Employee Benefit Plans (Tables)

6 Months Ended

Jun. 30, 2020

Share-based Payment Arrangement [Abstract]

Schedule of restricted stock unit activity

The following table presents restricted stock unit (“RSU”) activity under our equity incentive plans as of and for the six months ended June 30, 2020 (in millions):  

	Units
Outstanding as of January 1, 2020	28
Awarded	14
Vested	(6)
Forfeited	(6)
Outstanding as of June 30, 2020	30

Schedule of stock-based compensation expense

The impact on our results of operations of recording stock-based compensation expense was as follows (in millions):

	Three Months Ended June 30,				Six Months Ended June 30,
	2020		2019		2020		2019
Cost of net revenues	$	12	$	13	$	22	$	25
Sales and marketing	24		23		44		44
Product development	46		50		85		92
General and administrative	34		43		65		80
Total stock-based compensation expense	$	116	$	129	$	216	$	241
Capitalized in product development	$	4	$	3	$	8	$	6