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Business Segment Information (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 9955557 - Disclosure - Business Segment Information (Schedule Of Operating Income Derived From Revenues And Expenses By Segment) (Details) link:presentationLink link:calculationLink link:definitionLink 9955558 - Disclosure - Supplemental Disclosures of Cash Flow Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955559 - Disclosure - Subsequent Event (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink