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Stock-Based Compensation - Narrative (Details) - USD ($) | 1 Months Ended | 12 Months Ended
--- | --- | ---
May 31, 2023 | Dec. 31, 2020 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2018
Class of Stock [Line Items] |  |  |  |  |  |  |
Stock-based compensation arrangement, tax benefit |  |  | $ 435,000,000 | $ 19,000,000 | $ 36,000,000 |  |
Income tax benefit related to stock-based compensation expense |  |  | $ 227,000,000 | $ 0 | 0 |  |
Options exercisable (in shares) |  |  | 6,000,000 | 20,000,000 |  |  |
Options excisable (in USD per share) |  |  | $ 60.89 | $ 17.01 |  |  |
Exercise of common stock options, net of shares withheld for taxes (in shares) | 11,200,000 |  | 16,000,000 | 3,000,000 |  |  |
Stock repurchased and retired (in shares) | 5,700,000 |  |  |  |  |  |
Taxes paid related to net share settlement of equity awards | $ 567,000,000 |  | $ 1,224,000,000 | $ 607,000,000 | $ 177,000,000 |  |
Exercise cost | $ 36,000,000 |  |  |  |  |  |
Weighted-average fair value of options granted (in USD per share) |  |  | $ 65.22 | $ 79.75 | $ 96.50 |  |
Aggregate intrinsic value of options exercised |  |  | $ 1,620,000,000 | $ 326,000,000 | $ 2,825,000,000 |  |
Grant date fair value of options vested |  |  | 44,000,000 | 45,000,000 | 46,000,000 |  |
Unrecognized compensation cost related to stock option awards granted |  |  | $ 87,000,000 |  |  |  |
Weighted-average period expected to recognize compensation expense |  |  | 2 years 6 months |  |  |  |
Stock-based compensation expense |  |  | $ 1,120,000,000 | $ 930,000,000 | $ 899,000,000 |  |
Common Class A |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |
Stock repurchased and retired (in shares) |  |  | 17,900,000 |  |  |  |
2018 Plan |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |
Additional shares authorized (in shares) |  |  |  |  |  |  | 13,200,000
2018 Plan | Common Class B |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |
Shares authorized (in shares) |  |  |  |  |  |  | 50,000,000
2020 Plan | Common Class A |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |
Shares authorized (in shares) |  | 62,100,000 |  |  |  | 62,100,000 |
Annual increase in number of shares authorized (percent) |  |  |  |  |  | 5.00% |
Maximum shares issuable (in shares) |  |  |  |  |  | 371,200,000 |
Assumed Equity Incentive Plan | Common Class A |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |
Options exercisable (in shares) |  |  |  |  | 98,093 |  |
Options excisable (in USD per share) |  |  |  |  | $ 22.67 |  |
RSAs |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |
Vesting term |  |  | 4 years |  |  |  |
Issued and outstanding (in shares) |  |  | 800,000 | 400,000 | 600,000 |  |
Unvested RSAs, weighted-average grant-date fair value (in usd per share) |  |  | $ 100.04 | $ 62.33 | $ 62.32 |  |
RSAs | Assumed Equity Incentive Plan |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |
Issued (in shares) |  |  |  |  | 3,512 |  |
RSUs |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |
Issued (in shares) |  |  | 12,000,000 | 12,000,000 |  |  |
Vesting term |  |  | 4 years |  |  |  |
Issued and outstanding (in shares) |  |  | 30,000,000 | 34,000,000 | 37,000,000 |  |
Unvested RSAs, weighted-average grant-date fair value (in usd per share) |  |  | $ 85.35 | $ 77.07 | $ 61.22 |  |
Employee Stock Purchase Plan | 2020 Employee Stock Purchase Plan |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |
Maximum shares issuable (in shares) |  | 89,800,000 |  |  |  |  |
Shares available for future issuance (in shares) |  |  | 14,000,000 | 8,900,000 |  |  |
Stock-based compensation expense |  |  | $ 29,000,000 | $ 33,000,000 |  |  |
Employee Stock Purchase Plan | 2020 Employee Stock Purchase Plan | Common Class A |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |
Shares authorized (in shares) |  | 4,000,000 |  |  |  | 4,000,000 |
Annual increase in number of shares authorized (percent) |  | 1.00% |  |  |  |  |

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