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v3.19.1

Commitments and Contingencies Asbestos Narrative (Details) - Asbestos [Member] $ in Millions | 339 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2019 USD ($) claimants cases | Dec. 31, 2018 claimants | Dec. 31, 2017 claimants
Loss Contingencies [Line Items] |  |  |
Loss Contingency, Pending Cases, Number | cases | 370 |  |
Loss Contingency, Pending Claims, Number | 4,811 | 4,820 | 5,256
Total settlement costs | $ | $ 9.0 |  |
Percentage of settlement and defense costs covered by insurance | 40.00% |  |
Punitive Only Damages [Member] | Pending Litigation [Member] |  |  |
Loss Contingencies [Line Items] |  |  |
Number of pending claims seeking specific amounts of damages | 0 |  |
Compensatory Only Damages [Member] | Pending Litigation [Member] |  |  |
Loss Contingencies [Line Items] |  |  |
Number of pending claims seeking specific amounts of damages | 54 |  |

X
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- Definition Number of pending claims pertaining to a loss contingency. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14435-108349 + Details
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