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Share-Based Awards (Tables)

9 Months Ended

Sep. 30, 2022

Share-Based Payment Arrangement [Abstract]

Summary of Option Award Activity

The following table summarizes all option award activity for the nine months ended September 30, 2022:

			Number of Shares Subject to Existing Options (in thousands)						Weighted- Average Exercise Price Per Share						Weighted- Average Remaining Contractual Life (Years)						Aggregate Intrinsic Value (in millions)
Outstanding at January 1, 2022			25,746						$	72.86					7.48						$	354
Granted			6,792						46.47
Exercised			(1,078)						40.59
Forfeited or cancelled			(3,061)						88.70
Outstanding at September 30, 2022			28,399						45.25						7.31						8
Vested and exercisable at September 30, 2022			15,398						44.74						6.10						8

Fair Value of Options Granted, Estimated at Date of Grant Using Black Scholes Merton Option Pricing Model

The fair value of all option awards granted is estimated at the date of grant using the Black-Scholes-Merton option-pricing model, assuming no dividends and with the following assumptions for the periods presented:

			Three Months Ended September 30,												Nine Months Ended September 30,
			2022						2021						2022						2021
Expected volatility			61%						55%						55% - 61%						52% - 56%
Risk-free interest rate			3.38%						0.76%						1.94% - 3.38%						0.57% - 0.90%
Weighted-average expected life			5.00 years						4.75 years						4.50 - 6.00 years						4.50 - 5.75 years
Weighted-average fair value of options granted			$18.06						$45.40						$23.75						$58.96

Summary of Restricted Stock Units Activity

The following table summarizes activity for all restricted stock units for the nine months ended September 30, 2022:

			Restricted Stock Units (in thousands)						Weighted- Average Grant- Date Fair Value
Unvested outstanding at January 1, 2022			6,074						$	66.51
Granted			10,664						42.71
Vested			(3,278)						53.87
Forfeited			(2,193)						60.45
Unvested outstanding at September 30, 2022			11,267						48.85

Effects of Share Based Compensation in Consolidated Statements of Operations

The following table presents the effects of share-based compensation expense in our condensed consolidated statements of operations during the periods presented (in millions):

			Three Months Ended September 30,												Nine Months Ended September 30,
			2022						2021						2022						2021
Cost of revenue			$	5					$	2					$	12					$	7
Sales and marketing			21						11						46						31
Technology and development			57						25						123						78
General and administrative			64						32						142						88
Restructuring costs			—						—						2						—
Share-based compensation - continuing operations			147						70						325						204
Share-based compensation - discontinued operations			1						9						16						27
Total share-based compensation			$	148					$	79					$	341					$	231

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Tabular disclosure of allocation of amount expensed and capitalized for award under share-based payment arrangement to statement of income or comprehensive income and statement of financial position. Includes, but is not limited to, corresponding line item in financial statement.

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Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year.

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Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value.

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Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.

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