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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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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 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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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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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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The highest percentage of annual salary that an employee is permitted to utilize with respect to the plan.

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The highest quantity of shares an employee can purchase under the plan per period.

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Number of shares authorized for issuance under share-based payment arrangement.

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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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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The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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Per share weighted-average price paid for shares purchased on open market for issuance under share-based payment arrangement.

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Maximum number of shares that may be issued in accordance with the plan as a proportion of outstanding capital stock.

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Number of non-vested options outstanding.

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Amount of stock repurchase plan authorized.

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Shareholders' Equity - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Feb. 13, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate ordinary shares repurchase	$ 13,085.1
Shares repurchase, shares	10,324,181	10,900,938	11,376,531
Shares repurchase, value	$ 1,299.9	$ 1,299.5	$ 1,297.7
Weighted average fair value granted under options	$ 34.6	$ 25.9	$ 22
Total intrinsic value of options exercised	$ 32.9	$ 65.1	$ 81.7
Total fair value of restricted stock units vested	89.4	66.8	$ 49.6
Unrecognized compensation expense	$ 265.8
Unrecognized compensation expense expected period of recognition (in years)	1 year 10 months 24 days
Options to purchase ordinary shares reserved for issuance	13,092,231
Share based compensation arrangement by share based payment award options outstanding intrinsic value	$ 82.5	$ 37.1
Share based compensation arrangement by share based payment award equity instruments other than options non vested number	2,408,346	2,336,762
Share Based Compensation Aggregate Amount Including Options And Units Aggregate Share Outstanding	130,948,425
Options In The Money
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation arrangement by share based payment award options nonvested number of shares	7,651,858	6,484,417
Options Out Of Money
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation arrangement by share based payment award options nonvested number of shares	126,250	1,676,208
Share based compensation arrangement by share based payment award options outstanding intrinsic value	$ 0.0	$ 0.0
Share Repurchase Program
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Authorized amount under share repurchase programs per quarter				$ 2,000.0
Authorized amount under share repurchase programs				$ 325.0
Two Thousand Five Equity Incentive Plans
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Reserved and Authorized Shares, percent of ordinary shares issued and outstanding at year end	10.00%
Employee Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Ordinary shares issued	2,250,867
Percentage of salary to purchase Ordinary shares			15.00%
Ordinary shares per employee, maximum			1,250
Price of Ordinary shares purchased under ESPP, percentage of lower of fair market value of Ordinary share on subscription date of each offering period or on purchase date			85.00%
Purchase of Ordinary shares by employees	372,242	361,675	364,859
Average price per share purchased by employees	$ 103.5	$ 105.3	$ 95.4
Compensation expense recognized	$ 9.9	$ 10.9	$ 10.2
US ESPP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options to purchase ordinary shares reserved for issuance	568,478
Number of shares available under ESPP	750,000
Rest of the World ESPP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options to purchase ordinary shares reserved for issuance	1,096,795
Performance Stock Units PSU
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	4 years
Share based compensation arrangement by share based payment award equity instruments other than options non vested number	188,493	105,595
Performance Stock Units PSU \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation arrangement by share based payment award equity instruments other than options non vested number	0.1
Phantom Share Units (PSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average fair value of stock units granted	$ 126.3	$ 120.1	$ 105.3