Stockholders' Equity (Tables)

12 Months Ended

Sep. 28, 2019

Stockholders' Equity [Abstract]

Stock Option Activity

Information related to the equity incentive plans as of the fiscal years ended are as follows:

	2019					2018
	Number of Shares (in thousands)			Weighted Average Exercise Price		Number of Shares (in thousands)			Weighted Average Exercise Price
Options outstanding, beginning of period		10,744		$	32.40		10,760		$	28.18
Options granted		2,259			47.66		1,453			54.33
Options exercised		(2,476	)		22.41		(1,176	)		18.62
Options forfeited or cancelled		(264	)		46.07		(293	)		41.30
Options outstanding, end of period		10,263		$	37.82		10,744		$	32.40
Option price range at end of period	$	3.04-54.33				$	3.04-54.33
Options exercisable at end of period		4,720					5,154
Options available for grant at period end		5,099					7,094
Weighted average fair value of options granted during period	$	15.34				$	17.84

Valuation Assumptions Used for Options Granted

The fair value for options granted has been estimated at the date of grant using a Black-Scholes model, generally with the following weighted average assumptions:

	2019			2018			2017
Risk-free interest rate		2.5	%		2.7	%		2.2	%
Dividend yield		0.0	%		0.0	%		0.0	%
Volatility factor		26.3	%		26.1	%		26.0	%
Expected option life	6.5 years			6.5 years			6.5 years

Options Outstanding

The following table summarizes information about the options outstanding as of fiscal 2019:

Range of Exercise Prices		Number Outstanding (in thousands)		Intrinsic Value of Outstanding (in millions)		Weighted Remaining Contractual Life	Weighted Exercise Price		Number Exercisable (in thousands)		Intrinsic Value of Exercisable (in millions)		Unrecognized Compensation (in millions)		Weighted Recognition Period
$	3.04-54.33		10,263	$	69	6.5 years	$	37.82		4,720	$	54	$	5	2.1 years