Equity Plans (Tables)

12 Months Ended

Aug. 30, 2018

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

Schedule of Option Activity

Option activity for 2018 is summarized as follows:

	Number of Shares		Weighted-Average Exercise Price Per Share		Weighted-Average Remaining Contractual Life (In Years)	Aggregate Intrinsic Value
Outstanding as of August 31, 2017	33		$	19.32
Granted	2		43.30
Exercised	(16	)	17.82
Canceled or expired	(1	)	22.67
Outstanding as of August 30, 2018	18		23.38		4.8	$	527
Exercisable as of August 30, 2018	8		$	21.66	3.2	$	233
Unvested as of August 30, 2018	10		24.61		6.0	294

Stock Options Granted and Valuation Assumptions

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

For the year ended	2018			2017			2016
Stock options granted	2			8			8
Weighted-average grant-date fair value per share	$	18.65		$	8.68		$	6.94
Average expected life in years	5.5			5.5			5.5
Weighted-average expected volatility	44		%	46		%	47		%
Weighted-average risk-free interest rate	2.2		%	1.8		%	1.7		%
Expected dividend yield	0.0		%	0.0		%	0.0		%

Schedule of Restricted Stock Awards Activity

Restricted Stock Awards activity for 2018 is summarized as follows:

	Number of Shares		Weighted-Average Grant Date Fair Value Per Share
Outstanding as of August 31, 2017	19		$	19.78
Granted	4		42.48
Restrictions lapsed	(6	)	21.70
Canceled	(2	)	21.93
Outstanding as of August 30, 2018	15		25.18

For the year ended	2018		2017		2016
Restricted stock award shares granted	4		8		10
Weighted-average grant-date fair value per share	$	42.48	$	18.77	$	15.40
Aggregate vesting-date fair value of shares vested	$	259	$	115	$	71

Employee Stock Purchase Plan Valuation Assumptions

Assumptions used in the Black-Scholes option valuation model for the offering period beginning August 1, 2018 were as follows:

Weighted-average grant-date fair value per share	$	14.55
Average expected life in years	0.5
Weighted-average expected volatility	43		%
Weighted-average risk-free interest rate	2.2		%
Expected dividend yield	0.0		%

Stock-based Compensation Expense by Caption

For the year ended	2018		2017		2016
Stock-based compensation expense by caption
Cost of goods sold	$	83	$	88	$	76
Selling, general, and administrative	61		75		66
Research and development	54		52		49
	$	198	$	215	$	191
Stock-based compensation expense by type of award
Stock options	$	55	$	71	$	79
Restricted stock awards	140		144		112
ESPP	3		—		—
	$	198	$	215	$	191