{"cik":49648,"taxonomy":"us-gaap","tag":"Assets","label":"Assets","description":"Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.","entityName":"IDAHO POWER CO","units":{"USD":[{"end":"2014-12-31","val":5716853000,"accn":"0000049648-15-000007","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-30","frame":"CY2014Q4I"},{"end":"2015-06-30","val":5897376000,"accn":"0000049648-15-000007","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-30","frame":"CY2015Q2I"},{"end":"2025-12-31","val":10225437000,"accn":"0001057877-26-000129","fy":2026,"fp":"Q2","form":"10-Q","filed":"2026-07-30","frame":"CY2025Q4I"},{"end":"2026-06-30","val":10866164000,"accn":"0001057877-26-000129","fy":2026,"fp":"Q2","form":"10-Q","filed":"2026-07-30","frame":"CY2026Q2I"}]}}