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Asbestos-Related Liabilities (Summary of Outstanding Claims by Year of Exposure and State Filed) (Details) - Claim	Mar. 31, 2017	Dec. 31, 2016
Causes of Increase (Decrease) in Liability for Unpaid Claims and Claims Adjustment Expense [Line Items]
Claims outstanding	56,000	55,500
Asbestos After 1964 [Member]
Causes of Increase (Decrease) in Liability for Unpaid Claims and Claims Adjustment Expense [Line Items]
Claims outstanding		16,000
Texas [Member] | Asbestos Before Or During 1964 [Member]
Causes of Increase (Decrease) in Liability for Unpaid Claims and Claims Adjustment Expense [Line Items]
Claims outstanding		13,000
Pennsylvania [Member] | Asbestos Before Or During 1964 [Member]
Causes of Increase (Decrease) in Liability for Unpaid Claims and Claims Adjustment Expense [Line Items]
Claims outstanding		2,000
Other States That Have Enacted Asbestos Legislation [Member] | Asbestos Before Or During 1964 [Member]
Causes of Increase (Decrease) in Liability for Unpaid Claims and Claims Adjustment Expense [Line Items]
Claims outstanding		6,000
Other States [Member] | Asbestos Before Or During 1964 [Member]
Causes of Increase (Decrease) in Liability for Unpaid Claims and Claims Adjustment Expense [Line Items]
Claims outstanding		18,500

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Number of pending claims pertaining to a loss contingency.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14435-108349

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