Accounting Policies Accounting Policies - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	May 31, 2019	May 31, 2018	May 31, 2019	May 31, 2018	Nov. 30, 2018
Summary Of Significant Accounting Policies [Line Items]
Currency translation adjustments	$ 58.6	$ 88.4	$ 21.9	$ 26.4
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	94.1	38.8	275.0	538.7
Sales Allowances Current	$ 119.0	135.5	$ 119.0	135.5	$ 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		$ 1.5		$ 1.2