Details for Selection
| Standard label: | Coal Industry Retiree Health Benefit Act of 1992, Impact of Act |
| Name: | us-gaap:CoalIndustryRetireeHealthBenefitActOf1992ImpactOfAct |
| Documentation: | Description of the impact on the enterprise of providing medical and death benefits to all beneficiaries of certain earlier trusts who were actually receiving benefits as of July 20, 1992. |
| Commentary: | |
| Data type: | Text/String (xbrli:stringItemType) |
| Period type: | For period (duration) |
| Balance type: | |
| Object class: | [Concept] |