Accounting Policies Accounting Policies - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended
	Feb. 28, 2019	Feb. 28, 2018	Nov. 30, 2018
Summary Of Significant Accounting Policies [Line Items]
Currency translation adjustments	$ 36.7	$ 62.0
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	180.9	499.9
Sales Allowances Current	$ 109.3		$ 142.1
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification		20.9
Adjustment
Summary Of Significant Accounting Policies [Line Items]
Currency translation adjustments		0.3
Comprehensive Income (Loss), Net of Tax, Attributable to Parent		$ 0.3