Summary of Significant Accounting Policies - Schedule of Changes in Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	$ 7,514.8	$ 7,590.0	$ 7,988.3
Other comprehensive income (loss) for the period	620.0	(447.9)	34.3
Ending balance	8,378.7	7,514.8	7,590.0
Total
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(1,527.9)	(1,080.0)	(1,114.3)
Ending balance	(907.9)	(1,527.9)	(1,080.0)
Foreign Currency Translation Adjustments
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(1,527.2)	(1,079.3)	(1,114.6)
Other comprehensive income (loss) for the period	618.6	(447.9)	35.3
Ending balance	(908.6)	(1,527.2)	(1,079.3)
Prior Pension and Post-Retirement Benefit Service Cost and Actuarial Gain (Loss)
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(0.7)	(0.7)	0.3
Other comprehensive income (loss) for the period	1.4	0.0	(1.0)
Ending balance	$ 0.7	$ (0.7)	$ (0.7)