Other Comprehensive Income Items (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Oct. 31, 2014	Oct. 31, 2013	Oct. 31, 2012
After-tax changes in accumulated other comprehensive income (loss)
Beginning of year balance	$ 35.6	$ 21.6	$ 54.1
Current period activity	(30.2)	14.0	(32.5)
End of year balance	5.4	35.6	21.6
Cumulative translation adjustment
After-tax changes in accumulated other comprehensive income (loss)
Beginning of year balance	39.5	33.2	62.4
Current period activity	(33.5)	6.3	(29.2)
End of year balance	6.0	39.5	33.2
Unrealized gain (loss) on derivatives
After-tax changes in accumulated other comprehensive income (loss)
Beginning of year balance	(3.9)	(11.6)	(8.3)
Current period activity	3.3	7.7	(3.3)
End of year balance	$ (0.6)	$ (3.9)	$ (11.6)