Stock-Based Compensation (Summary Of Stock Option Activity) (Details) (Stock Options [Member], USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Nov. 30, 2014	Nov. 30, 2013	Nov. 30, 2012
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Outstanding at Beginning of year, Shares	4.6	5.1	6.6
Granted, Shares	1.1	0.9	0.9
Exercised, Shares	(0.8)	(1.3)	(2.4)
Forfeited, Shares	(0.1)	(0.1)	0
Outstanding at End of year, Shares	4.8	4.6	5.1
Exercisable at end of year, Number of Shares	2.8	2.7	2.7
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]
Outstanding at beginning of year, Weighted-average exercise price (usd per share)	$ 47.73	$ 40.06	$ 34.98
Granted, Weighted-average exercise price (usd per share)	$ 71.12	$ 71.60	$ 54.27
Exercised, Weighted-average exercise price (usd per share)	$ 37.19	$ 34.11	$ 31.43
Forfeited, Weighted-average exercise price (usd per share)	$ 67.22	$ 57.33	$ 0.00
Outstanding at end of year, Weighted-average exercise price (usd per share)	$ 54.17	$ 47.73	$ 40.06
Exercisable at end of year, Weighted-average exercise price (usd per share)	$ 45.71	$ 39.62	$ 34.99