{"iri":"http://fasb.org/us-gaap/2026#CoalIndustryRetireeHealthBenefitActOf1992Abstract","label":"Coal Industry Retiree Health Benefit Act of 1992 [Abstract]","definition":null,"license":"https://accountingfoundation.org/page/pageContent?pageId=/Termsofuse/Termsofuse.html","source":"gaap","source_url":"http://fasb.org/us-gaap/2026#CoalIndustryRetireeHealthBenefitActOf1992Abstract"}