v3.24.1.u1
Stock-Based Compensation (Tables)
 3 Months Ended
Mar. 31, 2024
Share-Based Payment Arrangement [Abstract]  
Schedule of Stock-Based Compensation Expense
The following table summarizes total stock-based compensation expense (in millions):
Three Months Ended
March 31,
20232024
Operations and support$15 $19 
Product development149 185 
Sales and marketing28 35 
General and administrative48 56 
Stock-based compensation expense$240 $295 
Schedule of Stock Option 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, 2023134 7 $71.76 30 $85.35 
Granted(7)— — 7 166.17 
Increase in shares available for grant13 — — — — 
Options exercised/RSUs vested(1)
1 (1)42.12 (2)109.14 
As of March 31, 2024141 6 $80.12 35 $100.12 

(1)RSUs vested are net of shares withheld for taxes.
Number of
Shares		Weighted-
Average
Exercise
Price
Weighted-
Average
Remaining
Contractual
Life (Years)
Aggregate
Intrinsic
Value
Options outstanding as of March 31, 20246 $80.12 5.87$541 
Options exercisable as of March 31, 20245 $66.85 5.12$484 
Schedule of 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, 2023134 7 $71.76 30 $85.35 
Granted(7)— — 7 166.17 
Increase in shares available for grant13 — — — — 
Options exercised/RSUs vested(1)
1 (1)42.12 (2)109.14 
As of March 31, 2024141 6 $80.12 35 $100.12 

(1)RSUs vested are net of shares withheld for taxes.
Number of
Shares		Weighted-
Average
Exercise
Price
Weighted-
Average
Remaining
Contractual
Life (Years)
Aggregate
Intrinsic
Value
Options outstanding as of March 31, 20246 $80.12 5.87$541 
Options exercisable as of March 31, 20245 $66.85 5.12$484