Financial Instruments - Impact of Fair Value Hedges on Other Comprehensive Income, Accumulated Other Comprehensive Income and Income Statement (Details) - USD ($) $ in Millions	3 Months Ended
	Feb. 28, 2018	Feb. 28, 2017
Derivative Instruments, Gain (Loss) [Line Items]
Interest expense	$ 41.8	$ 14.5
Interest Expense | Fair Value Hedging | Interest rate contracts
Derivative Instruments, Gain (Loss) [Line Items]
Interest expense	0.1	0.3
Other Income | Fair Value Hedging | Foreign exchange contracts
Derivative Instruments, Gain (Loss) [Line Items]
Foreign Currency Transaction Gain (Loss), Realized	2.2	2.7
Other Income | Fair Value Hedging | Loans Payable
Derivative Instruments, Gain (Loss) [Line Items]
Foreign Currency Transaction Gain (Loss), Realized	$ (2.0)	$ (2.5)