Nature of Operations (Details) $ in Millions	6 Months Ended
	May 31, 2022 segment	Dec. 01, 2021 USD ($)
Reportable Segments | Merchant Banking and Asset Management Segments
Schedule of Equity Method Investments [Line Items]
Net assets		$ 477
Reportable Segments | Merchant Banking
Schedule of Equity Method Investments [Line Items]
Net assets		194
Reportable Segments | Investment Banking and Capital Markets
Schedule of Equity Method Investments [Line Items]
Net assets		139
Reportable Segments | Investment Banking and Capital Markets | Foursight Capital
Schedule of Equity Method Investments [Line Items]
Net assets		48
Reportable Segments | Asset Management
Schedule of Equity Method Investments [Line Items]
Net assets		$ 55
Jefferies Group
Schedule of Equity Method Investments [Line Items]
Number of business segments | segment	2