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Disclosure - Leases (Components Of Lease Expense) (Details) link:presentationLink link:calculationLink link:definitionLink 41703 - Disclosure - Leases (Maturities Of Operating Lease Liabilities) (Details) link:presentationLink link:calculationLink link:definitionLink 41703 - Disclosure - Leases (Maturities Of Operating Lease Liabilities) (Details) Alternative link:presentationLink link:calculationLink link:definitionLink 00090 - Document - Document And Entity Information link:presentationLink link:calculationLink link:definitionLink 00105 - Statement - Consolidated Balance Sheets (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 00405 - Statement - Consolidated Statements Of Capitalization (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 00500 - Statement - Consolidated Statement Of Equity link:presentationLink link:calculationLink link:definitionLink 00505 - Statement - Consolidated Statement Of Equity (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 00605 - Statement - Consolidated Statements Of Cash Flow (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 10101 - Disclosure - Basis Of Presentation link:presentationLink link:calculationLink link:definitionLink 10201 - Disclosure - Revenue Recognition link:presentationLink link:calculationLink link:definitionLink 10301 - Disclosure - Goodwill link:presentationLink link:calculationLink link:definitionLink 10401 - Disclosure - Acquisitions link:presentationLink link:calculationLink link:definitionLink 10501 - Disclosure - Assets Held For Sale link:presentationLink link:calculationLink link:definitionLink 10601 - Disclosure - Capitalization link:presentationLink link:calculationLink link:definitionLink 10701 - Disclosure - Interest Rate Swap Agreements link:presentationLink link:calculationLink link:definitionLink 10801 - Disclosure - Financial Instruments link:presentationLink link:calculationLink link:definitionLink 10901 - Disclosure - Net Income Per Common Share link:presentationLink link:calculationLink link:definitionLink 11001 - Disclosure - Stock-Based Compensation link:presentationLink link:calculationLink link:definitionLink 11101 - Disclosure - Pension Plans And Other Postretirement Benefits link:presentationLink link:calculationLink link:definitionLink 11201 - Disclosure - Water And Wastewater Rates link:presentationLink link:calculationLink link:definitionLink 11301 - Disclosure - Taxes Other Than Income Taxes link:presentationLink link:calculationLink link:definitionLink 11401 - Disclosure - Segment Information link:presentationLink link:calculationLink link:definitionLink 11501 - Disclosure - Commitments And Contingencies link:presentationLink link:calculationLink link:definitionLink 11601 - Disclosure - Income Taxes link:presentationLink link:calculationLink link:definitionLink 11701 - Disclosure - Leases link:presentationLink link:calculationLink link:definitionLink 11801 - Disclosure - Recent Accounting Pronouncements link:presentationLink link:calculationLink link:definitionLink 30203 - Disclosure - Revenue Recognition (Tables) link:presentationLink link:calculationLink link:definitionLink 30303 - Disclosure - Goodwill (Tables) link:presentationLink link:calculationLink link:definitionLink 30703 - Disclosure - Interest Rate Swap Agreements (Tables) link:presentationLink link:calculationLink link:definitionLink 30803 - Disclosure - Financial Instruments (Tables) link:presentationLink link:calculationLink link:definitionLink 30903 - Disclosure - Net Income Per Common Share (Tables) link:presentationLink link:calculationLink link:definitionLink 31003 - Disclosure - Stock-Based Compensation (Tables) link:presentationLink link:calculationLink link:definitionLink 31103 - Disclosure - Pension Plans And Other Postretirement Benefits (Tables) link:presentationLink link:calculationLink link:definitionLink 31303 - Disclosure - Taxes Other Than Income Taxes (Tables) link:presentationLink link:calculationLink link:definitionLink 31403 - Disclosure - Segment Information (Tables) link:presentationLink link:calculationLink link:definitionLink 31703 - Disclosure - Leases (Tables) link:presentationLink link:calculationLink link:definitionLink 40201 - Disclosure - Revenue Recognition (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 40202 - Disclosure - Revenue Recognition (Schedule Of Disaggregation Of Revenue) (Details) link:presentationLink link:calculationLink link:definitionLink 40302 - Disclosure - Goodwill (Details) link:presentationLink link:calculationLink link:definitionLink 40401 - Disclosure - Acquisitions (Details) link:presentationLink link:calculationLink link:definitionLink 40501 - Disclosure - Assets Held For Sale (Details) link:presentationLink link:calculationLink link:definitionLink 40601 - Disclosure - Capitalization (Details) link:presentationLink link:calculationLink link:definitionLink 40701 - Disclosure - Interest Rate Swap Agreements (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 40702 - Disclosure - Interest Rate Swap Agreements (Summary Of Fair Value) (Details) link:presentationLink link:calculationLink link:definitionLink 40703 - Disclosure - Interest Rate Swap Agreements (Summary Of Amounts Recognized In Earnings) (Details) link:presentationLink link:calculationLink link:definitionLink 40801 - Disclosure - Financial Instruments (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 40803 - Disclosure - Financial Instruments (Schedule Of Carrying Amounts And Estimated Fair Values Of Long-Term Debt) (Details) link:presentationLink link:calculationLink link:definitionLink 40901 - Disclosure - Net Income Per Common Share (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 41001 - Disclosure - Stock-Based Compensation (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 41002 - Disclosure - Stock-Based Compensation (Summary Of PSU Transactions) (Details) link:presentationLink link:calculationLink link:definitionLink 41003 - Disclosure - Stock-Based Compensation (Summary Of RSU Transactions) (Details) link:presentationLink link:calculationLink link:definitionLink 41004 - Disclosure - Stock-Based Compensation (Summary Of Compensation Costs) (Details) link:presentationLink link:calculationLink link:definitionLink 41005 - Disclosure - Stock-Based Compensation (Assumptions Used In The Pricing Model) (Details) link:presentationLink link:calculationLink link:definitionLink 41006 - Disclosure - Stock-Based Compensation (Summary Of Stock Option Transactions) (Details) link:presentationLink link:calculationLink link:definitionLink 41007 - Disclosure - Stock-Based Compensation (Summary Of Nonvested Share Activity) (Details) link:presentationLink link:calculationLink link:definitionLink 41101 - Disclosure - Pension Plans And Other Postretirement Benefits (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 41201 - Disclosure - Water And Wastewater Rates (Details) link:presentationLink link:calculationLink link:definitionLink 41301 - Disclosure - Taxes Other Than Income Taxes (Details) link:presentationLink link:calculationLink link:definitionLink 41401 - Disclosure - Segment Information (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 41402 - Disclosure - Segment Information (Company's Segment Information, Continuing Operations) (Details) link:presentationLink link:calculationLink link:definitionLink 41403 - Disclosure - Segment Information (Company's Segment Information, Assets) (Details) link:presentationLink link:calculationLink link:definitionLink 41501 - Disclosure - Commitments And Contingencies (Details) link:presentationLink link:calculationLink link:definitionLink 41601 - Disclosure - Income Taxes (Details) link:presentationLink link:calculationLink link:definitionLink 41701 - Disclosure - Leases (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 41801 - Disclosure - Recent Accounting Pronouncements (Details) link:presentationLink link:calculationLink link:definitionLink