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Contingencies and Commitments - Asbestos Litigation Activity (Details) - Asbestos Matters
9 Months Ended 12 Months Ended
Sep. 30, 2015
Claim_Group
Sep. 30, 2015
LegalMatter
Dec. 31, 2014
Claim_Group
Dec. 31, 2014
LegalMatter
Dec. 31, 2013
Claim_Group
Dec. 31, 2012
Claim_Group
Loss Contingency Accrual [Roll Forward]            
Opening Number of Claims 3,455   3,320   3,330 3,235
Claims Dismissed, Settled and Resolved 350 350 190 190 250 190
New Claims 210 210 325 325 240 285
Closing Number of Claims 3,315 2,465 3,455   3,320 3,330