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Borrowings - Maturities of Long-Term Debt (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Feb. 28, 2026	Feb. 28, 2025	Nov. 30, 2025
Debt Instrument [Line Items]
Total	$ 17,229,419		$ 15,895,891
Long-term debt	$ 3,686,758		$ 3,734,843
Weighted-average interest rate	5.10%		5.11%
Gains (losses) recognized in interest expense on fair value hedge	$ (9,795)	$ (12,319)
Long-term debt
Debt Instrument [Line Items]
Gains (losses) recognized in interest expense on fair value hedge	(10,916)	$ (6,691)
Fair value, inputs, level 2 and level 3
Debt Instrument [Line Items]
Long-term debt	17,384,685		$ 16,122,970
Unsecured Debt
Debt Instrument [Line Items]
Total	14,128,556		12,719,797
Long-term debt gross	2,700,000		2,680,000
Unsecured Debt | Long-term debt
Debt Instrument [Line Items]
Gains (losses) recognized in interest expense on fair value hedge	$ 131,900		$ 142,800
Unsecured Debt | Minimum
Debt Instrument [Line Items]
Interest rate range	0.00%		0.00%
Unsecured Debt | Maximum
Debt Instrument [Line Items]
Interest rate range	7.40%		7.50%
Unsecured Debt | Subsidiaries
Debt Instrument [Line Items]
Total	$ 695,164		$ 792,484
Secured Debt | Secured Credit Facility
Debt Instrument [Line Items]
Total	703,000		803,200
Secured Debt | Subsidiaries
Debt Instrument [Line Items]
Total	2,405,699		2,383,610
Fixed rate | Unsecured Debt
Debt Instrument [Line Items]
2026	925,851		869,461
2027	1,118,840		1,117,106
2028	995,065		1,029,501
2029	597,501		586,495
2030	1,051,878		1,063,637
2031 and Later	6,225,104		4,782,178
Fixed rate | Unsecured Debt | Subsidiaries
Debt Instrument [Line Items]
2029	0		3,937
2030	0		1,416
2031 and Later	641,706		633,372
Fixed rate | Secured Debt | Subsidiaries
Debt Instrument [Line Items]
2026	112,725		166,414
2027	653,483		630,114
2028	758,938		746,556
2029	230,994		191,068
Variable rate | Unsecured Debt
Debt Instrument [Line Items]
2026	46,087		45,235
2029	1,313		1,312
2031 and Later	71,928		71,924
Variable rate | Unsecured Debt | Subsidiaries
Debt Instrument [Line Items]
2026	0		100,000
2027	53,458		53,759
Variable rate | Secured Debt | Subsidiaries
Debt Instrument [Line Items]
2026	0		525,000
2027	124,559		124,458
2028	525,000		0
Structured Notes | Unsecured Debt
Debt Instrument [Line Items]
2026	69,176		102,743
2027	96,528		94,777
2028	152,160		176,009
2029	138,890		178,956
2030	431,876		443,825
2031 and Later	2,206,359		2,156,638
Long-term debt	$ 3,686,758		$ 3,734,843

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