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Amount of interest expense classified as operating and nonoperating. Includes, but is not limited to, cost of borrowing accounted for as interest expense.

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Related Parties (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
Related Parties (Details) - USD ($) $ in Millions	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Related Party Transaction [Line Items]
Selling, general and administrative expenses	$ 96.3	$ 85.8	$ 283.9	$ 274.2
Net outstanding payables	108.4		108.4		$ 106.5
Net outstanding receivables	215.2		215.2		214.9
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Related Party Transaction [Line Items]
Interest expense				2.5
Related Party \| Centralized Cost
Related Party Transaction [Line Items]
Selling, general and administrative expenses		13.5
Related Party \| Spinoff Transaction Costs
Related Party Transaction [Line Items]
Selling, general and administrative expenses		$ 2.7		$ 19.7
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Related Party Transaction [Line Items]
Net outstanding payables	0.1		0.1
Net outstanding receivables					0.3
Related Party \| SpinCo \| Tax Matters Agreement
Related Party Transaction [Line Items]
Net outstanding receivables	$ 6.5		$ 6.5		$ 4.5