Other Comprehensive Income Items (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Jul. 31, 2013	Jul. 31, 2012	Jul. 31, 2013	Jul. 31, 2012
Other Comprehensive Income (Loss), Before Tax
Cumulative translation adjustment	$ (9.4)	$ (18.5)	$ (10.7)	$ (40.2)
Net unrealized gain (loss) on derivatives	4.6	(7.1)	10.6	(7.9)
Total other comprehensive loss, before tax amount	(4.8)	(25.6)	(0.1)	(48.1)
Other Comprehensive Income (Loss), Tax (Expense) Credit
Net unrealized gain (loss) on derivatives	(1.6)	2.4	(3.7)	2.7
Total other comprehensive loss, tax (expense) credit	(1.6)	2.4	(3.7)	2.7
Other Comprehensive Income (Loss), After Tax
Cumulative translation adjustment	(9.4)	(18.5)	(10.7)	(40.2)
Net unrealized gain (loss) on derivatives	3.0	(4.7)	6.9	(5.2)
Other Comprehensive loss, Net of Income Taxes	$ (6.4)	$ (23.2)	$ (3.8)	$ (45.4)