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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