0000001 - Document - Cover link:presentationLink link:calculationLink link:definitionLink 9952151 - Statement - Consolidated Statements of Income Statement link:presentationLink link:calculationLink link:definitionLink 9952152 - Statement - Consolidated Statements of Comprehensive Income link:presentationLink link:calculationLink link:definitionLink 9952153 - Statement - Consolidated Balance Sheets Statement link:presentationLink link:calculationLink link:definitionLink 9952154 - Statement - Consolidated Statements of Balance Sheet - Alternative Calc link:presentationLink link:calculationLink link:definitionLink 9952155 - Statement - Consolidated Statements of Cash Flows link:presentationLink link:calculationLink link:definitionLink 9952156 - Statement - Consolidated Statements of Equity link:presentationLink link:calculationLink link:definitionLink 9952157 - Statement - Idaho Power Company Consolidated Statements of Income link:presentationLink link:calculationLink link:definitionLink 9952158 - Statement - Idaho Power Company Consolidated Statements of Comprehensive Income link:presentationLink link:calculationLink link:definitionLink 9952159 - Statement - Idaho Power Company Consolidated Balance Sheet link:presentationLink link:calculationLink link:definitionLink 9952160 - Statement - Idaho Power Company Consolidated Statements of Cash Flows link:presentationLink link:calculationLink link:definitionLink 9952161 - Statement - Consolidated Statements of Income Statement - Alternative Calc link:presentationLink link:calculationLink link:definitionLink 9952162 - Statement - Consolidated Statements of Comprehensive Income (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952163 - Statement - Consolidated Balance Sheets (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952164 - Statement - Consolidated Statements of Equity (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952165 - Statement - Idaho Power Company Statement of Comprehensive Income (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952166 - Statement - Idaho Power company Consolidated Balance Sheet (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952167 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES: link:presentationLink link:calculationLink link:definitionLink 9952168 - Disclosure - INCOME TAXES: link:presentationLink link:calculationLink link:definitionLink 9952169 - Disclosure - REGULATORY MATTERS: link:presentationLink link:calculationLink link:definitionLink 9952170 - Disclosure - REVENUES: link:presentationLink link:calculationLink link:definitionLink 9952171 - Disclosure - LONG-TERM DEBT link:presentationLink link:calculationLink link:definitionLink 9952172 - Disclosure - COMMON STOCK: link:presentationLink link:calculationLink link:definitionLink 9952173 - Disclosure - EARNINGS PER SHARE: link:presentationLink link:calculationLink link:definitionLink 9952174 - Disclosure - COMMITMENTS: link:presentationLink link:calculationLink link:definitionLink 9952175 - Disclosure - CONTINGENCIES: link:presentationLink link:calculationLink link:definitionLink 9952176 - Disclosure - BENEFIT PLANS: link:presentationLink link:calculationLink link:definitionLink 9952177 - Disclosure - DERIVATIVE FINANCIAL INSTRUMENTS: link:presentationLink link:calculationLink link:definitionLink 9952178 - Disclosure - FAIR VALUE MEASUREMENTS: link:presentationLink link:calculationLink link:definitionLink 9952179 - Disclosure - SEGMENT INFORMATION: link:presentationLink link:calculationLink link:definitionLink 9952180 - Disclosure - CHANGES IN ACCUMULATED OTHER COMPREHENSIVE INCOME (Notes) link:presentationLink link:calculationLink link:definitionLink 9952181 - Disclosure - CHANGES IN IDAHO POWER RETAINED EARNINGS (Notes) link:presentationLink link:calculationLink link:definitionLink 9952182 - Disclosure - ASSETS HELD FOR SALE link:presentationLink link:calculationLink link:definitionLink 9955511 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES: Organization, Consolidation, Presentation, and Significant Accounting Policies (Policies) link:presentationLink link:calculationLink link:definitionLink 9955512 - Disclosure - Fair Value Measures and Disclosures (Policies) link:presentationLink link:calculationLink link:definitionLink 9955513 - Disclosure - INCOME TAXES: Level 3 (Tables) link:presentationLink link:calculationLink link:definitionLink 9955514 - Disclosure - REVENUES: Electric utility operating revenues (Tables) link:presentationLink link:calculationLink link:definitionLink 9955515 - Disclosure - COMMON STOCK: Level 3 (Tables) link:presentationLink link:calculationLink link:definitionLink 9955516 - Disclosure - EARNINGS PER SHARE: Level 3 (Tables) link:presentationLink link:calculationLink link:definitionLink 9955517 - Disclosure - BENEFIT PLANS: Level 3 (Tables) link:presentationLink link:calculationLink link:definitionLink 9955518 - Disclosure - DERIVATIVE FINANCIAL INSTRUMENTS: Level 3 (Tables) link:presentationLink link:calculationLink link:definitionLink 9955519 - Disclosure - FAIR VALUE MEASUREMENTS: Level 3 (Tables) link:presentationLink link:calculationLink link:definitionLink 9955520 - Disclosure - SEGMENT INFORMATION: Level 3 (Tables) link:presentationLink link:calculationLink link:definitionLink 9955521 - Disclosure - CHANGES IN ACCUMULATED OTHER COMPREHENSIVE INCOME (Tables) link:presentationLink link:calculationLink link:definitionLink 9955522 - Disclosure - CHANGES IN IDAHO POWER RETAINED EARNINGS (Tables) link:presentationLink link:calculationLink link:definitionLink 9955523 - Disclosure - ASSETS HELD FOR SALE (Tables) link:presentationLink link:calculationLink link:definitionLink 9955524 - Disclosure - INCOME TAXES: Level 4 (Details) link:presentationLink link:calculationLink link:definitionLink 9955525 - Disclosure - INCOME TAXES: Supplemental Disclosures (Details) link:presentationLink link:calculationLink link:definitionLink 9955526 - Disclosure - REGULATORY MATTERS: Level 4 (Details) link:presentationLink link:calculationLink link:definitionLink 9955526 - Disclosure - REGULATORY MATTERS: Level 4 (Details) link:presentationLink link:calculationLink link:definitionLink 9955526 - Disclosure - REGULATORY MATTERS: Level 4 (Details) link:presentationLink link:calculationLink link:definitionLink 9955526 - Disclosure - REGULATORY MATTERS: Level 4 (Details) link:presentationLink link:calculationLink link:definitionLink 9955527 - Disclosure - REVENUES: Electric utility operating revenues (Details) link:presentationLink link:calculationLink link:definitionLink 9955528 - Disclosure - REVENUES: (Details) link:presentationLink link:calculationLink link:definitionLink 9955529 - Disclosure - REVENUES: Receivables and Allowance for Uncollectible Accounts (Details) link:presentationLink link:calculationLink link:definitionLink 9955530 - Disclosure - LONG-TERM DEBT (Details) link:presentationLink link:calculationLink link:definitionLink 9955531 - Disclosure - COMMON STOCK: Level 4 (Details) link:presentationLink link:calculationLink link:definitionLink 9955532 - Disclosure - EARNINGS PER SHARE: Level 4 (Details) link:presentationLink link:calculationLink link:definitionLink 9955533 - Disclosure - COMMITMENTS: Purchase Obligations (Details) link:presentationLink link:calculationLink link:definitionLink 9955534 - Disclosure - COMMITMENTS: Guarantees (Details) link:presentationLink link:calculationLink link:definitionLink 9955535 - Disclosure - BENEFIT PLANS: Level 4 (Details) link:presentationLink link:calculationLink link:definitionLink 9955536 - Disclosure - Derivative Instruments Gains (Loss) on Derivatives Recognized in Income (Details) link:presentationLink link:calculationLink link:definitionLink 9955536 - Disclosure - Derivative Instruments Gains (Loss) on Derivatives Recognized in Income (Details) link:presentationLink link:calculationLink link:definitionLink 9955537 - Disclosure - Derivative Instruments Fair Value and Offsets Table (Details) link:presentationLink link:calculationLink link:definitionLink 9955537 - Disclosure - Derivative Instruments Fair Value and Offsets Table (Details) link:presentationLink link:calculationLink link:definitionLink 9955538 - Disclosure - Derivative Commodities and Disclosures (Details) link:presentationLink link:calculationLink link:definitionLink 9955539 - Disclosure - DERIVATIVE FINANCIAL INSTRUMENTS: - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955540 - Disclosure - FAIR VALUE MEASUREMENTS: Level 4 (Details) link:presentationLink link:calculationLink link:definitionLink 9955541 - Disclosure - FAIR VALUE MEASUREMENTS: Fair Value, by Balance Sheet Grouping (Details) link:presentationLink link:calculationLink link:definitionLink 9955542 - Disclosure - SEGMENT INFORMATION: Level 4 (Details) link:presentationLink link:calculationLink link:definitionLink 9955543 - Disclosure - CHANGES IN ACCUMULATED OTHER COMPREHENSIVE INCOME (Details) link:presentationLink link:calculationLink link:definitionLink 9955544 - Disclosure - CHANGES IN IDAHO POWER RETAINED EARNINGS (Details) link:presentationLink link:calculationLink link:definitionLink 9955545 - Disclosure - ASSETS HELD FOR SALE (Details) link:presentationLink link:calculationLink link:definitionLink