Stock-Based Compensation

Stock-based compensation expense

The following table sets forth the stock-based compensation expense recognized for our equity incentive plans:



	Three Months Ended						Six Months Ended
(In millions)	September 28, 2018			September 29, 2017			September 28, 2018			September 29, 2017
Cost of revenues	$	4		$	9		$	9		$	15
Sales and marketing	31			50			62			93
Research and development	39			53			78			94
General and administrative	23			64			61			121
Total stock-based compensation expense	$	97		$	176		210			323
Income tax benefit for stock-based compensation expense	$	(21	)	$	(58	)	(47		)	(109		)

The following table summarizes additional information related to our stock-based compensation:



	Six Months Ended
(In millions, except per grant data)	September 28, 2018		September 29, 2017
RSUs:
Weighted-average fair value per award granted and assumed	$	21.65	$	30.08
Awards granted and assumed	12		10
Total fair value of awards released	$	195	$	234
Outstanding and unvested	21		23
PRUs:
Weighted-average fair value per award granted and assumed	$	21.23	$	32.94
Awards granted and assumed	2		4
Total fair value of awards released	$	8	$	23
Outstanding and unvested at target payout	5		9
Stock options:
Total intrinsic value of stock options exercised	$	11	$	103
Outstanding	13		15
Restricted stock:
Outstanding and unvested	1		1

PRUs

As of September 28, 2018, 12 million PRUs that vested on March 30, 2018 remained unreleased.

Liability-classified awards settled in shares

For certain employees, we settled fiscal 2018 bonuses in approximately 1 million RSUs. These awards were granted and vested in the first quarter of fiscal 2019. Certain fiscal 2019 bonuses are expected to be settled in RSUs in the first quarter of fiscal 2020. As of September 28, 2018 and March 30, 2018, the total liability associated with liability-classified awards was $14 million and $25 million, respectively, which is presented in Accrued compensation and benefits in our Condensed Consolidated Balance Sheets.

Employee stock purchase plan

In August 2018, we cancelled the issuance of common stock under our 2008 Employee Stock Purchase Plan for the 6-month purchase period ended August 15, 2018, as a result of the delayed filing of our Annual Report on Form 10-K for the fiscal year ended March 30, 2018. All participant contributions were refunded. In addition, the enrollment in the purchase period beginning August 16, 2018 was delayed.

As of September 28, 2018, the total unrecognized stock-based compensation costs, net of estimated forfeitures, were as follows:



(In millions)	Unrecognized compensation cost		Weighted-average remaining years
RSUs	$	312	2.0 years
PRUs	66		1.2 years
Options	15		1.5 years
Restricted stock	27		1.8 years
Liability-classified awards settled in shares	30		1.2 years
Total	$	450