Income Taxes (Activity Related To Our Gross Unrecognized Tax Benefits) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Nov. 30, 2013	Nov. 30, 2012	Nov. 30, 2011
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Balance at beginning of year	$ 46.7	$ 33.2	$ 20.7
Additions for current year tax positions	10.3	10.6	10.3
Additions for prior year tax positions	2.2	3.9	6.5
Reductions for prior year tax positions	0	0	(3.1)
Statute expirations	(0.1)	(1.2)	(1.2)
Foreign currency translation	(1.1)	0.2	0
Balance at end of year	$ 58.0	$ 46.7	$ 33.2