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Commitments And Contingencies (Asbestos Liability Narrative) (Details) - USD ($) $ in Millions |  | 3 Months Ended | 7 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Aug. 12, 2022 | Sep. 30, 2022 | Aug. 11, 2022 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Loss Contingencies [Line Items] |  |  |  |  |  |
Payments for Disposal of Asbestos-Related Assets and Liabilities |  |  |  | $ 550.0 | $ 0.0 | $ 0.0
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal |  |  |  | (162.4) | 0.0 | 0.0
Pre-tax cash payments, net |  |  |  | 29.3 | 44.9 | 31.1
Asbestos Commitments And Contingencies |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |
Total costs incurred |  |  | $ 35.8 | 35.8 | 55.2 | 50.9
Pre-tax cash payments, net |  |  | $ 29.3 | $ 29.3 | $ 44.9 | $ 31.1
Discontinued Operations, Disposed of by Sale | Asbestos-Related Assets and Liabilities |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |
Payments for Disposal of Asbestos-Related Assets and Liabilities | $ 550.0 |  |  |  |  |
Maximum Indemnification Liability for Breach of Contract | 83.0 |  |  |  |  |
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal | (162.4) | $ 162.4 |  |  |  |
Transaction costs | (13.5) | $ 13.5 |  |  |  |
Discontinued Operations, Disposed of by Sale | Asbestos-Related Assets and Liabilities | Redco Buyer |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |
Payments for Disposal of Asbestos-Related Assets and Liabilities | $ 83.0 |  |  |  |  |

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