Commitments and Contingencies (Schedule of Loss Contingencies) (Details) $ in Millions	9 Months Ended
Sep. 30, 2018 USD ($) claims
Liability for Asbestos and Environmental Claims [Roll Forward]
Claims outstanding at December 31, 2017	687
New claims filed	194
Pending claims concluded	(163)
Claims outstanding at September 30, 2018	718
Number of claims dismissed	143
Number of claims settled (claim)	20
Claims settlements amount \| $	$ 5.9

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

No definition available.

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- Definition

Amount of cash outflow reducing loss contingency liability.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14326-108349

+ Details

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Balance Type:	credit
Period Type:	duration

- Definition

Number of claims dismissed.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
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- Definition

The number of claims settled and dismissed during the period.

+ 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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- Definition

Number of claims settled.

+ References

No definition available.

+ Details

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- Definition

The total number of new claims filed pertaining to a loss contingency during the period.

+ References

+ Details

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- Definition

Number of pending claims pertaining to a loss contingency.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant