Financial Instruments- Impact of Fair Value Hedges on Other Comprehensive Income, Accumulated Other Comprehensive Income and Income Statement (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	May 31, 2014	May 31, 2013	May 31, 2014	May 31, 2013
Derivative Instruments, Gain (Loss) [Line Items]
Interest expense	$ 12.5	$ 13.5	$ 24.9	$ 27.4
Interest Expense [Member] | Fair Value Hedging [Member] | Interest rate contract [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Interest expense	$ 1.3	$ 1.3	$ 2.5	$ 2.5