Equity Plans (Tables)

6 Months Ended

Mar. 03, 2016

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Assumptions used in Black-Scholes option valuation model

Stock options granted and assumptions used in the Black-Scholes option valuation model were as follows:

	Quarter ended						Six months ended
	March 3, 2016			March 5, 2015			March 3, 2016			March 5, 2015
Stock options granted	5			7			7			8
Weighted-average grant-date fair value per share	$	6.59		$	15.34		$	7.01		$	14.96
Average expected life in years	5.5			5.6			5.5			5.6
Weighted-average expected volatility	47		%	44		%	47		%	45		%
Weighted-average risk-free interest rate	1.7		%	1.7		%	1.7		%	1.7		%

Schedule restricted stock awards activity

Restricted Stock Awards activity was as follows:

	Quarter ended				Six months ended
	March 3, 2016		March 5, 2015		March 3, 2016		March 5, 2015
Restricted stock awards granted	6		4		9		6
Weighted-average grant-date fair value per share	$	14.71	$	35.85	$	15.84	$	34.33

Stock-based compensation expense by caption and type of award

	Quarter ended				Six months ended
	March 3, 2016		March 5, 2015		March 3, 2016		March 5, 2015
Stock-based compensation expense by caption
Cost of goods sold	$	21	$	19	$	38	$	31
Selling, general, and administrative	19		18		37		33
Research and development	15		12		26		20
	$	55	$	49	$	101	$	84
Stock-based compensation expense by type of award
Stock options	$	22	$	23	$	42	$	41
Restricted stock awards	33		26		59		43
	$	55	$	49	$	101	$	84