Financial Instruments (Fair Value Hedges) (Details) - USD ($) $ in Millions	12 Months Ended
	Nov. 30, 2017	Nov. 30, 2016	Nov. 30, 2015
Derivative Instruments, Gain (Loss) [Line Items]
Interest expense	$ 95.7	$ 56.0	$ 53.3
Other income, net	3.5	4.2	1.1
Foreign Exchange Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Notional Amount		189.4
Investment Foreign Currency, Contract, Foreign Currency Amount	405.9	449.2
Fair Value Hedges [Member] | Foreign Exchange Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Notional Amount	281.9	109.9
Fair Value Hedges [Member] | Interest Expense [Member] | Interest Rate Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Interest expense	0.9	1.6	$ 5.1
Fair Value Hedges [Member] | Other Income [Member] | Foreign Exchange Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Foreign Currency Transaction Gain (Loss), Realized	12.8	(3.5)
Other income, net	12.8	(3.5)
Fair Value Hedges [Member] | Other Income [Member] | Loans Payable [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Foreign Currency Transaction Gain (Loss), Realized	(14.1)	3.1
Other income, net	$ (14.1)	$ 3.1