Long-Term Debt (Details) (USD $) In Millions, unless otherwise specified	Jul. 31, 2012	Oct. 31, 2011
Summary of Long-term debt
Carrying amount of long-term debt	$ 1,220.1	$ 1,357.6
Less current portion	(21.9)	(12.5)
Long-term debt	1,198.2	1,345.1
Credit Agreement [Member]
Summary of Long-term debt
Carrying amount of long-term debt	288.9	355.4
Less current portion	(21.9)
Long-term debt	267.0
Senior Notes due 2017 [Member]
Summary of Long-term debt
Carrying amount of long-term debt	302.4	302.9
Senior Notes due 2019 [Member]
Summary of Long-term debt
Carrying amount of long-term debt	243.4	242.9
Senior Notes due 2021 [Member]
Summary of Long-term debt
Carrying amount of long-term debt	245.7	280.2
Trade accounts receivable credit facility [Member]
Summary of Long-term debt
Carrying amount of long-term debt	130.0	130.0
Other long-term debt [Member]
Summary of Long-term debt
Carrying amount of long-term debt	$ 9.7	$ 46.2