Equity Plans

3 Months Ended

Nov. 30, 2017

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

Equity Plans

Equity Plans

As of November 30, 2017, 99 million shares of our common stock were available for future awards under our equity plans.

Stock Options

Quarter ended	November 30, 2017			December 1, 2016
Stock options granted	1			2
Weighted-average grant-date fair value per share	$	17.67		$	7.66
Average expected life in years	5.6			5.7
Weighted-average expected volatility	44		%	46		%
Weighted-average risk-free interest rate	2.1		%	1.4		%
Expected dividend yield	0.0		%	0.0		%

Restricted Stock and Restricted Stock Units ("Restricted Stock Awards")

Quarter ended	November 30, 2017		December 1, 2016
Restricted stock award shares granted	2		3
Weighted-average grant-date fair value per share	$	39.01	$	18.22

Stock-based Compensation Expense

Quarter ended	November 30, 2017		December 1, 2016
Stock-based compensation expense by caption
Cost of goods sold	$	20	$	19
Selling, general, and administrative	18		15
Research and development	13		12
	$	51	$	46
Stock-based compensation expense by type of award
Stock options	$	17	$	17
Restricted stock awards	34		29
	$	51	$	46

As of November 30, 2017, $348 million of total unrecognized compensation costs for unvested awards was expected to be recognized through the first quarter of 2022, resulting in a weighted-average period of 1.2 years.