Equity Plans (Tables)

12 Months Ended

Sep. 03, 2020

Share-based Payment Arrangement [Abstract]

Schedule of Restricted Stock Awards Activity

	Number of Shares	Weighted-Average Grant Date Fair Value Per Share
Outstanding as of August 29, 2019	16	$	34.72
Granted	8	46.44
Restrictions lapsed	(6)	29.34
Canceled	(1)	40.59
Outstanding as of September 3, 2020	17	42.13

For the year ended	2020		2019		2018
Restricted stock award shares granted	8		9		4
Weighted-average grant-date fair value per share	$	46.44	$	41.11	$	42.48
Aggregate vesting-date fair value of shares vested	$	294	$	248	$	259

Employee Stock Purchase Plan Valuation Assumptions

For the year ended	2020			2019			2018
Weighted-average grant-date fair value per share	$	14.24		$	11.60		$	14.55
Average expected life in years	0.5			0.5			0.5
Weighted-average expected volatility	45.0		%	45.0		%	43.0		%
Weighted-average risk-free interest rate	0.8		%	2.2		%	2.2		%
Expected dividend yield	0.0		%	0.0		%	0.0		%

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	2019			2018
Stock options granted	—			2
Weighted-average grant-date fair value per share	$	19.50		$	18.65
Average expected life in years	5.4			5.5
Weighted-average expected volatility	44.0		%	44.0		%
Weighted-average risk-free interest rate	2.9		%	2.2		%
Expected dividend yield	0.0		%	0.0		%

Stock-based Compensation Expense

For the year ended	2020		2019		2018
Stock-based compensation expense by caption
Cost of goods sold	$	139	$	102	$	83
Selling, general, and administrative	103		73		61
Research and development	86		68		54
	$	328	$	243	$	198
Stock-based compensation expense by type of award
Restricted stock awards	$	272	$	178	$	140
ESPP	39		32		3
Stock options	17		33		55
	$	328	$	243	$	198