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Supplemental Financial Information (Accounts Receivable, Net) (Details) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]
Trade receivables	$ 408.1	$ 463.9
Income Taxes Receivable	47.9	93.6
Allowance for doubtful accounts	(14.7)	(14.8)
Accounts receivable, net	393.4	449.1
Trade
Accounts, Notes, Loans and Financing Receivable [Line Items]
Trade receivables	339.6	345.7
Other Accounts Receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Trade receivables	$ 20.6	$ 24.6

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