Derivative Financial Instruments - Unrealized and Realized Gains (Losses) on Derivative Contracts (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
May 31, 2020	May 31, 2019	May 31, 2020	May 31, 2019
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recognized in interest expense on fair value hedge	$ (302)	$ (1,009)	$ (704)	$ (1,978)
Unrealized and realized gains (losses)	24,966	(120,834)	153,623	(212,735)
Interest rate contracts
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized and realized gains (losses)	(4,079)	(34,020)	(5,168)	(103,851)
Foreign exchange contracts
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized and realized gains (losses)	2,053	1,594	(847)	1,418
Equity contracts
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized and realized gains (losses)	9,147	(92,109)	146,035	(120,590)
Commodity contracts
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized and realized gains (losses)	5,291	(1,117)	(781)	1,375
Credit contracts
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized and realized gains (losses)	12,554	4,818	14,384	8,913
Long-term debt
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recognized in interest expense on fair value hedge	(22,306)	(28,213)	(47,173)	(43,769)
Interest rate swaps
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recognized in interest expense on fair value hedge	$ 22,004	$ 27,204	$ 46,469	$ 41,791

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Aggregate net gain (loss) on all derivative instruments recognized in earnings during the period, before tax effects.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
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Total amount of gain (loss) derived from fair value hedges recognized in earnings in the period.

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