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

Percentage of payroll deductions of employees eligible compensation.

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Share Based Compensation Arrangement By Share Based Payment Award Value Of Shares Available For Issuance.

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Share-Based Payment Arrangement, Nonvested Award, Probable of Achievement, Cost Not yet Recognized, Amount

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Aggregate number of common shares reserved for future issuance.

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Maximum term of the deferred compensation arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount of cost capitalized for award under share-based payment arrangement.

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Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Amount of tax benefit for recognition of expense of award under share-based payment arrangement.

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Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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Discount rate from fair value on offering date that participants pay for shares.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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