Stock-Based Compensation (Assumptions Of Stock Compensation Plans) (Details)	12 Months Ended
	Nov. 30, 2023	Nov. 30, 2022	Nov. 30, 2021
Share-Based Payment Arrangement [Abstract]
Risk free interest rate, minimum	3.50%	0.20%	0.00%
Risk free interest rate, maximum	4.90%	2.50%	1.80%
Dividend yield	1.90%	1.50%	1.50%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate	21.80%	21.20%	21.30%
Expected lives	7 years 3 months 18 days	7 years 7 months 6 days	7 years 10 months 24 days
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercisable period	10 years