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Stock-Based Compensation (Tables)

3 Months Ended

Jan. 31, 2019

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Summarized Activity Related to Stock Options

The following table summarizes activity related to stock options for the three months ended January 31, 2019:

		Number of Options				Weighted-Average Exercise Price Per Share				Aggregate Intrinsic Value				Weighted Average Remaining Term
Outstanding at October 31, 2018			1,885			$	85.33
Granted			348			$	124.89
Exercised			(66	)		$	54.40
Forfeited or expired			(6	)		$	110.74
Outstanding at January 31, 2019			2,161			$	92.58			$	80,095			6.9 years
Vested or expected to vest at January 31, 2019			2,133			$	92.18			$	79,920			6.9 years
Exercisable at January 31, 2019			1,253			$	75.89			$	67,355			5.6 years

Fair Value Assumptions of Stock Options

The fair value of each option grant was estimated at the date of grant using the Black-Scholes option-pricing model with the following assumptions:

Three months ended		January 31, 2019		January 31, 2018
Expected volatility		24.1%-24.5%		24.0%-26.7%
Expected dividend yield		1.04%		0.97%
Risk-free interest rate		2.84%-2.95%		2.09%-2.20%
Expected life of the option (in years)		5.3-6.2		5.4-6.2

Summarized Activity Related to Restricted Stock

The following table summarizes activity related to restricted shares during the three months ended January 31, 2019:

		Number of Shares				Weighted-Average Grant Date Fair Value
Restricted shares at October 31, 2018			53			$	108.82
Granted			20			$	124.90
Vested			(22	)		$	93.67
Restricted shares at January 31, 2019			51			$	121.55

Summarized Activity Related to Restricted Stock Units

The following table summarizes activity related to restricted share units during the three months ended January 31, 2019:

		Number of Units				Weighted-Average Grant Date Fair Value
Restricted share units at October 31, 2018			0			$	—
Granted			8			$	126.83
Restricted share units at January 31, 2019			8			$	126.83

Summarized Activity Related to Director Deferred Compensation Shares

The following table summarizes activity related to director deferred compensation share equivalent units during the three months ended January 31, 2019:

		Number of Shares				Weighted-Average Grant Date Fair Value
Outstanding at October 31, 2018			107			$	51.24
Dividend equivalents			1			$	120.03
Outstanding at January 31, 2019			108			$	51.44

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Tabular disclosure of the changes in outstanding nonvested restricted stock units.

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