2109100 - Disclosure - Business Segments: link:presentationLink link:calculationLink link:definitionLink 2409402 - Disclosure - Business Segments: (Details) link:presentationLink link:calculationLink link:definitionLink 2409403 - Disclosure - Business Segments: (Details 2) link:presentationLink link:calculationLink link:definitionLink 2309301 - Disclosure - Business Segments: (Tables) link:presentationLink link:calculationLink link:definitionLink 1001000 - Statement - CONSOLIDATED BALANCE SHEETS link:presentationLink link:calculationLink link:definitionLink 1001501 - Statement - CONSOLIDATED BALANCE SHEETS (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 1003000 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOW link:presentationLink link:calculationLink link:definitionLink 1002000 - Statement - CONSOLIDATED STATEMENTS OF INCOME link:presentationLink link:calculationLink link:definitionLink 2108100 - Disclosure - Contingencies: link:presentationLink link:calculationLink link:definitionLink 2408401 - Disclosure - Contingencies: (Details) link:presentationLink link:calculationLink link:definitionLink 0001000 - Document - Document and Entity Information link:presentationLink link:calculationLink link:definitionLink 2103100 - Disclosure - Earnings per Share/Capital Stock: link:presentationLink link:calculationLink link:definitionLink 2403402 - Disclosure - Earnings per Share/Capital Stock: (Details) link:presentationLink link:calculationLink link:definitionLink 2403403 - Disclosure - Earnings per Share/Capital Stock: (Details 2) link:presentationLink link:calculationLink link:definitionLink 2303301 - Disclosure - Earnings per Share/Capital Stock: (Tables) link:presentationLink link:calculationLink link:definitionLink 2107100 - Disclosure - Employee Benefit Plans: link:presentationLink link:calculationLink link:definitionLink 2407402 - Disclosure - Employee Benefit Plans: (Details) link:presentationLink link:calculationLink link:definitionLink 2307301 - Disclosure - Employee Benefit Plans: (Tables) link:presentationLink link:calculationLink link:definitionLink 2105100 - Disclosure - Fair Value of Financial Instruments: link:presentationLink link:calculationLink link:definitionLink 2405402 - Disclosure - Fair Value of Financial Instruments: (Details) link:presentationLink link:calculationLink link:definitionLink 2305301 - Disclosure - Fair Value of Financial Instruments: (Tables) link:presentationLink link:calculationLink link:definitionLink 2106100 - Disclosure - Income Taxes: link:presentationLink link:calculationLink link:definitionLink 2406401 - Disclosure - Income Taxes: (Details) link:presentationLink link:calculationLink link:definitionLink 2102100 - Disclosure - Regulatory Matters: link:presentationLink link:calculationLink link:definitionLink 2402403 - Disclosure - Regulatory Matters: Alternative-Revenue Programs (Details) link:presentationLink link:calculationLink link:definitionLink 2402406 - Disclosure - Regulatory Matters: BVES General Rate Case and Renewables Portfolio Standard (Details) link:presentationLink link:calculationLink link:definitionLink 2402405 - Disclosure - Regulatory Matters: CPUC Rehearing Matter and Procurement Audits (Details) link:presentationLink link:calculationLink link:definitionLink 2402402 - Disclosure - Regulatory Matters: (Details) link:presentationLink link:calculationLink link:definitionLink 2402404 - Disclosure - Regulatory Matters: General Rate Case Memorandum Accounts and Other Regulatory Assets (Details) link:presentationLink link:calculationLink link:definitionLink 2302301 - Disclosure - Regulatory Matters: (Tables) link:presentationLink link:calculationLink link:definitionLink 2101100 - Disclosure - Summary of Significant Accounting Policies: link:presentationLink link:calculationLink link:definitionLink 2401403 - Disclosure - Summary of Significant Accounting Policies: (Details) link:presentationLink link:calculationLink link:definitionLink 2201201 - Disclosure - Summary of Significant Accounting Policies: (Policies) link:presentationLink link:calculationLink link:definitionLink 2201202 - Disclosure - Summary of Significant Accounting Policies: Redemption of Debt (Policies) link:presentationLink link:calculationLink link:definitionLink