Income Taxes - Pre-tax Income and the Provision for Income Taxes (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Pre-tax income:
Ireland	$ 341.9	$ (179.9)	$ (204.0)
United States	(35.3)	91.5	(368.4)
Other foreign	(47.9)	94.3	720.4
Income from continuing operations before income taxes	258.7	5.9	148.0
Current provision (benefit) for income taxes:
Ireland	303.6	0.1	(0.5)
United States	14.9	4.5	24.8
Other foreign	81.3	34.9	8.3
Subtotal	399.8	39.5	32.6
Deferred provision (benefit) for income taxes:
Ireland	0.4	(0.1)	0.0
United States	3.3	(64.2)	(24.1)
Other foreign	(13.9)	(13.5)	(19.2)
Subtotal	(10.2)	(77.8)	(43.3)
Total provision for income taxes	$ 389.6	$ (38.3)	$ (10.7)