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Income Taxes - Schedule Of Income Tax Difference From Statutory Rate (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Federal tax at statutory rate	$ 411.4	$ 337.4	$ 397.0
State taxes, net of federal benefits	35.0	34.9	33.1
Foreign rate differential	(64.4)	(64.2)	(54.3)
U.S. tax on foreign earnings	70.9	75.4	40.1
Research and development credit	(48.6)	(41.7)	(30.7)
Excess tax benefits related to share-based compensation	(107.9)	(98.7)	(185.8)
Share-based compensation not benefited	29.5	24.1	17.8
Unrecognized tax benefits related to share-based compensation	4.4	3.3	13.6
Reversal of unrecognized tax benefits	(20.9)	(11.1)	(3.0)
Swiss tax benefits, net of valuation allowance	(92.3)	0.0	0.0
Deferred tax re-measurement	(67.1)	0.0	(66.4)
Other	(8.4)	3.0	0.8
Total income tax expense	$ 141.6	$ 262.4	$ 162.2

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