{"iri":"http://fasb.org/us-gaap/2026#DecommissioningTrustAssetsAmount","label":"Decommissioning Fund Investments, Fair Value","definition":"The fair value of investments held in a trust fund to pay for the costs of decontaminating and decommissioning facilities, whether such amount is presented as a separate caption or as a parenthetical disclosure on the balance sheet. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements.","license":"https://accountingfoundation.org/page/pageContent?pageId=/Termsofuse/Termsofuse.html","source":"gaap","source_url":"http://fasb.org/us-gaap/2026#DecommissioningTrustAssetsAmount"}