Stock-based Compensation - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions	1 Months Ended					12 Months Ended
	Apr. 30, 2024	Mar. 31, 2022	Jul. 31, 2021	Mar. 31, 2021	Mar. 31, 2019	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	May 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense						$ 203.3	$ 159.4	$ 124.8
Tax benefit from compensation expense						37.0	30.4	23.8
Cash received from exercise of stock options						$ 355.1	$ 115.4	$ 91.8
Grant date fair value of options						$ 67.87	$ 63.5
Performance Based Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee service share-based compensation period for recognition of expense						1 year 9 months 18 days	2 years 2 months 12 days
Non-cash stock-based compensation expense not yet recognized						$ 21.3	$ 16.2
Grant date fair value of options		$ 71.89	$ 75.03
Performance Based Stock Units [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity based incentive plan vesting percentage						200.00%
Performance Based Stock Units [Member] | Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity based incentive plan vesting percentage						0.00%
Time Based Option And Stock Appreciation Rights [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity-based incentive plan, description						Time-based stock options and SARs generally vest 25% on the first anniversary of the grant date and 1/36th of the remaining balance each month thereafter for 36 months.
Employee service share-based compensation period for recognition of expense						2 years 3 months 18 days	2 years 2 months 12 days
Option vesting period						36 months
Awards granted, weighted average granted fair value						$ 17.11	$ 17.54	$ 15.26
Awards vested, fair value						$ 61.2	$ 86.9	$ 102.1
Non-cash stock-based compensation expense not yet recognized						71.4	111.7
Total intrinsic value of the awards						$ 198.5	$ 84.2	92.6
Time Based Option And Stock Appreciation Rights [Member] | Tranche One [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity based incentive plan vesting percentage						25.00%
Time Based Option And Stock Appreciation Rights [Member] | Tranche Two and Thereafter [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity based incentive plan vesting percentage						0.0208%
Performance Based Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee service share-based compensation period for recognition of expense						2 months 12 days	1 year 2 months 12 days
Option vesting period						3 years			3 years
Non-cash stock-based compensation expense not yet recognized						$ 3.8	$ 23.3
Vested						0	0
Performance Based Stock Options [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity based incentive plan vesting percentage				79.20%					200.00%
Performance Based Stock Options [Member] | Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity based incentive plan vesting percentage									0.00%
Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Tax benefit from compensation expense						$ 58.5	$ 28.9	$ 19.2
Second Amended and Restated 2014 Stock Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Additional shares available for equity awards					34,000,000
2014 Stock Option Plan [Member] | Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based Compensation not yet Recognized						$ 196.2	$ 114.5
Employee service share-based compensation period for recognition of expense						1 year 10 months 24 days	2 years 1 month 6 days
Option vesting period						2 years	2 years	2 years
2014 Stock Option Plan [Member] | Common Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized under equity-based incentive plan										6,000,000
Amended 2014 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Initial authorized shares										24,000,000
2023 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Additional shares available for equity awards	2,600,000					11,500,000
2014 Plan, 2008 Plan and 2006 Plan [Member] | Common Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity-based incentive plan, description						Under the terms of the 2023 Plans and 2014 Plans, the exercise price of awards is set on the grant date and may not be less than the fair market value per share on such date.
Equity based incentive plan expiry period from date of grant						10 years