Income Taxes (Narrative) (Details) - USD ($) $ in Millions	6 Months Ended
Apr. 30, 2016	Apr. 30, 2015	Nov. 01, 2015
Components of Income Tax Expense (Benefit), Continuing Operations [Abstract]
Effective tax rate (ETR)	5.40%	8.60%
Unrecognized tax benefits that would impact ETR			$ 29.4
Interest and penalties			3.7
Unrecognized tax benefits related to tax positions			$ 10.0

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- Definition

Amount of decrease reasonably possible in the next twelve months for the unrecognized tax benefit.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
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-Section 50
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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.

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The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.

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