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Business Segment Information - Total Assets by Geographical Area (Detail) (USD $) In Millions, unless otherwise specified	Jan. 31, 2013	Oct. 31, 2012
Total assets by geographical area
Total assets	$ 3,942.9	$ 3,856.9
North America [Member]
Total assets by geographical area
Total assets	1,705.9	1,717.2
Europe, Middle East, and Africa [Member]
Total assets by geographical area
Total assets	1,643.4	1,555.0
Asia Pacific and Latin America [Member]
Total assets by geographical area
Total assets	$ 593.6	$ 584.7

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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