Environmental and Legal Contingencies (Details 3)		3 Months Ended		6 Months Ended
		Jun. 30, 2015 USD ($) claims-lawsuits	Jun. 30, 2014 USD ($) claims-lawsuits	Jun. 30, 2015 USD ($) plaintiffs defendants claims-lawsuits	Jun. 30, 2014 USD ($) claims-lawsuits
Asbestos Claims With Specific Dollar Claim For Damages [Member]
Information on pending asbestos cases [Line Items]
Number of asbestos cases pending | claims-lawsuits	[1]	122		122
Claims with specific dollar claims for damages [Abstract]
Asbestos Lawsuits Pending With Dollars Number Of Plaintiffs | plaintiffs				2,322
Asbestos Lawsuits Pending With Dollars Number Of Defendants | defendants				16,337
Asbestos Claims With Specific Dollar Claim For Damages [Member] | Asbestos claims up to $0.2 [Member]
Information on pending asbestos cases [Line Items]
Number of asbestos cases pending | claims-lawsuits		111		111
Claims with specific dollar claims for damages [Abstract]
Amount claimed per plaintiff, lower range				$ 0
Amount claimed per plaintiff, upper range				$ 200,000
Asbestos Claims With Specific Dollar Claim For Damages [Member] | Asbestos claims above $0.2 to $5.0 [Member]
Information on pending asbestos cases [Line Items]
Number of asbestos cases pending | claims-lawsuits		6		6
Claims with specific dollar claims for damages [Abstract]
Amount claimed per plaintiff, lower range				$ 200,000
Amount claimed per plaintiff, upper range				$ 5,000,000
Asbestos Claims With Specific Dollar Claim For Damages [Member] | Asbestos claims above $5.0 to $15.0 [Member]
Information on pending asbestos cases [Line Items]
Number of asbestos cases pending | claims-lawsuits		2		2
Claims with specific dollar claims for damages [Abstract]
Amount claimed per plaintiff, lower range				$ 5,000,000
Amount claimed per plaintiff, upper range				$ 15,000,000
Asbestos Claims With Specific Dollar Claim For Damages [Member] | Asbestos claims above $15.0 to $20.0 [Member]
Information on pending asbestos cases [Line Items]
Number of asbestos cases pending | claims-lawsuits		2		2
Claims with specific dollar claims for damages [Abstract]
Amount claimed per plaintiff, lower range				$ 15,000,000
Amount claimed per plaintiff, upper range				$ 20,000,000
Asbestos Claims With Specific Dollar Claim For Damages [Member] | Asbestos claims above $20.0 to $30.5 [Member]
Information on pending asbestos cases [Line Items]
Number of asbestos cases pending | claims-lawsuits		1		1
Claims with specific dollar claims for damages [Abstract]
Amount claimed per plaintiff, lower range				$ 20,000,000
Amount claimed per plaintiff, upper range				$ 30,500,000
Asbestos Claims Without Specific Dollar Claim For Damages [Member]
Information on pending asbestos cases [Line Items]
Number of asbestos cases pending | claims-lawsuits		267		267
Asbestos Issue [Member]
Information on pending asbestos cases [Line Items]
Number of asbestos cases pending | claims-lawsuits		389		389
Claims with specific dollar claims for damages [Abstract]
Loss Contingency, New Claims Filed, Number | claims-lawsuits		8	11	24	24
Loss Contingency, Claims Settled and Dismissed, Number | claims-lawsuits		15	14	32	28
Amounts paid in asbestos settlements		$ 300,000	$ 200,000	$ 400,000	$ 500,000

[1] Involve a total of 2,322 plaintiffs and 16,337 defendants