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Products, Services and Other Revenues (Schedule Of Receivables And Customer Deposits Related To Contracts With Customers) (Details) - USD ($) $ in Millions | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Contracts with customers [Member] |  |
Receivables [Line Items] |  |
Accounts Receivable, before Allowance for Credit Loss | $ 537.6 | $ 616.4

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