Income Taxes (Schedule of Income Before Income Tax, Domestic Foreign) (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
Oct. 31, 2018	Jul. 31, 2018	Apr. 30, 2018	Jan. 31, 2018	Oct. 31, 2017	Jul. 31, 2017	Apr. 30, 2017	Jan. 31, 2017	Oct. 31, 2018	Oct. 31, 2017	Oct. 31, 2016
Income (loss) before income taxes:
United States									$ (122.8)	$ 7.8	$ 31.5
Foreign									454.7	386.2	264.1
Income before income taxes	$ 112.7	$ 90.4	$ 54.0	$ 74.8	$ 96.6	$ 107.7	$ 109.5	$ 80.1	331.9	394.0	295.6
Income tax provision									$ 192.0	$ 21.1	$ 20.7

The portion of earnings or loss from continuing operations before income taxes that is attributable to domestic operations.

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-Name Accounting Standards Codification
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The portion of earnings or loss from continuing operations before income taxes that is attributable to foreign operations, which is defined as Income or Loss generated from operations located outside the entity's country of domicile.

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Amount of income (loss) from continuing operations before deduction of income tax expense (benefit) and income (loss) attributable to noncontrolling interest, and addition of income (loss) from equity method investments.

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-Subparagraph (h)
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-Publisher FASB
-Name Accounting Standards Codification
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