assets in residential mortgage backed securitization vehicles at the balance sheet date.

+ References

No definition available.

+ Details

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X

- Definition

Securitization vehicles.

+ References

No definition available.

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X

- Definition

Fair value portion of interest continued to be held by a transferor after transferring financial assets to a third party.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 825
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 28
-Subparagraph (c)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482907/825-10-50-28

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 825
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 11
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482907/825-10-50-11

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 825
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 11
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482907/825-10-50-11

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 825
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 10
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482907/825-10-50-10

Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 6: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 7: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2E
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2E

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- Details

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- Details

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- Details

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