Income Taxes - Valuation Allowance Rollforward (Details) - SEC Schedule, 12-09, Valuation Allowance, Deferred Tax Asset [Member] - USD ($) $ in Millions	12 Months Ended
	Nov. 30, 2018	Nov. 30, 2017	Nov. 30, 2016
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Beginning balance December 1	$ 88.8	$ 14.1	$ 10.2
Additions (Reductions) Charged to Expense	(32.2)	79.9	4.0
Additions (Reductions) Charged to Other Accounts	(2.9)	(2.6)	0.0
Reduction due to Entity Disposition	0.0	(3.9)	0.0
Foreign Currency Effects	(0.5)	1.3	(0.1)
Ending balance November 30	$ 53.2	$ 88.8	$ 14.1