Comprehensive Income-Components of Comprehensive Income (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Aug. 31, 2012	Aug. 31, 2011	Aug. 31, 2012	Aug. 31, 2011
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Net income	$ 104.4	$ 92.0	$ 259.3	$ 242.4
Net income attributable to non-controlling interest	0.4	0.3	1.6	0.7
Unrealized components of Pension plans, net of tax	0.4	5.9	7.8	6.9
Currency translation adjustments	38.8	(1.1)	(36.8)	114.4
Change in derivative financial instruments, net of tax	(1.3)	1.6	(1.5)	1.3
Comprehensinve (loss) income	$ 142.7	$ 98.7	$ 230.4	$ 365.7