Stockholders' Equity (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	May 31, 2023	Feb. 28, 2023	May 31, 2022	May 31, 2023	May 31, 2022
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Treasury stock, beginning balance (in shares)		(10,015,507)		(10,015,507)
Beginning balance	$ 3,695,463	$ 3,660,795	$ 3,134,316	$ 3,660,795	$ 3,019,475
Net income	164,442		210,670	289,942	344,927
Dividends on common stock	(13,231)		(13,012)	$ (25,707)	(27,142)
Employee stock options/other (in shares)				308,096
Employee stock options/other	3,876			$ 5,010
Stock awards	0		0	0	0
Stock-based compensation	8,819		9,021	14,686	15,888
Stock repurchases	$ (92,887)		(50,000)	(168,496)	(50,000)
Tax payments associated with stock-based compensation awards				$ (9,748)	(12,153)
Treasury stock, ending balance (in shares)	(13,704,091)			(13,704,091)
Ending balance	$ 3,766,482	$ 3,695,463	$ 3,290,995	$ 3,766,482	$ 3,290,995
Common Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance (in shares)	(100,783,000)	(100,711,000)	(100,711,000)	(100,711,000)	(100,711,000)
Beginning balance	$ 100,783	$ 100,711	$ 100,711	$ 100,711	$ 100,711
Employee stock options/other (in shares)	236,000			308,000
Employee stock options/other	$ 236			$ 308
Ending balance (in shares)	(101,019,000)	(100,783,000)	(100,711,000)	(101,019,000)	(100,711,000)
Ending balance	$ 101,019	$ 100,783	$ 100,711	$ 101,019	$ 100,711
Grantor Stock Ownership Trust
Increase (Decrease) in Stockholders' Equity [Roll Forward]
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)
Ending balance (in shares)	(6,705,000)	(6,705,000)	(6,705,000)	(6,705,000)	(6,705,000)
Ending balance	$ (72,718)	$ (72,718)	$ (72,718)	$ (72,718)	$ (72,718)
Treasury Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Treasury stock, beginning balance (in shares)	(11,587,000)	(10,016,000)	(5,384,000)	(10,016,000)	(5,785,000)
Beginning balance	$ (403,533)	$ (341,461)	$ (202,287)	$ (341,461)	$ (217,383)
Stock awards (in shares)	46,000		64,000	717,000	785,000
Stock awards	$ 1,598		$ 2,376	$ 24,883	$ 29,625
Stock repurchases (in shares)	(2,163,000)	(1,965,442)	(1,520,000)	(4,128,000)	(1,520,000)
Stock repurchases	$ (92,887)		$ (50,000)	$ (168,496)	$ (50,000)
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)	(13,704,000)	(11,587,000)	(6,840,000)	(13,704,000)	(6,840,000)
Ending balance	$ (494,822)	$ (403,533)	$ (249,911)	$ (494,822)	$ (249,911)
Paid-in Capital
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	819,904	836,260	828,238	836,260	848,620
Employee stock options/other	3,640			4,702
Stock awards	(1,598)		(2,376)	(24,883)	(29,625)
Stock-based compensation	8,819		9,021	14,686	15,888
Ending balance	830,765	819,904	834,883	830,765	834,883
Retained Earnings
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	3,256,602	3,143,578	2,499,491	3,143,578	2,379,364
Net income	164,442		210,670	289,942	344,927
Dividends on common stock	(13,231)		(13,012)	(25,707)	(27,142)
Ending balance	3,407,813	3,256,602	2,697,149	3,407,813	2,697,149
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)	$ (5,575)	$ (19,119)	$ (5,575)	$ (19,119)