{"iri":"http://fasb.org/us-gaap/2026#PublicUtilitiesInventoryCoalMember","label":"Coal [Member]","definition":"Combustible mineral substance consisting of carbonized vegetable matter used as fuel and in production of coal gas, water gas, and coal-tar compound.","license":"https://accountingfoundation.org/page/pageContent?pageId=/Termsofuse/Termsofuse.html","source":"gaap","source_url":"http://fasb.org/us-gaap/2026#PublicUtilitiesInventoryCoalMember"}