{"iri":"http://fasb.org/us-gaap/2026#PublicUtilitiesPropertyPlantAndEquipmentTransmissionAndDistributionUsefulLife","label":"Public Utilities, Property, Plant and Equipment, Transmission and Distribution, Useful Life","definition":"Useful life of utility transmission and distribution equipment owned by public utility, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.","license":"https://accountingfoundation.org/page/pageContent?pageId=/Termsofuse/Termsofuse.html","source":"gaap","source_url":"http://fasb.org/us-gaap/2026#PublicUtilitiesPropertyPlantAndEquipmentTransmissionAndDistributionUsefulLife"}