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Income Taxes (Narrative) (Details) € in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024 USD ($)	Jun. 30, 2023 USD ($)	Jun. 30, 2024 USD ($)	Jun. 30, 2023 USD ($)	Feb. 29, 2024 USD ($)	Feb. 29, 2024 EUR (€)
Effective Income Tax Rate Reconciliation [Line Items]
Discreet income tax benefit	$ 63.9	$ (6.2)	$ 70.5	$ 37.5
Income Tax Expense (Benefit) Excluding Discrete Items	33.9	18.3	53.4	34.4
Income tax benefit	(30.0)	$ 24.5	(17.1)	$ (3.1)
Luxembourg subsidiaries
Effective Income Tax Rate Reconciliation [Line Items]
Liability for Uncertainty in Income Taxes, Noncurrent					$ 65.0	€ 60.0
Income tax benefit	$ (65.0)		$ (65.0)

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