0000001 - Document - Cover link:presentationLink link:calculationLink link:definitionLink 0000002 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME link:presentationLink link:calculationLink link:definitionLink 0000003 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS link:presentationLink link:calculationLink link:definitionLink 0000004 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 0000005 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS’ EQUITY link:presentationLink link:calculationLink link:definitionLink 0000006 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS’ EQUITY (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 0000007 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS link:presentationLink link:calculationLink link:definitionLink 0000008 - Disclosure - General link:presentationLink link:calculationLink link:definitionLink 0000009 - Disclosure - Regulatory Matters link:presentationLink link:calculationLink link:definitionLink 0000010 - Disclosure - Capitalization link:presentationLink link:calculationLink link:definitionLink 0000011 - Disclosure - Bank Borrowings and Long-Term Liabilities link:presentationLink link:calculationLink link:definitionLink 0000012 - Disclosure - Income Taxes link:presentationLink link:calculationLink link:definitionLink 0000013 - Disclosure - Commitments and Contingencies link:presentationLink link:calculationLink link:definitionLink 0000014 - Disclosure - Benefit Plans link:presentationLink link:calculationLink link:definitionLink 0000015 - Disclosure - Equity Plans link:presentationLink link:calculationLink link:definitionLink 0000016 - Disclosure - Segment and Non-Tariffed Business Reporting link:presentationLink link:calculationLink link:definitionLink 0000017 - Disclosure - Acquisitions link:presentationLink link:calculationLink link:definitionLink 9954471 - Disclosure - General (Policies) link:presentationLink link:calculationLink link:definitionLink 9954472 - Disclosure - General (Tables) link:presentationLink link:calculationLink link:definitionLink 9954473 - Disclosure - Regulatory Matters (Tables) link:presentationLink link:calculationLink link:definitionLink 9954474 - Disclosure - Benefit Plans (Tables) link:presentationLink link:calculationLink link:definitionLink 9954475 - Disclosure - Equity Plans (Tables) link:presentationLink link:calculationLink link:definitionLink 9954476 - Disclosure - Segment and Non-Tariffed Business Reporting (Tables) link:presentationLink link:calculationLink link:definitionLink 9954477 - Disclosure - General - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9954478 - Disclosure - General - Major Streams of Revenue (Details) link:presentationLink link:calculationLink link:definitionLink 9954479 - Disclosure - General - Schedule of Nonutility Properties and Real Estate Investments (Details) link:presentationLink link:calculationLink link:definitionLink 9954480 - Disclosure - 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Benefit Plans - Schedule of Net Benefit Costs (Details) link:presentationLink link:calculationLink link:definitionLink 9954489 - Disclosure - Equity Plans - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9954490 - Disclosure - Equity Plans - Schedule of Compensation Costs Charged to Income and Proceeds from the Exercise of Any Restricted Stock and Similar Instruments that are Recorded to Additional Paid-In Capital and Common Stock, by Award Type (Details) link:presentationLink link:calculationLink link:definitionLink 9954491 - Disclosure - Segment and Non-Tariffed Business Reporting - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9954492 - Disclosure - Segment and Non-Tariffed Business Reporting - Schedule of Segment Reporting Information, by Segment (Details) link:presentationLink link:calculationLink link:definitionLink 9954493 - Disclosure - Acquisitions (Details) link:presentationLink link:calculationLink link:definitionLink