Equity Plans (Tables)

12 Months Ended

Aug. 31, 2017

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

Schedule option activity

Option activity for 2017 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 September 1, 2016	42		$	16.37
Granted	8		19.61
Exercised	(14	)	10.17
Canceled or expired	(3	)	22.55
Outstanding as of August 31, 2017	33		19.32		4.4	$	438
Exercisable as of August 31, 2017	17		$	17.44	2.7	$	255
Unvested as of August 31, 2017	16		21.25		6.2	183

Stock options granted and assumptions used in Black-Scholes option valuation model

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

For the year ended	2017			2016			2015
Stock options granted	8			8			8
Weighted-average grant-date fair value per share	$	8.68		$	6.94		$	14.79
Average expected life in years	5.5			5.5			5.6
Weighted-average expected volatility	46		%	47		%	45		%
Weighted-average risk-free interest rate	1.8		%	1.7		%	1.7		%

Schedule restricted stock awards activity

Restricted Stock Awards activity for 2017 is summarized as follows:

	Number of Shares		Weighted-Average Grant Date Fair Value Per Share
Outstanding as of September 1, 2016	18		$	20.24
Granted	8		18.77
Restrictions lapsed	(6	)	19.53
Canceled	(1	)	20.59
Outstanding as of August 31, 2017	19		19.78

For the year ended	2017		2016		2015
Restricted stock award shares granted	8		10		7
Weighted-average grant-date fair value per share	$	18.77	$	15.40	$	32.60
Aggregate vesting-date fair value of shares vested	$	115	$	71	$	155

Stock-based compensation expense by caption

For the year ended	2017		2016		2015
Stock-based compensation expense by caption
Cost of goods sold	$	88	$	76	$	64
Selling, general, and administrative	75		66		61
Research and development	52		49		42
Other	—		—		1
	$	215	$	191	$	168
Stock-based compensation expense by type of award
Stock options	$	71	$	79	$	81
Restricted stock awards	144		112		87
	$	215	$	191	$	168