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Supplemental Financial Information (Accounts Receivable, Net) (Details) - USD ($) $ in Millions	Sep. 30, 2025	Dec. 31, 2024
Accounts, Notes, Loans and Financing Receivable [Line Items]
Trade receivables	$ 529.7	$ 587.8
Income Taxes Receivable	51.2	76.2
Allowance for doubtful accounts	(16.0)	(16.6)
Accounts receivable, net	513.7	571.2
Trade
Accounts, Notes, Loans and Financing Receivable [Line Items]
Trade receivables	444.5	502.4
Other Accounts Receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Trade receivables	$ 34.0	$ 9.2

X

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