Environmental and Legal Contingencies (Details 4) (USD $)	12 Months Ended
	Dec. 31, 2014 plaintiffs defendants claims-lawsuits
Asbestos Claims With Specific Dollar Claim For Damages [Member]
Information on pending asbestos cases [Line Items]
Total asbestos cases pending	123	[1]
Claims with specific dollar claims for damages [Abstract]
Asbestos Lawsuits Pending With Dollars Number Of Plaintiffs	2,331
Asbestos Lawsuits Pending With Dollars Number Of Defendants	16,558
Asbestos Claims With Specific Dollar Claim For Damages [Member] | Asbestos claims up to $0.2 [Member]
Information on pending asbestos cases [Line Items]
Total asbestos cases pending	112
Claims with specific dollar claims for damages [Abstract]
Asbestos Lawsuits Pending With Dollars Lower Range	0
Asbestos Lawsuits Pending With Dollars 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]
Total asbestos cases pending	6
Claims with specific dollar claims for damages [Abstract]
Asbestos Lawsuits Pending With Dollars Lower Range	200,000
Asbestos Lawsuits Pending With Dollars 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]
Total asbestos cases pending	2
Claims with specific dollar claims for damages [Abstract]
Asbestos Lawsuits Pending With Dollars Lower Range	5,000,000
Asbestos Lawsuits Pending With Dollars 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]
Total asbestos cases pending	2
Claims with specific dollar claims for damages [Abstract]
Asbestos Lawsuits Pending With Dollars Lower Range	15,000,000
Asbestos Lawsuits Pending With Dollars 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]
Total asbestos cases pending	1
Claims with specific dollar claims for damages [Abstract]
Asbestos Lawsuits Pending With Dollars Lower Range	20,000,000
Asbestos Lawsuits Pending With Dollars Upper Range	30,500,000
Asbestos Claims Without Specific Dollar Claim For Damages [Member]
Information on pending asbestos cases [Line Items]
Total asbestos cases pending	273
Asbestos Issue [Member]
Information on pending asbestos cases [Line Items]
Total asbestos cases pending	396

[1] Involve a total of 2,331 plaintiffs and 16,558 defendants