Business Segment Information (Details 3) (USD $) In Millions, unless otherwise specified	Apr. 30, 2012	Oct. 31, 2011
Total assets by geographical area
Total assets	$ 4,030.2	$ 4,207.3
North America [Member]
Total assets by geographical area
Total assets	1,774.1	1,779.5
Europe, Middle East, and Africa [Member]
Total assets by geographical area
Total assets	1,632.0	1,750.3
Asia Pacific and Latin America [Member]
Total assets by geographical area
Total assets	$ 624.1	$ 677.5