Asbestos-Related Liabilities (Summary of Outstanding Claims by Year of Exposure and State Filed) (Details) - Claim	Sep. 30, 2016	Dec. 31, 2015
Causes of Increase (Decrease) in Liability for Unpaid Claims and Claims Adjustment Expense [Line Items]
Claims outstanding	55,500	54,500
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		17,500