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, 2017	Feb. 29, 2016
Derivative Instruments, Gain (Loss) [Line Items]
Interest expense	$ 14.5	$ 13.9
Fair Value Hedging [Member] | Foreign Exchange Contract [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Notional Amount	113.0
Other Income [Member] | Fair Value Hedging [Member] | Foreign Exchange Contract [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Foreign Currency Transaction Gain (Loss), Realized	(2.7)	0.0
Other Income [Member] | Fair Value Hedging [Member] | Loans Payable [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Foreign Currency Transaction Gain (Loss), Realized	2.5	0.0
Interest Expense [Member] | Fair Value Hedging [Member] | Interest Rate Contract [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Interest expense	$ 0.3	$ 0.6
Interest Rate Swap [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Weighted average fixed rate on issuance of notes	2.49%