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, 2016	May 31, 2015	May 31, 2016	May 31, 2015
Derivative Instruments, Gain (Loss) [Line Items]
Interest expense	$ 13.7	$ 13.0	$ 27.6	$ 25.9
Interest Expense [Member] | Fair Value Hedging [Member] | Interest Rate Contract [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Interest expense	$ 0.3	$ 1.3	$ 0.9	$ 2.5