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		6 Months Ended
	May 31, 2018	May 31, 2017	May 31, 2018	May 31, 2017
Derivative Instruments, Gain (Loss) [Line Items]
Interest expense	$ 44.2	$ 14.9	$ 86.0	$ 29.4
Interest Expense | Fair Value Hedging | Interest rate contracts
Derivative Instruments, Gain (Loss) [Line Items]
Interest expense	0.1	0.2	0.2	0.5
Other Income | Fair Value Hedging | Foreign exchange contracts
Derivative Instruments, Gain (Loss) [Line Items]
Foreign Currency Transaction Gain (Loss), Realized	(0.4)	5.0	(2.6)	2.3
Other Income | Fair Value Hedging | Loans Payable
Derivative Instruments, Gain (Loss) [Line Items]
Foreign Currency Transaction Gain (Loss), Realized	$ 0.2	$ (5.4)	$ 2.2	$ (2.9)