Stockholders' Equity (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Aug. 31, 2023	Feb. 28, 2023	Aug. 31, 2022	Aug. 31, 2023	Aug. 31, 2022
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Treasury stock, beginning balance (in shares)		(10,015,507)		(10,015,507)
Beginning balance	$ 3,766,482	$ 3,660,795	$ 3,290,995	$ 3,660,795	$ 3,019,475
Net income	149,933		255,329	439,875	600,256
Dividends on common stock	(15,928)		(12,772)	$ (41,635)	(39,914)
Employee stock options/other (in shares)				548,176
Employee stock options/other	3,598			$ 8,608
Stock awards				0	0
Stock-based compensation	9,248		7,056	23,934	22,944
Stock repurchases	$ (83,205)		(50,000)	(251,701)	(100,000)
Tax payments associated with stock-based compensation awards				$ (9,748)	(12,153)
Treasury stock, ending balance (in shares)	(15,235,409)			(15,235,409)
Ending balance	$ 3,830,128		$ 3,490,608	$ 3,830,128	$ 3,490,608
Common Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Number of shares, beginning balance (in shares)	101,019,000	100,711,000	100,711,000	100,711,000	100,711,000
Beginning balance	$ 101,019	$ 100,711	$ 100,711	$ 100,711	$ 100,711
Employee stock options/other (in shares)	240,000			548,000
Employee stock options/other	$ 240			$ 548
Number of shares, ending balance (in shares)	101,259,000		100,711,000	101,259,000	100,711,000
Ending balance	$ 101,259		$ 100,711	$ 101,259	$ 100,711
Grantor Stock Ownership Trust
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Number of shares, beginning balance (in shares)	6,705,000	6,705,000	6,705,000	6,705,000	6,705,000
Beginning balance	$ (72,718)	$ (72,718)	$ (72,718)	$ (72,718)	$ (72,718)
Number of shares, ending balance (in shares)	6,705,000		6,705,000	6,705,000	6,705,000
Ending balance	$ (72,718)		$ (72,718)	$ (72,718)	$ (72,718)
Treasury Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Treasury stock, beginning balance (in shares)	(13,704,000)	(10,016,000)	(6,840,000)	(10,016,000)	(5,785,000)
Beginning balance	$ (494,822)	$ (341,461)	$ (249,911)	$ (341,461)	$ (217,383)
Stock awards (in shares)				717,000	785,000
Stock awards				$ 24,883	$ 29,625
Stock repurchases (in shares)	(1,531,000)	(1,965,442)	(1,582,000)	(5,659,000)	(3,102,000)
Stock repurchases	$ (83,205)		$ (50,000)	$ (251,701)	$ (100,000)
Tax payments associated with stock-based compensation awards (in shares)				(277,000)	(320,000)
Tax payments associated with stock-based compensation awards				$ (9,748)	$ (12,153)
Treasury stock, ending balance (in shares)	(15,235,000)		(8,422,000)	(15,235,000)	(8,422,000)
Ending balance	$ (578,027)		$ (299,911)	$ (578,027)	$ (299,911)
Paid-in Capital
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	830,765	$ 836,260	834,883	836,260	848,620
Employee stock options/other	3,358			8,060
Stock awards				(24,883)	(29,625)
Stock-based compensation	9,248		7,056	23,934	22,944
Ending balance	843,371		841,939	843,371	841,939
Retained Earnings
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	3,407,813	3,143,578	2,697,149	3,143,578	2,379,364
Net income	149,933		255,329	439,875	600,256
Dividends on common stock	(15,928)		(12,772)	(41,635)	(39,914)
Ending balance	3,541,818		2,939,706	3,541,818	2,939,706
Accumulated Other Comprehensive Loss
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	(5,575)	$ (5,575)	(19,119)	(5,575)	(19,119)
Ending balance	$ (5,575)		$ (19,119)	$ (5,575)	$ (19,119)