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					Nine Months Ended
(In millions)	December 28, 2018			December 29, 2017		December 28, 2018			December 29, 2017
Cost of revenues	$	4		$	7	$	13		$	22
Sales and marketing	23			30		85			123
Research and development	19			49		97			143
General and administrative	9			39		70			160
Total stock-based compensation expense	$	55		$	125	265			448
Income tax expense (benefit) for stock-based compensation expense	$	(12	)	$	2	(59		)	(107		)

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



	Nine Months Ended
(In millions, except per grant data)	December 28, 2018		December 29, 2017
RSUs:
Weighted-average fair value per award granted and assumed	$	21.71	$	30.20
Awards granted and assumed	14		12
Total fair value of awards released	$	203	$	265
Outstanding and unvested	21		21
PRUs:
Weighted-average fair value per award granted and assumed	$	21.21	$	32.94
Awards granted and assumed	2		4
Total fair value of awards released	$	261	$	24
Outstanding and unvested at target payout	4		9
Stock options:
Total intrinsic value of stock options exercised	$	13	$	123
Outstanding	12		14
Restricted stock:
Outstanding and unvested	1		1

PRUs

In October 2018, we released 12 million PRUs that vested on March 30, 2018.

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 December 28, 2018 and March 30, 2018, the total liability associated with liability-classified awards was $21 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 cancelled.

As of December 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	$	280	1.8 years
PRUs	35		1.0 year
Options	12		1.3 years
Restricted stock	23		1.6 years
Liability-classified awards settled in shares	22		1.0 year
Total	$	372