v3.23.1
Stock-Based Compensation
 3 Months Ended
Mar. 31, 2023
Share-Based Payment Arrangement [Abstract]  
Stock-Based Compensation Stock-Based Compensation
Stock-Based Compensation Expense

The following table summarizes total stock-based compensation expense (in millions):
Three Months Ended March 31,
20222023
Operations and support$12 $15 
Product development118 149 
Sales and marketing21 28 
General and administrative44 48 
Stock-based compensation expense$195 $240 

Stock Option and Restricted Stock Unit Activity

A summary of stock option and restricted stock unit (“RSU”) activity under the Company’s equity incentive plans was as follows (in millions, except per share amounts):

Outstanding
Stock Options
Outstanding
RSUs
 Shares
Available for
Grant		Number of
Shares		Weighted-
Average
Exercise
Price		Number of
Shares		Weighted-
Average
Grant
Date Fair
Value
As of December 31, 2022108 22 $23.41 34 $77.07 
Granted(9)1 122.41 8 118.84 
Increase in shares available for grant32 — — — — 
Shares withheld for taxes1 — — (1)92.62 
Exercised/Vested— (2)10.75 (3)93.80 
As of March 31, 2023132 21 $27.93 38 $84.33 

Number of
Shares		Weighted-
Average
Exercise
Price		Weighted-
Average
Remaining
Contractual
Life (years)		Aggregate
Intrinsic
Value
Options outstanding as of March 31, 202321 $27.93 2.92$2,053 
Options exercisable as of March 31, 202318 $18.33 2.19$1,976