Stock-Based Compensation (Summary Of Our Stock Options Outstanding And Exercisable) (Details) shares in Millions	12 Months Ended
	Nov. 30, 2023 $ / shares shares
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options outstanding, Shares | shares	5.3
Options outstanding, Weighted-average remaining life (yrs)	5 years 10 months 17 days
Options outstanding, Weighted-average exercise price (usd per share)	$ 70.43
Options exercisable, Shares | shares	4.0
Options exercisable, Weighted-average remaining life (yrs)	5 years 7 months 20 days
Options exercisable, Weighted-average exercise price (usd per share)	$ 64.74
$35.00 - $56.00
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of exercise price, lower limit	35.00
Range of exercise price, upper limit	$ 56.00
Options outstanding, Shares | shares	2.0
Options outstanding, Weighted-average remaining life (yrs)	2 years 11 months 12 days
Options outstanding, Weighted-average exercise price (usd per share)	$ 48.50
Options exercisable, Shares | shares	2.0
Options exercisable, Weighted-average remaining life (yrs)	2 years 11 months 12 days
Options exercisable, Weighted-average exercise price (usd per share)	$ 48.50
$56.01 - $77.00
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of exercise price, lower limit	56.01
Range of exercise price, upper limit	$ 77.00
Options outstanding, Shares | shares	1.0
Options outstanding, Weighted-average remaining life (yrs)	5 years 10 months 20 days
Options outstanding, Weighted-average exercise price (usd per share)	$ 71.26
Options exercisable, Shares | shares	1.0
Options exercisable, Weighted-average remaining life (yrs)	5 years 10 months 20 days
Options exercisable, Weighted-average exercise price (usd per share)	$ 71.26
$77.01 - $98.00
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of exercise price, lower limit	77.01
Range of exercise price, upper limit	$ 98.00
Options outstanding, Shares | shares	2.3
Options outstanding, Weighted-average remaining life (yrs)	8 years 4 months 17 days
Options outstanding, Weighted-average exercise price (usd per share)	$ 88.76
Options exercisable, Shares | shares	1.0
Options exercisable, Weighted-average remaining life (yrs)	7 years 9 months 25 days
Options exercisable, Weighted-average exercise price (usd per share)	$ 91.21