Stockholders' Deficit (Tables)

12 Months Ended

Dec. 31, 2021

Stockholders' Equity Note [Abstract]

Schedule of change in the number of shares of Class A common stock

The following reflects total stock-based compensation expense recognized under all programs:

	Year Ended December 31,
	2021		2020		2019
Related to SGC stock options	$	31	$	8	$	4
Related to SGC RSUs	75		26		19
Related to SciPlay RSUs	7		22		9
Total(1)(2)	$	113	$	56	$	32
(1) The increase in SGC stock-based compensation expense for the year ended December 31, 2021 is related to the acceleration of the expense as a result of attainment of certain targets for grants to consultants who are also on our board coupled with the new equity awards issued at a higher fair value given the increase in our stock price compared to the prior period.
(2) The year ended December 31, 2021 includes $34 million classified as liability awards.

The following table sets forth the change in the number of shares of common stock outstanding during the fiscal years ended December 31, 2021 and 2020:

	December 31,
	2021	2020
Shares outstanding as of beginning of period	95	94
Shares issued as part of equity-based compensation plans and the ESPP, net of shares surrendered	2	1
Shares outstanding as of end of period	97	95

Share-based Payment Arrangement, Option, Activity

A summary of the changes in stock options outstanding under our equity-based compensation plans during 2021 is presented below:

	Number of Options	Weighted Average Remaining Contract Term (Years)	Weighted Average Exercise Price (per share)		Aggregate Intrinsic Value
Options outstanding as of December 31, 2020	2.2	6.2	$	32.89	$	20
Granted	—	—	$	74.16	$	—
Exercised	0.2	—	$	26.26	$	7
Cancelled	—	—	$	41.13	$	—
Options outstanding as of December 31, 2021	2.0	5.3	$	33.59	$	68
Options exercisable as of December 31, 2021	1.8	5.1	$	34.19	$	59
Options expected to vest as of December 31, 2021	0.2	7.3	$	28.96	$	8

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions

The weighted-average assumptions used in the model are outlined in the following table:

	2021		2020		2019
Assumptions:
Expected volatility	74	%	75	%	58	%
Risk-free interest rate	0.96	%	0.36	%	2.46	%
Dividend yield	—		—		—
Expected life (in years)	6		6		6

RSUs outstanding under equity-based compensation plans

A summary of the changes in RSUs outstanding under our equity-based compensation plans during 2021 is presented below:

	Number of Restricted Stock Units	Weighted Average Grant Date Fair Value
Unvested RSUs as of December 31, 2020	3.3	$	19.07
Granted	1.2	$	55.64
Vested	(1.6)	$	24.70
Cancelled	(0.2)	$	27.96
Unvested RSUs as of December 31, 2021(1)	2.7	$	32.03
(1) 1 million unvested RSUs are related to discontinued operations for each of the years ended December 31, 2021 and 2020.