v3.26.1
Stock-Based Compensation Expense (Tables)
 6 Months Ended
Jun. 30, 2026
Share-Based Payment Arrangement [Abstract]  
Schedule of Stock-Based Compensation Expense
Stock-based compensation expense was as follows (in millions):
 Three Months Ended June 30,Six Months Ended June 30,
 2026202520262025
Infrastructure and trust & safety$34 $34 $69 $68 
Research and development195 189 387 366 
General and administrative41 49 78 85 
Sales and marketing12 13 23 25 
Total stock-based compensation expense$282 $285 $557 $544 
Schedule of Stock Option Activity
The following table summarizes the Company’s stock option activity:
 
Stock Options Outstanding
 
Number of
Shares Subject
to Options
(in thousands)
Weighted-Average
Exercise
Price (per Option)
Weighted-Average Remaining Contractual Term (Years)
Aggregate Intrinsic Value
(in millions)
Balances as of December 31, 20259,178 $3.64 3.07$710 
Cancelled, forfeited, and expired(17)$1.05 
Exercised(1,759)$3.50 
Balances as of June 30, 20267,402 $3.68 2.71$375 
Schedule of Restricted Stock Units and Restricted Stock Awards Activity and Restricted Stock Units (RSUs) and Performance Share Units
The following table summarizes the Company’s RSU, RSA, and PSU activities, excluding the 2024 CEO PSU Award, which is described in more detail in the following section:
 Unvested RSUs and RSAs Outstanding
Unvested Management PSUs Outstanding(1)
 
Number of
Shares
(in thousands)
Weighted-Average
Grant Date
Fair Value (per Share)
Number of
Shares
(in thousands)
Weighted-Average
Grant Date
Fair Value (per Share)
Unvested as of December 31, 202524,524 $63.59 1,826 $51.78 
Granted15,277 $53.71 773 $72.52 
Vested
(9,654)$54.74 (561)$42.34 
Cancelled(2,483)$62.28 (312)$52.29 
Unvested as of June 30, 202627,664 $61.34 1,726 $64.04 
(1)Includes PSUs issued to certain members of management (the “Management PSUs”) in each of the years 2023 through 2026 and excludes the 2024 CEO PSU Award, which is described in more detail below. The Management PSUs include awards with financial performance-based targets and market performance-based targets. All unvested PSU grants and balances are shown at the aggregate maximum number of shares that were granted and may be earned and issued with respect to each award over its full term (up through any applicable cancellation). Stock-based compensation expense recognized related to the Management PSUs was $2 million and $9 million during the three and six months ended June 30, 2026, respectively, and $17 million and $23 million during the three and six months ended June 30, 2025, respectively.