Employee Benefit Plans (Tables)

6 Months Ended

Jun. 30, 2019

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

Schedule of restricted stock unit activity

The following table presents restricted stock unit (“RSU”) activity (including performance-based RSUs that have been earned) under our equity incentive plans as of and for the six months ended June 30, 2019 (in millions):  

	Units
Outstanding as of January 1, 2019	34
Awarded	16
Vested	(9	)
Forfeited	(5	)
Outstanding as of June 30, 2019	36

Schedule of stock-based compensation expense

The impact on our results of operations of recording stock-based compensation expense for the three and six months ended June 30, 2019 and 2018 was as follows (in millions):

	Three Months Ended June 30,				Six Months Ended June 30,
	2019		2018		2019		2018
Cost of net revenues	$	15	$	16	$	29	$	29
Sales and marketing	25		31		48		56
Product development	54		58		99		103
General and administrative	45		46		84		83
Total stock-based compensation expense	$	139	$	151	$	260	$	271
Capitalized in product development	$	3	$	4	$	6	$	7