| Standard label: | Liability for Asbestos and Environmental Claims, Gross, Payment for Claims | 
| Name: | us-gaap:LiabilityForAsbestosAndEnvironmentalClaimsGrossPaymentForClaims | 
| Documentation: | Amount of cash outflow to settle insured claims and pay costs incurred in the claims settlement process attributable to asbestos and environmental claims. | 
| Object type: | cm:Concept | 
| Data type: | Monetary (xbrli:monetaryItemType) | 
| Period type: | For Period (duration) | 
| Balance type: | Credit | 
| Abstract: | false | 
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:LiabilityForAsbestosAndEnvironmentalClaimsGrossPaymentForClaims | 
| Label | Role | Language | 
| Liability for Asbestos and Environmental Claims, Gross, Payment for Claims | http://www.xbrl.org/2003/role/label | en-US | 
| Reference | Role | Topic | 
| FASB Accounting Standards Codification 230 10 45 17 (f) | http://www.xbrl.org/2009/role/commonPracticeRef | 230 | 
| FASB Accounting Standards Codification 944 40 50 3 (c) | http://www.xbrl.org/2009/role/commonPracticeRef | 944 |