| Standard label: | Defined Benefit Plan, Health Care Cost Trend Rate Assumed, Next Fiscal Year |
| Name: | us-gaap:DefinedBenefitPlanHealthCareCostTrendRateAssumedNextFiscalYear |
| Documentation: | Assumed rate, for next fiscal year, based on annual change in cost of health care cost benefits used to measure expected cost of benefits covered by defined benefit postretirement plan. Factors include, but are not limited to, estimate of health care inflation, change in health care utilization or delivery pattern, technological advances, and change in health status of participant. Excludes factors for change in composition of plan population by age and dependency status. |
| Object type: | cm:Concept |
| Data type: | Percent (num:percentItemType) |
| Period type: | As Of (instant) |
| Balance type: | (no balance type) |
| Abstract: | false |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:DefinedBenefitPlanHealthCareCostTrendRateAssumedNextFiscalYear |
| Label | Role | Language |
| Defined Benefit Plan, Health Care Cost Trend Rate Assumed, Next Fiscal Year | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 715 20 50 1 (l) | http://fasb.org/us-gaap/role/ref/legacyRef | 715 |