Stock-Based Benefit Plans (Stock Options - Assumptions Table) (Details 1) - Employee Stock Option [Member] - $ / shares	12 Months Ended
Oct. 31, 2018	Oct. 31, 2017	Oct. 31, 2016
Weighted-average assumptions and the fair value used for stock option grants
Weighted-average volatility	30.33%	34.72%	34.69%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate	0.67%	0.00%	0.00%
Weighted-average grant date fair value per share of options granted	$ 16.09	$ 12.16	$ 11.24
Minimum [Member]
Weighted-average assumptions and the fair value used for stock option grants
Expected volatility	27.66%	29.93%	32.03%
Risk-free interest rate	2.17%	1.96%	1.58%
Expected life (years)	5 years	4 years 219 days	4 years 205 days
Maximum [Member]
Weighted-average assumptions and the fair value used for stock option grants
Expected volatility	31.83%	41.05%	42.31%
Risk-free interest rate	2.35%	2.52%	2.14%
Expected life (years)	8 years 6 months	9 years 88 days	9 years 62 days

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- Definition

The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

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The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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- Definition

The risk-free interest rate assumption that is used in valuing an option on its own shares.

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- Definition

Weighted average expected volatility rate of share-based compensation awards.

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- Definition

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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- Definition

Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (f)(2)(i)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 14.D.2)
-URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809

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