Variable Interest Entities - Schedule of Consolidated VIEs (Details) - USD ($) $ in Thousands		Feb. 28, 2022	Nov. 30, 2021
Variable Interest Entity [Line Items]
Assets	[1]	$ 60,036,451	$ 60,404,110
Liabilities	[1]	49,348,505	49,674,070
Noncontrolling interests		58,619	25,885
Variable interest entities, primary beneficiary
Variable Interest Entity [Line Items]
Assets		1,270,000	1,050,000
Liabilities		3,680,000	4,640,000
Noncontrolling interests		32,500
Variable interest entities, primary beneficiary | Securities purchased under agreements to resell
Variable Interest Entity [Line Items]
VIE assets, not eliminated in consolidation		18,000
Variable interest entities, primary beneficiary | Receivables
Variable Interest Entity [Line Items]
VIE assets, eliminated in consolidation		1,400	1,200
Variable interest entities, primary beneficiary | Other assets
Variable Interest Entity [Line Items]
VIE assets, eliminated in consolidation		45,700	56,500
Variable interest entities, primary beneficiary | Other secured financings
Variable Interest Entity [Line Items]
VIE liabilities, eliminated in consolidation		58,600	36,700
Variable interest entities, primary beneficiary | Other liabilities
Variable Interest Entity [Line Items]
VIE liabilities, eliminated in consolidation		84,100	75,300
Variable interest entities, primary beneficiary | Secured Funding Vehicles
Variable Interest Entity [Line Items]
Assets		3,682,500	4,615,400
Liabilities		3,662,400	4,568,200
Variable interest entities, primary beneficiary | Secured Funding Vehicles | Cash
Variable Interest Entity [Line Items]
Assets		11,600	3,800
Variable interest entities, primary beneficiary | Secured Funding Vehicles | Financial instruments owned, at fair value
Variable Interest Entity [Line Items]
Assets		239,500	173,100
Variable interest entities, primary beneficiary | Secured Funding Vehicles | Securities purchased under agreements to resell
Variable Interest Entity [Line Items]
Assets		2,554,800	3,697,100
Variable interest entities, primary beneficiary | Secured Funding Vehicles | Receivables
Variable Interest Entity [Line Items]
Assets		742,900	626,800
Variable interest entities, primary beneficiary | Secured Funding Vehicles | Other assets
Variable Interest Entity [Line Items]
Assets		133,700	114,600
Variable interest entities, primary beneficiary | Secured Funding Vehicles | Financial instruments sold, not yet purchased, at fair value
Variable Interest Entity [Line Items]
Liabilities		0	0
Variable interest entities, primary beneficiary | Secured Funding Vehicles | Other secured financings
Variable Interest Entity [Line Items]
Liabilities		3,609,500	4,521,600
Variable interest entities, primary beneficiary | Secured Funding Vehicles | Repurchase agreements
Variable Interest Entity [Line Items]
Liabilities		0	0
Variable interest entities, primary beneficiary | Secured Funding Vehicles | Other liabilities
Variable Interest Entity [Line Items]
Liabilities		52,900	46,600
Variable interest entities, primary beneficiary | Secured Funding Vehicles | Noncontrolling Interests
Variable Interest Entity [Line Items]
Noncontrolling interests		0	0
Variable interest entities, primary beneficiary | Other
Variable Interest Entity [Line Items]
Assets		193,200	187,000
Liabilities		157,900	184,400
Variable interest entities, primary beneficiary | Other | Cash
Variable Interest Entity [Line Items]
Assets		0	0
Variable interest entities, primary beneficiary | Other | Financial instruments owned, at fair value
Variable Interest Entity [Line Items]
Assets		64,700	146,400
Variable interest entities, primary beneficiary | Other | Securities purchased under agreements to resell
Variable Interest Entity [Line Items]
Assets		18,000	0
Variable interest entities, primary beneficiary | Other | Receivables
Variable Interest Entity [Line Items]
Assets		54,200	40,600
Variable interest entities, primary beneficiary | Other | Other assets
Variable Interest Entity [Line Items]
Assets		56,300	0
Variable interest entities, primary beneficiary | Other | Financial instruments sold, not yet purchased, at fair value
Variable Interest Entity [Line Items]
Liabilities		18,000	109,100
Variable interest entities, primary beneficiary | Other | Other secured financings
Variable Interest Entity [Line Items]
Liabilities		0	0
Variable interest entities, primary beneficiary | Other | Repurchase agreements
Variable Interest Entity [Line Items]
Liabilities		47,100	0
Variable interest entities, primary beneficiary | Other | Other liabilities
Variable Interest Entity [Line Items]
Liabilities		92,800	75,300
Variable interest entities, primary beneficiary | Other | Noncontrolling Interests
Variable Interest Entity [Line Items]
Noncontrolling interests		$ 32,500	$ 0

[1] Total assets include assets related to variable interest entities of $1.27 billion and $1.05 billion at February 28, 2022 and November 30, 2021, respectively, Total liabilities include liabilities related to variable interest entities of $3.68 billion and $4.64 billion at February 28, 2022 and November 30, 2021, respectively, and Noncontrolling interests include noncontrolling interests related to variable interest entities of $32.5 million at February 28, 2022. See Note 7 for additional information related to variable interest entities.