Collateralized Transactions - Collateral Pledged (Details) - USD ($) $ in Thousands	Nov. 30, 2019	Nov. 30, 2018
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities Lending Arrangements	$ 1,525,140	$ 1,838,688
Repurchase Agreements	18,756,917	17,193,486
Obligation to return securities received as collateral	9,500	0
Total	20,291,557	19,032,174
Corporate equity securities
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities Lending Arrangements	1,314,395	1,505,218
Repurchase Agreements	129,558	487,124
Obligation to return securities received as collateral	0	0
Total	1,443,953	1,992,342
Corporate debt securities
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities Lending Arrangements	191,311	333,221
Repurchase Agreements	1,730,526	1,853,309
Obligation to return securities received as collateral	0	0
Total	1,921,837	2,186,530
Mortgage-backed and asset-backed securities
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities Lending Arrangements	0	249
Repurchase Agreements	1,745,145	2,820,543
Obligation to return securities received as collateral	0	0
Total	1,745,145	2,820,792
U.S. government and federal agency securities
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities Lending Arrangements	19,434	0
Repurchase Agreements	10,863,997	8,181,947
Obligation to return securities received as collateral	9,500	0
Total	10,892,931	8,181,947
Municipal securities
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities Lending Arrangements	0	0
Repurchase Agreements	498,202	604,274
Obligation to return securities received as collateral	0	0
Total	498,202	604,274
Sovereign securities
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities Lending Arrangements	0	0
Repurchase Agreements	3,016,563	2,945,521
Obligation to return securities received as collateral	0	0
Total	3,016,563	2,945,521
Loans and other receivables
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities Lending Arrangements	0	0
Repurchase Agreements	772,926	300,768
Obligation to return securities received as collateral	0	0
Total	$ 772,926	$ 300,768

Amount, before effects of master netting arrangements, of funds outstanding borrowed in the form of a financial asset repurchase agreement between the entity and another party for the sale and repurchase of identical or substantially the same financial asset at a date certain for a specified price. Includes repurchase-to-maturity transactions and liabilities not subject to a master netting arrangement.

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- Definition

The fair value of collateral received by the entity associated with securities borrowed that must be returned if the counterparty fulfills its obligations. It appears on the balance sheet as a liability and has a corresponding asset that appears on the balance sheet called Securities Received as Collateral.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.15)
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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- Definition

Amount, before effects of master netting arrangements, of financial assets loaned to entities in exchange for collateral and funds outstanding borrowed in the form of a financial asset repurchase agreement between the entity and another party for the sale and repurchase of identical or substantially the same financial assets at a date certain for a specified price. Includes 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 860
-SubTopic 30
-Section 50
-Paragraph 7
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109249958&loc=SL34722452-111729

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 30
-Section 50
-Paragraph 7
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=109249958&loc=SL34722452-111729

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Amount, before effects of master netting arrangements, of financial assets loaned to entities in exchange for collateral. Includes liabilities not subject to a master netting arrangement and financial assets transferred other than securities that qualify as secured borrowings.

+ References

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+ References

No definition available.

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