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Equity Incentive Plans - Additional Information (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |
Contractual term of stock options, in years | 10 years |  |
Aggregate intrinsic value of options exercised | $ 1,770.0 | $ 1,330.0 | $ 1,900.0
Percentage of payroll deductions of employees eligible compensation | 15.00% |  |
Percentage of discount on purchase price of shares lower than fair market value | 85.00% |  |
Number of shares issued under ESPP (in shares) | 2,200 | 2,100 | 1,400
Unrecognized compensation expense | $ 5,790.0 |  |
Weighted-average period of recognition of unrecognized compensation, in years | 3 years |  |
Stock-based compensation | $ 1,999.0 | $ 1,812.0 | $ 1,560.0
Excess tax benefits related to stock-based compensation | 371.0 | 326.0 | 0.0
Stock-based compensation expense capitalized | 198.0 | 199.0 | 245.0
Employee Stock |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |
Value of shares available for issuance under ESPP | $ 95.5 |  |
2019 Equity Incentive Plan |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |
Shares reserved for issuance (in shares) | 113,000 |  |
Performance Based Restricted Stock Units And Stock Options |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |
Unrecognized compensation expense | $ 490.0 |  |
Granted (in shares) | 5,000 |  |
Probable of achievement, cost not yet recognized, amount | $ 421.0 |  |
Weighted-average period of recognition of unrecognized compensation, in years | 4 years |  |
Stock-based compensation | $ 0.0 | $ 0.0 | $ 0.0
Restricted Stock Units (RSUs) |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |
Granted (in dollars per share) | $ 223.98 | $ 228.33 | $ 239.85
Aggregate fair value | $ 1,750.0 | $ 2,500.0 | $ 4,320.0
Restricted Stock Units (RSUs) | 2019 Equity Incentive Plan |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |
Granted (in dollars per share) | $ 223.98 |  |
Granted (in shares) | 12,045 |  |
Restricted Stock Units (RSUs) | Maximum |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |
Vesting period, in years | 4 years |  |
Employee Stock |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |
Vesting period, in years | 6 months |  |
Offering period | 6 months |  |

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