Equity Plans

As of March 2, 2017, 72 million shares were available for future awards under our equity plans.

Stock Options



	Quarter ended						Six months ended
	March 2, 2017			March 3, 2016			March 2, 2017			March 3, 2016
Stock options granted	4			5			6			7
Weighted-average grant-date fair value per share	$	8.37		$	6.59		$	8.15		$	7.01
Average expected life in years	5.5			5.5			5.5			5.5
Weighted-average expected volatility	47		%	47		%	47		%	47		%
Weighted-average risk-free interest rate	1.9		%	1.7		%	1.8		%	1.7		%
Expected dividend yield	0		%	0		%	0		%	0		%

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



	Quarter ended				Six months ended
	March 2, 2017		March 3, 2016		March 2, 2017		March 3, 2016
Restricted stock awards granted	5		6		8		9
Weighted-average grant-date fair value per share	$	18.67	$	14.71	$	18.52	$	15.84

Stock-based Compensation Expense



	Quarter ended				Six months ended
	March 2, 2017		March 3, 2016		March 2, 2017		March 3, 2016
Stock-based compensation expense by caption
Cost of goods sold	$	23	$	19	$	42	$	37
Selling, general, and administrative	18		21		33		38
Research and development	14		15		26		26
	$	55	$	55	$	101	$	101

Stock-based compensation expense by type of award
Stock options	$	18	$	22	$	35	$	42
Restricted stock awards	37		33		66		59
	$	55	$	55	$	101	$	101

As of March 2, 2017, $438 million of total unrecognized compensation costs for unvested awards was expected to be recognized through the second quarter of 2021, resulting in a weighted-average period of 1.3 years. Stock-based compensation expense does not reflect significant income tax benefits, which is consistent with our treatment of income or loss from our U.S. operations.