001000 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED link:presentationLink link:calculationLink link:definitionLink 002000 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME link:presentationLink link:calculationLink link:definitionLink 003000 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) link:presentationLink link:calculationLink link:definitionLink 004000 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) link:presentationLink link:calculationLink link:definitionLink 006010 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES link:presentationLink link:calculationLink link:definitionLink 009010 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) link:presentationLink link:calculationLink link:definitionLink 007010 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies) link:presentationLink link:calculationLink link:definitionLink 006020 - Disclosure - STOCK-BASED COMPENSATION PLAN link:presentationLink link:calculationLink link:definitionLink 009020 - Disclosure - STOCK-BASED COMPENSATION PLAN (Details) link:presentationLink link:calculationLink link:definitionLink 008020 - Disclosure - STOCK-BASED COMPENSATION PLAN (Tables) link:presentationLink link:calculationLink link:definitionLink 006030 - Disclosure - DISCONTINUED OPERATIONS AND AFFILATIONS link:presentationLink link:calculationLink link:definitionLink 009030 - Disclosure - DISCONTINUED OPERATIONS AND AFFILATIONS (Details) link:presentationLink link:calculationLink link:definitionLink 008030 - Disclosure - DISCONTINUED OPERATIONS AND AFFILATIONS (Tables) link:presentationLink link:calculationLink link:definitionLink 006040 - Disclosure - COMMON STOCK link:presentationLink link:calculationLink link:definitionLink 009040 - Disclosure - COMMON STOCK (Details) link:presentationLink link:calculationLink link:definitionLink 008040 - Disclosure - COMMON STOCK (Tables) link:presentationLink link:calculationLink link:definitionLink 006050 - Disclosure - FINANCIAL INSTRUMENTS link:presentationLink link:calculationLink link:definitionLink 009050 - Disclosure - FINANCIAL INSTRUMENTS (Details) link:presentationLink link:calculationLink link:definitionLink 006060 - Disclosure - SEGMENTS OF BUSINESS link:presentationLink link:calculationLink link:definitionLink 009060 - Disclosure - SEGMENTS OF BUSINESS (Details) link:presentationLink link:calculationLink link:definitionLink 008060 - Disclosure - SEGMENTS OF BUSINESS (Tables) link:presentationLink link:calculationLink link:definitionLink 006070 - Disclosure - RATES AND REGULATORY ACTIONS link:presentationLink link:calculationLink link:definitionLink 009070 - Disclosure - RATES AND REGULATORY ACTIONS (Details) link:presentationLink link:calculationLink link:definitionLink 006080 - Disclosure - REGULATORY ASSETS & REGULATORY LIABILITIES link:presentationLink link:calculationLink link:definitionLink 009080 - Disclosure - REGULATORY ASSETS & REGULATORY LIABILITIES (Details) link:presentationLink link:calculationLink link:definitionLink 008080 - Disclosure - REGULATORY ASSETS & REGULATORY LIABILITIES (Tables) link:presentationLink link:calculationLink link:definitionLink 006090 - Disclosure - PENSION AND OTHER POSTRETIREMENT BENEFITS link:presentationLink link:calculationLink link:definitionLink 009090 - Disclosure - PENSION AND OTHER POSTRETIREMENT BENEFITS (Details) link:presentationLink link:calculationLink link:definitionLink 008090 - Disclosure - PENSION AND OTHER POSTRETIREMENT BENEFITS (Tables) link:presentationLink link:calculationLink link:definitionLink 006100 - Disclosure - UNUSED LINES OF CREDIT link:presentationLink link:calculationLink link:definitionLink 009100 - Disclosure - UNUSED LINES OF CREDIT (Details) link:presentationLink link:calculationLink link:definitionLink 008100 - Disclosure - UNUSED LINES OF CREDIT (Tables) link:presentationLink link:calculationLink link:definitionLink 006110 - Disclosure - COMMITMENTS AND CONTINGENCIES link:presentationLink link:calculationLink link:definitionLink 009110 - Disclosure - COMMITMENTS AND CONTINGENCIES (Details) link:presentationLink link:calculationLink link:definitionLink 006120 - Disclosure - DERIVATIVE INSTRUMENTS link:presentationLink link:calculationLink link:definitionLink 009120 - Disclosure - DERIVATIVE INSTRUMENTS (Details) link:presentationLink link:calculationLink link:definitionLink 008120 - Disclosure - DERIVATIVE INSTRUMENTS (Tables) link:presentationLink link:calculationLink link:definitionLink 006130 - Disclosure - FAIR VALUE OF FINANCIAL ASSETS AND FINANCIAL LIABILITIES link:presentationLink link:calculationLink link:definitionLink 009130 - Disclosure - FAIR VALUE OF FINANCIAL ASSETS AND FINANCIAL LIABILITIES (Details) link:presentationLink link:calculationLink link:definitionLink 008130 - Disclosure - FAIR VALUE OF FINANCIAL ASSETS AND FINANCIAL LIABILITIES (Tables) link:presentationLink link:calculationLink link:definitionLink 007130 - Disclosure - FAIR VALUE OF FINANCIAL ASSETS AND FINANCIAL LIABILITIES (Policies) link:presentationLink link:calculationLink link:definitionLink 006140 - Disclosure - LONG-TERM DEBT link:presentationLink link:calculationLink link:definitionLink 009140 - Disclosure - LONG-TERM DEBT (Details) link:presentationLink link:calculationLink link:definitionLink 006150 - Disclosure - SUBSEQUENT EVENTS link:presentationLink link:calculationLink link:definitionLink 009150 - Disclosure - SUBSEQUENT EVENTS (Details) link:presentationLink link:calculationLink link:definitionLink 000990 - Document - Document And Entity Information link:presentationLink link:calculationLink link:definitionLink