Consolidated Statements of Financial Condition (Unaudited) (Parenthetical) - USD ($)	Feb. 28, 2025	Nov. 30, 2024
Cash and securities segregated and on deposit for regulatory purposes or deposited with clearing and depository organizations	$ 381,467,000	$ 120,414,000
Financial instruments owned	26,087,291,000	24,138,274,000
Other assets	3,294,571,000	3,072,302,000
Liabilities and Equity
Other secured financings, fair value	22,231,000	24,848,000
Long-term debt	$ 3,075,403,000	$ 2,351,346,000
Equity
Preferred shares, par value (in dollars per share)	$ 1	$ 1
Preferred shares, authorized (in shares)	70,000	70,000
Preferred shares, issued (in shares)	55,125	55,125
Preferred shares, outstanding (in shares)	55,125	55,125
Preferred shares, liquidation preference	$ 17,500	$ 17,500
Common shares, authorized (in shares)	565,000,000	565,000,000
Voting Common Stock
Equity
Common shares, par value (in dollars per share)	$ 1.00	$ 1
Common shares, authorized (in shares)	565,000,000	565,000,000
Common shares, issued after deducting shares held in treasury (in shares)	206,249,504	205,504,272
Common shares, outstanding after deducting shares held in treasury (in shares)	206,249,504	205,504,272
Treasury stock, shares (in shares)	114,868,566	115,613,798
Non-voting Common Stock
Equity
Common shares, par value (in dollars per share)	$ 1	$ 1
Common shares, authorized (in shares)	35,000,000	35,000,000
Common shares, issued after deducting shares held in treasury (in shares)	0	0
Common shares, outstanding after deducting shares held in treasury (in shares)	0	0
Structured Notes | Unsecured Debt
Liabilities and Equity
Long-term debt	$ 3,075,403,000	$ 2,351,346,000
VIEs, Primary Beneficiary
Other assets	472,953,000	429,347,000
Asset Pledged as Collateral
Financial instruments owned	$ 19,399,604,000	$ 18,441,751,000