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Commitments, Contingent Liabilities and Other Matters - General (Details) $ in Millions | 12 Months Ended
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Dec. 31, 2017 USD ($) corporate_entity | Dec. 31, 2016 USD ($) | Dec. 31, 2015 USD ($)
Loss Contingencies [Line Items] |  |  |
Carrying values of accruals | $ 685.7 | $ 653.5 |
Liabilities for asbestos product liability | 641.2 | 605.6 |
Payments for asbestos-related matters, net of insurance recoveries | 1.0 | 5.8 | $ 6.9
Recorded charges related to asbestos product liability matters | $ 5.7 | 4.9 | 11.2
Asbestos Related Claims | Minimum |  |  |
Loss Contingencies [Line Items] |  |  |
Number of corporate entities named defendants | corporate_entity | 50 |  |
Other Operating Income (Expense) |  |  |
Loss Contingencies [Line Items] |  |  |
Recorded charges related to asbestos product liability matters | $ 3.5 | 4.2 | 8.0
Gain (Loss) on Disposition of Discontinued Operations, Net of Tax |  |  |
Loss Contingencies [Line Items] |  |  |
Recorded charges related to asbestos product liability matters | 2.2 | 0.7 | $ 3.2
Other Long Term Liabilities |  |  |
Loss Contingencies [Line Items] |  |  |
Accruals included in other long-term liabilities | 651.6 | 621.0 |
Other assets | Asbestos Related Claims |  |  |
Loss Contingencies [Line Items] |  |  |
Insurance recovery assets | $ 590.9 | $ 564.4 |

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