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, 2013	Nov. 30, 2012	Nov. 30, 2011
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Outstanding at Beginning of year, Shares	5.1	6.6	7.4
Granted, Shares	0.9	0.9	1.0
Exercised, Shares	(1.3)	(2.4)	(1.7)
Forfeited, Shares	(0.1)	0	(0.1)
Outstanding at End of year, Shares	4.6	5.1	6.6
Exercisable at end of year, Number of Shares	2.7	2.7	4.2
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)	$ 40.06	$ 34.98	$ 32.01
Granted, Weighted-average exercise price (usd per share)	$ 71.60	$ 54.27	$ 47.40
Exercised, Weighted-average exercise price (usd per share)	$ 34.11	$ 31.43	$ 29.35
Forfeited, Weighted-average exercise price (usd per share)	$ 57.33	$ 0.00	$ 30.08
Outstanding at end of year, Weighted-average exercise price (usd per share)	$ 47.73	$ 40.06	$ 34.98
Exercisable at end of year, Weighted-average exercise price (usd per share)	$ 39.62	$ 34.99	$ 32.26